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Thread: Right prop?

  1. #1
    U.T.B.A.V-Drive man
    28 foot Warlock deck boat. Anyone else with a 28 foot deck boat. WHAT SIZE PROP DO YOU HAVE ? I've been fighting this problem for too long. I borrowed a 22 pitch Bravo 1. It got the boat up to 5100 rpm,still need 300 more rpm's, and it was lazy getting on plane. I have a Hydromotive P-5 25 pitch that will only take the boat to 4100 rpm. I can return the Hydromotive for a different one, once I figure out which one is right. As I said before the X dimension is too low, but that is a major fix. I looked into buying a shorty. (BIG BUCKS). Any thoughts
    Jim

  2. #2
    phebus
    You could get that 22 labbed, and get the rpm you want, but rather than throw it out to this forum for answers, I would call a quality prop shop, and tell them what I was running, and get their professional advice.
    Just because someone else has good results with a particular prop doesn't mean it will work good for you. Motor, boat load, elevation, temp, etc. plays a big part, and someone else's results may not apply to you.

  3. #3
    U.T.B.A.V-Drive man
    You could get that 22 labbed, and get the rpm you want, but rather than throw it out to this forum for answers, I would call a quality prop shop, and tell them what I was running, and get their professional advice.
    Just because someone else has good results with a particular prop doesn't mean it will work good for you. Motor, boat load, elevation, temp, etc. plays a big part, and someone else's results may not apply to you.
    phebus, I've talked to so called experts, and have a differant answer from each one. I did submit a e-mail to Bam & Mercury with the details, but haven't herd back from them yet. I thought maybe someone had a 5000 lb deck boat that could give me a clue. Thanks Jim

  4. #4
    dicudmore
    a little more info like what you have in the boat for power might help us offer guidance :wink:

  5. #5
    dicudmore
    if you're not getting the RPM with a 22 then perhaps you need to step down 1 more size :idea:

  6. #6
    U.T.B.A.V-Drive man
    a little more info like what you have in the boat for power might help us offer guidance :wink:
    HP 500 modified to 550 hp. XZ drive 1.50.

  7. #7
    phebus
    If you can return the Hydromotive, and exchange it for another, I would call Throttle Up, and talk to Julie. My bet is, that given all the info, she could get you propped pretty close to right on.

  8. #8
    phebus
    What elevation is LOTO at? I would think a 28 deck with 550hp could turn bigger than a 22" prop.

  9. #9
    U.T.B.A.V-Drive man
    What elevation is LOTO at? I would think a 28 deck with 550hp could turn bigger than a 22" prop.
    Elevation is 660. I agree bigger then 22, The drive came with a 28 Bravo, but had a hard time getting the boat on plan. I had to steer it back and forth to get some air or it would pull the motor down so bad it would make all kinds of funny noises, (back fire through the carb) Went to a 26, a little better. Now I'm at a 22. One expert said go with a 23 Mirage plus.

  10. #10
    phebus
    I would have a mechanic check your engine before getting a new prop. Something just doesn't sound right to me.

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