quick question about e85
#1
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quick question about e85
I recently had to take off my resonator and noticed my afr on e85 change a little bit. Under wot it hits 11.8 11.9 around 4k then proceed to go to 12.5 12.6 these afrs are off an aem digital wide band, are these afrs safe or is a retune required
#2
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Your issue could also be related to the ethanol content. Have your Long term fuel trims changed much? That is a little too lean for my liking.
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I don't really know I can't datalog it I just noticed that with my afr guage, the ethanol I filled up with recently was about 90% what should the afrs be under wot to be safe
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r as e85 goes there's really not a winter or summer blend out here in California
Althought the levels of ethanol do fluctuate, I test at every fill up though
Althought the levels of ethanol do fluctuate, I test at every fill up though
#7
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This is correct for gasoline but not E85. In my experience, along with what is suggested in the E85 subforum a good Gasoline AFR to run E85 at is 12.0 +/- .2 . Too rich and E85 seems to wanna knock.
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I'm not too sure what percentage it was when it was tuned as I was not able to make it the day of the tuning, is it bad enough to have it re dynoed, don't want to re dyno just because of a resonator
#10
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I would hit up roadrace and explain it to them. Those AFR's might fly depending on your setup.
#11
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I was getting small counts of knock here and there with 11.5 . I kicked it up to 11.8 and it cleared up. Every setup is different though and you gotta find what the car likes.
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