Quote:
Originally Posted by krisr
Nearly every "melted" turbo LS done on the cheap conversion i've seen melts #7 piston - and yes, steam ports left intact. One of the owners I worked with did it 3 times. Zero issues with tune, heaps of fuel and 10* timing. Apparently not an isolated situation and many others report the same issue with stock bottom end motors.
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That's most likely because of the tune. The LS engine, particularly with the passenger car intakes, have a tendency to run the #7 cylinder lean. When I was tuning them it was pretty common to increase injector pulse width for #7 to richen that cylinder a bit.
Just a little tid bit for those closet LS guys I know are lurking here
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