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  1. #1
    Registered
    Join Date
    Apr 2011
    Posts
    36

    New Prop Help Please..

    Just finished up getting the motors freshened up. Now I want to see about getting some new props to get some more top end out of her without having to turn the motor 6000rpms. As of now @5000rpms the boat on GPS will 65-68mph.. I would like to do 75mph top@5500rpms. I have 3 blade props now? Any help will be appreciated. The boat is a 35ft Fountain Lightning with twin 468ci. BBChevy Engines. Appx. 1100hp combined.

    Chris
    Last edited by Chris@HPS; 06-24-2011 at 11:38 AM.

  2. #2
    Offshoreonly Advertiser Offshoreonly Advertiser bbladesprops's Avatar
    Join Date
    Jun 2003
    Location
    Princeton, Wisconsin
    Posts
    3,307

    Smile

    The particular model of propeller you currently have and the gear ratio you have will help us to make the best suggestion.
    I think you may end up with 4 blade propellers.
    Call or email us and we can get you some test propellers.

    Brett
    Brett Anderson / BBLADES Professional Propellers
    920-295-4435 http://www.bblades.com/

  3. #3
    Registered
    Join Date
    Apr 2011
    Posts
    36
    The #'s on the props are

    Quicksilver 48 13704 A40 23P. These are 3 Blade Props

    Not sure on the gear ratio. The outdrives are Bravo ones however.

    Hope this helps. Thanks for your help,

    Chris

  4. #4
    Offshoreonly Advertiser Offshoreonly Advertiser bbladesprops's Avatar
    Join Date
    Jun 2003
    Location
    Princeton, Wisconsin
    Posts
    3,307

    Smile

    Yoyr slip % looks to be low with these propellers. I'd Lab Finish these to gain 300 rpm and take the speed that comes with that.

    Brett
    Brett Anderson / BBLADES Professional Propellers
    920-295-4435 http://www.bblades.com/


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