P & IH & TB porting - ZR-1 Net Registry Forums

Nick · 04-11-2008

You may notice some seat-of-the-pants difference, especially so in the 90-92 cars. Port work on the 405 horse later models doesn't make as much of a difference as it does in the 375 horse earlier models. The great equalizer in both is port work to the plenum and injector housings coupled with a set of long tube headers and a tune.

04-11-2008	#1
Nick Join Date: Jul 2005 Location: Auburn, Washington Posts: 585	Re: P & IH & TB porting You may notice some seat-of-the-pants difference, especially so in the 90-92 cars. Port work on the 405 horse later models doesn't make as much of a difference as it does in the 375 horse earlier models. The great equalizer in both is port work to the plenum and injector housings coupled with a set of long tube headers and a tune.