06_gt

I hear that you dont need to adjust your timing for a 75shot of nitrous. I had my car dyno tuned with an o/r x, race axel back, cold air intake, and cams. I would have thought my timing would have been adjusted. I pluged in my sct tuner and it read "0-2000 spark 0 degrees" "2000-4000 spark 0 degrees" and "4000-8000 spark 0 degrees". Is this my timing or what? Im wondering because i have had the car tuned and i want to put this nitrous on but i dont want to hurt my motor. Thanks for any help!!

cfr865

Which octane tune are you running ? I was running the 93 oct. tune from Brenspeed for everyday use,Brent said to run the 91 oct. tune with the 75 shot, this is what I did without a problem.The 91 tunedoes have less timing. I have since went FI.

cfr865

I forgot to add Brent said to use 93 oct. fuel even though I was using the 91 oct. tune.

grampa_stang

The "0-2000", "2000-4000", and "4000-8000" are the RPM ranges.
The "0" is the starting point of your adjustments to either add or pull
timing from the current setting.