The concern is the pistons are going to run too hot.

Your boost level is in a range that I dont think you need the oilers. Ok ... you did melt a piston, however once you get detonation any piston will melt.

The high velocity of detonation scrubs away the thin layer of air that serves as an insulator in the combustion chamber. As this layer gets scrubbed thinner heat transfer goes up dramaticly.

There is nothing that will keep a piston that is in prolonged detonation from melting. Forged will help since they transmit heat better. Non isolated skirts ( no groove in the oil ring) helps get the heat to the water jacket.

Steel rings conduct heat about 15% better and the top ring is the major heat transfer path for the piston, so it does help.

But.... IT still all comes to this, detonate and all the extras do is buy you some more time until the piston fails: it still fails.

Get a compression ratio that gets the cyl pressures in a decent range, use some type of boost retard on the ignition, get a plug thats not too hot under boost and make sure the fuel supply is there and you won't have any melted pistons.

If you could get a detonation sensor that dropped the timing back that would help a lot if somthing goes wrong like you get an unexpected lean out.


Kevin C