Ported intake - ZR-1 Net Registry Forums

LGAFF · 06-28-2011

-Coolant is blocked off so that you can take the top of the plenum off without draining the radiator every time.

-As it stands the head to face area should match up to your stock, I only opened them to 32-33mm..some were as small as 31mm I can open them to 35-36mm at the face based on Jerrys Gaskets, then you can port match if you want......

-My car has 391 RWHP with a generic DRM chip, headers, Borla, and no cats

-Most see a 25rwhp gain(locobob leaves stock size on the primaries and even on ones with no port match show good results)

06-28-2011	#10
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Ported intake -Coolant is blocked off so that you can take the top of the plenum off without draining the radiator every time. -As it stands the head to face area should match up to your stock, I only opened them to 32-33mm..some were as small as 31mm I can open them to 35-36mm at the face based on Jerrys Gaskets, then you can port match if you want...... -My car has 391 RWHP with a generic DRM chip, headers, Borla, and no cats -Most see a 25rwhp gain(locobob leaves stock size on the primaries and even on ones with no port match show good results) __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359