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Old 23 Apr 2010, 12:55 (Ref:2678410)   #13
Tim Falce
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Join Date: May 2003
England
Very edge of S E London almost in Kent
Posts: 11,141
Tim Falce is going for a new world record!Tim Falce is going for a new world record!Tim Falce is going for a new world record!Tim Falce is going for a new world record!Tim Falce is going for a new world record!Tim Falce is going for a new world record!Tim Falce is going for a new world record!
From bitter experience and not listening to people who know, I have destroyed about 3 engines through detonation. I doubt the jets or air correctors, 180 are massive, would have made it run lean. What jets and air correctors did you start with and what changes were made to the timing?
I would go with the timing being too far advanced, on my hemi headed Jaguar I've now gone down from a max of 36-39 deg advance to 29degrees. On the old setup the engine would be fine until I pushed it over 5K then it would overheat and I suffered various bearing and crankshaft failures and luckily last time only the head gasket melted, since I retarded it the temp never goes above 75-80 degrees and I can safely rev it to 6.5K.
Also don't forget that doing a few short runs on a rolling road is nothing like driving on the track for stress on the engine.
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