sidenote: posted by ZEngineer on August 04, 2006 at 12:40 PM
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not the sniffer itself. That's why on the dyno, a tuner who has any experience at all will tune it .5-.8AFR richer.
The dyno is not to get a number so you can brag about it. It's not even about the number. It's about mapping fuel and timing so the car is safe to drive hopefully for most conditions. Anyone who has to map out the entire ECU from skretch would understand it. And that's about 99% of the tuning. I don't consider modifying a stock ECU (which has everything mapped out) for max horsepower tuning.