Switched

so i haven't posted here for a while but after 4 years of runnin my sts trubo on my Denali it finally let go after 25k (58k total) hard miles lol. After a summer of nitrous and 12# heres the after math. im almost wonderin if a injector failed? oh well on to bigger and better things lol.

o2camaross

iTrader: (2)

Definitely look like detonation with all the spots on the piston. Also look like the ringland didn't break but rather melted

SGP93GSX

iTrader: (3)

I second detonation. Is it possible that you picked up low octane at a crappy station, then ran it hard? Is it only in that one cylinder?

LsF-150

iTrader: (2)

The dreaded #7 burnt piston...

Switched

its alaska all the gas is crappy lol. it was 90 and i was runnin pure meth so idk. only #7 looked like this all the others looked fine