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Originally Posted by blu808
This is true, The ideal ratio on a turbo car is richer, but how can that be considered rich, if thats where its supposed to be?
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That is what it is
supposed to be for a car that you want running for awhile. When you actually drive the car the A/F doesnt stay exactly where you want it, it will fluctuate, so you tune the car a little rich (giving up a lil power) so that when it does fluctuate it will not go too lean and blow up your motor. NA cars have a much less possibility of detonating so they can tune a little bit more aggressive then we can.
I believe I am correct in saying that the "perfect" A/F is 14.7:1, but it is very hard to tune the car to stay at that A/F and not detonating is almost impossible w/ conditions changing constintley.