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Old 05-03-2014, 09:37 AM
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The_Aleman The_Aleman is offline
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Join Date: Jul 2008
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Default Re: Standard Horepower?

Originally Posted by Theon View Post
A well designed expansion chamber will give better top end, an off the shelf expansion chamber is more likely to give better low to mid.
That's a bit overgeneralizing. It depends on the expansion chamber. An "off the shelf" exhaust can give more average power than a supposed
"well-designed" one. 2-stroke power output is really all relative and subjective to the user's needs.

Real HP increase is through revs, HP = torque x revs.
HP is a number derived from the solution (torque * RPM / 5252). HP is not derived from revs, it is derived from torque at any RPM.

Torque does the real-world work. An expansion chamber isn't even necessary. High RPM HP often just wears an engine out quicker.
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