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XfireZ51 · 04-27-2010

FR,

"I find all this talk rather interesting. On my Stingray, I have SPD build a choke into my collectors on purpose. This one is identical, Divergent & Convergent angles, to the ones on my Stingray, I just have an extra set for dynoing only as the ones on my Stingray are welded to the exhaust."

It's clear that the choke illustrated by your header collector is gradual and represents a single point. My constriction, OTOH, is more abrupt and significantly longer length. It just doesn't make sense to me that this isn't affecting performance coming from the left side of the motor. I'm willing to listen since addressing this is gonna cost a few bucks to eliminate.

04-27-2010	#4
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,686	Re: Constricted Header Collector? FR, "I find all this talk rather interesting. On my Stingray, I have SPD build a choke into my collectors on purpose. This one is identical, Divergent & Convergent angles, to the ones on my Stingray, I just have an extra set for dynoing only as the ones on my Stingray are welded to the exhaust." It's clear that the choke illustrated by your header collector is gradual and represents a single point. My constriction, OTOH, is more abrupt and significantly longer length. It just doesn't make sense to me that this isn't affecting performance coming from the left side of the motor. I'm willing to listen since addressing this is gonna cost a few bucks to eliminate.