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  1. #1
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    prop for torque rpm or horsepower rpm?

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  3. #2
    northern member Canuc's Avatar
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    more info needed , race , cruise , fishin ? i like an engine to get close to it's peak hp rpm .
    Quote Originally Posted by gn7 If your ran a cammer your odds of finishing WERE ZERO.

  4. #3
    Or Seth, either one Budweiser's Avatar
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    I don't think there's anyone here that wouldn't prop for peak horsepower.

    Not 100% sure, but I think even 50 foot twin diesel cruisers do the same.

    I can't think of doing it any other way unless a huge percentage of running time is at idle and you're trying to tailor it's operating characteristics somehow.
    Quote Originally Posted by Nice Pair View Post
    Little kids play hooky .... big kids play "HOOKIE"

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    Senior Member EVILFORCE's Avatar
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    I think a lot depends on your drive. I do not think you want to turn a Bravo 1 7000 rpm if that is where you make your power. I would keep it under 6000 max myself.
    No Fool Like A Old Fool is there?

  6. #5
    northern member Canuc's Avatar
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    a lot of people like to overprop on a cruiser thinkin it's more efficient and easier on the engine . hard to get one prop thats going to be the best for everything on the same boat .
    Quote Originally Posted by gn7 If your ran a cammer your odds of finishing WERE ZERO.

  7. #6
    gn7
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    Prop'ing for max torque is great for testing the strength of your entire rotating assembly. Specially the crank.
    LINK:GN-RACING.COM

    "there are too many pigs for the teats"
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  8. #7
    cfm
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    Peak hp or just a few hundred rpm under to give you some wiggle room on conditions/passengers/etc.

    Propping for peak tq will usually make the boat a slug and be hard on parts.

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