Pro Max Prop

Erik Christiansen (R) and I unveil the coveted 1650 RACE sterndrive.
Erik Christiansen (R) and I unveil the coveted 1650 RACE sterndrive.

ProMaxI just got back from the Miami Boat Show where, in addition to our unveiling of the awesome 1650 RACE sterndrive, we debuted the all-new Pro Max outboard propeller. Some of you may be familiar with the high performance 150/200/225 h.p. Pro Max outboards we produced back in the mid 1990s. I thought the Pro Max name was perfect for our new prop and it’s intended applications.

We needed a prop to help lighter weight hulls get up on plane faster and improve top end speeds. The Bravo I XS is the solution for 2-strokes carrying heavier loads. The Bravo I FS is the prop for four strokes with heavy assignments (single and multiple engine rigs) as well.  The new Pro Max fills the gap for  OptiMax ProXS and 300XS and Verado Pro FourStroke outboard applications on hulls with natural bow lift.

An Allison XS-2003 GrandSport was used to validate the Pro Max for sport boat applications.
An Allison XS-2003 GrandSport was used to validate the Pro Max for sport boat applications.

Outboard drag racing veteran Glenn Reynolds, owner of Reynolds Racing and Marine, helped validate the prop for us. Glenn ran it on an Allison XS-2003 GrandSport with the new Mercury 150 Four Stroke. He also provided an OptiMax 250 ProXS powered Bullet 21XD bass boat. Glenn and his team are ecstatic with the Pro Max. “We experienced jacket rabbit acceleration. Both boats were on plane in 1-1/2 seconds!,” exclaimed Glenn. The Allison didn’t realize any change in top-end speed due to the engine height restriction with water pickup location on the stock 150 gearcase.

“The Bullet, benefiting with a high performance Torque Master gearcase, improved on both hole shot and top-end speeds,” said Glenn. “We did back-to-back tests comparing the Pro Max with like size Pro E.T.s as well as a variety of other props. The Pro Max outperformed everything on the ramp. We love it!,” Glenn concluded.

Eric Simmons test the Pro Max on his go fast SCB flats boat.
Eric Simmons test the Pro Max on his go fast SCB flats boat.
The Pro Max prop was mounted on an OptiMax 250 Pro XS for the flats boat test.
The Pro Max prop was mounted on an OptiMax 250 Pro XS for the flats boat test.

Eric Simmons, owner of Simmons Custom Boats, was my go fast flats test guy. He too tested with an OptiMax 250 ProXS. “We’ve dialed in our boats with the Pro E.T. It’s a very durable prop. If we could get acceleration similar to what we experience with the Bravos, while maintaining the E.T. blade durability and overall performance, I would say you have a winner,” said Eric in our initial phone conversation regarding the project. “Water levels are an issue where we are. Hitting bottom is inevitable and thus blade durability is a big deal,” Eric said.

Pro Max BASS Classic. display.
Pro Max BASS Classic. display.
A Bullet 21XD similar to this was used to validate the Pro Max for bass boat applications.
A Bullet 21XD similar to this was used to validate the Pro Max for bass boat applications.

Upon completion of his tests Eric called to say we have a winner. “The Pro Max’s appeal is it’s speed and efficiency coupled with the improved hole shot realized with the through hub exhaust, said Eric. “Our testing produced considerably lower slip numbers, proving you nailed your proof of concept in every aspect. We can’t wait to get some of these for our customers,” said Eric.

Glenn and Eric have been an immense help in making the Pro Max a reality. Production starts in April. Meanwhile, I’m off to Tulsa, Oklahoma later this week for the BASS Master Classic. I will display the Pro Max there in the Mercury Marine booth. For those of you going to the show – stop by. I would love to see you and chat about props. I’m excited about the new Pro Max and our expanded mix of low emissions outboard props. Now if it would just quit snowing! Spring and Summer can’t come soon enough  🙂

 

 

 

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538 thoughts on “Pro Max Prop”

    1. Hi Justin.

      Your rig sounds nice. What props are you currently running? Please provide the style, i.e. through hub exhaust Bravo style or over the hub cleaver, size and pitch. Please also provide your speed and engine operating RPM at wide open throttle. That will help me determine the props best suited for your application.

      Scott

    1. Good question, Dustin.

      All testing to date has been focused on high speed applications for which the Fury is not intended for. We will learn more once Pro Max production begins in the Spring and people begin using them in the field.

      Scott

    1. Kevin:

      The Pro Max should be a good fit for your ProCraft. To be sure, I need a baseline to work from. Please respond with information regarding the current prop style and pitch you are running. Your speed and engine operating RPM at wide open throttle would be helpful as well.

      Scott

  1. I have a 2200 Gambler w/250XS with 1.62 gears. I currently run a modded 26 Fury. How well would this prop run with my set-up?

    1. Hi Danny,

      Sounds like a hot setup. What pitch Fury are you running? What is your engine operating RPM and boat speed at wide open throttle?

      Scott

  2. Scott running a 27 trophy plus on 300hp merc. Engine height 35mm below plank revs 6250. Towing one skier to 84mph. Run a 30 ET pro labbed to similair revs to 87mph. Interested in thoughts and pitch for this prop. Sounds very interesting.

    1. Jeff,

      The Pro Max should be more efficient than the 30 E.T. and the Trophy. One of the criteria during the develop process was to ensure the prop would stay hooked up through tight turns. This was accomplished, in part, by the positioning of the blades where they mount to the hub.

      Scott

  3. Hi Scott, How about an Allison XB21 BasSport Pro/Merc 250XS 1.75 gears combo?? Currently running a worked Bravo with dual PVS holes even to 1/2″ above the pad?? Any testing done with your new prop for surfacing? Thanks, Craig

    1. Hi Craig,

      This will be your prop of choice. We did some testing with Darris Allison (he thinks it’s awesome). We had the pleasure of hosting Darris in the Mercury booth at the Miami Int’l Show. Darris said, “You all are going to sell a lot of these Pro Max props.” Good stuff.

      Scott

          1. thanks for the reply Scott. I’m currently running a 30P Bravo 1 with dual PVS holes and the outer ones closed off. I’m a bit over 6000 RPM’s, 90 mph, good hole shot and good mid-range punch with full load and two people.
            Thanks
            Craig

          2. Craig,

            If you have a Bravo I with dual PVS installed, I’m thinking your prop blades have been modified also. It can be challenging to get the correct pitch, depending on the work that was done. I’m thinking a 29-inch pitch Pro Finished version of the Pro Max.

            Scott

  4. I’m running a 26 pitch Fury. Its been worked up about 26.5. My RPM limiter is set at 5850. I can twist up the Fury to 5820 at 82-84 GPS. Im looking into getting the ECU reprogrammed and propping it to turn 6000 RPM.

    1. Danny,

      You are getting good numbers with the Fury. The Pro Max should get you similar numbers at the current height. The Fury runs better deeper in the water. The new Pro Max is designed to run higher. Raising your engine with the Pro Max should give you a couple more mph.

      Scott

  5. Currently running a Kevlar flats boat with a 250XS and Torque Master. I like the Bravo XS, but wish it had more bow lift. Do you expect the Pro Max might carry the bow a bit better?

    1. Kevin,

      The Pro Max will offer a tremendous amount of lift, substantially more than the Bravo I XS. It’s going to be your prop. Expect to hit higher numbers.

      Scott

  6. I also have a Gambler 2200 with 250 ProXS with 1.75 gears, Torque Master L.U., 12″ Bob’s hydraulic jackplate. Running a 28 pitch Bravo I B&B dual pvs @ 5800-5900 RPM depending on humidity and air temp, 77-79 MPH.

    1. Robert,

      You’re going to enjoy the Pro Max from hole shot to wide open throttle. We did some testing with Bob Ackerbloom from Gambler/Shearwater. He stated he has never run anything that has performed like the Pro Max….ever! It features zero balanced blades with tuned leading edges, durable trailing edges (X7 alloy helps) and a massive amount of cup. The cup and parabolic rake offers increased bow lift to achieve even greater top end numbers.

      Scott

        1. Terry,
          Sorry I missed the pitch. It’s either a 26″ or 28″ – depending on the gear ratio.
          Scott

  7. Hi Scott. Currently have a 250XS on a 22″ pad vee bottom weighing 1850 lbs fully rigged w 4″ setback. My best prop is a Pro ET 28 Lab Finished, spinning at 6200 – 6300 RPM at 85 – 86 MPH. How does the new Pro Max compare to the Pro E.T. in terms of Pro ET Revs vs Pro MAX Revs (both Lab Finish and Pro Finish)?

    I would ike to know what pitch I will be needing to keep the revs just about the same as they currently are with the Pro ET (while improving my holeshot and mid-range acceleration).

    Also, did you observe any top speed differences (again same pitch & finish between the Pro ET & Pro Max)?

    Thanks

    1. Hi Joe,

      Great set up. You are really going to enjoy the Pro Max. We gained 150 RPM and 2.5 to 3 MPH speed increases when comparing the 28″ Pro Max with the 28″ Pro E.T. You should be able to move up from your 28″ pitch Pro ET to the 29″ pitch Pro Max. Good stuff!

      Scott

      1. Thanks for the reply. So a 28 LAB finished ProMax should rev approx 150rpm more then a 28 LAB finished Pro ET? Also, when comparing the latter 2 props (both lab) should the Lab ProMax have greater bow lift then the Lab Pro ET?

        1. Joe,

          It’s looking like it will, which means moving up one more inch of pitch.
          Bow lift will be greater with the Pro Max.

          Scott

  8. 1995 Gambler 2009 225 Pro XS. Best prop to date has been a 27p Trophy that has additional cupping. With a light load 80-81mph @ 5800 rpms approx. 2″ below the pad. With a heavy load I’m seeing 77-78mph. I have tried a 28p Bravo 1 XS and lost about 4mph and a 26p Bravo 1 XS and lost a similar amount though the rpms were 5990-6010. Also tried a worked 26p Fury which took forever to get up to speed.

    I am a bit confused though as published information indicates the Pro Max is designed for hulls with natural bow lift. But in reading some of these replys you indicate the Pro Max provides outstanding bow lift. My 209 hull thrives on bow lift! As stated, for me, the Trophy has been the prop of choice with the negative coming in it’s inability to carry the bow at elevated engine heights. Welll.. there’s another negative but I won’t go there….:>)

    1. The Pro Max has a parabolic rake. As you move out to the tip of the blades, the rake increases. This results in great bow lift. It also has a tremendous amount of cup, especially at the maximum diameter. This enables the prop to stay hooked up as the engine height is elevated. The Pro Max will also over come the other drawback you didn’t want to mention about the Trophy. The prop just rocks.

  9. Saw testing was done with Glenn Reynolds. I have that combo, a 21XRD Bullet with 250 ProXS. What speeds were they running and what pitch would you think would be right? 1:75 gears.

    Thanks,
    Ronnie

    1. Ronnie,

      Running a 1.75:1 Torque Master gearcase, the Pro Finish 28″ Pro E.T. enabled the engine to turn 6050 to 6100 RPM at 84.7 mph. The Pro Finish, 28″ pitch Pro Max turned 6200 RPM at 87.9 mph. Boat set up and bottom work was done by Glenn Reynolds. Good stuff.

      Scott

  10. If I am currently running a 26P trophy Plus to 5800 RPM’s WOT to 70-71, will this be a pitch for pitch prop or will I need to go one way or the other in pitch?

  11. I currently run an Allison GrandSport w/200hp OptiMax, coned 1.75 gearcase, 28″ pitch Hydromotive turning 5800 rpm @ 82 mph with 4 people in boat. With only two people in boat, it’s all over the limiter. Would I need to go up in pitch, or stay with a 28″ Pro Max?

    1. Hi Scott,

      It’s too early in the game to give you an idea how the Pro Max pitch compares with the Hydro. Hydro’s seem to be a little tall in pitch. A lot of it depends on what they did to it.

      Scott

  12. Hi Scott. I run a 2200 Gambler with a 250 Pro XB. Torque master LU. I run a worked 28 Bravo I w/ dual PVS at 81-82 GPS @ 6200 rpms. I’m plugging the top three holes on the LU soon to maintain WP at higher JP heights.

    Would the new ProMax outperform this in your opinion?

    1. John,

      The Bravo I is a great prop but this Pro Max will out shine it. Looking forward to getting the Pro Max in the market.
      Thanks,

      Scott

  13. Hi,

    Congratulations with a great prop!

    I have a 25 feet 30 years old Phantom offhore hull with a Verado 350 sci. Weight is approx 2,850 lbs. Best prop has been a Rev4 25 pitch prop spinning 6,500 rpms at 81-82 mph. Gears 1:1,75. I have tried Bravo 26 prop but lost 4-5 mph despite being able to jack the engine higher. Not enough bowlift. I got 78-79 mph at 6,400-6,500 rpms with a A45 Tempest 25, and 77-78 mph at 6,500 with a labbed Mirage Plus 25. The latter lost bite quickly.

    So Rev4 25 is the best prop per now, but it loose bite when I jack it up. And I have at least 1 inch more to go before loosing waterpressure. I am now 30 psi.

    Do you think the Prom Max prop could be the trick being able to be jacked higher and still keep the bow up?

    Have a great day and thanks for your service and amazing products 🙂

    Cheeers, Toffen

    1. Hi Toffen,

      Wow. What a set up! It sounds like you’re benefitting from the Rev 4’s. The enhanced cup wrapped around the blade tips is providing incredible speeds. The Bravo I’s cup falls off at the maximum diameter. That is why it is not staying hooked up and thus scrubbing speed. I can’t say for sure, but I suspect the Pro Max will be a top performer given its blade shape and large blade cup. The only question I would have is regarding the barrel or exhaust tube. The Rev 4 has a large barrel which is lifting the stern of your boat. The Pro Max barrel a smaller, similar in size to the Trophy. The Pro Max, with its larger 14.50” diameter, will create more bow lift than the Trophy. I hope you can get your hands on the Pro Max and try it out.

      Enjoy,

      Scott

  14. I have a new Bullet 21SS and have a new 250 Pro XS coming in a few weeks that will have the new Gen 2 Torque Master gear case. I was told the Bravo 29 would have been great chooce if I had the old style Torque Master but with the new Gen 2 version no one can really tell me much. I have also been told the Gen 2 version will need a smaller prop vs. the old model. Any insight on this new prop with the new Gen 2 lower unit on a Bullet 21 SS?

    1. Gary,

      Awesome set up. We will be sending some Pro Max props to Bullet for testing with the Mercury rep. It will be compared to the Bravo I XS on the new gearcase. Looking forward to the results.

      Enjoy.

      Scott

        1. Chris,
          The Pro Max runs tall in pitch compared to the Bravo I XS and Tempest. Typically – the 26″ Pro Max is equivalent to the 27″ Tempest and the 28″ Bravo I XS.
          Scott

  15. I have an Allison Grand Sport with a 225 proMax turning a 25 trophy pluss 7400rpm ,1.87 gears, Low Water pick ups to 89mph at 1/4 below. I can run larger diameter props up to 3/4 above. What pitch at what engine hight would you recommend for good hole shot and mid range to WOT. Will the new PM prop be a surfacing prop or semi surface? Will pitch be odd and even or just every other pitch. Also whats the dia? Thanks looks sweet!

    1. James,

      The Pro Max is designed for a variety of performance applications. It’s a surfacing prop when used with the Sport Master gearcase on lighter hulls with natural lift. It also performs well with Torque Master, Torque Master II and Verado gearcases in semi-surfacing applications. The 14.50″ diameter is a little larger than the Trophy, and thus fine tuning the engine height will be needed to dial it in for maximum performance. The goal is pitch for pitch, but we won’t know for sure until we get them out in the market.

      Thanks,

      Scott

  16. I’m currently running a Stratos 294 Evo with 200 Yamaha HPDI. I’m currently turning a 27p T1 running 72.4 mph @ 5650rpms, set 2 inches below the pad. I have better than average hole shot and feel like this prop performs fairly well on my boat, but like everyone else, I always want to up numbers if I can. I haven’t read anything about how the Pro Max compares to the T1’s, so what would you expect/guess it would perform compared to what I’m seeing now?

    Thanks man

    1. Hi Chris,

      Good question. We haven’t had an opportunity to test the Pro Max with your engine. We sure would like to see a comparison between the two. Let us know if you get to it before we do. We’ll share your results here.

      Thanks,
      Scott

  17. I have an Allison xb21 bassport pro, single console, with 300xs 1.62 gears on a cmc jack plate. I have run 28 pro et in pro and labbed finish, with marginal results. I am currently running a 15×28 3 blade performance overhub, as well as 3 blade mazco re 14 1/2 28 and 30. The 30 is too tall for a full fishing load, but runs 94.2 with me and a light load. I would like to return to Mercury, and I hope this Pro Max prop will do it. Any idea on pitch for me? The above props run 6200 wot. jack plate all the way up. Thanks

    1. Tory,

      We’d like to see you back in our camp. Three blade props, by design, enhance bow lift. The four-blade Pro Max will lift both the stern and the bow. I’m hopeful the high blade rake and trailing edge cup will provide the bow lift you need. As for pitch, the Pro Max picks up 100 RPM over the 28″ Pro ET (Pro Finished – polished version), so you might be able to run the 29″ pitch.

      Thanks,

      Scott

  18. Hi,

    Thanks so much. Just forget to say we have shortened the tube with 30 mm. I gained 1-1,5 mph on doing this. Very happy with the Rev4 🙂

    Will try to get hold of a Pro Max 26 prop. Whats the difference between a lab and pro version?

    All the best, Toffen

  19. I am the original and only owner of a “classic” 1977 Sleek-Craft 20′ modified tunnel, and I have a 1999 Merc Pro Max 225 (with the Sportmaster gear case) on a Stainless Marine hydraulic transom jack (and about 10″-11″ of set-back). This sounds like a very promising prop for my hull and engine combination. Would you agree? Note: My only prop at this time is a 20″ four blade non-Mercury modified prop that is good only for towing watersports….so I have no real “baseline” as to how fast this boat can really go with the Pro Max on the back (but I would think at least 80+ mph). With my old 1977 175 Mercury “Black Max” on this boat, however, I could run about 69-70 mph with a 14″ x 26″ modified three blade chopper prop (which I no longer own). I can run almost that fast now with the 225 Pro Max and the referenced 20″ ski-prop….but as you might expect, the engine is “against the red line limiter” at wide-open throttle (around 6700+ rpm). Comments? Thanks!

    1. Bill,

      Cool boat. Keep your low pitch prop for the water sports activities. If you are looking for a high speed prop, the Pro Max would be a good choice. It’s hard to say for sure what pitch to run but the numbers point toward a 25″ or 26″. As with all props, you won’t know until you try it.

      Enjoy your boat,
      Scott

  20. Have you ran the pro max on any Nitros yet? I have a Nitro Z8 DC with 250 pro xs (no torque master). I have a 26 pitch fury prop and am about 3 1/4″ below and 10″ jack plate. I get anywhere from 68-73 MPH at 5800-5900 RPM depending upton the conditions. What are your thoughts? Will the pro max improve my top end speed? 26 pitch or 27 pitch? Thanks!

    1. Hi Jeff,

      I wish we did but not yet. We’ll have to wait until May when the 25″ and 26″ pitch models are available. The Fury is a good prop for your setup; especially with light loads. The Pro Max will be interesting. I’m looking forward to seeing how they perform on the Nitros. I’m thinking it will be pitch for pitch with the Fury. Tim will tell.

      Thanks,
      Scott

  21. Scott,

    What would be the difference in performance between Pro Finish and Lab Finish? I understand that the Pro Finish is better suited for heavier boats. In terms of a Pad vee single outboard, what weight and what set up will determine which type of finish is suitable? In terms of mid range and top end when comparing Lab variant to Pro variant.

    Thanks.

    1. Joe,

      The Pro Finish Pro Max leading edges are wedged (not as sharp as a Lab). The blades are thicker and more durable than the Lab Finish. The Pro Finish is polished or shiny compared to a satin or dull Lab Finish. Pitch for pitch, the Lab will produce 150 rpm over the same pitch size as the Pro Finish version. The Lab Finish Pro Max blades are thinner with sharp leading edges designed for maximum efficiency. Lab Finishing is really more for racing or if you’re looking for bragging rights with the extra 1.5 mph. For the best overall performance, my money is on the Pro Finish version.

      Thanks,
      Scott

        1. Joe,

          Pitch for pitch, the Lab Finished Pro Max will accelerate faster in the mid range and the Pro Finished Pro Max will provide better fuel economy at mid range.

          Scott

  22. Tried to buy a 32″ Pro or Lab finish today… could not due to being unavailable, please keep us updated when these are ready to be purchased. Should be interesting to see how this prop compares and what kind of slip numbers it produces…

    1. Capt. Adam,

      Pro Max production begins next month. We’ll start with 25-28 inch pitch models and follow-up with the remaining pitch range toward the end of May.

      We’ll keep you guys posted as they become available.

      Thanks,
      Scott

  23. Sign me up I’ll take a 30 or a 32 depending on how stiff they are.

    Ready to see how this will run on my Stroker hull, 300, currently at 16in total of hydraulic jack plus hydrotech adjustable setback, +2.5 above the pad. Built bravo 1’s & lightening ET’s run great on these boats and are the main choice for these boats. I am very Anxious to see how this pro max prop runs. How are the blades going to hold up at + engine heights?

    1. I’m just as anxious as you. Hope to see the 30’s mid May and 32’s in late May. The blades should be good. The X7 alloy helps with that.

  24. Have a 2008 21 ft checkmate pulsare open bow with 250 vmax 3.1. 14.5 inch set back running at even to 1 inch below the pad. Worked 30 bravo 1 at 5600-5700 rpm is 81.3. Worked 28 bravo 1 is 5800 at 80. 29 T1 from Yamaha is 5900 rpm at 83. All speeds are GPS and every day speeds not the fastest speeds this props have gone. What pitch would you recommend ?

    1. Don,

      Shoot for a 29″ pitch Pro Finish Pro Max. It’s hard not knowing what work was done to the 28″ and 30″.

      Scott

    1. Terry,

      Yes. The Pro Max should be more durable as the leverage point has shortened. That, coupled with stout blades, results with improved prop life when compared to the ET.

      Scott

  25. Scott, Will the 1 pitch increments in the Pro finish result in the Odd pitches (25,27-29) having the same pitch as the even increment pitches (24,26,28) but with more cupping?

    1. Joe,

      Great question and thanks for asking it. Pitch is measured from the leading edge to the trailing edge. At Mercury, we factor the cup height into the overall pitch. Pro Max props are cast in 2″ pitch increments; 24″, 26″, 28″, 30″ and 32″. We are able to offer odd pitch sizes by removing some of the excess blade cup height. Every 1″change in results in as 150 RPM change in engine speed. The Pro Max is a very cool prop.

      Thanks,

      Scott

      1. Thanks. So which will have more cupping hence slightly more bow lift, the odd or even pitches? I ask as when testing with previous Tempest props on my boat, comparing a 25,26 and 27, the 27 is fastest overall, followed by the 25, then slowest; the 26. So It seems that the boat likes the odd Tempest pitches better.

        1. Hi Joe. Scott is out of the office this week. he will reply to your question at his earliest convenience upon his return next week.

          Rick

  26. Allison XB 21 Bassport pro with a SHO 250 1.75 gear stock lower unit. I have not ran the boat yet. What would be your suggestion on pitch with a Promax in the pro finish? I have a Bravo 1 XS 26 that I will run when the ice goes out. How will this prop run on this boat? what pitch would you start with? I have not ran it yet so I have no numbers to go by. People are telling me 29 pitch.

    Thanks.

    1. Kevin,

      The Pro Max should be great for the Allison XB 21. I would lean toward the 29″ pitch Pro Max (Pro Finish). With 1.75 gears, 6 to 7% slip, 5850 to 6000 RPM, I’m guessing you hit 86 to 88 mph.

      Here’s to the ice going out.
      Scott

      1. Scott
        Thank you for that information. Do you know for sure when the 29 Pro Max will be available?
        I need one ASAP.

        1. Kevin,

          I wish I could give you a confirmed date. I would like to see you get one ASAP. Unfortunately, we are behind schedule by four weeks. The 29″ is now slated for June production. I apologize for the delay.

          Scott

  27. Im running a basscat cougar with a 250 pro xs with a 27 trophey top end is good 5850 at 82 plus
    but hole shot is poor at best . what size pro max should i get

    1. Scott,

      The 27″ Trophy is a little tall in pitch. Go with the 28″ Pro Max (Pro Finish). The Pro Max will offer better planing and it looks like you can expect to gain 1.5 mph (maybe 2).
      Thanks,

      Scott

    1. Fred,

      What are you running for power and what prop are you using? Can you supply pitch, style, engine RPM and speed at wide open throttle?

      Thanks,
      Scott

      1. 250 XS. Just tried 24ot4 turbo. 5800 rpm. still in breakin. Bow sat on the water. Could not get it to lift.

        1. Hello Fred. Scott is out of the office this week. He will reply to your message upon his return next week.

          Rick

  28. Scott,
    I currently run a Stratos 201 XLE with e-tec 250 HO.
    I am running a 26p Trophy Plus at 3″ below pad.
    I can get 5800 RPMs and 69 mph with a full load and two people.
    I get average hole shot and am looking for something better in this category.

    Do you think the Pro Max will help my set up with hole shot and maybe even squeeze out a couple more MPH on the top end?

    If so, what pitch would be best if I currently run the 26p Trophy Plus?

    1. Jerry,

      Run pitch for pitch, so a 26″ pitch Pro Max. Planing will improve and expect to see a 1 to 2 mph increase in top-end speed.

      Thanks,
      Scott

  29. Have you run these on any 150 HP’s yet??
    I have a Bass Cat Sabre with a XR-6 turning a 24 Fury to the limiter (5750) and a 25 Tempest keeps me down to 5550 and both running around 67 mph gps (68.6mph being the best). I am hoping that the Pro Max 24 will get me back to just below the limiter and a couple mph….What do you think?

    1. Darren,

      Yes. We have run the Pro Max on the new 150 four-stroke and worked fantastic. The Fury is a fast prop, especially with a light load. It will be a challenge to beat it unless you can turn a 25″ Pro Max to match the RPM you get with the 24″ Fury. The 14″ diameter Fury likes to run deeper in the water compared to the 14 5/8″ diameter Tempest and the new 14 3/4″ Pro Max. If you could increase engine height, without any loss in boat control and water pressure, you might be able to keep the RPM up with the 25″ Pro Max.

      Thanks,
      Scott

  30. I have paramount 21 center console
    I run 25 tempest plus
    My engine is 200hp blackmax carb
    Speed 62mph
    Rpm 6200rpm
    What is the defrant between ithe new promax with the tempest plus
    Thanx

    1. Seadooq8,

      Looking at your numbers, it appears you’re slip number is 21% – which is high. The prop slip on a boat like yours should be closer to 12%. Your engine RPM also seems high, by 300 – 400 RPM. Has the prop been damaged and repaired which might account for the higher RPM and lower speeds? It’s hard to say how the Pro Max would work on you rig. The 3 blade Tempest might offer the best top-end speed for your style of boat. The Bravo I XS, which delivers bow lift, might be the better four blade for running in rough seas. That being said, it will also be two mph slower than the Tempest. Before I recommend a pitch for the Bravo I XS can you clarify why you are getting 21% slip?

      Thanks,
      Scott

  31. I have a 115 Pro XS and run a Laser II prop. This works very well, but I’m always looking for something to give an extra mile or two. I read that the Pro Max is rated for 115 – 300 HP.
    Will this fantastic prop realy fit my engine?

    1. Hello Rupert:

      Scott is out of the office this week. He will reply to your message upon his return next week.

      Rick

  32. Scott; I’m running a new Pro XS 250 with the new Gen 2 Torque Master gearcase. I was running a Pro XS 250 with old Torque Master. I have always ran 26 Tempest Plus worked with 25 inch engine height. Never had cavitation problems with that setup. Was running 72-73 with tournament load. Now I’m running 68.8. Now with plate all the way down, can’t keep it from cavitating. Mercury says Gen 2 should be 1-2 mph faster but I’ve lost 4 mph. Does this lower unit just not like the Tempest prop? I’ve tried all heights from all the way down to 25 inch high. Still turns 5900 with Gen 2 as did the other lower.
    Do you think the Pro Max prop will get my mph back? That’s a big mph drop just from a lower. I’m sick I ever bought this thing. Triton X2 21 1.75:1
    Thanks for advice, Jimmy

    1. Hello Jimmy:

      Scott is out of the office this week. He will reply to your message upon his return next week.

      Rick

  33. Hi Scott,
    I have a Triton TR-22 2005 with a 2005 Mercury Pro Max 300X and a 26 Fury (no work done on prop). This setup runs 82-83 mph at 6800 RPM and works great all the way. I’d like to run the motor a bit lower in RPM. Is a Pro Max 27 Pro Finish a good choice for me?

        1. Hi Moe,
          No we didn’t forget about you. It’s that time of the year so we’ll be full throttle until October. The Fury runs tall in pitch so you’re right to go with the 27″ pitch Pro Max.
          Thanks,
          Scott

  34. Hi Scott, I have a Hydrostream voyager with a PM300 and a 1:62 sportmaster. I run 100 mph with a 28 lightning ET lab at 6400 rpm. Would a 28 Pro Max Lab be a good choice, also what do you think the speed and rpm would be, will it bog the engine out of the hole without any exhaust holes? I was thinking of buying a 4 blade pro et lab but now I see this new prop and wondering which one would be the best choice. Thanks

    1. Gary,

      The Lightning E.T. will probably be your fastest prop when compared to the Pro E.T. and Pro Max. If you decide to use the Lightning E.T. as your top-end speed prop, I would go with the Pro Max as your go fast fun prop. The number and size of exhaust vent holes are dependent on the design of the prop. The Pro Max has a small diameter exhaust barrel. Exhaust, flowing over the exhaust barrel at start up, provides the venting needed for an exceptional planing performance.

      Scott

  35. Majek 22 extreme with 250 SHO running a 25p rev 4 now hitting high 60s at 5800 rpm but horrible hole shot what you think?

    1. Teren,

      Preliminary data shows this prop will well on your set up. Our prop testing has been limited with Mercury outboards (two and four stroke) along with an assortment of hulls. Running a Pro Finished 25″ pitch Pro Max may increase your rpm to 5850 to 5900. A 26” pitch would drop rpm (5750 to 5700) It all depends if you can make some engine height adjustments. I’m looking forward to getting this prop out there. The proof is not in the pudding but in the water.

      Scott

  36. I have a 2013 Bass cat Courgar with the 250 Pro xs sport master, came with 25 tempest plus running 71-73 at 5750rpms . Tempest likes to run 3.5 below pad which pitch Pro Max would you recommend . Thanks Mike

    1. Mike,

      The Pro Max is designed to run at your level or higher with a Sport Master gearcase. However, just because we can raise the engine/prop shaft doesn’t mean it will enhance performance. Boat designs vary and all have limitations. We have to be careful with the height of our engines. If an engine is elevated too high, the stern can lift at high speeds resulting in gearcase blowout. You lose all control and the boat can turn violently with no warning (hard on the ribs). The only way to know if a prop is right for your boat is to test. Run the Pro Max at you current height for a bench mark, then raise the engine 1/4″ at a time and test again. Run pitch for pitch.

      Scott

        1. Mike,
          If you’re running the Cougar, I think the Fury might be the route to go. Rick Pierce, Bass Cat boats, really likes the Fury for light loads. We haven’t had a chance to compare the Pro Max with the Fury on the Bass Cat. We hope to get that done soon. Fury’s run tall in pitch so consider the 24″ pitch compared to your 25″ pitch Tempest.
          Scott

  37. I run a 27″ trophy on a Tr21 with a 225 efi. I just threw a blade on the trophy and was wondering what size pro max I’d need and what hub kit they take. The trophy was made from the X7 alloy and was faster than my older trophy.stric

    1. Dwight,

      The 27″ Pro Max will offer a little more rpm and the 28″ will drop the rpm. The 27″ Trophy falls in-between because it’s more like a 27.5″ pitch.

      Scott

      1. My question now is will the 27″ be enough. The lady that I placed the order with said the 28″ would probably be too much now your saying I may need the 28″.

        1. Dwight,

          It depends on where you want to be for RPM at WOT. What did you get for RPM and GPS speed running the 27 Trophy?

          Scott

          1. I turn 5750-5800 at 77-78 mph in cold weather by myself with 1/2 tank of gas and water in passenger live well.

          2. Dwight,
            I haven’t run the Trophy and Pro Max back to back. I’m thinking, in the cold, the 27″ Pro Max should hit 5800 to 5900 rpm. If you get that with the 27″ pitch, then the 28″ pitch might be a little too stiff, especially in warmer summer weather.
            Scott

  38. My question is what will the Pro Max give me that the Trophy isn’t? I’m fixing to get a Bobs hydraulic 8in jack plate… Will this help or hurt? Will I be able to run higher and not worry about slinging a blade? Right now I’m running at 2.5 below the pad. Will the Pro Max have pvs holes drilled? Will the Pro Max be a larger diameter prop then the Trophy? How about the hub size, will there be a need for a blow out ring? Finally, do you suggest the Pro Max for my setup?

    1. Phillip,

      Looking at box stock props, the Trophy is a good but the Pro Max should offer better overall performance and durability. The 8″ jack plate might offer a little better performance when you marry with the right prop. I think the Pro Max, with its tremendous cup wrapped around the blade tips, will give you what you’re looking for with the set back. The Trophy is 13.75″ in diameter. The Pro Max is 14.75″. The props share the same hub size. The Pro Max doesn’t have vent holes nor does it need them. There’s enough exhaust venting over the small hub. The plastic blow out ring fitted over the front of the Trophy would hurt the Pro Max’s planing performance. I think the Pro Max would be a fun prop for your set up.

      Scott

    1. Hi Phillip. We received your message. Scott just returned to the office after being out all last week. He is catching up and will respond to your questions as soon as he can.

      Rick

  39. Why is the prop listed in two diameters 14 3/4″ and 14 1/2″ and it’s a thru hub exhaust with no vents correct.

  40. Scott, is there any differences in the amount of cup between pitches? Wasn’t that a difference on the BravoXS, odd pitches had more cup than even?

    1. Adam,
      The Pro Max propeller design is different than the Bravo I XS; that difference works its way into the cup. The Pro Max odd pitch has less cup than the even pitch; with the Bravo I XS it’s the opposite. The even pitch models have less cup than the odd.
      Scott

  41. Hello. I have a Cougar MTR 22 w/300XS engine. My fastest prop was a stock Pro ET 28 at 94 mph. For an over all prop, it’s not a good choice. Presently I have the Bravo I XS in pitches 26,2 8, and 30 which I purchased last season because the 28 RPM was very close to the limiter (6200-6300). The problem is the 30p holds the rpm down to maybe 3000 until the hull pops up on plane which takes almost 45 seconds. Need your suggestions on how this new prop compares to the XS?

    Thanks.

    1. Larry,
      The Pro Max will deliver comparable top-end performance (or better) as the Pro ET. The over-the-hub exhaust on the Pro ET hampers hole shot. The Pro Max, with it’s through hub exhaust, cures that issue. Back to you high pitch Bravo I XS. For your application, you may need an additional four holes machined into the exhaust barrel for enhanced venting. Dependent on application, the higher pitch props need additional venting.
      Scott

  42. Scott,
    I have a 21 foot Blazer with a 300X Pro Max and 1:75:1 Sport Master gearcase. I am running a 26 Bravo I XS. Would the Pro Max prop be a better prop to run? Can get mid 80’s with the Bravo I XS. The Bravo has great bow lift with a load. Will the Pro Max prop have the same lift and top end speed as the Bravo or will it be better or worse? I have also ran choppers with additional cupping from a local propeller guy, with some success. The choppers seem to suffer with a load vs the Bravo I XS. What do you suggest?

    1. Jared,
      The Bravo I XS is an awesome load carrying prop. Depending on how loaded the boat is, it might be the better of the two. To run the Pro Max, you would have to step down to the 25″ pitch to achieve similar RPM as the 26″ pitch Bravo I XS. To be honest it’s too close to call.
      Scott

  43. I have a Bullet 20XD and I’m re-powering with a new 250XS Sport 1.62. Old engine was a 225x and I was running a 26P at 6700-6800 RPM. Going from the 2.5L 225 to the 3.0L 250 doesn’t give me any current knowledge on the right setup. That said, which Pro Max prop would you recommend based on the 20XD/250XS Sport? Thanks!

    1. Jeff,
      You will probably be looking at the 28″ pitch Pro Finished version of the Pro Max.
      Scott

    1. Richard,
      We haven’t tested the Pro Max with the Verado yet, but we’re certainly looking forward to it. Typically, your rig would either use the Mercury Lab Finished Bravo I or the new Bravo I FS. The four blade Bravo offers great hole shot and stern lift, enhancing overall performance. I plan to test the Pro Max with an authorized dealer and customer to compare Pro Max with the Bravo I. The Mercury dealer would have to contact me to get approval for the test. The customer would be required to purchase the Pro Max from the dealer. If the prop doesn’t work, out the dealer would send the undamaged prop back to me at Mercury Racing for credit. Once we get results, we can post the information so others get an understanding regarding the performance difference between the two.
      Scott

  44. I have a Gambler 206 with a 2000 Pro Max 2.5 225. I just bought the boat and it’s not getting the kinds of speeds it should get. It has a 25 Tempest on it now and it jumping out of the hole like a raped ape, but I can only get 71 MPH @ 5,950 Rpm. From my understanding this is a 6,500 Rpm motor. I was about to buy a 26 Fury until I came across this article. Please let me know what you think! … I have a need for Speed!

    1. Eric,
      Please provide the style of gearcase you have as well as gear ratio. Also, I’ll need you to measure the distance from the center of prop shaft to the bottom of the boat. Is 71 MPH on GPS? Can you let me know what the condition the prop is in (has it been repaired or modified)?
      Scott

  45. I have a 2011 sterling bass boat made by gambler and I have a mercury 250pro-xs, and a 29 bravo xs , turn right at 5980 to 6000 rpm, speed 80.7 gps , will the 28 or 30 pro max run faster top end and still get out of the hole as good a the 29 bravo xs. thanks jr britt

    1. JR,
      The 28″ pitch Pro Max should provide similar RPM as the 29″ Bravo I XS. The hole shot should be very comparable to the XS. You can expect to gain 2-3 mph in top-end speed with the Pro Max. I’m looking forward to getting the Pro Max out there. We expect to ship the 27″ and 28″ pitch models by the end of May.
      Scott

      1. if i were to order a lab finished pro-max should i go with the 30pitch lab????
        an would it pick up anymore top end speed compared to the 28 pro-finish prop??

        1. JR,
          The difference between a Pro Finished 28″ Pro Max and a Lab Finished Pro Max will be approximately 200 rpm. If moving up to a 30″ Lab, expect to drop 100 rpm from the Pro 28″ pitch. It could be more or less depending on the slip. Slip will increase; if it’s 2 to 3% – no issues.
          Scott

    1. Dwight,
      I wish I could report that they did. We are running four weeks behind. I now expect to ship the 27″ and 28″ pitch models at the end of May.
      Scott

  46. hey scott my ranger z21 wot 5500 rpms 67mph 26 pitch fury with a atlas jackplate would the 1xs help me and what pitch should i go with thanks

  47. Run a legend LE21 with a 225 ProXS set at 3.5 ‘ below pad with a 10 jackplate and a 24 Pitch Fury prop. With 3/4 fuel and a trounament load and me at 2150 ft. Elevation it runs 5700 rmp’s @ 70MPH with a 2 to 2.5 second holeshot.

    Lookoing for another prop…What size Pro-Max would I need and what could I expect from it for performance?

    Thanks,

    Fred

    1. Fred,
      The Fury’s run tall in pitch so plan on a 25″ pitch Pro Max to achieve similar rpm. Your set up has a very low propeller slip percentage which means you’re reaching peak performance. The only way you could enhance performance is if you could increase your rpm while staying hooked up. The Pro Max is designed to run higher than the Fury so if you could increase engine height without affecting water pressure you may gain 1 – 2 mph. For maximum performance, you will want to raise your engine height 1/2″ to 3/4″ when switching from the Fury to the 4 blade Pro Max.
      Scott

  48. I have a ranger 620 with a 250 etec I have a new slp gear case. I tried out a bravo 1xs 24p 64.9 gps 6100/6200 rpms. 2 guys 1/2 tank of gas and the live wells 1/2 full. I am going to try out a 25p bravo 1 xs. to see if i can get the rpms down. Have you tried out the pro max on these yet ? Should i stay with the bravo or run a pro max? and what pitch pro max would work.

    1. Dan,
      The 25″ pitch Bravo I XS will probably be the choice of prop for your rig. Expect to drop 150 rpm from the 24″ pitch. The Pro Max may surprise us but I’m thinking it will work better on bass and flats rigs where the Bravo I XS will carry the 620 better. Hey, you never know until you try it…
      Scott

    1. Randy,
      The Bravo I XS will help carry a full tournament load better than the Fury. I’d recommend the 27″ pitch BI XS which will give you a great hole shot and offer a little more rpm (probably 150) at the top. You would typically move up 2″ of pitch to equal the same rpm as the Fury. With most other props it’s just 1″, but the Fury is tall in pitch. The BI XS likes to run higher than the Fury, so consider bumping up your jack plate 1/4″ at a time until you find the sweet spot (make sure you have good water pressure).
      Scott

  49. Scott,

    Since the Pro Max is made of X7 alloy. What’s the weight comparison, apples vs. apples, 28p vs. 28p SS?

    1. Lee,
      We are running behind with the Pro Max. The 27″ & 28″ will ship end of May. For the 25″ & 26″ models, were looking at a June 24 ship date.
      Scott

  50. I have a Checkmate Pulsuare 21 BR with 250XS torque master 12″ set back. currently running stock 26 Trophy plus 78 MPH @ 5800-5900RPM. Would this prop be a good pick for my boat. I was thinking of getting my Trophy worked to add more cupp since this boat needs all the bow lift it can get. If i did go with the Promax would it be pitch for pitch?

    1. Kevin,
      Your current set up is running good. If you add cup to the Trophy, expect to drop some rpm which could drop your speed by 1 to 2 mph. If your interested in the Pro Max, go with the 26″ pitch. Run the engine at the current height to get a bench mark. To find the sweet spot, you might consider raising the engine in .25″ increments; not to exceed .75″. Be sure you have good water pressure and boat control. The 26″ Pro Max has a ton of cup which will enhance bow lift.
      Scott

        1. Kevin,
          Sorry. We are running behind schedule. The 26″ pitch is now scheduled for a mid June release.
          Scott

    1. Phillip,
      The Lab Finished is typically used for racing or flat out top speed with a light load. Comparing the Lab to the Pro Finish, the Lab’s leading edge is much sharper, blades are thinner and the cup height is lower. All of this work results with an increase in engine speed by 300 rpm. The gain in rpm can offer 2.5 to 3 mph with the right set up.
      Scott

  51. I have a Gambler 209 with a 250 Sport XS and a torquemaster. I’m turning a 26 Fury at 6000 RPM, 79-80 MPH. Is the ProMax pitch for pitch or would you recommend a 27 Promax?

  52. Scott

    Please offer your opinion on size prop for a Bullet 21SS with 300XS, 12″ setback. I have ordered a 30P lab finish, when will this wheel be released?

    1. Mark,
      Without getting into the details, it does make sense for you to run the Lab 30″ pitch. We had hoped to have the Pro Max available by now – but you’ll have to wait a few more weeks. Your dealer can place the order. We’ll ship near June 14.
      Scott

  53. Hey Scott I got a 21 lake and bay with a 250xs running a 26 pitch tempest plus. I’m topping out 65 mph on 6300 rpms do u think I should go on a bigger pitch or a diffrent prop

    1. Alex,
      Let’s look at your prop slip percentage to get an idea of how well the current prop is hooking up. You have a 26″ pitch prop, 1.75 gear ratio, spinning 6300 rpm and hitting 65 mph. The prop slip turns out to be 26.7%, which is really high. Normal slip is in the 10 – 12% range. The Boca Grande 21′ is capable of reaching speeds in the high 70s. Let’s try to understand what is causing your high slip number. Has the prop ever been repaired or reworked? We know the 1.75 gear ratio is constant. Is your tach accurate? Are your speeds recorded via GPS? Let me know.
      Thanks!
      Scott

      1. Well the prop could have been worked on, I got it on eBay. I opened the plugs can that change top end? And my speed was on GPS.

        1. Alex,
          It sounds like the prop is the issue. It may have been damaged and repaired some time in the past. Once damaged, a prop is never the same. It may look good, but often the the rpm goes up and the speed/performance goes down. I think you should be in the hunt for a new prop. If interested in 3 blades, A 25″ pitch Fury or 26″ pitch Tempest would work for your rig. If you opt for 4-blades, the 25″ pitch Pro Max or 27″ pitch Bravo I XS would be worth a try.
          Scott

  54. hi i got a 21 lake and bay with a 250xs and runing a 26p tempest plus. im running 65 at 6300 rpms. should i go with a biger prop or is there something wrong with the one i have

  55. i have 2013 Bullet 21SS with a 2012 Mercury 250 Pro XS, It came w/ 28 Bravo.
    i just ordered a Pro Max 30, is that to much of a change?
    Should I have gone with the Pro Max 29?

    1. Ricky,
      It’s probably going to be too much prop. It will depend on which style Bravo I you are running. If it’s the Bravo I XS, these props are light in pitch. If you’re trying to achieve the same rpm with the Pro Max, your more than likely are going to need the 27″ pitch, not the 29″ or 30″.
      Scott

  56. I just bought a used Triton TR-21 with a 225 hp promax. It has a custom reworked 4 blade prop on it from Spinelli Brothers out of Rochester, NY. With full gear and 2 guys, this boat literally takes 15-20 seconds to plane out. All of the numbers are gone off this prop so i haveno idea what pitch it is or was before it got reworked. I want to switch props, so what do you recommend to be the best all around prop for this set-up? thanks!

    1. Ryan,
      Ideally, we want to narrow down the pitch first. Do you have a friend who has a 24″ or 25″ pitch Mercury propeller you can try to get a bench mark for rpm and mph? Once you have a bench mark, we can figure out which pitch you’ll want to end up with. Next is picking out the style of prop, 3 or 4 blade. The 3-blade Tempest or Fury are typically faster compared to a 4-blade, but many prefer the handling of a 4-blade versus the 3-blade. The new Pro Max 4-blade would be a good choice for your hull and engine. First get a bench mark and let us know.
      Scott

  57. I’m currently running a 25p fury with the pvs plugs removed on my lake and bay boca grande kevlar pocket hull. I love the performance when I have a light load, but when I add another person and a full live well the boat takes awhile to plane off. I was wondering if the 25p pro max will have a better holeshot than the fury with a load on my setup? Will the pro max be able to keep pace with the fury as far as midrange and top end?

    1. Lee,
      I wish I could answer your question. I have not compared the Pro Max to the Fury under a heavy load. The Pro Max, with its extreme blade cup at maximum diameter, is fast and carries loads extremely well. What RPM are you achieving at WOT with the 25” pitch Fury when you add the extra person and gear?
      Scott

        1. Lee,
          Your rpm is decent. It’s too close to call between the Fury and the Pro Max. The Fury is such a great prop for light loads. The only drawback is the Fury’s performance suffers as you add weight to your boat. It will come down to testing engine heights. Fury’s run deep, Pro Max can run high.
          Scott

  58. I am running a Majek extreme 2200 with a 250 pro xs / gen 2 torque master lower unit. I can get 70 mph out of a 26p bravo 1 xs @ 6000 rpms with awesome holeshot but after a few days of running around in some skinny marsh I lose 5-6 mph. I was told that running the bravo 1 xs in mud was wearing the cupping off the prop. It was suggested that I go with a 27p bravo 1 xs because it was actually the same size as a 26, only it has more cup. I’m getting 70 out of the 27 but my rpm’s are around 5850 @ WOT & my hole shot isn’t all that great compared to the 26.

    I was told that the Pro Max was going to be a much better option for running in skinny water & from what I’m reading here it looks like I should order a 25p Pro Max to achieve the same RPM’s as the 26p Bravo 1 XS. Correct? Thanks in advance…

    1. Jared,
      Yes, the 25″ Pro Max should be your pitch. We’re looking forward to getting the Pro Max in the waters by you.
      Scott

  59. What do you suggest for a 1999 triton TR21 with a 2010 250 Proxs with a 8in Bobs Hydraulic Jack Plate? I’m thinking 26 pitch… Question is lab finish or pro finish? When will the 26 pitches ship?

    1. Phillip,
      If you are looking for durability, go with the Pro Finished. The 26” pitch should ship toward the end of June.
      Scott

  60. Scott,

    I’m running a 300xs on my 21xdc 14″ setback hyd plate @ +/- 2300# can you recomend a good pitch starting point for my order.

    1. Santo,
      If you’re running a 1.75 gear ratio, you probably will want the 28″. If your running a 1.62:1 ratio, then go with the 26″ pitch. If you really load the boat up, consider stepping down 1″ of pitch.
      Scott

  61. Good afternoon. My boat is 22.5 feet, with a Mercury 250 ProXS. I currently run a 26″ pitch Pro ET on a 1.75:1 Fleet Master gearcase. I turn 5950 RPM at 79.8 MPH. I turn 5400 RPM at 78.4 MPH with a 1.62 Master Fleet Master gearcase. I’d like to know if you would recommend the Pro Max and whether it would be advisable to mount the 28″ pitch model on my boat.

    1. Jose,
      If you are running the Pro Finished version 26″ pitch Pro E.T. on your 1.75 gearcase; you might be able to turn the 28″ Lab Finished Pro Max. I’m thinking your engine rpm will drop approximately to 5800. It is not advisable for you to run the 28″ pitch Pro Max on the 1.62 gearcase. Your engine operating rpm will drop below the recommended range which is 5500 to 6000.
      Scott

  62. i have a 20ftcc bullet with a 300xs with 1.62 gears what size pitch do you recommend if i ran a pro max !! i am running a 32 pro et pro finish but is way to much !! only turning 5400 with 3 people

    1. Wilber,
      The Pro Max and Pro ET will run very close – pitch for pitch. We’d like to see you engine rpm rise to 5700 with the full load. You can get there with the 30″ pitch Pro Finished Pro Max.
      Scott

  63. I have a 2011 Legend Alpha211 running a 250proXS. I feel I’m getting pretty good numbers but my boat seems to run really flat. I’m getting 71mph at 5800rpms running 3.5″ below pad. Would a 26″ pro max give me a lot more lift than my 25″ fury. In turn giving me better cruising speeds and better top end.

    1. Jansen,
      You are getting good numbers. I’ve heard from other Legend owners who are also looking for added lift. Legend has the 26″ pitch Pro Max on order. That order should fill this month. Time will tell.
      Scott

    1. Richard,
      If your engine rpm is on the high side (6250 to 6400) of the recommended 5800 – 6400 rpm range, go with the 26″ pitch. If you are currently running 6100 or less, move down to the 25″ pitch.
      Scott

    1. Brad,
      Yes. We are shipping the 27 & 28″ pitch. The 25, 26, 29, 30, 31 & 32 should be the end of June.
      Thanks,
      Scott

    1. Dwight,
      We are shipping the 27″ and 28″ this week and next week. The 25, 26, 29, 30, 31 and 32″ pitch should ship the end of June.
      Thanks,
      Scott

    1. Jeff,
      If switching from the Tempest to the Pro Max, expect to move down 1″ of pitch to the 26″. Plan on first testing the engine at the current height. Move the engine up .25″ at a time (monitor for good water pressure) until you reach the critical area where engine rpm goes up but speed starts to drop – or stays the same. At that point, move the engine back down to your last setting. At the current height, expect .5 mph gain. If you can raise the engine .5″ and gain 150 rpm, then you could reach 77 mph.
      Scott

  64. i am running 2005 trton bassboat x 21 with xs 250 5800 rpm with fury 26 at 77.5 gpd wot wich propax pitch would be the best and any improvement

    1. Claude,
      You are getting some impressive results with the Fury. At WOT, your slip is extremely low. This tells us your set-up is very efficient. I’m thinking you shouldn’t change a thing.
      Scott

        1. Claude,
          It’s awesome that you want to give it a try. Run pitch for pitch. Go with the 26″ Pro Max when switching from the 26″ Fury.
          Scott

  65. Greetings,
    I wonder if the promax get more miles on the boat, the boat has a 250 Pro XS engine propeller 28 Bravo I, alone with 1.75 gear and 5800 rpm with a speed of 83 mph

    1. Gerardo,
      Your set-up is really good with the Bravo I. It’s too hard to call if you can do any better.
      Scott

  66. Hi Scott

    How will the Pro Max turn compared to the Bravo XS. I’m turning a 22 pitch Bravo XS and it’s a great prop.I notice that it puts more of a load on the motor compared to my 3 blade and uses more oil.Will the Pro Max be easier to turn on my 18 foot flats boat and be better all around on speed and efficency? I can spin the Bravo XS 22 pitch at 5900 dependeing on fuel load and around 60 mph light!

    1. Phil,
      The Bravo I XS is light in pitch and the Pro Max is a little strong in pitch. Expect to move down 2″ of pitch when going from the Bravo I XS to the Pro Max. It would be interesting to run the Pro Max on your rig. Unfortunately, the lowest pitch is 23″. The Bravo I is a large wheel. It may be too big for your application.
      Scott

  67. Hello, I have a 2012 Legend alpha211 with a 250 pro xs… I am currently running a 26 fury. 72 mph at 5900 rpm. Curious to see if this prop would work with my boat and what pitch you recommend… Thanks

    1. Nathan,
      We are also really interested to see how it will perform. Legend will be one of the first companies to receive a 26″ pitch Pro Max. The Fury and Pro Max should be very close in pitch. If you’re running the 26” Fury, go with the 26″ Pro Max. The Fury runs deep in the water so take the time and test to find the sweet spot for engine height when running the Pro Max. We expect to be shipping the 26” pitch Pro Max the week of June 24.
      Scott

      1. Has anyone heard from legend with that 26 promax. I would really like to try one or find out what they have seen.

        1. Jansen,
          We don’t have any test data at the moment. We are continuing field evaluations with the Fury and Bravo I XS. If we hear anything, we’ll let you know.
          Scott

  68. hello
    please i use 28 tempest plus and i like to get the promax prop
    what do you suggest for me to use 26 or 27 P in promax
    thanx

    1. Khaled,
      Mercury makes a 27″ and 29″ pitch Tempest Plus and Mercury Racing made a 28″ pitch Tempest Plus. The Pro Max runs a little tall in pitch compared to the Tempest Plus. If you are running the 28″ Tempest run the 27″ pitch Pro Max.
      Scott

  69. I have a Basscat Puma FTD 2013 running a Pro XS 250 with the new wingmaster lower unit and a 26P Fury, Top end is 76 with full load and full live wells. with Live wells full Hole Shot is horrable 10 plus seconds to get on plane, live wells empty in the 1 to 2 second range. I can get up faster if my partner goes foward in the boat. RPM during hole shot is 3K and running wide open just under 6K. Is the Promaster 26P going to improve the heavy hole shot?

    1. Scott,
      Just got off the phone with another Puma owner with a set up similar to yours. 250 ProXS 1.75 gear ratio, twin power poles, 4 batteries, 2 people, full gear and 40+ gallons of fuel. He was running the 26″ Fury and had the same performance issues with the heavy loads. He. switched to the 27″ Bravo I XS (with standard 1″ vent holes). Here are the results: After raising the engine 1-1/4″ (the distance from the bottom of boat to center of prop shaft decreased from 3.5″ to 2.25″), the hole shot was awesome, mid-range fuel economy was fantastic and throttle response to WOT was incredible. Top end-speed was 75 mph at 5900 rpm. He hit 76.2 mph at 5980 rpm after dropping his partner off. It will be interesting to see if the Pro Max can top these performance numbers. It appears those who think the Bravo I XS needs additional vent holes don’t understand the relationship of engine height and prop design. If you keep the Bravo I XS buried in the water, then perhaps additional vent holes would help. It’s been our experience that you will get better performance (from hole shot to WOT) if the engine is raised to an appropriate level.
      Scott

    1. Alex,
      The Pro Max does not have PVS vent holes. I’m not sure your OptiMax will be able to get a good hole shot. Vent holes could be machined in after the fact.
      Scott

  70. Okay I see that they are shipping the pro max props now . I want to make sure we are correct in the pitch size . a 28 sounds a little big . Here are some other props i have ran on the same boat and set up 26 fury two guys and gear brand new prop great hole shot top end was at 78.5 but in to the rev limits in summer heats . my other prop im running is a mazco hp 4 it started out as a 27 again good hole shot top end was 80 with two guys but again close to rev limits in summer heats . so i had mazco bump up the pitch size to a 28 . still good hole shoot but lost 2mph on top end and now can only turn it 5900 at best in summer heat . i propablay should have left that prop as a 27 pitch .

    1. Scott,
      The Fury and Pro Max seem to be running close in rpm (engine height adjustment required). A 26″ pitch Pro Max would be too small. The 27″ would reduce your engine speed by 150 rpm when compared to the 26″. The 28″ pitch would drop 300 rpm.
      Scott

  71. Hi Scott,
    I am currently running a stock Tempest Plus 23 on my 19′ flats boat, no jack plate with a 2013 150 Pro XS. Current performance is 58mph @ 5700. The loaded weight is approx 1800- 2000lb. The hole shot is great and overall performance is very good. I can cruise @ 3500rpm 38mph and 6.8gph.

    I have tried a 24 Bravo 1 XS and it performed well, speed was 60mph @ 5500 rpm. It appears to require additional steering effort but overall performance was about the same. Lost some rpm but appears to have more speed.

    I am looking for the advantage of 4 blade handling and running more trim. Feels like the boat will reach higher speeds, get on the pad quicker, allow for more trim but I do not want to load the motor and effect gph. Not a race boat but want maxium performance.

    Would the Pro Max be a good choice? Should I focus on the Bravo 1 XS?

    1. Tony,
      Typically, the Bravo I XS runs better with a little engine height. Your results with the Bravo I XS are impressive. As long as you have the 24 Bravo I XS, consider raising the engine one hole and run it again (make sure you have adequate engine water pressure). I’m hopeful you’ll see a gain in rpm and speed with the height adjustment. The Pro Max, with its smaller diameter, might reduce steering loads. The 23” and 24″ pitch models should be in the market by the end of August. I hope to have some performance data to share with you.
      Scott

  72. I have a bass cat puma ftd 250 pro xs 26 fury turning around 6100 78.5 to 79 tournament loaded two persons all over the limiter in winter by myself which prop would be the best to use 27 pro max or fury in winter don’t want to loose performance just a few rpms. I am 3″ below pad and 8″ set back 1:75 TM.

    1. Charles,
      Yes. Moving up 1″ of pitch will offer you the best winter performance. If switching to the Pro Max, Engine height adjustment needs to be tested. The 4-blade offers better performance if you run it higher than the 3-blade.
      Scott

      1. what finish do you think lab or pro on the pro max? how high do they like to run ? do you think if I went with lab finish I could keep the prop around the same on jackplate height and not suffer

        1. Charles,
          For everyday fishing, it’s probably better to run the Pro Finished version. The Lab version is for light weight set ups looking for the ultimate top-end speed. The height depends on the boat bottom design, water pressure, prop slip and boat control. You really need to start with your current engine height as a base and then move up from there.
          Scott

  73. Gambler 2100 with 250 Pro XS, turning 27p Trophy plus 5960-6050 per merc monitor @ 80.9-81.6(condition depending)…should i stay with the 27p when i order the ProMax? only reason considering leaving the trophy is Cavitation issues during holeshot without propring and fear of slinging blade…if the promax will correct these issues and keep MPH where i’m at i’m sold!!!

    1. Adam,
      The 27″ Trophy measures as a 27.5″ pitch, so step up to the 28″ pitch Pro Max. You may see a 75 rpm drop.
      Scott

  74. 2000 896 nitro with 200 merc, currently about 4″ below pad using a laser 2 prop reworked from a 23 to a 25p.. Top end 62mph on GPS……I have a 23tempest plus, thinking of having it reworked to a 25, I would appreciate any advise, 25 fury, this new pro max… Or what, I know I can get this boat to low 70,….others have running both the fury and the tempest, with fury being the fastest, but sacrificing hole shot…..hmmmm. I need suggestions plz,…also I run with tourn. Load and 3/4 tank of fuel mostly, R p m s. are 5800…. Which is top for the 2000 model 200 carb merc. thanks,!!!

    1. John,
      Hitting 70+ might be wishful thinking. You’re getting 16% slip with your Laser II which isn’t good. The slip with your set up should be 10% or less. The 25″ pitch Fury would be comparable in rpm to a 26″ pitch Tempest. The 24″ Fury would deliver similar rpm as the 25” Tempest. If you can raise your engine height without sacrificing water pressure, the Pro Max 24″ pitch (available August 30) might be the way to go. If you cannot raise the engine, stay with the 3-blade props.
      Scott

  75. Ok, I can raise it some I’m sure,… What expected gains should I see,….as on the nitros forum, they are running same boats as mine with the props I mentioned and are getting 68 to 72(sopossedly)…. So what would be my number 1 prop , and what would be second best….the laser I’m running is a loaner as I just rep peered to the 200 carbed merc…….how High are we talking about to run the pro max… And confirm what u said about the tempest and the fury

    1. Are u meaning the 24 fury will run same rpms as the 25 tempest plus….also I have a 10″ slide master jack plate…..

      1. John,
        Yes. Tempest props are a typically a little weak in pitch. The Furys are a little strong in pitch. Move down 1” in pitch when switching from the Tempest to the Fury. The engine operating rpm with the Fury should be the same as that achieved with the higher pitched Tempest Plus.
        Scott

    2. John,
      In your case, I would pick the 24″ pitch Tempest as my all around best prop and not worry about any of the others. Regarding an appropriate engine height, you will have to do your homework and do performance tests at various heights. Make sure you have appropriate water pressure, prop hook up and boat control.
      Scott

      1. Dang, I ordered a 25 pitch tempest , I found a deal and didn’t know when u would respond, will this be ok,…and how do I calculate my slippage percentage for my set up,…really appreciate your help Scott, thanks,,!

        1. Hi John:

          Scott is out of the office. He will respond to your message upon his return later this week.

  76. 2012 Nitro Z7 with a 150 pro xs with a 10” jackplate.Im running a 24 pitch tempest plus at 3” below the pad and it will get 62.2 gps at 5450 rpm in 80 degree air temp and 75 water temp but its a handull to drive keeping the chinewalk from accuring.In colder air and water temps i have hit 64.3 with the jackplate raised up about 1/4 in more and still had good water pressure.Do you think a 23 or 24 pitch promax would alittle better handling and still get the same speeds im getting with the tempest plus or might it be better to just have the tempest reworked alittle

    1. Michael,
      The 24″ pitch is one of the best Tempest props Mercury makes. The Pro Max will help boat control at WOT. If you can raise the motor without sacrificing water pressure, the Pro Max may be your prop. If you didn’t move your engine height, the 23″ pitch would work but you wouldn’t see any change in top end speed. However, if you can raise the engine by 1/2″ or more, you’ll see an rpm gain. With the engine height adjustment, you should be able to gain enough rpm to swing the 24″ pitch. This would result with greater top-end speeds.
      Scott

  77. Are you getting anymore reports of blowout at take off. My 27″ revs up to 5000 rpms trying to get out of the hole. I’ve got a cav ring ordered and hope that stops most of it. Never had that problem with a trophy and never ran a ring.

    1. Dwight,
      To help us better understand the blow out issue, please supply information regarding your boat; (style, make and model); engine size and style of gearcase. Please also provide the pitch size of your Trophy and any information you can share regarding its condition (stock, reworked, etc.). Performance numbers of both props at wide open throttle (rpm and gps speed) would be helpful as well. Is the boat load light or heavy?

      In our testing, boats either come on plane by easing the throttle or putting your foot into it, allowing the engine to cavitate for a few seconds prior to hooking up and rocketing on plane. Some customers have found success using a modified blow out rings. They restrict the amount of exhaust flowing over the blades while coming on plane. Let us know what you find out with the solid ring.
      Scott

      1. Scott I run a 2004 TR21 triton with a 225 2005 efi regular gear case 1.75 gears with the 27″ trophy no ring all PVS holes plugged I could get on plane with water in wells 1 person in the boat with 40 gal. of fuel with out blowing out. Best top speed was 78.7 mph at 5800 rpms. With the 27″ Pro Max started out with 40 gal. of fuel just me in the boat no water in well prop at 2.5″ under pad motor blew out couldn’t get on plane and turned up to 5000 rpms. Stopped put water in one well lowered plate 1/2″ still blew out dropped it again 1/2″ and struggled but got on plane. After stopping to fish I put water in the other well lowered motor more down to 4″ under still could get on plane and still blew out turning 5000 rpms. The prop would start pushing the boat and then break loose and rev up to 5000. Tried easing up but it would hold. Pro Max has all kinds of bow lift and speed in cooler weather will probably exceed trophy’s best. I got 77mph at 5600 rpms

        1. Hello Dwight:
          Scott is out of the office. he will respond to your message upon his return later this week.
          Rick

        2. Dwight,
          Blow out can be experienced with both odd and even pitch props in various applications. It all depends on setup; weight distribution, style of engine, set back, etc. For example, a pre-2013 250 Pro XS mounted on a Bullet 21XDII with 3/4 fuel, full live well, gear and two people can blow out with the Pro Max while planing. The Pro Max hooks up fine on the same hull when mounted to the 2013 or newer 250 Pro XS models with the generation II Torque Master gearcase. The 21XDII runs better with the Bravo I XS while the 21XD is happiest with the Pro Max.

          We are experimenting with reducing the amount of exhaust blown out around the barrel of the Pro Max while planing. We’ll keep you posted on the results. The Pro Max is a tad more efficient than the Trophy; producing 6% of slip compared to the Trophy’s 7% slip. So, how do we get your rpm closer to 5800 while running the Pro Max? Should a 26” pitch be considered; you should see a gain in your engine rpm with an engine height adjustment. The Pro Max will offer similar top speed to the Trophy with improved durability.
          Scott

  78. Right now im in a 1999 triton TR21 with a 2010 250 Proxs with a 8in Bobs Hydraulic Jack Plate Running a modified 26 Trophy Plus. Right now I can run this prop to the limiter when I raise it up to get max speed. Im running the same 26 Trophy I told you about before. I guess im fixing to buy one just waiting on the 26 pitch to become available. Also several are saying I can probably run the 27 pitch. I honestly dont have the extra cash sitting around to buy both and test them. My question is will I lose rpm’s with the promax? Since it a larger diameter would it be able to be risen higher on the hydro plate? How will this effect my holeshot? When will the 26 be available?

    1. Phillip,
      You will drop a little rpm when moving from a stock 26” Trophy to the 26″ Pro Max. The exact change in rpm depends on the set up. If you can, adjust the engine height. You will have to do your homework to figure out the appropriate height. Be sure to monitor your water pressure. Make sure the prop stays hooked up and slip is kept low at wide open throttle.

      It’s hard to tell if there will be an rpm difference between the worked Trophy and the Pro Max. If I were to guess, I’d say stay with the 26″ pitch. We are sold out of the first batch. the second batch should be shipping but the end of July.
      Scott

  79. I’ve got a Ranger z521 with a 250 pro xs. Currently I run a 24 Fury 67mph@5900RPM. I’m happy with the top end and mid range performance, with a full tournament load the hole shot is a little slow. My bigger concern is ruff water. I run a lot on the Great Lakes. The only prop that stays stuck well in real ruff water is a High Five. I’m looking a little more bow lift than the High Five and trading some performance for hook up. What do you think about the 25 pro max or Bravo???

    1. David,
      I’m going to lean toward the Bravo I XS because I’ve run Erie and the Bay of Green Bay with it. I have not had the chance to run the Pro Max in big, rough water. The Fury is tall in pitch. The Bravo is light in pitch, so step up to a 26″ Bravo I XS to achieve the same rpm as the Fury. Hopefully you have a hydraulic jack plate to obtain maximum performance out of the Bravo I XS. Compared to the Fury, the Bravo likes to run higher for both hole shots and top speed. The Fury should be the fastest under a light load. Nothing compares to the XS when it comes to running heavy loads in big, rough water. When raising your engine height, start out 1/4″ at a time. You may be up 1” or higher before finding the sweet spot. You will need to do your homework to figure that out. Remember to be monitor your water pressure, engine rpm and prop slip throughout the testing process.
      Scott

  80. I have a Gambler Intimidator running a Mercury 200 Optimax. I run a 25 Tempest (old with small vent holes) and it’s great on top end, but with the livewells full and two men, it can not get up on plane without some running to the front on the boat. Once up, it runs fine, 5900 RPM, 70 mph. Will a ProMax help my hole shot or would a Bravo better.

    1. Hi Danny:

      Scott is out of the office. He will respond to your message upon his return later this week.

        1. Danny,
          When comparing the Pro Max to Fury (pitch for pitch) go with the 26″ pitch. Keep in mind, you’ll need to adjust your engine height with the 4-blade.
          Scott

    1. Hi Claude. Scott is out of the office. Part numbers for 26″ pitch Pro max props are as follows:

      Pro Finish: 8M0079701
      Lab Finish: 8M0079693

      I’ve included a link to the Pro Max sell sheet for a full listing of available pitch sizes for both Pro and Lab finished models.

  81. 2005 triton tx21 bassboat 8 inches jack plate motor set in 3 holes 250 xs 2005 i want to spine the engine around 5800 or 5900 which pitch do you recomande with the promax

    1. Claude,
      The 26″ pitch Pro Max should produce a higher rpm over the 26″ pitch Fury after your optimum engine height is set.
      Scott

  82. Hi, I have a 2013 nitro z7 with 150 pro xs. Will the pro max prop a good choice and I am running a tempest plus 24 pitch turning 5500 rpm, what pitch should I use with the Pro Max ?

    Thanks!

    1. Vincent,
      The 24″ pitch Tempest is one of the best we make. I think I would stay with it. If you provide me your speed at 5500 rpm, I can give you a better idea.
      Scott

  83. Thanks Scott…and original question from a couple weeks back is I have a Gambler Intimidator running a Mercury 200 Optimax. I run a 25 Tempest (old with small vent holes) and it’s great on top end, but with the livewells full and two men, it can not get up on plane without some running to the front on the boat. Once up, it runs fine, 5900 RPM, 70 mph. Will a ProMax help my hole shot or would a Bravo better….and what pitch Bravo?

    1. Danny,
      If you want a work horse, go with the 26” Bravo I XS. It likes to run higher than a 3 blade while providing better hole shot and enhanced top-end speeds. Hopefully you have a jack plate which enables you to test various engine heights for dialing maximum performance. Start with your normal base height and raise the engine in .25″ at a time until you find the sweat spot. Make sure you have adequate water pressure during testing. The Pro Max runs a little stiff. You will want to step down to a 24″ pitch to get similar rpm as the Tempest. The 24’s are currently not available (hopefully August 30). The Pro Max also likes to run higher than the 3 blade. Back to the Bravo I XS. It doesn’t care how much weight you toss into the boat. There is no better prop for heavy loads.
      Scott

    1. Capt. Adam,
      Thanks for asking, it’s been tough keeping up with all the orders. To date all 28″ to 32″ pitch orders have been filled.
      Scott

  84. Hey Scott, I have a 2012 triton xp 21ft with a 250 pro xs 3 blade Fury prop with 25 pitch jack plat 8 inch set from factor with me and my partner out of hole bout 2 1/2 seconds out of the hole speed 65 to 66 mph. Would and what would the new 4 blade Pro Max do for me?

    1. Ken,
      To help answer your question, send me your engine rpm at 65 – 66 mph. At this point it’s too early for me to tell how and if the Pro Max fits into your Triton set up. The Pro Max was geared toward the Alison and Bullet boats but when we design a prop you never know where it’s going to end up. For reference with your style of boat; the Fury is typically the fastest in a light to medium load, the Tempest is next used with medium load and the Bravo I XS typically is used with medium to heavy loads.
      Scott

  85. Hey Scott, refer to post 96-97….update with my 896 Nitro..I tried a 25 tempest plus, small vent holes,…I still only got up,to 62.5..25 gallons of fuel, 2 people….I turned the prop 6,000 rpms,,,which I think is a little much the the 2000yr 200 carb merc……seems i still have a lot of slip, how do I calculate that, and where do u recommend I go from here….I should be at least 65. Others get 68 plus. If they are being honest…. Thanks for your time!

    1. John,
      To check your propeller slip, go to the Mercury Racing’s slip calculator located in our propeller section. Placing your numbers into the slip calculator: 25 pitch, 1.87 gear ratio, 6000 rpm, speed at 62.5, clicking the calculate slip, it comes in at 18%. The slip is very high; it should be down around 9 to 12% for your boat. Things to look at: has the Tempest been repaired or are the cups worn down, did you trim out excessively, or is the engine to high. It’s a good idea to have a fresh prop when testing providing you the best performance data. The two props that will offer the greatest performance is the Tempest Plus (probably a new 25″ for medium weight loads) or the Fury in 24″ pitch for light loads. The Fury’s run 1″ pitch taller than the Tempest.
      Scott

  86. Are the 26’s shipping yet? I purchased one from Jaco’s and it still hasn’t shipped, kind of wondering if I’m going to get it prior to heading up to the San Juan’s early next month.

    1. Kevin,
      Sorry it’s been challenging keeping up with all the orders; we should start shipping the 26 pitch August 16.
      Scott

      1. That sucks with the short summers up here hope it ships before that. I guess I’ll have to wait till next year to figure out if this prop was a good purchase or not

  87. I have a 21’10” Bullet with Mercury 300XS. I ran my 28xob Hydromotve Prop custom build prop for this boat vs. my new 28 Mercury Pro Max pro finish prop. Sport master 1.62 gears. Pro max was 5900 @ 88 GPS, Hydro 5880 @ 88.3. Both props had 2.5 sec. holeshot and rpm revved up to 5000 during holeshot. The Pro Max acceleration was great and midrange would set you back in the seat. The Hydro was weak. The Pro Max carried the hull very clean from stern to bow. This test was done 90 degree with high hum. Boat was full tournament load with 2 people at 240 and 210 lb. plus 1/2 tank of gas. I have run over 40 props on this boat and by far this has been the best prop to date. This prop has thick blades compared to some of the other props I have run. This test was done with both props going up ¼” a time from ½” below to ¾” above pad. The Pro Max was really gaining speed were as the Hydro had reached its limit the Pro Max would run higher yet with more speed to gain we just ran out of time for further testing. For this setup Mercury knocked it out of the park, Thanks Scott and Mercury.

  88. Scott,

    Currently running a 24 Bravo XS on a 20 Backwater and 225 Pro XS setup.

    When will the 23 pitch Pro Max props be ready to ship? Thanks for all your help in the past, and now.

    -TBR

  89. Have a 2011 Z520 and 250xs with a 25 Fury. 71 mph @ 5650 rpm in warm water 3″ below pad tournament load. Would like better hole shot with faster top end if possible. Would Pro Max or Bravo XS work better than the Fury and if so, what pitch?

    Thanks.

    1. Greg,
      Typically, the Fury with your Z520 will be the fastest prop with light loads. The Tempest will be best for medium loads. The Bravo I XS is your prop for heavy loads. I’m not sure what to expect when it comes to running the Pro Max on your hull. All of our testing was done on light weight hulls such as SCB, Alison and Bullets. Your 5650 rpm and speed of 71 mph reveals a 7% slip which is extremely good. Engine height is also good. A 24″ pitch Fury would help your planing performance. The engine speed would increase by 150 rpm, bringing your motor up to near peak torque at 5800 rpm. Hopefully, the speed will stay the same; it could drop to 70 mph. The good thing is Mercury and Mercury Racing offer several propellers for many applications. I just wish we had that magic prop that would offer what you are looking. Enjoy.
      Scott

    1. Phillip,
      I’ve only experienced the exhaust ring affecting planing performance, not top speed, with the 250 ProXS. The Pro Max fitted on the Torque Master II or Sport Master may produce too much venting. We are looking into vent control for the Pro Max. We hope to have it resolved in the next couple months.
      Scott

        1. Phillip,
          Installing PVS will increase the venting even more. The new gearcase creates additional venting. Restricting the exhaust flow should benefit planing.
          Scott

  90. Scott, I have the new Bullet 21 xrs with a 2013 Mercury 250 Pro XS. 14″ Setback I am just out of break in. I am running a 27 pro max at 1″ BELOW. The hole shot starts good but spins & blowouts at tip over to the point I have to let off to hook the prop back up.) I love the mid range on the prop and but I am also experiencing blowout at anywhere from 75.5 to 80. The motor has more, I just don’t have the balls to push it any further.

    1. Matt,
      Thanks for bringing this up. The new gearcase is creating a challenge re: prop/gearcase combinations. All bets are off comparing old vs. new set ups. Odd pitch Pro Max models are made from even pitch castings with less cup. Similar to the Bravo I XS and FS family, the Pro Max is available 1″ pitch increments. Some applications are very sensitive to the cup height. I’m wondering if a 26″ or 28″ Pro Max might be better because of the added cup. The cup isn’t pounded in, it’s already there. We grind the cup height according to the pitch. The Torque Master II gearcase lends itself to ventilating during roll over. To help minimize ventilation, Mercury is making Ventilating Control Rings (VCR) for use on the front of the Pro Max prop hub. The Bravo I FS is also getting modifications for use on the new case. As of August 19, FS props will be equipped with the PVS system. Solid fittings will be pressed into the Bravo I FS vent holes. A packet of large vent fittings will also be included in the prop box. Solid fittings are designed for use with four stroke applications. The large fittings can be installed when used with the Torque Master II gearcase.
      Scott

  91. I have a bass cat pantera 2 19′ with a opti 200. Currently running a 26 trophy at 3-3/4″ below pad turning 5340rpm HEAVY TO 69mph. I am 180# and my partner is 325# full of gear and wells full. Looking to see if the promax has anything to offer while not hurting performance when I fish solo and/or with a 180# partner

    1. Craig,
      Great question. The Trophy is a great prop in the right application. Unfortunately, it’s too early to tell how the Pro Max is going to work for your set up. I do know Bass Cat has ordered some Pro Max props. No news, thus far, on the outcome.
      Scott

      1. Will the pro finish version exhibit more lift than the lab finish version? How will a 26Pmeeting pro finish compare to a 26p trophy+ from a pitch standpoint? Concerned with my ability. To turn a 26p.

        1. Craig,
          Pitch for pitch, the Pro Finish has more trailing edge cup and should offer more bow lift than the Lab Finished version. In some cases, the 26″ Pro Max lowers the RPM over the similar pitch Trophy. Some of that has to do with the condition of the Trophy and engine height.
          Scott

  92. Hello Scott Reichow, I have a Z8, with 250hp engine pro xs with Jack plate 8 Atlas “, propeller fury 27” maximum RPM: 5900 max speed: 75 MPH Which propeller indicate me? How much does it cost? Where I can buy? Thank you!

    1. Cristian,
      The Z8 with a light load in the front will probably run best with the Fury. It’s too early to tell how the Pro Max will work on the Z8. If you load the front up with 400 lbs. of gear, consider the Bravo I XS when used on 2012 and older 250 Pro XS outboards fitted with with the Verado or Torque Master gearcase. The 2013 Pro XS, featuring the new Torque Master II gearcase, should consider the Bravo I FS with PVS. The new system allows you to dial-in the amount of venting while bringing the boat on plane (also know as roll over).

      The Fury’s run tall in pitch while the Bravo I XS and FS run light in pitch. If you’re interested in keeping the same rpm as your Fury, move up to a 29″ pitch Bravo I XS or FS. Please see an authorized Mercury dealer to purchase any Mercury or Mercury Racing propeller.
      Scott

  93. Hi Scott,
    I’ve been running the Pro MAX 26 pro for a while now on a tr-22 with 300x PRO MAX. I can’t get the prop to hook up properly at dead stop but acceleration and top end is incredible…I’m certain everyone will experience the same issue since I played a lot with motor height. What could be done to reduce slippage at start up?
    Thanks
    Eric

    1. Hi Moe,
      Mercury is working on Control Vent Rings that will slip over the front of the propeller. We should have some available in a couple of weeks.
      Scott

        1. Hi Moe,
          We are still testing the rings on various applications. There is some promise with the 250 ProXS with standard Torque Master. The rings didn’t help the Verado Pro engines. They ran best without.
          Scott

  94. I posted this above and it disappeared.

    I’m running a 99 Triton TR21PD with a 2010 Merc Proxs 250 with Gen 1 TorqueMaster Gearcase
    1:75…. Bobs Hydro Jackplate.
    I ran the ProMax with a Cav Ring 1st. The hole shot was nonexistent due to it not venting at all. The acceleration and midrange was really nice. It ran 2 mph slower (77.5) on top then my Trophy Plus Which was 79.5 mph with a tourney loaded boat with only driver and 1/2 tank of gas. Hot part of the day 90 Degrees. It ran higher then the Trophy Plus and handled much better. I really like the handling. About 6000 RPM’s

    I then removed the cav ring and ran the boat again…. Major blowout n holeshot and the same numbers on top.

    This prop appears IMHO to be like a stud all pro running back that just needs some tweaking. I’m thinking about adding PVS venting holes. I really think adding a cav ring and having venting from the open PVS holes may be the perfect combination. Scott thoughts as to if you think this would work??? Should I try the Bravo 1 ? If so what should I expect on my boat?

    1. Phillip,
      Thanks for the feedback. We are in the process of producing Ventilation Control Rings to slip over the prop. The rings will curb what you are experiencing. If you can hold off on the PVS installation, the ring will be cheaper and should accomplish the same results. The Pro Max is 14.50″ in diameter. It has a tremendous amount of cup at the tips. By raising the engine height (make sure you have adequate water pressure), you should see a big difference in performance when compared to the smaller 13.75″ diameter Trophy.
      Scott

  95. Scott,

    I’m running a 30″ Promax on my 21XDC/300XS 14″ setback with atlas hyd. Prop seems to bog down during initial hole shot then hookup mid way @ about 5k rev to plane over. Would PVT holes help this and not cause a over rev at break over? I haven’t had a chance to top out my performance numbers just yet I’m just out of break in. So I won’t know if I really need to drop down a few inches of pitch or if that might be the ticket all together.

    Thanks
    Capt. Santo

    1. Capt.
      For some applications, the high pitch Pro Max would benefit with PVS. Mercury Racing offers PVS machining installation for $69 plus tax and shipping. Let me know if you’re interested.
      Scott

  96. Hey I have a 2002 22′ shearwater with a 01 225 efi and a 8″ haudralic jack plate. Hull and motor weigh app 2200 lbs. I am currently running a tempest 23p with 3 vents open with 5800 rpm @ 56 mph. I have a little bit of cavitation around 3500 rpms in my hole shot but good top end. I am looking at getting a 4 blade, probably a bravo 1. I care more about my hole shot, cruise speed and fuel efficiency than my top speed. What suggestions would y’all have for a four blade prop and pitch? Thanks – justen

    1. Justin,
      The 4 blade Bravo I XS is a great prop for getting on plane quickly – with plenty of mid-range punch and, in most cases, improved fuel economy. The design enables you to move up 1″ of pitch. You could swing a 24″ pitch XS at similar rpm as your 23″ Tempest. I reviewed your data (23″ pitch Tempest at 5800 RPM, 56 mph, 1.75:1 gear ratio) and your propeller slip is high (22%). For your boat, it should be down around 10 to 12%. Your high slip number could be from a variety of factors; prop damage, worn trailing edge, worn down cup heights, or excessive engine height.
      Scott

  97. I have tried a few props on my bullet 21xd,250 xs with tm and 1.62 gears. My favorite for top speed is a 28pro et but it had a bad holeshot. After readinng alot of people testing the promax on various web sights, some like it and some don’t. I wonder if it has something to do with the gears in the lower unit, it seems the ones with 1.62 gears are having better holeshot than the 1.75 gears, but there still are ventilation problems planing out. Could the 1.62 gears need more venting than the 1.75 gears. it seems so in the props that I try.Anyway do you think a 28 promax would work on my boat?

    1. Hi Randy,
      Good question about the gears. Running a 1.75 ratio in a similar case with a 1.62; the 1.75 would run 2″ of more pitch. Some of the applications are venting too much during planing. We are currently testing ventilation control rings with a few Mercury dealers. We hope to have a report shortly. Pro Max blades are the same blade as the Pro ET. The 28″ Pro Max would be the right pitch.
      Scott

  98. Hello, I have a 2000 Bullet 20xd with Mercury 225 Pro Max with sportmaster lower, 16″ total setback, turning a 26 Trophy at 6400 rpms, 80 mph 2 guys tournament load.. I carry alot of stuff! I can raise my hydraulic jackplate and get more rpms, but it gets slower instead of faster. 25 tempest runs the same speed @ 7000 rpms but holeshot is terrible. Was wondering how a 26 pro max would perform? Was thinking maybe the larger diameter would let me raise the motor higher without slipping, thus more rpms=more speed. I have literally tried TONS of props on this boat, and the trophy has been the best balance between holeshot, acceleration, and top end speed with this load. Thanks & Thoughts?

    1. Hi Jr,
      Thanks for the information on your rig. I’m not sure how the Pro Max will run with your Pro Max Sport Master set up. The question comes with the venting; the Pro Max only vents over the small barrel (size of a Trophy). In some cases, it offers too much venting. We are testing with vent control rings with a few Mercury dealers. Results to follow. The Pro Max will hook up more at the increased engine height which should result with increased speeds. For now, maybe the Trophy is still your best prop.
      Scott

  99. Hi,

    I am running a 2011 Allison XR-2001 River Racer set-up., with a 2013 XS200 ROS. Currently running a 28″ 3 blade (can’t remember the brand, it’s not marked). Top speed is 97 @ 6600 rpm. Boat is very light and I’m 165lbs, aways alone. How do you think the new prop would work for me. Before I started raising the motor it was topping at 91. I raised each week about a 1/4″ until I hit 97, the last two raises didn’t change the performance. Hope that is enough info. It has been sugest to go up an inch or 2 in pitch.

    Mark

    1. Mark,
      You might be running a 3-blade Lightning E.T., which you may want to stick with. The Pro Max would be interesting, I just do not know how it would perform. The Pro Max exhaust barrel may help in high speed turns experienced in river running. I’m not sure if it would provide too much stern lift.
      Scott

  100. Hello Scott,

    I have a question about this prop on a 98 19.8 Nitro Savage with a 2013 200proxs. with a 6″ atlas. It currently has a 25p fury and will run 68mph at 5400 rpm. The boat seems really light in the bow since the gas tank is mounted all the way to the stern. We run a lot of weight in tackle up front but it still likes to come out of the water when it hits waves but runs nice in calm to little chop. Will this prop raise the stern to compensate for the bow lift the boat already seems to have?

    Garrett-

    1. Garrett,
      Good question. Unfortunately, I’m not sure I can answer it. In some cases, the Pro Max has a hard time spinning up to bring the boat on plane when there is a tremendous amount of weight in the back. Depending on your location, there is a Mercury dealer in Harriman, TN that has a prop testing program. Check it out.
      Scott

  101. Just an update for everyone. I’m loving my 28 pro max on my Stroker and 300x combo!!! Awesome holeshot,blistering midrange, and runs strong on top! I have a cut tuner on my x which gives it the perfect amount of ventilation. Best handling prop I have ever run!

  102. I have a Bullet 20XD with a 225X torquemaster tooter coned lower. I think I’m running 1.75 gears. Would a 28p Promax be too much prop?

    1. Ray,
      A 28P might be too steep. It all depends on where you need to be for RPM with your motor. What pitch are you running today?
      Scott

    1. C,
      Two things changed. We pulled the PVS because the lower pitch props didn’t need it. Exhaust flow over the small barrel tube produced enough venting to carry the boat on plane. The thought was PVS plugs could be machined in for 30” and 32” pitch props. The other change was adding a little more thickness for durability – you can always thin them down, if needed.
      Scott

  103. Hello, I recently broke a ear on my 27 Trophy Plus and I’m thinking about trying a Pro Max. I have a 1995 20xd Bullet with a stock 2001 Mercury 225 EFI with the exception of a nose cone on the lu. In the summertime I turn the 27 Trophy to 5800 rpm at 80 mph with light load, in cooler weather I sometimes bump the limiter at 5850. Would the Promax be a good prop for my setup and if so should I stay with a 27 pitch or bump up to a 28? Thanks in advance.

    1. Brent
      The 27 Trophy Plus is more like 27.5″ pitch so switching to the Pro Max plan on moving up 1″ to the 28″ pitch. Keep in mind the Trophy Plus is 13 3/4″ and the Pro Max is 14 1/2″ diameter which should allow you to raise the height 1/2″ to 3/4″ (monitor for good water pressure).
      Scott

  104. I ordered a 30 pitch promax with the lab finish man what a prop!! I run a 21ss Bullet with a 250 SHO. First run ran it up to 87.2 mph at 5850 rpm .hole shot was great it spun a little when the bow was coming down but I like that it’s like its reving up to rocket it out of the hole. Midrange was great hit 87 in less than 600 yards. Great prop Merc raceing !!!!

  105. Scott, I have an Allison 21′ Prosport bass boat with 300XS of which I run heavier loads than your average Allison owner.. Plus I run at higher elevation than most. I am looking to get back to Mercury props.. The last Merc. prop I ran on this boat was a 28 Labbed Pro ET…On good days it would run low 90s with my tournament load and two souls onboard. I loved it except in real rough water, until it slung a blade. The prop I have now is 27 Hydromotive QIX OB It’s a 15″ hybrid with PVS holes and a flair ring.. It would run mid 80s around 6000 rpm.. with a not so great hole shot.. Now here is the curve ball–The above numbers were with my old 300XS and 1.62 gears.. I now have a new 300XS with 1.75 gears.. The 27 Hydro is the only prop I have ran on these gears. It gets out of the hole much better now. But as expected it only runs low 80s at 6300 rpms. I would love to get back to the low 90s with a decent hole shot.. Which is the only downside to the Promax prop that I have heard. I have also heard good things about the Bravo XS…What prop and what pitch would pick for me.. Thanks Mike

    1. Mike,
      We’d like to see you running a Mercury prop also. The Bravo I XS is a great work horse of a prop. It doesn’t care about the weight. It picks up the complete boat, it delivers excellent hole shot, mid-range punch and decent to good top-end (pending on set up). Your goal is to get in the 90’s. From Mercury’s line up – it’s either the Pro ET or the new Pro Max. In most cases, with the Sport Master – the Pro Max vents a fair amount like the Pro ET during planing. You’ve run the ET, so you know what to expect. Moving from the Pro ET to the Pro Max, you’ll also appreciate the high speed turns you can make. The Pro Max stays locked in. A great Mercury customer recently tested a Pro Max Lab Finished 29″ pitch (made from a 30 with lowered cup heights) on his Allison XB 21 BasPort with 1.62:1 300XS. The goal was to hit a big number in cool weather. At 6025 rpm he hit 97.6 and 97.8 mph with the trolling motor, full of fuel and himself. Hopefully we’ll be receiving additional information that we can pass along. Switching from 1.62 to 1.75 gear ratio, this customer would move up 2″ of pitch to a 31″ pitch Pro Max to hit the top number.
      Scott

      1. Scott, I believe I will go with a 30 Promax…
        Do you think the lab finish is worth the extra cost for my application ?
        Do you think I should have the PVS holes drilled ?

        Mike

        1. Mike,
          If you’re interested in top-end numbers, it’s worth the extra couple hundred bucks to go with the Lab. Please custom order it with PVS, it’s extra but PVS gives you the ability to adjust the venting. Have your authorized Mercury Dealer custom order the prop with me and be sure they request PVS.
          Thanks,
          Scott

  106. Scott , I just recently put a 250 pro on my 20 ft XF bullet. I had tuter put a low water pick up on my torque master gearcase with 1.75 gears. The XF bullet has a light nose so didnt know if the promax prop would work for me or the Bravo. I have been told that i will need a 30.

    1. Joe,
      The Bravo I XS or FS (FS with PVS for the Torque Master II gearcase) is a great prop for your set up. It excels in both planing and full throttle performance. However, the Pro Max offers better top speeds over the Bravo I XS. The difference between the two is this; the Bravo I XS is locked in during planing; the Pro Max enables the engine to spin up to 5000 rpm before planing. If you’re looking for a great work horse of a prop, go with the Bravo I XS. If you’re river running or looking for the top end numbers – run the Pro Max. We can customize the Pro Max with the PVS vent system. Have your authorized Mercury Dealer contact me.
      Scott

      1. Scott, I ordered a 30 pitch pro max with the PVS holes yesterday thru Chris Moore in KY. Im running the torque master 1 that has been sent to Titus for a nose cone and low water pick-up with the 1.75 gears. So are you saying the pro max will be the prop as long as i have the holes. Or should i change my order to the bravo ? And should I stay with the 30 or go down to a 29.

        1. Joe,
          It’s a tough call, I can help with your decision but you have to make the call. Consider staying the path with the Pro Max and if there are any issues I’ll support efforts through Chris’s Marine.

          Also we have a Vent Control Ring in the works, should be available in February; the part number is 8M0086395 MSRP $18.The ring allows for some venting between the ring and the front of the gearcase.
          Scott

  107. I have a 25 feet two stepped hull weighing 1150 kg with a 300hp mercury optimax xs . I use 28 lab finished pro Et and i go 87 mph at 6200rpm , I am swapping to promax propeller , What do you recommend me to swap for the pro max pro finished or for the pro max lab finished , and what pitch I can use ? I need more acceleration and top speed

    1. Jesmond,
      The Pro Max has the same blades as the Pro ET so go with the Lab Finished Pro Max to equal the Pro ET @ 6200 rpm. It appears the 28″ pitch Lab Finished is what you want for acceleration and top speed. If you switched to a 30″ pitch, your time to plane would increase and your engine rpm would decrease; down 300 rpm to 5900. Again, If top end speed is your primary goal; and you can deal with the slower start, you would gain 2 mph with the 30″.
      Scott

    1. Sam,
      The Pro Max prop might be too tall in pitch for your set-up. I think there are other Mercury propellers that would run better on the Tomahawk. Mercury Marine has a great selection of 150 EFI Fourstroke engine and boat test results. Check out it out at http://www.mercurymarine.com. Click on Fourstroke, select 150 EFI Fourstroke and then select the Engine Tests tab. There’s over 50 test results. See if one comes close to your new rig.
      Scott

  108. I have a 21XD Bullet with 250 ProXS Torque Master 1.75 gears. I threw an ear on my 27 trophy. I was running 83.2 GPS, 3/4 in – below pad. I was told Bravo I 28 pitch was the prop. But with hours of tinkering best results was 78.7 1in.1/4 below pad at 5900rpm. Love the tinkering but hate losing speed. Would the 28 pro max help me?

    1. Todd,
      The 28″ might be too much prop, consider the 27″ Pro Max. Depending where you are located Mercury dealer Reynold’s Racing in Harriman, TN has a prop test program. Give Glenn a call at 865-882-9623 to discuss.
      Scott

  109. I bought the 30 Pro Max Pro. After running it, I would like to send it back to be Lab Finished. Is this possible? I am running on a Stroker/ 300XS/Sport Master//1.62. Loaded with just me it was 96.7 mph at 5980 rpm. The boat was off balance because of one person in the boat, so I know that there’s more to be had.

  110. I have a 24 Pro Max that I would like lab finished as well is there a way to get this done? Also where can I pick up part# 8M0086395 blow out ring.

    1. Lucas,
      You might be better off selling the Pro Finished 24 and buying a new Lab Finished 24. The vent rings are in process and should be ready in a couple weeks. Place one on order; you might get it even sooner.
      Scott

  111. Hi Scott, I have order my new 2014 Ranger Z119C with the Pro XS 225. I will take delivery in 3 weeks! I have ordered it with the Fury, and choose the go with a 25 pitch. Mostly It will be light loads but occasionally med loads. I noticed most have ordered the same boat with a 24 pitch fury. Based on the above should I stay with the 25 I ordered or change it a 24? The hull weight is 1650 lbs.

    1. Charles,
      Sorry it’s taken me some time to get back to you. I’ve been traveling attending the boat shows. The Fury prop runs tall in pitch so the 25″ pitch might lower the engine rpm too much (150 less than the 24″). I think your new Z119C with the 225 ProXS averages 67 to 69 mph. With your 1.75:1 gear ratio, it appears the 24″ pitch Fury would be the ticket.
      Scott

  112. Scott,
    I spoke with you in Miami at the boat show, thanks for your suggestions. My boat is a new Hell’s Bay Marquesa, 18 ft, hull 695#, but lots of stuff added. Running a 150 ProXS now with about 20 hours, have a jack plate, no special lower unit. With a Tempest Plus 23 out of the box, one or two guys in the boat I can turn 5450-5500 and get 60.0. Pretty good out of the hole, initially requires some tab to settle down then over 40 no tabs, raise motor to about 2.5 inches below pad and trim some. Too much trim or height loose water pressure(below 10).

    I really want to try a ProMax, what pitch should I pick?

    BTW, I understand the Tempest is a little too much pitch but the boat gets 7mpg at about 40-42!

    Thanks in advance for the reply, great talking with you the other day.

    Will

    1. Will,
      Good to hear from you. Comparing the Tempest to the Pro Max, the Pro Max runs tall in pitch. You would have to go down to a 22″ pitch, if we made one. The engine rpm with the Tempest falls in the 5000 to 5750 range. o Given the fuel economy, I’d consider staying with the Tempest.
      All the best,
      Scott

  113. I have a nitro z9 cdc merc 300xs Torque Master 1.75 gears mod 2011,with a 10″ hydraulic atlas . I use 26p Fury and i go 79 mph , 2 people total 410 lbs 36v trolling motor, full load. i usually run shallow river water. Would the pro max help me ? What do you recommend ?
    Thanks

    1. Anastasios,
      Stay with the Fury for the light to medium loads. If you run a heavy load, consider the 28″ pitch Bravo I XS. The Pro Max was designed for the lighter boats.
      Scott

  114. I have a kevlar Lake an Bay Bocagrande and 250 Merc XS torquemaster. My fastest prop is a 26 Bravo1 worked with vent holes and added cup. Holeshot terrific, mid good, top end about 72 with lots of chine walk starting at about 70. This is 25 gallons of fuel and fishing gear, TM, 4 batteries (3 up front) at 5850rpm.

    I also run a Bravo 1 XS 25p is 4mph slower and I consider my best all around prop. Don’t get enough overall lift i think. Holeshot good… great all around and rpm about the same at wot. Rarely run this one wot.

    Is this about all there is or is the ProMax a better fit?

    1. Mitch,
      The Bravo I prop is a hard working prop and tough to beat for carrying the boat. If you had a chance to try (borrow) a 24″ pitch Pro Max, I’d like to say you’ll see better top speeds – but I can’t make the call. One thing to note with the Pro Max is, with some set ups, the prop can ventilate too much while coming on plane. We have a Vent Control Ring (part number 8M0086395) that helps minimize the amount of exhaust blowing over the barrel while coming on plane. Scott

  115. I have a 2003 tr-20 with an mercury 225 efi on a number of occasions I have hit the rev-limiter. I’m running a tempest plus 26 pitch. And wanted advise on running 27 pitch tempest plus. I have a standard 6″ Jack plate and the motor is lifted at the max height on the Jack plate. Will my motor have issues turn the 27 pitch prop. Thanks for any input that you can give

    1. Jason,
      If the trailing edge cup of the 26″ pitch Tempest hasn’t been damaged or the prop hasn’t been repaired after running through sand or gravel, there is no reason not to move up to the 27″ pitch Tempest. You may have to take one of the PVS fittings out to help vent it for quicker time-to-plane performance. It’s always nice when you can run a taller pitch and pick up top speed in addition to better fuel economy in mid-range cruise.
      Scott

    1. Allen,
      Yes. You can use it provided the PVS system is installed. The Pro Max does not come with PVS but we can install it for an added fee. Have your authorized Mercury dealer contact me to have the (4) PVS holes installed.
      Scott

  116. I have a 2004 Ranger Z21. I repowered it with a Mercury 250 Pro XS. I was wondering what pitch prop should I be turning in a 4 blade. I have a friend that has a 22ft ranger with a 300 hp mercury and he has a 27 ” pitch. He said he was running in the high 70s. He loves it. Performs better than anything else he has tried. What would be the price on this prop.

    1. Chad,
      Can you tell us what are you running today for a 3 blade? I’m thinking it’s a 25″ Fury or 26″ Tempest. If true, then the 27″ pitch Bravo I XS with the 1″ vent holes would be the 4 blade of choice. To help clarify, the Bravo I XS is for the 250 Pro XS with the black gearcase or the Torque Master gearcase. The Bravo I FS is for the Verado and the 250 Pro XS with the Torque Master II gearcase. The Pro Max is geared more toward the lighter bass boats.
      Scott

  117. I have a sleekcraft with a modified V and a hydraulic 6 in set back…I have ordered a new 300 sx with a sportsmater lower unit…I would like to run a pro max prop ….What you recommend as a start. Thank you
    Mike

    1. Mike,
      What engine was on your Sleekcraft? Also – what was your WOT rpm and speed, gear ratio, prop name and pitch? Also, what gear ratio Sport Master is on your 300 XS?

      Scott

      1. Previous motor 250 sx .. With a bravo 1 xs 28 in wot 6200 at 86 mph gps gear ratio 1:75 also ran a pro et 30 in results about the same… Hole shots much better with with bravo xs….the new 300sx gear ratio is also 1:75……with my previous sleekcratf sst and older 2.5 similar set up we would constantly do 90-92 mph wot…. The motor was considerably lighter then the current one … Could the extra weight at the stern impact the ability to lift the back and get less air under it ….thanks
        Mike

        1. Mike,
          With like gear ratios, we usually see a 2″ increase in pitch size when moving up from a 250XS to the 300XS. Seems odd that the big pitch 30″ Pro ET delivered similar results as a 28″ pitch Bravo I XS. Something is causing the Pro ET to slip. Your data is leading me to think you may want to try our new Pro Max prop (29″ pitch Pro Finished or 30″ Lab Finished). I agree with you regarding weight. It plays a big role with set up and speed.
          Scott

  118. I have a 2oo1 V I P Baystealth 2180 ..a.2003 Yamaha V MAX H P D I 225…With a 1.75 gear case….I currently am running a Fusion 4 24 pitch prop and turning 61mph @5500 R P M ..H ad a friend run my boat with a BRAVO 1 26 pitch and due to a 25 in shaft instead of a 30 it spun a hub at 68 M P H he said he had some left in it when it spun..Now I have corrected the problem with a 5 in extention..and the numbers on the Fusion 4 are what I got with a full fuel tank 45 gallons…with no wind..Ran it 4 times and got the same numbers all 4 times. The Fusion 4 has 16 % prop slip..Going to get that prop worked on and see if it will reduce the slip…..Very interested in the PRO MAX…..Not sure what pitch to try….Was going to buy a Bravo 1 but…This prop seems way better…Would appreciate all your input…..Thanks

    1. Eddie,
      Your Bravo I performance is promising. Can you provide the style of Bravo I you were running (stock, Bravo I FS or Bravo I XS)? Also, what rpm did you hit at 68 mph? Your information will help me in determining if the Pro Max is the way to go.
      Scott

  119. Scott….
    We have two Storm 206’s ….one with the new TM2 on a new 250 Pro XS, the other with a 2006 Merc racing 250 XS with a stock TM gearcase. We have run the Pro Max 28 on both boats with the new 250 / TM2 gearcase running at 1″ under the pad PS/CL @ 6100 at 89.1 mph before it showed signs of blowout. The 06 250XS turned it up to 6350 at 90.1 but we are pushing our luck in the blowout area. Hands down the Pro Max outperforms EVERY other prop we have run ( Bravo1, Fury, Tempest Plus etc ) Thinking of finding a 3.0L Sportmaster and running the engine height up but I’m figuring will probably have to go to a 29 or 30 to keep the rpms down. The Storm is old Allison GT 20 hull….. any thoughts ( especially where the performance limits of the TM2 gearcase is concerned ) you might have will be appreciated. Thanks!

    1. Mike,
      Thanks for the incredible performance numbers and Pro Max accolades. The Torque Masters have limitations. With the speeds you’re obtaining, I like the idea of switching to the Sport Master. If you go with a 1.62 Sport Master, you might be able to run the 28″ pitch Pro Max. However, You may need to add (4) PVS vent holes. The added venting will help with planing.
      Have fun.
      Scott

  120. I am currently running a 27p turbo txp prop on a stratos ASX. With a merc 250xs with 1.62 gears/sportmaster gearcase. Im turning 5800-5900 rpm. 78mph average top speed. I am thinking of trying a promax because my boat needs a ton of bow lift . What pitch do you suggest? The boat is a 21′ bass boat if you arent familiar with them.

    Thanks
    Zach

    1. Zach,
      If it’s the TXP OT4 27, then it’s similar in rpm to the 28″ pitch Pro Max. Word is the Pro Max is easier to drive, pulls hard with great lift – all the way to WOT. The blades are thicker than the other prop for enhanced durability. Thanks for checking.
      Scott

  121. # 152 He ran a stock Bravo 1…He told me he was in the 55–5600 range when he spun the hub….He said he still had some left before he spun the hub..but..The short shaft prevented him from finding out what it would do….Now with the shaft lengthened ….Haven’t been able to get with him to run the Bravo 1 again……If you do recommend a Pro Max ..what pitch should I need…Thanks for your reply

    1. Eddie,
      It Looks like the Bravo I has more promise than the Pro Max for your rig. If you can get your hands on that stock 26” Bravo I, run it again and send me your top speed with rpm. I can run the numbers and let you know if you should stay with the stock Bravo I or move to the Bravo I FS.
      Thanks,
      Scott

  122. Scott,
    I’m in the process of purchasing a 2014 20′ Princecraft, V bottom, fishing boat weighing 1850 lbs. empty to 2264 lbs. max with a 2014 250 Mercury OptiMax Pro XS. Unsure of gear ratio with this new engine. The standard prop from the factory with this 250 is a Black Max 21″ pitch. I’d like to use that prop as a spare and purchase a Pro Max Prop 23″ or 25″ pitch. (1) Would you recommend this and if so, would the increase of pitch still be acceptable with this weight and motor combo? (2) Any comment about a Bravo I XS with similar pitch in lieu of the Pro Max? (3) Should I just stick with a 21″ pitch?
    Thanks very much in advance for your reply.
    Bob

    1. Robert,
      I’m going to steer you toward the hybrid Bravo I. The blade design is better for your set up. The hybrid Bravo I will offer improved planning, maintaining plane at slower speeds, better mid-range cruise efficiency and excellent top end speeds all while carrying light to heavy loads. Mercury Racing offers the Bravo I XS from 22″ – 31″ pitch. The Bravo I FS is pitch range is from 20″ – 31″ in one inch increments. These two props come from the same casting; the difference being the vent holes. The Bravo I XS features 1″ vent holes and the Bravo I FS comes with adjustable 3/4″ vent holes. Typically, the lower the pitch the lower the venting that is required. Thus, the lowest pitch we offer for the Bravo I FS is 20″ and 21″. Unfortunately, I don’t have any data comparing the Black Max with the Bravo I FS. We know the Bravo I’s run light in pitch so I’m thinking you can go pitch for pitch. Also, I need to make you aware the hybrid 4 blade Bravo I likes to run at elevated transom heights compared to 3 blade props. Depending on how you engine is set up, you may need to go up one hole (testing required).
      Have fun with your new boat.
      Scott

  123. How would the pro max perform on a 24′ Skeeter bay boat? I am currently running a 21 pitch mercury mirage with great hole shot and 57 mph top speed. hopefully the pro max delivers comparably hole shot with a couple mph top end improvement.

    Looking forward to your response.

    1. Todd,
      The Pro Max was designed for lighter weight boats so the pitch offering will not go low enough for your rig. Your performance is actually not bad for your size of boat and the 300XS. The only other prop that might help is the 22″ pitch Bravo I XS. Planing should improve – along with rough water performance. I’m not certain regarding your top end performance. Send me you rpm at wide open throttle. I’ll run the numbers and let you know what I come up with.
      Thanks,
      Scott

        1. Todd,
          Okay. So, at 5800 rpm – you’re doing 57 mph. I forgot to ask; which motor you are running? Please also supply the gear ratio.
          Scott

          1. Just off the water with the new Bravo 1 XS 22″, below are the results.

            24′ Skeeter Bay ZX 24 w/T-Top
            59.1 mph on gps
            6,000 rpm
            Great holeshot and handling

            3 passengers, 500lbs
            3/4 tank fuel
            Full tackle, tools and gear
            Ice chest full
            Above details noted just to convey the boat was carrying a load.

            Thanks for the advice and recommendation Scott, you were spot on!

          2. Todd,
            Awesome results. Glad you went with the Bravo I XS. Thanks for sharing.
            Scott

  124. Hello,I have a06 liberator stealth from Dave in Texas running a 250xs 28 pitch trophy plus 3/4 above pad only getting 92mph want to hit 100 if poss what Promax should I try,scott

    1. Scott,
      I’m thinking the 28″ pitch Lab Finished Pro Max should work to match rpm. However an 8 mph gain is asking allot. With your engine rpm and gear ratio I would be able to tell you if there might be any benefit.
      Scott

  125. Scott, I have a 250 SHO on a Majek 2200 extreme original prop was 26p vented Bravo 1. I recently purchased a 24p Promax and am noticing a little vibration a lower rpm’s is this normal with Promax. I do not get this with my other prop.

    1. Lucas,
      The technician’s goal is to zero balance all Mercury Racing propellers. Things happen. If you want me to inspect the prop, please send it back to Mercury Racing. Click here for the address. If it’s not the balance it could be the way the exhaust is flowing over the small barrel.
      Scott

  126. Hello Scott!

    I’m currently running a Bravo I 28.5″ (originally 32″) on my 300XS and seeing speeds just above 102 MPH when I hit the limiter. The boat is a 22 foot catamaran called Hydrolift Sportcat, based of something called a Lynx in Great Britain. Using the Prop Slip Calculator I get about 5% slip (using the figures 28.5, 1.62, 6500, 102.5). The boat behaves very good with the Bravo, it’s stable to drive and offers a nice cruise speed of 60 MPH @ 3800 RPM. The downside is, apart from hitting the limiter, that the boat is somewhat sluggish in its acceleration, there’s no real go in it. It also loses its grip during planing, it’s no real problem as you just ease of the throttle and I’m not sure if the propeller is to blame or if it’s just a characteristic of the boat.

    The Pro Max looks very interesting, the previous owner did run a 26″ Pro E.T. and while losing a lot of top speed (reduced to 86 MPH @ rev limit) the boat took off like a rocket. This prop did offer a harder ride though, according to the previous owner it was due to the exhausts passing over the blades and causing turbulence. Seeing as how the Pro Max should offer the Pro E.T.’s acceleration along with the Bravo’s stable ride it sounds like the choice for my new every-day prop. Question is, what pitch should I have if going for the Pro Finish?

    1. Johan,
      A reworked Bravo I doesn’t tell me what you really have for pitch. it’s also interesting that your engine revs up to 6500 rpm. Chip change, perhaps? It’s hard to say what pitch you should go with in the Pro Max line. When using the slip calculator, a 30″ pitch Lab Finish should get you close to 6200 rpm.
      Scott

  127. Hello!
    I have an old British ski race boat, Ring 20a and a 1988 2.4. Black Max 225hp, under rebuild. The engine will benefit from a race tune, so it should produce at least 225hp at the prop. A CMC manual lift and Bob’s Bigfoot nose cone will also be installed together with a Hot Foot throttle and Seastar Pro steering. I don’t yet have any use data of the rig with any prop. A similar boat with a 225hp Optimax and a Fury 27P has reached 80mph. My boat and engine are a bit older, so I would say 75mph with a Fury 27P is more realistic. My engine RPM is predicted at 6100 at WOT. The boat, engine and gear weigh total about 1.500lbs. Based on previous experiences of similar boats with engines lifted rather high upp I was suggested by a local specialist to try a Trophy Plus 26P. At this point I do not intend to race the boat officially but I am looking into joining a few Poker Runs. My speed target is around the 80mph mark. Based on the still very vague information can you suggest which pitch Pro Max I should try first? Thanks in advance!

    1. IIkka,
      Should be a fun set up. I wish you had a prop that could provide me performance data, i.e. rpm and speeds. If I had to guess, given the engine rpm to 6100 and guessing at the gear ratio, you may need a lower pitch than what you’re thinking. Any way you can get your hands on a prop to test with before I recommend a Pro Max pitch for you?
      Looking forward to hearing from you.
      Cheers,
      Scott

  128. Hey Scott I have a 20th 6 pro craft bass boat with a 2003 200 mercury efi. I have a 24 pitch Tempest it’s really sluggish out of the hole. My rpm range at top end is 5500 to 5700 top speed is about 56 to 59 MPh .any suggestions

    1. Bo,
      The Tempest is a great prop and, in many cases, taking one of the PVS vent fittings out could help your planing performance. The prop is slipping at wide open which tells me either the prop has been damaged and repaired or just worn out. If you step down 1″ of pitch you will pick up 150 rpm which will take care of planing. A fresh prop should hook up better for greater top speed as well. Work with your local authorized Mercury. See if they have a 23 Tempest for you to try.
      Scott

  129. Hey guys. I’m running a lake and bay 20′ Kevlar with a 300xs. What size pitch pro max should I be demoing? Also what pitch bravo 1 xs? I’m running a 26 fury now and I am just not seeing much on the top end. 71mph is all. Thanks

    1. Kyle,
      Depending on the engine rpm, probably the 26 Pro Max (runs heavy in pitch) and the 28″ pitch Bravo I XS (the Bravo I runs light in pitch).
      Scott

  130. hello! I am really intrested about this promax prop.. I just dont know about the pitch.. we run on 27-28p 15,25 dia hydromotives on a Offshore race boat 6,4 meters long and 1,5meters wide.. boat weighs about 900 kg and were doing speeds about 65 KNOTS with a evinrude 150 h.o.. So this being a 4 blade what should i consider? and then id like to know the diameter of the hub? is it a v6 big hub or the smaller that also fitt v6s? have driven a 28″ Et lightning but it didnt deliver as expected and was a little bit to heavy ( 5400 rpm)

    1. Atte,
      Using the 28″ Lightning ET as our reference, a move to the 26″ pitch Lab Finished Pro Max should result with a 200 rpm gain. You may see more rpm with the 4 blade because the added blade will enable you to run the engine at an elevated transom height (testing required – be sure to maintain enough water pressure).
      Have fun.
      Scott

  131. I have this same boat with a 300 hpdi. I just tried out a 30″ ET Lightning. Although I loved the cruising and top speed performance (76 mph at 5400 rpm), I do not like the slippage. I prefer a neck snapping holeshot and the ability to hit 75 mph at 5800.

    My original 19″ 4 blade bravo is a rocket out of the hole but tops out at 64.5 mph at 6100 rpm.

    What are your thoughts?

    Thanks, Allan
    allancpc at yahoo

    1. Allan,
      Please provide your gear ratio. Also, can you verify the pitch of the Bravo I along with style – FS or XS – or is it a modified stock Bravo I?
      Scott

  132. Hello, I have a 2014 Xb-21 prosport with the 250 sport XS sport master 1.62 and a 5″ cmc hydraulic Jack plate,What pitch should I run in the pro max to obtain the fastest top end but still retain a good hole shot with two people a full tank of gas and 150 lbs of fishing gear?

  133. I have a Optimax 115 Pro Xs currently running a Laser2 22″ 5800-5900RPM
    Can i run a Bravo 1 outboard on 115 Pro Xs ? What prop do you recommend??

    1. Seba,
      I wish you could, but the Bravo I is too big of a propeller. It is not only too big in diameter but the barrel is too large to fit on the prop shaft and gearcase as well. If you are looking for a 4 blade propeller, consider the Trophy Plus (stainless steel). If you’re hitting 5800 to 5900 rpm, a move to the 23″ pitch should drop engine speed by 150 to 200 rpm. Again – using your numbers, you can expect a gain in engine speed by 150 to 200 rpm by moving to a 21″ pitch (not the right direction).
      Scott

      1. Thanks, Scott.
        Im looking for a bit more top speed Is there any Merc Racing prop that fit the 115 Pro Xs?
        I was looking in the quicksilver accessories guide and the next Laser2 is 24″ i tink its too big.
        Do you think the Trophy Plus 23″ would be faster?

        Will you make the ProMax with PVS in the future?

        1. Seba,
          The Laser II, with its bow lift capabilities, is a great performance prop for the 115 Pro XS. The Trophy 4-blade starts also lifts the stern – and not all boats react well to that. If you’re running the 22″ pitch Laser II, moving to a 23″ pitch Trophy should drop your engine speed by 150 to 200 rpm. Is that too low for your engine? We are working on making the Pro Max with PVS. We’re planning to have them ready in 2015.
          Regards,
          Scott

  134. Howdy. I have a 24 Haynie HO. 300 XS with a Fleetmaster (1.75). Boat loader weighs right at 3000 lbs if the adversized hull weight of 1800 lbs is correct. That includes batteries, oil, fuel, power pole, seats, gear (i dont take much) and 1 person. Also, it has a short front deck…almost all weight is in the rear. It came with a 23p Turbo OT4. I can turn it 5900 rpms, trimmed all the way up (before amount of slip increases to the point that it loses speed) with a tail wind and get 69 mph GPS. I can regularly get 65 mph with 2 – 4 people turning around 5600 – 5700 rpms. At 4000 rpm, get around 45 mph.

    With all that background, i want to get another 2 – 3 mph. Would the pro max help me out? If so, what pitch and what finish? I am not concerned about the thinner blades of the lab finish; just not sure if the lab finish would help me out on that boat.

    Yes, i know that boat design (length, width, weight, etc.) is not really for speed; however, i know i can get low 70s with the right set up.

    Thanks in advance.

    T

    1. I forgot to mention that the Haynie does have a pad and a built in set back of a few inches. This rig also has a 10″ set back hydraulic jackplate.

      T

    2. Tom,
      I’m not certain the Pro Max is the way to go for your set-up. I’m going to refer you to Eric Simmons from Simmons Custom Boats. Contact Eric to see what his thoughts are for your set up. He’ll work with you even though you’re not running one of his boats. Eric has worked closely with us in the development of the Pro Max and various Bravo I propellers. Follow-up to let us know what you end up running.
      Thanks,
      Scott

  135. Hi Scott,
    I have a 19ft ski race (700lb) with a 300xs with the ‘wing master’ gearbox. currently running a 30 pro ET, 6000RPM @ 90 mph. I notice the wing master appears to lift the back of the boat up at 88mph + which is very unsettling. other competitors have experienced the same issue.
    is it the gear box causing this lift at the stern? or the prop?
    will engine higher engine height help with this?
    is the Pro Max a option?

    Thanks.

    1. Evan,
      It’s interesting the gearcase is staying hooked up at these speeds as it is reaching peak performance. I’m not sure if increasing the height would be beneficial. It could make it worse. The Pro Max is based off the Pro E.T. Exhaust flowing through the exhaust barrel might benefit speed performance. The barrel is also a lifting surface and could increase stern lift. Testing is key.
      Have fun,
      Scott

  136. Scott –
    I have a 1986 21.5′ Eliminator Sport Cruiser. It is outfitted with a 1996 225 Promax. Currently am running a 5 blade and can’t tell you what the pitch is because it isn’t stamped on the side like every other prop I have seen. I am running 60 – 65 with 5 people on board and fully loaded. RPM at 6500 – 6600 RPM. The 5 blade is banged up and needs to be replaced. This is a family boat but I do like to hang with my friends and theie big blocks. What is a good “all purpose” prop for this set up?? Kids are young so we do a little bit of tubing and I ski behind the boat (I weigh about 150 LBS). Need to buy a new prop and just want something that will work for everything we do and help the motor perform well.
    Thanks.

    1. Joe,
      If the 5-blade your referring to is the High Five, Mercury still makes it. You may want to stick with that style if you know it’s working for you. Look down inside the exhaust barrel. Mercury casts the part number and pitch into the collar. The next all-around prop would be the 4 blade Bravo I XS, However, without knowing the pitch you’re currently running, I can’t recommend a pitch.
      Have fun with the family,
      Scott

  137. Hello I have phanton 25 with 250ho, 1.71 gear, and tempest plus 27p with 1 “below.
    5800 rpm and do a good rpm, the engine pushes hard 5800-5900.
    speed is 81 mph at 5800-5850.
    rpm for the same would be 26 “or 27”?

  138. Scott-
    I have a 22 Velocity with a 300x, 1.75 gears, 4 in. setback, running 30 pro finish pro e.t. My best speed was 95 mph with this prop at 6400 rpm. What pitch Pro max do you think I should go with for my set up and lab finish or pro finish?
    Thanks

    1. Ben,
      The Pro Max has the same blade design as the Pro ET, the only difference is the exhaust barrel. Your Velocity may benefit from the added stern lift created by the barrel. Only testing will tell. If your Pro Finished 30″ was made in 2005-2007, the blade thickness curve is similar to today’s Lab Finished Pro Max.
      Scott

      1. So are you saying I should go with a lab finished 30 pro max? And have the blade thicknesses changed on the pro et’s because i bought a 28 pro finish that doesn’t turn the rpm that I expected at all.

        1. Ben,
          The thickness depends on when your Pro E.T. was made. If it was manufactured between 2005 to 2007 – and you want to stick with a Pro Finish, go with a 29″ pitch Pro Max. If after 2007 then go with the 30″ pitch Pro Finished.
          Scott

  139. Hi Scott-
    Thanks for the reply. I took the prop off this weekend and am getting it repaired. It is a 22p Five blade and I am running the stock pro max 1.87:1 gears. Should I be running such high RPM’s as I am at that speed, fully loaded?
    Thanks
    Joe

  140. hello scott currently have a 300XS , 1.62 sport master with 28 lab troppy 5800 rpm 94 mph you recommend for me to upload the final speed , My boat is a 21 challenger, and please difference in mph between the propeller and the promax troppy

  141. hi Scoot
    I have a 21 challenger boat with a motor 300XS relationship 1.62.1 at 5800 rpm with a propeller troppy plus 28 lab and the max speed is 93MPH please Promax recommends that prop up the MPH to me the difference between troppy plus and Promax

    1. Jose,
      The biggest difference is the 14.5″ diameter and tremendous amount of cup in the Pro Max propeller. These two attributes should enable you to run the engine at elevated transom heights for both increased engine rpm and boat speed. Consider running the 28“ Pro-Finished Pro Max. Have it special ordered with (4) PVS holes machined in. The PVS holes will enable you to fine tune the prop for the 1.62:1 gear ratio resulting in enhanced hole shot performance.
      Scott

  142. Gentelmen,
    I have a 2014 Jupiter 26FS rigged with twin 2000 Yamaha 250 OX66’s. The boat has a Bob’s Machine 6 inch setback dual engine jack-plate. Im getting 5700 RPM at 62MPH with 23 pitch Saltwater Series Props, all gear and 3/4 tank of fuel. 1.81 Gears. Was looking for something that could handle breaking the water surface better for higher jacking position. Was considering going to Mirage 25 pitch.

    Thank you!

  143. The current props are 14 1/2 in diameter. After studying the mercury site more i discovered Bravo 1 Outboard. The description seems to fit what im looking for as far as big center console with high engine height. The Bravos are 15 1/4 in diameter so i am inclined to think of staying at 23 pitch especially since they are 4 blade vs. three on my 23’s. Or can i get smaller diameter Bravos as the smaller the diameter the faster.

    Thank you again 🙂

    1. Newell,
      Check out the Bravo I FS on Mercury Racing web site. I think you’ll find these ideal for your performance goals. The Bravo I FS is designed to enable you to move up 1″ of pitch to achieve similar rpm as 23″ pitch props; even with the larger diameter. For you, I’m leaning toward the 24″ pitch Bravo I FS. keep in mind – if you can raise your engine up another 3/4,” expect to pick up additional rpm.
      Scott

  144. I also have a Challenger with 300XS with 1.87 gears, sport master., 6″ Bob’s hydraulic jackplate. Running a 31 pitch Promax lab @ 6400 RPM depending on humidity and air temp, 92 MPH.

  145. I have a 1999 Lake N Bay Boca Grande with a 300 hpdi / vmax. I originally had a 200 hpdi / vmax on the boat and just repowered. I have tried a few different props so far but I have not been able to find the best all around prop.

    – 19 Pitch – 4 Blade Powertech – Great holeshot, 60 mph at 6100 rpm
    – 23 Pitch – 4 Blade Bravo – Great holeshot but motor hits redline to quick – 65 mph at 6100 rpm
    – 26 Pitch – 4 Blade Trophy – Terrible holeshot because of the vent holes. I am told that because it is not a Trophy plus, the vent holes cannot be plugged.
    – 30 Pitch – 4 Blade ET Lightning – Over the hub exhaust – Terrible holeshot but 76 mph at 5400 rpm

    I want top speed but the holeshot is priority. I prefer to not have any cavitation or slip and just jump out of the water. I live in Islamorada and several people have Lake and Bays but everyone seems to point me in a different direction. Most are focused on top speed and I am most interested in a all around prop.

    Thank you for taking the time to help out and have a great day.

    1. Allan,
      For the best all-around performance (hole shot to WOT), consider the Bravo I style propeller. For your application, our Bravo I FS with Mercury’s PVS controllable vent system is best – particularly for planing. I’m assuming the 23″ pitch Bravo I you referenced is either a FS or XS style since they are the only Bravo Is available in odd pitch. When moving from the 23″ to the 25″, the 25″ pitch should lower the engine speed by 300 rpm. A 26″ pitch prop would lower engine speed by approximately 450 rpm. The Lightning E.T. is one of our faster props. If you stepped down to a 28″ pitch you might see 5700 rpm at 73 – 74 mph. However – over the hub exhaust props are not the best for hole shot or time to plane performance. Have fun!
      Scott

      1. Scott,

        So you are recommending the Bravo FS which is designed for the Four Strokes?

        If this is what you recommend, I will follow your lead, but I wanted to verify before I spent the money since I am running a 2 stroke motor. (2004 Yamaha HPDI/VMax with a 1.75 Gear Ratio / 20″ shaft)

        This past weekend I ran a 25 pitch Trophy with all of the PVS vent holes plugged. The whole shot wasnt bad and there was little to no cavitation. It cruised very comfortably at 68 mph at 5800 rpms but it seems to take a while to get there.

        I was thinking about going with the Pro-Max or the Bravo I of your recommendation and either a 27 or 28 pitch / 4 blade with a Lab Finish.

        Thank you again for taking the time to respond.

        1. Allan,
          Thanks for checking on which style to run. Our dealers have found 2-stroke Yamaha’s and E-Tecs don’t require as much venting as a Mercury 2 stroke. Thus, for most Mercury 2 strokes (unless it’s equipped with the Torque Master II) gearcase, we recommend the Bravo I XS. However, in your case – I’m leaning toward the Bravo I FS with it’s controllable vented system. Regarding the 25″ pitch Trophy, the Bravo I FS is designed to move up 1″ of pitch to achieve similar rpm. I’m not sure where your engine should run for rpm at WOT, so it’s your call on the pitch. It seams 27″ or 28″ are too much pitch.
          Scott

  146. I have a 2013 115 Pro XS. Currently running a trophy plus with Good overall performance. The Promax says it will work on a 115 but starts at 23p. Do you think my 18ft maverick hpx carbon kevlar flats boat will sling a 23p. I assume there are no plans on a 21p? Looking forward to a response. If the Promax is not a good option for me what 4 blade would you recommend or is the trophy plus my best option.

  147. I have a 2003 triton 186 with 2005 XR6 150, I had the heads shaved, carbs jetted out, also installed a 200 tuner and running on a 6″ jackplate. I’m running a 25p tempest out the box hitting rev limit at 5800rpm and only getting 63.3- 64 on a good day. Done started below pad to raising my motor and still hit rev limit and can not get past 63ish. What prop do you think I should try, 26 tempest or something diff. Thanks

    1. Travis,
      The prop is the next area for you to work with. If you have access to some props, consider a fresh 26″ Tempest Plus or a 25″ Fury. The Fury prop runs tall in pitch and should provide similar rpm to the 26″ pitch Tempest. If you don’t have access to test props consider contacting Glenn Reynolds at Reynolds Racing & Marine in Harriman, Tennessee. Glenn has a test program featuring a variety of Mercury propellers.
      Scott

  148. Hi scott, I’m a loyal Mercury owner for years. I have a 1988 Allison xtb with a mercury 280. It’s a light boat. It has a 15 inch mid section. 10 inch set-back, even with the pad. I also have a modified torque master lower unit with low water pick-up on it. I used to run a 27 Trophy which got me in the high 90’s with tournament loads but I would “fling blades” like it was out of style. After going thru 3 of them and wiping out my cavation plate the last time, I said enought is enought. I loved the performance of the Trophy but now I’m running a 28 Chopper. I think it handles good and I like the extra bow lift and the hole shot is awesome but overall the Trophy was a great prop minues the ear flinging. When I take off the trolling motor and try for speed, I play with a 28 et which will get me to triple digits. My rev limiter is 7250 and should I get 27 Promax in pro finish, a 27 Promax and get it labbed, or move up to a 28 labbed Promax. Also do you think I will have the possibility of fling ears on the Pro max. Thank you for expert input and knowledge. Jim A

    1. Jim,
      What a great set up. The Pro Max was designed to support set ups like yours. It offers thicker blades than the Trophy Plus – without compromising performance. If you’re looking for the top number, Lab Finish is probably the way to go. I’d like to point you toward Glenn Reynolds from Reynolds Racing in Harriman. Glenn has a test prop program and should be able to offer additional insight regarding your set up.
      Scott

  149. Hello
    I am from Russia. Our team takes part in marathon races on boats by the rules UIM endurance pneumaticPR2.
    Our RIB boat hull is monogedron with 21 degree deadrise at the transom. The boat with pilot and fuel weights 950 kg, 830 kg without fuel. Outboard motor is Mercury Optimax 200 Xs offshore, standard gear box, removal of the motor is 30 cm jackplate, the rise of the cavitation plate is above the keel of 15 cm. Propeller is Trophy+ 24″. Maximum engine rev 6400-6550 rpm, maximum speed 127-129 km/h.
    Our main problem is that already at the third propeller Trophy+ total loss of the blades (about Hub) during the race.
    We want to use more durable alloy x7 propeller Pomax. Recomend me, please, best choice of pitch Promax prop for our boat.
    P.S. Sorry for my English

    1. Roman,
      Thanks for the question. The Pro Max, made with the X7 alloy and thicker blades, was designed for greater durability (less blade breakage). The Pro Max is a larger diameter than the Trophy and has a tremendous amount of cup along the trailing edge. Both features should enable you to elevate the engine for increased rpm and performance. Start with the 24″ pitch.
      Scott

  150. Hey Scott, just bought a yamaha 250 vmax and put it on my 20′ storm bass boat and the prop im trying is a 27pitch 3blade tempest with a mercury hub kit. Its on a 10″ set back jack plate. I just tried it out today and it got up on plane fine and ran good until I started to trim up the boat started to porpoise real bad and I tried to stay on it and trim on up out of it and just got worse. I had a 200 prov yamaha on it before with a 4blade 25pitch and it never did this. Do you think this is a prop issue? If so, would this promax be a good fit? What pitch you recommand also? Thanks for your time.

    1. Wes,
      Your go fast light weight Storm is a strong candidate for the Pro Max. These props run tall in pitch so if you want to match the equal rpm of the 27” Tempest – consider a 26″ pitch Pro Max.
      Scott

  151. hi Scott, I have a 19′ connelly aussie ski race boat with a 300 promax 1.62 sporty lower. Have been running a 26 trophy with good results. getting early 80’s at about 6000 rpm with a skier on. To do this we seem to have to run a lot of trim to get the boat loose and as such are throwing a fair rooster tail. Generally we suffer from a boat that sits “wet” and needs a heap of both bow and stern lift to get loose and run hard,,, Is the Promax the answer ? if so pro finish or lab finish. Pitch seems ok at 26 for ski racing.
    Cheers Chris

    1. Chris,
      The Pro Max would be interesting prop to see on your set up. The parabolic rake offers bow lift; the small barrel also helps with bow lift (compared to a big barrel) and offers a small amount of stern lift. Consider starting with the Pro Finished 25″ pitch and keep in mind the Trophy is 13.75″ and the Pro Max is 14.50″ diameter so the engine height may have to change.
      Scott

  152. Scott need help : i have a sterling 22ft bass boat with trim tabs , i have a 300xs with a torque master 1.75 gears with a titus nones cone added to it. i bought a 30 pitch pro-max , from jaco had you put the 8 pvs holes in it. the mid range an top end is great 89.1 by my else, an 87.9 with my fishing partner who weighs 245 an i weigh 240 so the prop carries the load great. run the prop 1/2 to 3/4 of an inch above the pad. the problem is the hole shot is a problem when i smash the gas pedal motor revs up to about 4000. starts to take off great , but when the nose of the boat starts to fall over it CAVITATES AN OVER REVS AGAIN i have to let off the gas an let the prop catch then feather the gas pedal until on a plane then go .like the , allready bought a blow out ring does not help . is there an thing else i can do , or do i sell this thing an get another prop. hate to give up on midrange an top end .best driving prop ever had on this boat.had 31 bravo xs hole shot was grear but top end was about 3mph slower . HELP!!!!!

    1. Jr. and I have talked about the prop cavitation as the boat rolls over on to plane. Cavitation can occur for a slight period and getting around this we have to like Jr. take your foot out of it and feather the throttle for a second or two as the boat rolls onto plane. Until we can come up with a prop that eliminates the cavitation Jr. will continue running the Pro Max.
      Scott

  153. I am running a 2008 nitro 929 cdx dc with a new 250 pro xs with the gen 2 torquemaster lower unit. My set up includes a 10″ bobs action jack and carrying 2 power pole blades and 4 batteries. I am currently running a 26p fury 3 blade with the pvs holes open. Once I have a 3/4 tank of fuel and fill the livewells, I am having trouble getting on plane because the prop is cavitating. When running with 2 people and a half tank of gas and the livewells empty I am getting 74mph at 6000 rpms. Suggestions please and thank you!

    1. Vic,
      The four blade Bravo I FS and XS are both designed to pick up where the 3 blade falters, carrying heavy loads. The Bravo I FS or XS lifts the whole boat offering the needed bow lift in addition to lifting the stern maximizing performance. The Bravo I FS has the smaller 3/4″ adjustable PVS vent holes where the Bravo I XS has the large non-adjustable 1″ vent holes. If you had the old Torque Master I’d recommend the Bravo I XS with the big holes but with the Torque Master II the PVS vent hole seems to work the best. Now for what pitch; the Fury runs tall in pitch and the Bravo I FS are light in pitch. What that means is to equal the engine rpm with the 26” Fury move up to a 28” pitch Bravo I FS. In your case consider the 27” pitch Bravo I FS to maximize the props heavy load carrying ability with good hole shot and top end speeds.
      Scott

  154. Hello, I have a trick 21 with optimax 225hp with a tempest 27 it runs to 128 km to 5800 rpm, there the constrainer enters, that propeller me recomendas since the tempest cavita to go out to the gliding, trophy bonus or promax in that I spend 27, 28. Excuse my Englishman I write to you from Argentina .Gracias

    1. Miguel,
      If the Tempest is a stock propeller, consider the 27” Trophy Plus, 27” Pro Max or the 28 pitch Bravo I XS. All four are (4) blade propellers that should stay hooked up better than the Tempest. The Pro Max and Bravo I XS will allow for increased engine height over the Tempest and Trophy which could increase your top speed.
      Scott

  155. Hi Scott
    I intend to purchase the Pro Max 24 Lab Finished. As it’s now launched with PVS, I’m afraid to get the old version w/o PVS. Could you please provide me with the correct SKU number on the “new” version?

    1. Rupert,
      The move to PVS is a running change, part numbers will not be changing. As of March 16, the 26 and 28 pitches have made the change; 24 and 30 pitches should be switched in May.
      Thanks,
      Scott

  156. Hi Scott, I have a Sterling bass boat with a 250xs on it. When I bought the boat came with a 27p trophy. This prop had lots of blow out when the boat hooped on plane so I decided to go with a 28p
    bravo 1. I really like this prop, ran 80 mph and had a great holeshot, but unfortunately the prop threw one of the blades. So Right now I’m at a crossroads, should I purchase another bravo 1 or get a Promax. Scott what Pitch is needed if you feel the promax would be a better prop?

    1. Tony,
      Sorry to hear about the blade missing. If the prop doesn’t have any nicks on the leading edge or trailing edge – you might consider taking it to your authorized Mercury dealer for warranty consideration. The propellers do receive a one year warranty. I’ve heard of some Sterling’s running the Pro Max and if you go that route; consider the Pro Finished version in 26″ pitch. The part number is 8M0079701.
      Regards,
      Scott

  157. Scott,
    I have a 2015 Legend V20 with a 250 ProXS the boat runs well with a 25 Fury 74mph top end but when loaded it fell off the charts and does not perform well at all with no lift and only 68mph. I just purchased a 26 Bravo XS and ran well, holds the load and handles well top end 70mph,but that was in calm water. In rougher seas the boat didn’t do so well it seems that I have too much stern lift and the boat wanted to bounce around and I could never really find a good speed or engine height. This was not present when running the Fury in the rough.I not sure what to try at this point, Bravo XS 25.5P with the extra cup,Bravo FS, or Pro Max, any suggestions?

    1. Ryan,
      Depending on your engine rpm at wide open throttle, let’s look at the pitch selections that might work for your set up. With the 25.5″ pitch, expect to gain 75 to 100 rpm over the 26″ pitch. You will also have the ability to maintain your trim and stay hooked up. The 26″, 27″ and 27.5″ pitches are all made from the same casting. You’ve already experienced the 26″ pitch. The 27″ offers additional cup over the 26″, lowering engine speed by 150 rpm. The 27.5″ pitch offers the most cup, reducing engine speed an additional 75 – 100 rpm.
      All the best,
      Scott

  158. I have a champion 203 with a 250proxs an tried all kind of props an cannot get my bow to lift at 5800 rpm I’m still dragging I wonder if your prop would work

    1. Brian,
      What kind of speed are you getting at 5800 rpm? Also – what style and pitch prop are you running?
      Thanks,
      Scott

  159. I have a 2011 nitro z7 with a 2014 200 proxs on it I run a 26 tempest 71-73 mph at 57-5800 also run a 25 fury 70mph at 5750 with same results the tempest has been worked and had extra cup added running a 2 inch below pad on 8 inch jack plate also have ran 26 trophy’s on it with the same 70-71 GPS speed do u think a promax would gain anymore speed and if so what pitch do I go with

    1. Jon,
      I wish I had some experience running the Pro Max on a Z7. The 25-inch pitch Pro Max would offer similar rpm to the 25-inch Fury. Hhowever – I’m not certain about the speed. Would the Pro Max allow for raising the engine .25” to .50” over your current height? If so – the added rpm will help with top speed. Again, I wish I had some experience running the Pro Max on your Nitro Z7.
      Have fun testing,
      Scott

  160. I have a 20xd with a 2000 300 promax sitting on a 12″ jack plate what would be the best promax prop pitch for me?

    1. Ben,
      Ideally – I’d like to know what you are currently running for a prop style and pitch – with top speed and rpm data as a bench mark. Also what gearcase and gear ratio are you running?
      Thanks,
      Scott

  161. How would this prop do on a glasstream 228te? Zuki225 w/ 2.29 gear. Just purchased boat used and it has a labb’d bravo28p. No vent holes. Slow out of the hole, and wot has 30%slip. I need help. I’m going to try a fury this weekend.

    1. Rick,
      Your engine prefers larger diameter props. Your slip might be coming from the Lab Finished Bravo I. The Lab version has lowered cups and this may contribute to the high slip. Consider running 2″ of pitch less than the standard Bravo I.
      Scott

  162. I have a simon motorsports tuned 90 opti producing around 125 with a 6200 rpm redline on a nitro 16.5 foot bass boat.
    Its a little rocket at 54 mph and ive got lots of oomph to turn a faster prop.
    Ive turned 23 trophies to 6200 @ 54.5 but hole was sluggish, 23 laser to 55 at 6000 with better hole shot and currently run the 22 for tournament loads full live wells and two guys at 53 @6200 rpms.

    Its hard to imagine so much high performance from the 1.5 combined with this rig that normally spins a 20″ laser to 5500 rpms at 43 mph.

    Could you envision me running a 24 of this prop on my rig, would it fit my gear case.
    Love watchin the big boys look at my pocket rocket dumfounded on the lakes 🙂

  163. Hi i have a 210 champ bass with 250 pro xs running a 27 bravoxs, looking for more lift for top end, hitting 5950 now, what would you reccomend in the pro max?

    1. Lee,
      Running the Pro Max, you should consider the 26″ pitch. Doing so will drop your engine speed by 50 to 75 rpm.
      Scott

  164. Juhu Scott… looking for help, as nobody in our whole country can tell me anything about this.

    I have a 275 Verado & 220 Baja Sport I´m rebuilding to land at 2900lbs including 30″ pushbacket bracket, CNC motor jack, fuel + driver…. ie. 250 lbs below normal.

    Did at normal weight 72mph on a 25″ pitch High Five prop. I think it could do better… However, my main interest is to have the thing making 40mph cruise with the best economics on a 2-4 person load. The High Five feels like it would be slipping quite a lot at Cruise…. efficient??

  165. I have an 1988 18′ Talon with a 1995 225 Pro Max CLE lower. Running a Merc Chopper worked to a 25″ ET cut. Don’t love the hole shot. Getting 74 GPS at 6200 rpm with 4 people. Thoughts on pitch and the Pro Max vs Lightning for top end?

    1. Matt,
      It’s hard to make a call on pitch because of the change in blade area and cup modifications to the Chopper. But I would lean toward the 24” pitch Pro Max. Top speed will probably be better with the 3 blade but getting there will be more fun with the 4 blade.
      Scott

  166. I have a 99 Triton TR21 with a 225 optimax I am currently running a 25p trophy to 71mph 5700 with a full load and a partner. I also run a 25p fury which runs 68 with a full load and a partner. How would the promax work on my setup and what pitch do you recommend? I am looking for more top end especially when i am not loaded down.

    1. Anthony,
      The Trophy is making good speed and – after running your numbers in the slip calculator – it’s showing low slip at 7.9%. With slip numbers that low, I’m not sure I would change a thing unless you had the chance to try a 24” pitch Pro Max.
      Scott

  167. SCOTT,
    I HAVE A 2014 NITRO Z-9,250 PRO XS(STANDARD GEAR CASE).10” ATLAS JP.4- BATTERIES. BOAT RUNS 70 MPH @5850ish RPM. RUNNING 25 TEMP PROP. vent plugs are wide open .1 CO-ANGLER AND FULL GEAR. 1/2 tank of fuel and 2-20 gal wells….out the hole is good…looking for a little bit better hole shot and top end.

    1. Keith,
      Hitting 70 mph @ 5850 with your set up is pretty good. The only thing that might improve it is the 26″ pitch Bravo I XS with with the engine raised another .75” to 1” (maybe more – need to test). Raising the engine usually offers another 75 to 100 rpm gain which should get you up to 72.5 mph. The higher engine height also offers quicker hole shot.
      Scott

  168. I see all these comments and they’re all primarily optimax motors. I know the prop is designed for the optimax but would it be a good choice for a 21xd bullet with a 250 pro xb ? If so what pitch ?

    1. Daniel,
      For sure it can be used with the Pro XB. It’s also used with our 400R Verado. If you are running a 1.75 gear ratio and can hit 6350 to do 88 mph. I wwould go for the 28” pitch.
      Scott

  169. I’m running a Cobra 201dc by viper boats. I’ve got a pro xs on an 8″ set back jack plate and turning a 25″ pitch tempest plus at 5900 rpms. Top speed is 79mph. I had a 26P Trophy plus that slowed me down. I also have a 10″ set back jp that I have not installed yet. Should I go with the 10″ jp and will this pro max pick me up? If so, what pitch should I go with in comparison to the 25p tempest plus?

    1. Chad,
      Placing your numbers into the Mercury Racing Propeller Slip Calculator App; (25″ pitch Tempest, 250 ProXS gear ratio of 1.75:1, 5900 rpm and 79 mph results with 1% slip. A boat like yours would normally achieve 6-7% at best. Almost seems like the prop has been modified to a 26″ pitch unless the tach is off. If all your numbers are accurate don’t change a thing.
      Scott

  170. I have a 2000 Checkmate Stiletto with 454 MAG MPI, Bravo 1 (1.50) sterndrive. Can the Pro Max be used on the sterndrive?
    Had ProCharger installed this winter 1st test was a 29 Tempest we hit the Rev limiter at 5150 RPM without even trim, 79 MPH (GPS). We are thinking 30P or 31P Bravo 1 but the low slip numbers on the Pro Max has me very interested.
    What are your thoughts the boat weighs 3,200 pounds and before the ProCharger ran 69.9 with a 25P Mirage.

  171. I run a Mirage with a 280 Mercury. I have tried Pro Et and ETs but nothing compares to the Pro Max.The boat lifts and has no hoop at any speed.The acceleration is great.My gas mileage improved by 6%.I would recommend this prop to all air entrapment owners.

  172. Hi Scott, I have a brand new Ranger Z519 with a 225 pro SX , Torq Master LU, 10″ HJP. I’m turning a 24P Fury @6K for 72MPH GPS. With me at (380lbs) and one 220lb passenger. Just one starting battery, half tank of gas, nothing else in boat.Would the Pro Max perform better, and what pitch would you recommend.

  173. Scott, I went out and did some accurate testing today, these are the numbers: Z519 Ranger, 225 Pro XS, TM lower unit (1.75/1), Mercury Fury 24″ pitch, prop shaft 3.25′ below pad, level trim, driver(385 lbs.), passenger(240 lbs.), Starter battery only, nothing else in boat. W.O.T.-5900 RPMs, 72.3 MPH (gps) Hole shot is good mid range seems good. Did not trim past level- starts to get squirrely Do you think it is possible to gain a little top end with a Pro Max prop? what pitch? Thanks for your time.

  174. Does this site still work? Is Scott still helping people with Prop.performance questions? It’s been 19 days sense I posted a question. No response yet. what gives?

      1. Thanks Scott for your input. I ran the boat early in the morning with an air temp around 80 or 81 this morning. W.O.T. 5900 with a gps speed at 72.7 – 72.8, according to the slip calculator, that’s only 5%! I think I’ll leave everything just like it is.

  175. Hello,

    I am repowering a 20′ Checkmate Pulsare (1400 LB hull dry)with a 225 Promax mounted to a 5.5″ CMC manual jackplate. I plan to start with the propshaft center 3.5″ below the pad. I am looking for a good all round prop that will pull skiers/tubers and have still have decent top end. I am considering the new Promax prop and want to be pitched to run as close as I can to the 6500 RPM max without banging into the 6750 rpm rev limiter on a regular basis. Would you recommend the 24 or 25 pitch Promax or something else all together?

    Thanks,

    Ben

    1. Benjamin,
      If you’re looking for an all around prop – particularly for skiing – consider the Bravo I XS. The correct pitch is difficult to determine without having your espected speed. I would think you’re close; between 24″ and 25″ pitch. Maybe go with the 24.5″ pitch Bravo I XS (part number 8M0111148).
      Scott

  176. Scott,

    I am currently running a 22′ Majek Exteme with a 250 SHO. Current prop set up is a 26 FXP running around 5700 to 5800 RPM’s @ 66-68 MPH depending on the load. The boat doesn’t seem to be getting enough lift and would like to gain some additonal speed. I am interested in the Bravo 1 FS or Pro Max in a 26 or 27 pitch and not sure which is the best route? Note I have to run with the jackplate all the way down or it losses speed and will not come out the hole. Any suggestions hoping to gain a few mph and smooth out the ride?

    Thank you,

    Shane

    1. Shane,
      Not certain which one to go with. Perhaps the 25” pitch Pro Max for a lighter set up and the 27” Bravo I FS for a heavier set up. Then there’s the Bravo I XC. The extra cup offers blade longevity. You will probably end up going with the 24” pitch (this is not a speed prop but a work horse prop). The 4 blade props usually offer a smoother ride.
      Scott

      1. I’m trying to prop my 22 Extreme with 250 SHO also. I have a worn 27P Bravo 1 FS. I turn it 5700 RPM and getting 68-69 MPH and has great holeshot. I want to try a 25P Promax too. I’m getting that Bravo refurbished right now to see what kind of numbers I can get with it when it’s not so sharp and worn. Let me know what prop you went with and your numbers! I’ll be curious to know! Thanks!

    1. Rodrigo,
      The hub kits are listed on the prop label. For the Mercury 1″ prop shaft use part number 835258K2. Go with part number 840389K06 for 1.25″ prop shafts.
      Scott

  177. Hi Scott

    Running 250 pro xs standard gearcase, 8″ JP with 24 Pitch Promax prop on a locally built 19.6 ft bass boat.The max speed achieved is 68 mph @ 5450 rpm.What would you suggest to get the rpm up?

    Regards Ivan

    1. Ivan,
      If running a 1.75 gear ratio, the tach might need to be checked. The numbers reflect an extremely low propeller slip at 3.92%. Typically, bass boats offer 7-12% slip. If we raise the slip from 3.92% to 9%, the rpm would come in at 5750.
      The engine’s recommended rpm range is 5500 to 6000. If the tach is accurate that prop style is very efficient. To reach 5500+ RPM, run a 23.5” Pro Max.
      Scott

  178. I have a Tempest Plus 12 x 21 w/1,75″ and 3 PVS open, 4.5 below PAD, on a OptiMax 250 that was put on a Nitro ZV21. This boat is a semi V, bass style that was aimed at the Great Lakes walleye tournament market. The boat will do 55MPH with a full tank, myself, and full gear, apx 4000 lbs as there are 5 batteries, and a 70 gal main tank, 10 gal kicker tank. and oil reservoir, all full. I want to get above 60 MPH with this rig, and do not want to go higher in HP due to bass tournament regs. The boat is rated to 350 HP.
    I have researched the Enertia ECO as a possibility, and would like your thoughts on a Pro Max . I run at 5750 rpm at 55mph with above load. Hole shot is about 9 to 10 seconds.

    1. Ed, I’m going to point you toward the Bravo I LT. With your engine and boat size, I think the LT’s longer barrel will offer enhanced boat control (flat planing, improved boat handling in big seas, and added bow lift at WOT for increased top-end speed). I appreciate you sharing your engine height. Keep the motor at the same height and run the 22” pitch. All PVS hole should be open.
      The Eco and Pro Max are great props but I’d pass on these for your set up. Eco offers a ton of lift and, into the wind, it ends up scrubbing speed, the Pro Max, with its small barrel, doesn’t work the greatest in big waves. You can’t control the boat as well as the Bravo I LT at slower speeds.
      Scott

  179. I have a 2200 te pathfinder with 250 sho running a 22p bravo 1 with hub cut. I sold all of my other props. Looking at the 22.5 or 23 promax turning bravo 5800-6000 60-63 mph. Can I turn the promax and what size would I need? Also, what would be the average gain would be? Also, is the lab promax really going to give me 100-200 rpm and how thin compared to a bravo?

    1. Dustin,
      If you’re running the standard Bravo with a shorter barrel, then the 22.5” Pro Max should be close in rpm. The Pro Max is a fast prop. It’s usually 2.5 mph faster than the Bravo I FS or XS but I’m not certain it’s the right style for your TE. You never never know until you try.
      Scott

  180. Scott,
    I am running a 2013 Bullet 21SS with a 250 pro xs and sport master gearcase. 28 bravo 1 xs, 14″ Bob’s jack plate 2.5 inches above pad Running 87.9-88.5 at 6150-6200. Looking to get a bit more out of it and maybe just good speed with tourney load. Do you think the Pro Max prop might be the ticket and if so, what pitch are you thinking. Holeshot is pretty good, I’m wanting my rpm’s a bit lower on top end. Thank you in advance.

    William Scott

    1. William,
      When comparing the Bravo I XS and the Pro Max; Pro Max typically puts up the better numbers. The Pro Max grabs and hooks up tighter – offering 2 to 3 mph more. The 28” Pro Max often lowers engine speed by 150 to 200 epm so it should put the engine speed where you want it. Back to the Bravo I XS. it’s hard to beat the overall performance of this prop.
      Scott

  181. Scott,
    I love the Pro Max! I’m running a labbed 30″ Pro Max on my lightweight Stoker 22 Mod-VP with 300X about 6500 RPM @ 102 MPH. (Elevation 2140′). I run the Sportmaster gearcase (prop centerline) 1-1/2″ above the center pod on a CMC jackplate w/ 5″ setback. The centerpod bottom also ends about a 7″ forward of the transom. I want to buy another labbed Pro Max as a spare prop, as it’s the best prop I’ve found for this hull.
    Question: Would I be likely to gain any top end horsepower and speed from going to a labbed 28″ Pro Max and achieving several hundred more RPM with the the 300X’s power band? Or would I just gain increased acceleration, which is not that important to me.
    Or: Since I am usually the only person in the boat (total weight of boat, motor, driver and fuel approximately 2100 pounds), would a labbed 32″ Pro Max be likely to offer any speed advantage, while decreasing RPM (and, of course, increasing planing time)for longer motor life?
    Thanks for your input,
    Lee King

    1. Lee,
      The sweet spot was 6300 to 6500 rpm. If you can swing the 32” pitch – you’ll drop approximately 300 rpm and the speed might come in at 103.4 mph. It’s really a tough call. The 28” pitch will increase engine speed by 300 rpm but you will see your speed drop to 99 mph. Have fun with your set up.
      Scott

      1. Scott,
        It would seem that a lab finished 31″ Pro Max might be ideal here, in terms of staying in the 300X’s RPM “sweet spot.” What are your thoughts?

        Can I purchase a Pro Finish 31″ and send it in to Mercury Racing for lab finishing? And, if so, what would that service cost, including shipping?

        Thanks again for your advice.
        Lee King

        1. Lee,
          A 31” pitch Lab Finished can done two ways; either by taking a 30” pitch casting and leaving more cup in the prop versus a 30” pitch Lab Finished. Or, using a 32” casting – reducing the cup more than the Lab 32”. Either way, you’re looking at 102 mph which is the same you’re getting with the Lab 30”. We don’t offer a service of turning a Pro Finished prop into Lab finished. Have fun.
          Scott

          1. Scott,
            Thanks. I’ll try a lab finished 32″ and let you know how it does later in the spring, once the ice & snow leave N. Idaho!
            Lee

  182. I recently tried a 25p Pro max on a Bass Cat pantera 3 with a 200 optimax. Mid range and top end it performed really well, but it blows out very bad out of the hole. Any advice?

    1. Mike,
      We have a control ring, part # 8M0086395, that enables some venting. Use it in conjunction with the PVS vent holes.
      Scott

  183. Would you please explain in detail the difference between the lab & pro finishes and what you may expect to see on the water… I am on the fence on which to purchase.

    1. John,
      Thanks for the question. Pro Finish refers to props finished by the professionals at Mercury Racing. Lab Finish means the props are finished in the laboratory at Mercury Racing, coined back in the 1970’s. The props are finished by the same group of well trained technicians. Both styles are finished to a blade thickness template. Both are zero balanced and both high polished as well. The biggest difference, is the leading edge thickness. The leading edge of the Lab Finished blades are much sharper and thinner than the Pro Finish blades. The Lab typically offers 100 to 150 rpm over the Pro which can lead to 1.5 mph increase. The goal with the Pro finish is a well performing, durable, efficient, out of the box bolt on prop at a lower price when compared to the Lab Finished prop. Lab Finished models are also designed to move up 2” of pitch over a standard prop, 1” over the Pro Finished. They truly are geared for getting the maximum top speed out of a rig.
      Scott

  184. Hello Scott, I’m telling you to buy a propeller Pro Max 48-8M0112981, step 22.5 and when I get the propeller I look at the box and have that code and say step 22.5, but in the propeller I look and it is crossed out And they put him winged 22,5 ie as they corrected or adulterated .-

    From already thank you very much
    regards
    Rodrigo

    1. Rodrigo,
      The 22.5″ pitch Pro Max is made from a 24″ pitch casting. So yes, we stamp out the 24 and stamp in 22.5.
      Scott

  185. I have a 2010 blazer 202 with a 250 proxs with a 15 inch jack plate and a 27p fury prop, my holeshot is not so great with a tournament load and even more so since I’ve added 2 power poles, I run 5900 to 6000rpms wot at 76-79 mph tournament load, what do you think would help with my holeshot and not affect my rpms and topend?

    1. Jared,
      The Pro Max is geared toward light to medium weight boats. It is typically is faster than the Bravo I XS in those applications. First thought is to start with the 27” Pro Max. However, with the Power Poles and tournament weight load – I would consider the Bravo I XS which was developed to support heavier loads. The 4 -blade lifts both bow and stern versus the 3-blade which typically lifts the blow only. The added lift usually results with a 2 mph increase with heavy loads. To achieve the same RPM as the Fury, move up to the 29” pitch XS. If you’re looking to gain 150 rpm, then run the 28” pitch. Keep in mind you’ll have to test your jack plate height. Move .75” higher than were you are with the Fury.
      Scott

  186. Hi Scott – I ran a Pro Max 28P pro finish for about 9 months on my 21 Liberator tunnel with a 300XS (1.75 gears). Max speed 91 mph @ 6,500 rpm (on smart craft)—maybe 6,400 with 0 trim. The prop pulls like a banshee, corners great, and runs fast. Hole shot is like others have described but I just throttle up and it planes fine with the 300XS torque.

    I have sold the 28 since I’m obviously too high in rpm. I’d like to be in the power band – 5,800 to 6,200 (preferably around 6,000 or 6,100).
    My math has me at 6,200 with 30P pro, 6,050 with 31P pro, 5,900 with 32P pro and 6,050 with a 32P LAB (based on the extra 150 revs on lab finish).

    I usually only run with 2 of us and a relatively light load. Objectives are tons of mid range punch and top speed but I don’t want a prop that will break under normal use. Which prop makes the most sense – I would like to go with the LAB finish if it will do what I need. Is the lab finish durable enough to not sling blades?

    Thanks for all your work with these props. I loved the 28. Just need to optimize. I got pretty close on the 28p and it was the first prop I tried on that boat.
    Kevin

    1. Kevin,
      It’s surprising you can rev the engine to 6500. If the tach is accurate then your math is good as a reference point. With the 30” pitch at 6200 rpm we could see 93 mph. The 31” will get you to 6050 rpm and potentially 93.8 mph. The 32” prop will result with 5900 rpm and a top speed of 94.4. The Lab Finished version has less cup in the prop. I’m not certain that would be the way to go. It could. You need to try it to find out.
      Have fun.
      Scott

  187. I have had a 28 Promax Pro finish on order since early August. The wait is killing me. I have been hearing such good things about this prop on XB21’s

    I read above that the 22 P is modified from a 24 casting.

    Just curious which casting is used for the 28? I am also curious about which casting is used for the 30/31 P as that would be my next purchase if the 28 performs as I expected…

    1. Nathan,
      Sorry about the wait. It’s been a heck of a busy season. The 22.5″ – 24″ pitch are made from the 24″ casting, 28 is made from the 28″ pitch casting, 30 made from the 30″ pitch casting and the 31 made from the 32″ pitch casting.
      Scott

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