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Old 10-13-2012, 11:07 AM   #111
mouthfulloflake
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Joined: Aug 2008
Location: N.W. Arkansas
Oddometer: 17,520
I read somewhere ( likely here) that the plate gives about +/- 5 degrees of adjustment.
I retarded it as far as possible, and began using 91 octane ( minimum), the pinging stopped, but in that same time period, our daytime temps went from 100 degrees, to about 60, so not sure which factor played the largest role.

My gut guess is the higher octane fuel, and the cooler temps.

Quote:
Originally Posted by roger 04 rt View Post



Thanks. Any idea how many degrees you moved the timing by rotating the plate the way you did?
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