new prop question
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new prop question

  1. #1
    Senior Member infotraker's Avatar
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    Smile new prop question

    Since I wrecked the prop plus more I have aprop question. Running 77 sanger pickle fork ski hydro, inboard rudder, 468 bbc, tunnel,roller motor. Previous prop was stellings 11 1/2 15, top rpm 7k. Is that a good size or should I look at something different. I think gears are 22 but not sure. Any ideas ?

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  3. #2
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    Default Prop Size

    The diameter of 11 1/2 inches is good for your hull. I would recommend that you change from the elephant ear 15 inch pitch prop to a 17 inch pitch medium blade cleaver prop. You should get better low end slipage and transom lift with that prop.

  4. #3
    Senior Member infotraker's Avatar
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    Default prop change

    if i change to a 17 inch pitch cleaver prop do i have to change any thing else (gears) ?

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  6. #4
    Senior Member infotraker's Avatar
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    Default Stellings strut

    Finally brother got the last damaged part off the hydro. Have a stellings 10 strut. Does that 10 mean 10 degrees and where can i get a new strut ? Ron Braaksma will make one for $750, any other choice ?

  7. #5
    Just Me snoc653's Avatar
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    Default

    JJ can make you one. JJ Beaverfab

  8. #6
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    Default Cleaver Prop vs Gears

    I like to setup all normally aspirated engines on single prop hydro's with a 17 pitch cleaver prop and 22 gears. Watching your hydro run at CFW looks like you should run that combination. If you had a lot of horsepower then you could increase the overdrive. You said you need to replace the 10 degree strut? Is the strut (steel or bronze) bent or broken? Possibly you could have it straightened if only bent, much cheaper than a new strut. If you were going for a new strut then you would want to change the strut degree closer to 6/7 degrees which would require you moving the v-drive. Hope top see you out at CFW during the year.

  9. #7
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    Default

    You need a 3/B cleaver 16 pitch on your inside rudder hydro because your prop is way under the boat like a flat bottom and a 2/B does not have enough leverage to get the tail up quickly. You will gain 10 MPH in the quarter mile from a 2/B to a 3/B.----PALHAL

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