M2 Ecu too rich
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Joined: Feb 2002
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From: san jose
M2 Ecu too ich
I recently got my car dyno with all the bolts on and M2 ecu and notice how rich it ran above 6500 rpm at the same time horse power started to drop. Has anyone try using an AFC to lean out the air fuel ratio above 6500 rpm to see i you can get more power. Let me know thanks.
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From: San Lorenzo, California
By the time you put in an S-AFC and an M2 chip, you could have almost bought a PFC.
Anyway, what are your A/F readings? I've seen an M2 chipped car dyno and it was not excessively rich at 12 psi with bolt-ons. It was about 11:1 after transition if I recall correctly...
Anyway, what are your A/F readings? I've seen an M2 chipped car dyno and it was not excessively rich at 12 psi with bolt-ons. It was about 11:1 after transition if I recall correctly...
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Junior Member
Joined: Feb 2002
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From: san jose
The air fuel ratio was smooth at around 11:1 but once the engine hit 6500 rpm, it drop dramatically below that but i'm not sure exactly maybe half of that and i'm not kidding, extremely rich
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