prop sizing help needed
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prop sizing help needed

  1. #1
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    Default prop sizing help needed

    Hello Everyone. So I Got A New To Me Boat And Need Some Prop Sizing Help. The Boat Is A 1996 Ultimate Warlock
    210 LXI. 21 Ft. OpenBow. Fully Loaded Around 3300 Lb. 383 Stroker Fuel Injected. And A Alpha One GeN 2 1.47 Ratio..Engine Wot 5000. I Want A Good All Around Prop. Has A 21 High 5 On It Now And I Hate It... Any Help Would Be Greatly Appreciated. Thx.....
    Last edited by Michaelv; 03-28-2014 at 11:24 AM.

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    Quote Originally Posted by Michaelv View Post
    Hello Everyone. So I Got A New To Me Boat And Need Some Prop Sizing Help. The Boat Is A 1996 Ultimate Warlock
    210 LXI. 21 Ft. OpenBow. Fully Loaded Around 3300 Lb. 383 Stroker Fuel Injected. And A Alpha One GeN 2 1.47 Ratio..Engine Wot 5000. I Want A Good All Around Prop. Has A 21 High 5 On It Now And I Hate It... Any Help Would Be Greatly Appreciated. Thx.....
    What don't you like about the prop, how many RPM @ WOT

    Does the exhaust exit thru the prop ?

    Do you have trouble coming on plane ?
    If you ain't the lead dog the view is always the same !

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    Gets on plane slow. Wot around 5700. Cavitates turning. The high five is a 13 5/8 dia. Iam thinking bigger....going through the hull exhaust...
    Last edited by Michaelv; 03-28-2014 at 10:02 PM.

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  6. #4
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    Quote Originally Posted by Michaelv View Post
    Gets on plane slow. Wot around 5700. Cavitates turning. The high five is a 13 5/8 dia. Iam thinking bigger....going through the hull exhaust...
    With a bow rider style hull you need a greater bow lifting prop.

    A 4 blade stainless prop with a larger diameter should work better

    Ron Hill Propellers has a few nice props that might work well for you
    1 714 855 2986

    Here a prop slip calc link from merc Prop Slip Calculator | Propellers | Mercury Racing
    If you ain't the lead dog the view is always the same !

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