Quote:
Originally Posted by ever_green
yes pinging is from overly high ignition timing. most manufacturers like to inflate timing and run at the hottest 14.7:1 AFR. this is mostly for emission purposes. My AFR enriches above 55% to something like 14.4 AFR and timing gets retarded. no knock from data logs so far.
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Awesome. The last and foremost concern would be the long term effect on the catalytic converters. They weren't designed with the raised NoX from lean burn, I recommend a hard drive to burn off all the NoX once in a while.