Thread: Target afr
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Old 02-19-2015, 04:36 PM   #21
burdickjp
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I haven't seen a stock open loop AFR target table for a toyobaru richer than 0.9 lambda. Most of it stays around stoich. I've also not seen an NA tune for these any lower. Look at the OFT tunes for good examples.

If you're losing power you're out of your MBT plateau, and doing it wrong.

The big point here isn't the hard numbers, it's the concept of MBT as it pertains to AFR. If you want to lower EGTs (which isn't much of a concern with an NA application), richen it up until it starts to lose power and then bring it back some. Add timing until you don't make any more power, bring it back some. Do a happy dance. Go enjoy it.
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