What's your cruise RPM?
#1
Semper Fi
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What's your cruise RPM?
What is your cruise RPM and speed? Currently I have a 21' with a 5.8l and I cruise 30 mph @3000 rpm. I would like my next boat to cruise at 50 mph under 3500 rpm. How much harder is it on the engine to cruise at 4k vs. 3k?
thanks,
Rob
thanks,
Rob
#4
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#5
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I like to cruise at 3200 45-46 mph 4000 58-59 mph.
#9
10x
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3500 rpm = 70 mph. 17 X 31 4 blade prop, 1.33 drive ratio.
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Fountain powerboats rule "The Preacher"
Chicago Powerboat Club Director
[email protected]
www.chicagopowerboat.com