What the hell was that!
It looks like an evil piston, solid black with a ring curled up in defiance.
Don't tell me you pulled it out of the river styx.
No, mine look perfectly normal. I emailed the pics to Demon though he may not know it yet.
He MIGHT host one or two for me. Definitely not caused by detonation or running lean. I really think it was just a weak piston that didn't make the grade when the stress went up. You know the old statistical variation reason where some pistons are weaker than average and some are stronger. THis one was weak.
The other pistons made the grade though so maybe I'm good.
I will consider forged pistons, but the cost and then the balancing costs...
Don't get me wrong, if I had money to blow I'd do it.
Keyser's been running 10psi without issues so far as well. Again it just makes me think it was a defective piston. If you guys could only see the broken piece, you'd see it wasn't a normal crack but apparently broke along a defective area in the alloy, possibly where there were voids in the metal.
warmonger
