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Tuner
Afr going rich vs high iat
Engine has been Street tuned and running great at 11.3:1 afr wot (boost).
Tonight's first night drag racing and my iats went from 120-133 during my third and fourth gear pull. My afr went so rich it pegged at 10.1:1 and I leaned my ve table in my wot area 4400rpm+ (135-150kpa) by 12% to get it back near 11.3:1 afr.
After my night ended and my car Sat an hour, on my drive home I floored it with 70-80 degree iat's and as soon as I got above 4400rpm it started going lean! 11.8:1 afr!
What can I do to fix this?
I found the power enrich vs iat table but it only increases my PE value if I read it correctly? Does this mean I must add fueling to my normal Street iat area and leave my ve table tuned for my high iat racing temps?
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Tuner
Sorry if my paragraph is tough to read. In my own research, I am learning about this cylinder charge temperature table. I checked it out on my '02 corvette z06 and with my 2bar spee density conversion, I only see an option to enable or disable. Nothing else to adjust it by. Why is this?
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Advanced Tuner
I turn off the complex cylinder charge for boosted engines, I wouldn't use the ve table to correct this issue as it will lean out when the temp comes down as you have discovered.
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Tuner
I disabled it but i wont be able to race until next week to make the temps rise to that level again. Any suggestions? Only thing I can think of is if disabling cylinder charge temperature will fix my problem.
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Advanced Tuner
Are those IAT readings C or F if C yes that is fare hot, have you got a intercooler and cold air intake?