Effect of ported stock exhaust manifold on spool up

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Jan 16, 2008 | 04:40 PM

#31

PSI NRG

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From: Solon, OH

I have an 05 with a dnp tubular manifold with a dnp 02 housing as well and my car spools up way faster then my buddies 03 hes running the cast manifold.

Jan 16, 2008 | 10:00 PM

#32

RevMoto

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From: Boca Raton

Quote:

Originally Posted by PSI NRG

I have an 05 with a dnp tubular manifold with a dnp 02 housing as well and my car spools up way faster then my buddies 03 hes running the cast manifold.

That 02 housing caused that.

Jan 17, 2008 | 11:42 AM

#33

Boltz.

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From: St. Charles, IL

Quote:

Originally Posted by spdracerut

Coating? I'd say that if you're drag racing it's probably not worth it. But for a track car, keeping heat in the manifold means that heat isn't heating something else up, like everything else in the engine bay.

NO, Im talking about port matching and polishing.