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GotMuscle

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Discussion starter · #1 ·
Since i have a a Diablo 93 OCT tune on my 01 gt. there is a couple other paramaters that i modified ( shift points, shift firmness, gear ratio etc.) does anybody know how much spark advance a 93 tune gives on these cars, or better yet how much should i retard the timing for a 100 shot of nitrous. I also have an OR H-pipe installed and the SES light is on will that mess with the AFR too much when using nitrous, so would i be better off buying MIL Elims first and then tuning my car for the shot.


I did look at the nitrous sticky but it didnt answer my spark questions.
 
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#2 ·
The OR H is not an issue, all it does is set a code, does not change how the car runs.

Pull four or five degrees to begin with for 100 shot. With good gas (100 octane plus) advance the timing a degree at a time. Most people are ok with STOCK ignition timing for a 100 shot (not a 93 octane N/A tune). Hope the clears it up. Be sure to install copper plugs!!!!
 
#4 ·
ytngt said:
The OR H is not an issue, all it does is set a code, does not change how the car runs.

Pull four or five degrees to begin with for 100 shot. With good gas (100 octane plus) advance the timing a degree at a time. Most people are ok with STOCK ignition timing for a 100 shot (not a 93 octane N/A tune). Hope the clears it up. Be sure to install copper plugs!!!!
Click to expand...
^ this, most people just resort back to stock timing when running spray.

not only install copper plugs, but install plugs that are 1 step colder.

Heres a little read for you
http://www.moddedmustangs.com/forums/99-04/143926-new-edge-nitrous-question-look-no-further.html
 
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Discussion starter · #5 ·
GotMuscle said:
I did look at the nitrous sticky but it didnt answer my questions.
Click to expand...


Once again i looked in there but my question is should i just retard the timing off of the 93 OCT tune with my diablo and run -1 plugs


And yes i do have the ZEX system
 
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#6 ·
^^^ That is a good write up. I was doing all that stuff back in 2004, I even had a latching relay setup off my dynojet WBC relay output for A/F switch. Lord all the safety stuff is expensive and a ton of wiring. BUT I ran several hundred pounds of nitrous. I was buying the mid 60# big bottles with siphon tube and filling my own 10# bottle!!!
 
#7 ·
GotMuscle said:
Once again i looked in there but my question is should i just retard the timing off of the 93 OCT tune with my diablo and run -1 plugs


And yes i do have the ZEX system
Click to expand...
All your 93 tune does is up the timing. so start out running stock timing and go from there. If you go on the zex website they tell you how your timing should be
 
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#12 ·
Nicos2001GT said:
Well on the install paper that comes with the zex kit says that you should advance the timing by 2
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That doesnt make any sense, i would call and just ask them about it ive always heard - 4 to 5 degress for 100 shot and i pulled 7 degrees and 2 step colder plugs for my 150 shot.
 
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#13 ·
Nicos2001GT said:
Well on the install paper that comes with the zex kit says that you should advance the timing by 2
Click to expand...
That says you should RETARD timing 2 degrees for every 50 hp. I have the 91 octane tune spraying 100 hp zex shot and I retarded timing 2 degrees without detonation. You need GOOD fuel or kaboom
 
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#14 ·
JM0523 said:
That doesnt make any sense, i would call and just ask them about it ive always heard - 4 to 5 degress for 100 shot and i pulled 7 degrees and 2 step colder plugs for my 150 shot.
Click to expand...
Bet that thing was a turd pulling that much timing out of it for a 100 shot lol
 
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#16 ·
BaznastyDave said:
Bet that thing was a turd pulling that much timing out of it for a 100 shot lol
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I dont remember exacts but it was in the range of 440 rwhp all i was after was 500hp and the calculations put it at 529.4 fly wheel horsepower.
 
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#17 ·
BaznastyDave said:
Bet that thing was a turd pulling that much timing out of it for a 100 shot lol
Click to expand...
I guess i forgot to mention it was on my LS1 Camaro that i just traded for this GT ive got.
 
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