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  1. #1
    Registered ccarloss's Avatar
    My Boats:
    Sunsation 32 Dominator
    Join Date
    May 2002
    Pasadena, MD

    Question Affects of weight and humidity on speed??

    Since it is near impossible to test things under the exact same conditions, are there a few “rule of thumb” formulas for seeing the affect of humidity, weight, and RPM on MPH? Basically how do each of these affect MPH? **FOR EXAMPLE ONLY** - for every 10% increase in humidity you will lose 20hp, or every 100lbs = a loss or gain of 1mph. For every 100RPM’s you will lose or gain 1mph.

  2. #2
    bobby daniels
    HUMinity takes the avalable oxgen out of the air and makes the mixture rich and there goes your power ,weight depend on hull !!

  3. #3
    Registered HyperBaja's Avatar
    My Boats:
    1990 Baja 190 DSR
    Join Date
    Sep 2002
    Lewis Center, Ohio
    100lb for 1 mph.....2500/100=25. I might actually run 75

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