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New Prop Help Please..

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Old 06-24-2011, 09:10 AM
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Default 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 [email protected] 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 Chri[email protected]; 06-24-2011 at 10:38 AM.
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Old 06-27-2011, 08:00 PM
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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
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Old 06-29-2011, 08:36 AM
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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
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Old 06-29-2011, 06:01 PM
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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.

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