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Chainsaw
Why do bike motors make so much more power?
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<blockquote data-quote="jar944" data-source="post: 5182190" data-attributes="member: 118224"><p>Its the pipe mostly. </p><p></p><p>The aprilia factory engineers tested their RAS125 without the pipe and with re-optimized jetting. results 54hp with the pipe, 18 hp w/o</p><p></p><p>The short stroke and short rod also hurt power output, then the air cooling brings down the max power as well.</p></blockquote><p></p>
[QUOTE="jar944, post: 5182190, member: 118224"] Its the pipe mostly. The aprilia factory engineers tested their RAS125 without the pipe and with re-optimized jetting. results 54hp with the pipe, 18 hp w/o The short stroke and short rod also hurt power output, then the air cooling brings down the max power as well. [/QUOTE]
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