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Old 12-01-2014, 12:01 AM   #6 (permalink)
Baltothewolf
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Join Date: Nov 2013
Location: Apple Valley
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Winsight - '00 Honda Insight
90 day: 56.69 mpg (US)

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Quote:
Originally Posted by ever_green View Post
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.
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.
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