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A local guy who I respect and trust told me he played with a lean burn B18 honda engine. We compared notes, and arrived at the following recipe
Pretty high compression - he was 12:1.
Do NOT be afraid to advance the timing. A bunch. Like 13 degrees.
Have a knock or det sensor, and respect it.
Do NOT use lean burn over about 20 percent TPS.
He said he got 45-48 mpg out of the vehicle, and running it stoich, it only got 30 or so.
FWIW, From Stoich, if you lean it out a little bit, EGT's will go up for a while, then they will start plumetting.
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