View Single Post
930gt-40r 930gt-40r is offline
Registered User
930gt-40r's Avatar
Join Date: Jan 2007
Location: Boca Raton, FL
Posts: 2,063
Well on my application the 1.75" primaries helped out big time, but that is with a whole host of other modifications as well. The 1.625 primaries were striaght choking my motor up- but thats due to increased displacement, porting, and cams. I am not lying when I say that the car spools like 5-600 rpm faster on the same tune.
Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 08-10-2010, 02:42 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)