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Old 10-27-2010, 11:14 AM
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koopesv
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Originally Posted by FLHX1550 View Post
It also depends on what you are looking for out of the engine you are trying to tune.

There is no "best" pipe for any engine, it's like assuming there is a tire out there that works as good on a loam rough track as it does on a blue groove track.

The pipe itself is just a determined length. Depending on the engine it is going on, it could add low end power to one engine, and top end power to another. It is the relationship of the port timing to the length of the end of the expansion chamber.

You can use different length headers, or spacers between the header and pipe to change the powerband also.


http://en.wikipedia.org/wiki/Expansion_chamber
Thats some good stuff, probally have to read it twice
thanks for info
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