Offshoreonly.com - Prop slip

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vintage chromoly

02-25-2016 09:06 PM

Quote:

Originally Posted by getrdunn (Post 4408612)

Did you change the x dim? Sounds like you have it right on

It was a Volvo 280 boat. I put it at 17.5 per Jo at pantera.

vintage chromoly

02-25-2016 09:06 PM

Bravo 1 drive now. Mr. Gadgets has the drive at present.

Griff

02-26-2016 01:00 AM

12-14% slip after the prop is dialed in would be realistic.

class6

02-26-2016 05:02 AM

I am at 10% or less depending on which prop. And what number you use for the B1s. Corrected or not

endeavour32

02-26-2016 07:07 AM

Good point^^^^^^^^
For a 26 pitch Bravo use 25.3 not 26.

getrdunn

02-26-2016 09:18 AM

Gonna need more prop if that engine is anywhere near close to 650 hp. Hang on tight.

vintage chromoly

02-26-2016 09:24 AM

Quote:

Originally Posted by getrdunn (Post 4408740)

Gonna need more prop if that engine is anywhere near close to 650 hp. Hang on tight.

BBlades recommended the 26 bravo 1 with all the info I gave him.

With my luck, I'm sure It won't be that easy.

Boatally Insane

02-26-2016 01:59 PM

I have an '84 Corsa. 26x7 hull. X is 18.5".
Ran 68 mph at 5300 rpm with a 24 Bravo
Runs 67 mph at 4800 rpm with a 26 Bravo

So, roughly 12% slip..

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