DietCoke

iTrader: (18)

Shitty tuner. That pull should have stopped as soon as it went lean. Piston top is scorched, obv it got hot and was hurt.

Z284U2TRY

iTrader: (5)

quote for truth

06X6spdGTO

iTrader: (6)

Maggies run leaner than turbos, yes. But maggies run @ 14.1:1AFR hell NO! I dont push my maggie over 11.4Afr with water meth injection!

joe111599

Dang! I hope you get some kind of reimbursement over this. Hopefully you didnt sign any kind of paperwork(waiver) prior to the dyno. Most likely you did if this "tuner" works out of that shop often. The shop would make him get the waiver signed. But hey...if you didnt sign anything then I would go after him for the motor he toasted! No doubt in my mind it was the tune that caused the piston to fail.

Good luck with the next build!

Old Geezer

iTrader: (3)

NE other data logs?? Fuel psi comes to mind.....

Sprayed1998

iTrader: (10)

Wow thats crazy lean

MXMattGTO

That must have been one heck of a ping. Sorry to see the damage. Hopefully once it's back together it's even stronger than before.

M1tch

Does this look familiar? https://ls1tech.com/forums/forced-in...dumped-me.html