Prop Question
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Prop Question

  1. #1
    Senior Member The Violater's Avatar
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    Aug 2008
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    Default Prop Question

    I have a 21 Spectra with the bottom reworked and the strut moved forward. Has a 10 in. 15 pitch 3 blade with a blown 572 and 52 gears, just 'melts' the prop from a dead, don't have much clearance under the boat for a bigger diameter prop only about 1/2 to 3/4 inch clearance from the bottom of the boat and the prop ear. Suggestions ??? Need something with more 'bite'. From 50 mph up the boat drives great, handles great and goes triple digits no problem. Just need it to 'hook up' better when I punch it at lower speeds.
    Last edited by The Violater; 09-02-2013 at 06:08 PM.
    / The Few The Proud TheBlown

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  3. #2
    Senior Member
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    Are you sure the prop is only 10" dia. , never heard of anyone using a prop that small on a 21' Spectra/Howard. I have used a 11 1/4" dia 2 blade on my Howard with good results. Have used up to 12" dia,(12" is too big, manhandles the boat), but it does better with the 11 1/4 to 11 1/2. You can get away with as little as 1/2" clearance between the blade and bottom. I don't like to stand on it hard from a dead, it just cavitates any of the props I've used even in high gear, (turbo 400).
    Last edited by VD Cruiser; 09-03-2013 at 04:55 PM.

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