Ringlands break from too much heat in the piston face and/or too tight of a ring gap. The other hole looks like the spark plug turned into a glow plug.

There are several ways you could have ended up there. Lean mixture and too low octane could do it. If it was lean it would have needed to be a long pull to put that much heat in it. Too much timing sprinkled in for good measure wouldn't help. A rich mixture will do this if it is a nitrous motor. People think nitrous and rich mixtures are on the safe side... more like the blowtorch side.

This post was edited by FMX_89 on Apr 6 2016 04:45pm

14.2:1 compression on pump fuel

this is why you use different jugs for fuel

the crate motor gets 91 pump gas and the super street motor gets 112 race gas

and yeah, he didnt really pay attention, stalled it going to staging, didnt think anything of it, was idling at 2300 instead of 1700ish and 4 laps later we have melt down

good job class

im pretty sure superman used his heat vision vs your car

Did you try turning it off and back on again?

Little scotch brite and those bitches are good to go again.

yeah and a little bit of jbweld for the piston, should be good as new

I've ran worse in a pinch.

Melted the #4 piston in my 3.0 truck the year I quit pulling in the semi final. Tore down before the final pull off and sanded down the edges with 60 gritt (only thing I had) slapped the bitch back in and took second and lost by 4 inches.

The block was scrap after the run but that was one of the pulls that kept me in the running for the season points total.

Or maybe write the octane on the jug?

no thats stupid, just use different jugs and be aware of what your doing

ive never really had that issue because i run race gas and methonal, and you can tell real quick

water= blue jug
gas=red jug
methonal= white jug
diesel=yellow jug