Quote:
Originally Posted by iTuneCars
Surely fuel and ignition timing settings (@ minimum) on the original ECU need to be altered to optimize the supercharger upgrades currently available.
So, how are supercharged z4m's being tuned?
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a supercharger hits a set boost at a set RPM, that won't change.... the tuners basically use a speed density tune and predict whats going to happen at each increment ( how bmw tuned the CSL) this is why is easy to tune for the s/c.