Mail order tuning for N2O?
06-10-2004, 06:00 PM
#1
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Join Date: Apr 2000
Location: Austin, Texas...Y'all! :)
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Mail order tuning for N2O?
Im about to jump on the N20 bandwagon 
and was wondering how close a mail order tune could come.
I have a dyno coming in early July but i wanted to be able to safely spray at the track before i go to the dyno.
how many of you just did a mail order tune and everything worked fine?
Thanks!
and was wondering how close a mail order tune could come.I have a dyno coming in early July but i wanted to be able to safely spray at the track before i go to the dyno.
how many of you just did a mail order tune and everything worked fine?
Thanks!
06-10-2004, 08:41 PM
#2
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Location: Dover DE
Posts: 1,620
program the computer for the best n/a,then spray it.i went 11.022@124 with a basically stock program (only changed fans/shift points/tires/gears).
car ran 12.36@109 n/a,bolt on lt1.
With the nitrous kit,you can tune it by fuel pressure,jets,and pulling timing.
Getting the computer mail order tuned for nitrous will KILL n/a running.
car ran 12.36@109 n/a,bolt on lt1.
With the nitrous kit,you can tune it by fuel pressure,jets,and pulling timing.
Getting the computer mail order tuned for nitrous will KILL n/a running.
06-11-2004, 02:10 PM
#3
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So no tune then? I always thought that you were supposed to retard the timing a little...
So if i just change the plugs to NGK Tr-6's and spray ill be fine? Seems too easy
So if i just change the plugs to NGK Tr-6's and spray ill be fine? Seems too easy
06-11-2004, 03:04 PM
#4
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Location: Folsom, CA, USA
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Yeah, too easy 
The point is that 99% of the time, you're not spraying the motor. Your PCM can only have one tune, so the normal way people do it is to have the PCM tuned for NA (99%) setup. Then you tune for nitrous by adjusting jets, adding retard boxes, etc. But your PCM essentially doesn't have anything to do with that.
Dunno if that clarified it...
Dave
The point is that 99% of the time, you're not spraying the motor. Your PCM can only have one tune, so the normal way people do it is to have the PCM tuned for NA (99%) setup. Then you tune for nitrous by adjusting jets, adding retard boxes, etc. But your PCM essentially doesn't have anything to do with that.
Dunno if that clarified it...
Dave
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