Quote:
Originally Posted by hawk362
I find that hard to believe unless he was running higher than 150 shot, or he didn't have a proper tune. I mean yes I can understand if he didn't set the tune up and was running very lean any extra type of boost will cause detonation with not enough fuel. But our motors don't need timing changes on anything less than 150 with enough fuel for the 10:1 N/A, I've run 125 on mine without any prior timing changes.
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I was in the car when it happened.
It had an AEM wideband. car was running fine on boost alone.
We then hooked up a 50 shot to it. (said 32 on the pill)
sprayed it, the car HAULED ASSSSS!!!!!
then when we let off it engine started sounding like a helicopter and bunch of smoke behind us.
When we got back home ran a compression test on it, noting in piston 3. Tore it down the next day and it had melted piston 3.
what caused it? a faulty crank angle sensor, kept changing the timing. One minute tooo advanced next too retarded.
car was running rich the entire time.