zex nitrous question
Thread Starter
Instructor
Joined: Mar 2007
Posts: 141
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zex nitrous question
i have a 97 c5 a4 and have the basic bolt-ons along with a 75hp shot of the good stuff. The kit instructions say to retard timing 2 degrees for 100hp jets and 4degrees for 150hp. My goal is to run 100hp shot without buying a ign. controller. I heard that if i use 94 octane this would allow me to go with the 100shot. Is there any truth to this information?
Burning Brakes
Joined: Nov 2004
Posts: 822
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From: Grafton Ohio
I used to have the zex kit on my 98. I ran the 125 jets on the stock tune with 93 octane gas with no problems. On an otherwise stock 98 6 speed vert. I was able to run consistent 12.30's@116mph.
Jer.
Jer.
Drifting
Joined: Sep 2005
Posts: 1,258
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From: Home Southern Maine
St. Jude Donor '08
With my 99 Totally Stock, I could spray 100 shot without any KR, above a 100 shot we needed to pull some timing, we ended up pulling I think 3° for a 175 shot.
I think you'll be ok, but it may be worth your while to monitor KR the first couple times you do it (with a handheld or a something like EFI Live or HPT).
The 94 Octane will help ya out. I was using 93 Pump gas.
I think you'll be ok, but it may be worth your while to monitor KR the first couple times you do it (with a handheld or a something like EFI Live or HPT).
The 94 Octane will help ya out. I was using 93 Pump gas.
