Performance Modifications for 1991 ZR1 - ZR-1 Net Registry Forums

Jason 91 · 03-20-2006

I'm interested in making some performance modifications to my stock 1991 ZR1. I want to keep it simple with cold air induction, exhaust and a chip. The problem is that I'm not sure which products I should go with to get the most performance for the dollar. Any help you could provide would be appreciated.

03-20-2006

CAI - no real gains to be had. Just doa K&N and a cut lid.
Exhaust - Corsa or B&B are the most popular, find a few locals and go for a drive to see which you like the most.
Chip - Haibeck

We Gone · 03-20-2006

Jason,

Did all them mods to my 91

may have gained a bit...But it sure does sound better....

bobbyhi · 03-20-2006

Gained a bit???? When I did mine I gained over 25rwhp. With the Haibeck chip I gained 10rwhp over the DRM chip.

Z Factor · 03-20-2006

While not everyone agrees with each other over choices of exhaust or chips, most will tell you the same thing Jeff did regarding the intake. It would seem that the stock intake system is about the best you can hope for since very little if anything is gained except a lighter wallet.

According to Mark Haibeck your best bang for the buck would be rear gears. While I have not done my gears, I have added headers, x-pipe, B&B exhaust and it sounds and runs strong.

RHanselman · 03-21-2006

Quote:

Originally Posted by Jason 91

I'm interested in making some performance modifications to my stock 1991 ZR1. I want to keep it simple with cold air induction, exhaust and a chip. The problem is that I'm not sure which products I should go with to get the most performance for the dollar. Any help you could provide would be appreciated.

Headers, high flow cats, Corsa (for the ears), port job with custom chip (Corey Henderson), and gears...

Jason 91 · 03-27-2006

Thanks for the information -- I really appreciate it.

03-20-2006	#1
Jason 91 Join Date: Mar 2006 Location: Denver, CO Posts: 123	Performance Modifications for 1991 ZR1 I'm interested in making some performance modifications to my stock 1991 ZR1. I want to keep it simple with cold air induction, exhaust and a chip. The problem is that I'm not sure which products I should go with to get the most performance for the dollar. Any help you could provide would be appreciated.

03-20-2006	#2
Jeffvette Guest Posts: n/a	Re: Performance Modifications for 1991 ZR1 CAI - no real gains to be had. Just doa K&N and a cut lid. Exhaust - Corsa or B&B are the most popular, find a few locals and go for a drive to see which you like the most. Chip - Haibeck

03-20-2006	#3
We Gone Join Date: Apr 2004 Location: Atlanta, GA Posts: 2,169	Re: Performance Modifications for 1991 ZR1 Jason, Did all them mods to my 91 may have gained a bit...But it sure does sound better.... __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold

03-20-2006	#4
bobbyhi Join Date: Jul 2005 Location: Mendota Heights, MN. 55120 Posts: 983	Re: Performance Modifications for 1991 ZR1 Gained a bit???? When I did mine I gained over 25rwhp. With the Haibeck chip I gained 10rwhp over the DRM chip.

03-20-2006	#5
Z Factor Join Date: Dec 2003 Location: S. Florida Posts: 2,647	Re: Performance Modifications for 1991 ZR1 While not everyone agrees with each other over choices of exhaust or chips, most will tell you the same thing Jeff did regarding the intake. It would seem that the stock intake system is about the best you can hope for since very little if anything is gained except a lighter wallet. According to Mark Haibeck your best bang for the buck would be rear gears. While I have not done my gears, I have added headers, x-pipe, B&B exhaust and it sounds and runs strong.

03-27-2006	#7
Jason 91 Join Date: Mar 2006 Location: Denver, CO Posts: 123	Re: Performance Modifications for 1991 ZR1 Thanks for the information -- I really appreciate it.