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Old 04-17-2013, 06:34 PM   #32
Tom Wesenberg
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Join Date: May 2010
Location: Mpls, MN
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Default Re: not enough backpressure?

Quote:
Originally Posted by marc hildebrant View Post
Backpressure is needed on engines that have "tuned" exhaust systems. Often times with high performance motors the exhaust system is a significant part of getting the high performance from the motor, but, lets not regard the Model A standard motor as a "high performance" racing engine.....

Also, with the tuned motor the performance is limited to specific RPM values.

Smokey Y. wrote a great book in the past about the methods used to tune the motor, I really do not think that this is relevant for the Model A !

Marc
Geez Marc, you just dashed all my hopes!
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