View Single Post
Old 06-01-2009, 11:34 AM   #39
Scooby Guru
Member#: 32669
Join Date: Feb 2003
Chapter/Region: SCIC
Location: Woodland Hills
2007 2.34LR, EFR7670
LINK G4 hybrid STi


Originally Posted by unclemat View Post
So it seems that most folks who port their stock manifolds are actually hurting their performance (most run < 400 whp setups anyway).
Porting a stock manifold has a insignificant effect on runner or plenum volume and no effect on runner length so no I don't see how that could adversely affect performance.

The Cosworth mani changes all of the variables
* Registered users of the site do not see these ads.
kellygnsd is offline   Reply With Quote