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Thread: need gears

  1. #1
    JETEATER
    Need a set of 35 12* :2purples:

  2. #2
    Fiat48
    Don't set your sights too high on 35's. 32's and 37's are out there but very few guys had 35's. They were odd ball.

  3. #3
    JETEATER
    Need a set of 35 12* :2purples:
    How about 28s or 30s
    I have 18s right now and i am spinning the motor a little to high. :idea:

  4. #4
    Fiat48
    22,25,29,32,37,40. That's how they go. And roughly figure 400 rpm drop per gear step up. Ballpark.

  5. #5
    JETEATER
    How about 28s or 30s
    I have 18s right now and i am spinning the motor a little to high. :idea:
    Then i think i need to start around 25s
    Anybody have any of those.

  6. #6
    78Eliminator
    Then i think i need to start around 25s
    Anybody have any of those.
    Check with Beaverfab.

  7. #7
    AzMandella
    What size engine?How many RPM's are you turning now?and what prop?

  8. #8
    Senior Member
    Join Date
    Feb 2009
    Posts
    1,543
    I have a set of 12 degree 29's (i think thats what they are)

  9. #9
    JETEATER
    I have a 21' Horizon it has a 455 olds 60 over puts out 550hp.
    All parts from Mondello.
    It has 18* gears right now. The prop is a 12.25X15 2 blade.
    The rpms are 5500 at 68mph.gps
    I would like two drop the rpms alittle i don't like to spin it that hard . :jawdrop:

  10. #10
    superdave013
    your next choice is 22%. Your boat will be a lasy dog with those in there. Looks like you are about right for the 455 you have.

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