Quote:
Originally Posted by Vinalero
hmmm if you tune to maximise when you spray, what will happen if you gun it without spraying?
In my head, if you tune it one way, its gonna be totally off when you don't spray?
Plz enlight me.
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Yep, meth lowers your AFR by about 1.3-1.5 as far as I've seen, so a car tuned to be at 12.0 will be at 10.7. If I tune (like I have) to target 11.8, and run out of meth, the AFR will jump to almost or at 13s, and also the spark timing may be advanced too much for normal fuel and cause detonation. So you just make sure you have enough in the tank.