drive gear ratio and prop size
07-02-2012 | 09:56 PM
#1
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drive gear ratio and prop size
I have a 1.50:1 drive ratio with 26p 4 blade prop on my scarab 29 with single 454 w/b&m 250 blower arond 650-700 hp i want to have the best cruise and top speed. What change can i expect with a 1.36:1 drive ratio?? Better cruise or top end speed?
What can i benefit or loose??
What can i benefit or loose??
07-05-2012 | 07:55 PM
#2
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Joined: Jun 2003
Posts: 3,878
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From: Princeton, Wisconsin
Your speed will most likey not change.
Your cruise might grow slightly.
R's will drop 300-400
Why change g.r.? I'd keep the 1.5:1 and play with props.
B
Your cruise might grow slightly.
R's will drop 300-400
Why change g.r.? I'd keep the 1.5:1 and play with props.
B
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Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
Brett Anderson / BBLADES Professional Propellers
920-295-4435 http://www.bblades.com/
[email protected]
07-05-2012 | 08:44 PM
#3
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Joined: Jul 2004
Posts: 11,332
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From: chicago
07-05-2012 | 10:29 PM
#4
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Joined: May 2012
Posts: 1,175
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From: Highland Village TX
Here is a prop calculator http://www.rbbi.com/folders/prop/propcalc.htm, this was given to me by articfriends. He is a good one to talk to, very knowledgeable! Hope this helps!
