Melting Electrode on Plugs
Unfortunately it's the wrong electrode that's beling melted. Only the center electrode will be affected by changing heat range of the plug. Heat range will not change the cooling of the ground electrode at all.
That plug has been damaged by extreme temps that could be caused by detonation and/or severely retarded ignition timing. An EGT probe would be a very good way to check for retarded timing.
Note that when a stock ECU detects knock, it retards the timing to reduce detonation. The chamber temps go up dramatically when that happens.
That plug has been damaged by extreme temps that could be caused by detonation and/or severely retarded ignition timing. An EGT probe would be a very good way to check for retarded timing.
Note that when a stock ECU detects knock, it retards the timing to reduce detonation. The chamber temps go up dramatically when that happens.
yes but a plug run out of its heat range tends to do crazy things that can induce detonation and knock
And isn't he running E85? That runs and burns *much* cooler than petrol.
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yellowman
Evo Engine / Turbo / Drivetrain
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Jun 15, 2005 06:30 AM
