Thread: Exhaust size and velocity
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10-19-2006 08:20 AM #1
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Exhaust size and velocity
65cayne's post got me thinking - watch out!
What is the rule of thumb for header/exhaust diameter?
Too small - air throughput is restricted.
Too big - velocity is reduced.
I would think the ideal diameter is a function of actual CFM througput.
Or perhaps the target is an ideal velocity that is a function of CFM and diameter.There is no limit to what a man can do . . . if he doesn't mind who gets the credit. (Ronald Reagan)
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Could it be a 10114182? If so, it is a Gen V 454, 4 bolt 1991 (or later). Hope that helps..
GM Engine de-coding