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I'm wondering how People set a AFR Target Map for Endurance Races like 24h.
We did it on a Stock ECU before several times and used fuel like nothing else. Now going to a PNP solution with a MS3.
It highly depends on octane rating of fuel in use- the higher it is the leaner you can go. But in order to find out exactly you need a Dyno to play with the numbers. For instance you might loose a few hp by reatarding ignition timing and leaning out the fuel map to some extend - it's an act of balance. 4G63 makes best power at 10.8-10.9 and it would loose a little bit of power at 11.3-11.4 but save some fuel.
