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Schrade · 02-12-2014

I think I've read that bigger pipes allow the gasses to cool quicker. And cooler gasses are heavier.

If so, more 'power' is needed to push the heavier mass to the rear.

Is there some additional theory here?

Turbulence? Laminar flow?

Header wrap to retain the gasses' heat?

At what point is the resonator restriction inlet of '90 overcome with bigger pipes? What size???

ed.:
How much torque did you lose on those machines there Ed? Did you ever get dyno graphs before and after?

02-12-2014	#58
Schrade Join Date: Dec 2012 Location: NC Posts: 1,783	Re: Headers & exhaust I think I've read that bigger pipes allow the gasses to cool quicker. And cooler gasses are heavier. If so, more 'power' is needed to push the heavier mass to the rear. Is there some additional theory here? Turbulence? Laminar flow? Header wrap to retain the gasses' heat? At what point is the resonator restriction inlet of '90 overcome with bigger pipes? What size??? ed.: How much torque did you lose on those machines there Ed? Did you ever get dyno graphs before and after? Last edited by Schrade; 02-12-2014 at 09:42 AM.