Originally posted by Cronic
I'm still not sure how an EGT can show you how to tune timing...
All else equal, more timing advance will lower EGTs.
If the timing is not sufficient, it will become obvious when EGTs go up as fuel is added. I have seen this first hand with my Dodge. Its pretty spooky when you add 75-100 hp worth of alcohol and the EGTs go up 150 degrees with the exact same advance and no knock retard! But, it confirms where the problem is conclusively. All that extra fuel is burning too "late".
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Larry
2002 MB C320 Sport Wagon 15.4@91
2002 Dodge Neon SE
1991 Dodge Spirit R/T-12.3@117 (at 368 whp) Now 500 whp / 514 ft lb on pump gas
