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Thread: which prop bravo 1 ???

  1. #1
    sk1981
    I have a SR 21ft advantage. previous motor was a 425hp 454 with a 23p mirage and a 22p bravo 1 prop. Will be replacing motor with a 625hp 540 ci motor and need some suggesions for prop sizes. the 23 topped at 70mph and the 22p topped at 62mph. looking for mid 80's to low 90"s.

  2. #2
    Chuckles
    Try this as a starting point, put in your old numbers and them start changing to new power and prop pitches
    http://www.go-fast.com/Prop_Slip_Calculator.htm

  3. #3
    sk1981
    thank you for the site..... really helped

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