What's you're opinion... stroke vs. bore

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03-03-2015 | 03:58 PM

#81

tad117

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Joined: Jun 2013

Posts: 22

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Quote:

Originally Posted by adk61

ok true all that but keep in mind this is a boating forum... its assumed that 6000rpm is tops... maybe 6500 in certain applications... not a 10,000 rpm prostock engine... apples to apples

But why is that the case is it prop efficiency too long to get the motor in the power band worried about spinning the motor at high rpms for extended periods of time.

03-03-2015 | 04:13 PM

#82

Black Baja

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Joined: Aug 2011

Posts: 2,733

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From: bel air, md

Quote:

Originally Posted by tad117

But why is that the case is it prop efficiency too long to get the motor in the power band worried about spinning the motor at high rpms for extended periods of time.

They don't want to spend triple on the valvetrain to make it work. And after the initial cost it's much more maintenance.