03-12-2016, 09:36 AM
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#3 (permalink)
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EcoModding Apprentice
Join Date: Apr 2011
Location: Canyon Lake, Texas
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Quote:
Originally Posted by serialk11r
Are you sure it's detonation at 18:1? If it's a popping sound, that's probably misfiring not detonation. Detonation above 16:1 is very unlikely because you have a lower flame temperature.
I've written about my experiences doing this on my Scion FR-S (a Subie FA20 motor). It doesn't like idling at 17:1 no matter what, and doesn't let you tweak cam timing at idle to reduce EGR. Lean burn only works when the engine is able to consistently burn the mix quickly.
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good post  |
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