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berns29scarab

07-06-2005 08:37 AM

difference in gear ratio's

I'm running 15x32 3 blades at 6400 rpms @ WOT with 20" sporty lowers and 1.62's. what would happen if i converted to 1.75's ? the engines are 300x's

bbladesprops

07-06-2005 09:27 AM

Re: difference in gear ratio's

Hi,

Your rpms will go up to around 6700, throttle response would improve, planing would be quicker, speed would be about the same or slightly less.

Mainly, improved throttle response.

berns29scarab

07-06-2005 07:34 PM

Re: difference in gear ratio's

thank you...a friend of mine just went the opposite way in an I/O boat. went from 1.50's to 1.35's and lost 700 rpms.

dan lawrence

07-08-2005 05:07 AM

Re: difference in gear ratio's

spectre boy,

listen to brett

he knows all!

dan

SCRAPMAN1

07-08-2005 12:04 PM

Re: difference in gear ratio's

Dan You Are A Boat Freak! Its 5 In The A.m.- Get Some Sleep Will Ya! :d :d :d

SCRAPMAN1

07-08-2005 12:06 PM

Re: difference in gear ratio's

Dan You Are A Boat Freak! Its 5 In The A.m.- Get Some Sleep Will Ya! :d :d :d
Billy

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