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tgersx

08-21-2008 12:09 PM

changing pitch?

i'm currently running 30x17.5 (5) blades and can spin them to about 5900-6000rpms at about 100-102mph, i would like to lower my rpm to about 5600rpm where my peak hp is. should i go to a 31pitch and will it effect my speed?

spilman

08-23-2008 11:34 PM

every 1 inch of pitch equals approx. 200rpms..try a 32"....that being said,every set up is diiferent;but that should be close to 5600rpms

BY U BOY

08-24-2008 09:53 PM

I was always under the impression that you wanted to have a few 100 Rpm's over where your peak HP was.

spilman

08-24-2008 10:02 PM

Quote:

Originally Posted by tgersx (Post 2659702)

If you can turn the 32's 5600rpm's then get em' labbed,5750-5800 labbed should get you to 105!

bbladesprops

08-25-2008 07:50 PM

Up the pitch and work them from there.

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