Prop Data

Mich H20s

Cadet
Joined
Jul 11, 2004
Messages
27
What sort of performance differences can I expect by switching from a SS 13.5x25 4 blade to a SS 14.25x25 3 blade? '96 John 150 - 18.5' Bass boat
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: Prop Data

It depends on a several things. <br /><br />Are you talking about the same brand / style props or different?<br /><br />3 and 4 blade props generally run best at different X dimensions. Are you using a jackplate? Is the 4 blade dialed in perfectly now?
 

Mich H20s

Cadet
Joined
Jul 11, 2004
Messages
27
Re: Prop Data

The current 4 blade is need of replacing, I found a used and affordable 3 blade afforementioned prop. Original prop factory renegade, replacement is "Rapture Brand". No Jackplate and the original 4 blade dialed in real good.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: Prop Data

Comparing a Rapture to a Renagade is not apples to apples. We dont know what "dialed in real good" means with out some numbers but I'd be willing to bet the Renagade bites better than a Rapture.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: Prop Data

If you'll post your numbers (top rpm and accurate speed) we'll run them and see where your slip percentage is now. <br /><br />Never hurts to establish a good baseline. We like to do it with an average load.
 
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