04-19-2012, 07:18 PM
Join Date: Mar 2012
Location: Pensacola Fla.
Total Cats: 186
Any piston can fail under the right (wrong) conditions.
Go lean, too much advance, wrong tune, wrong octane, wrong PTW clearance,faulty sensor, the list can go on and on.
But to blame the edge of the piston to cause the failure is a bit out there.
What that shows is the weak point of the piston to fail.
Any piston will have a melting point.
Savington did say he had a small ebay IC when this happened, so being an armchair quaterback, the IC got heat soaked, the IAT went up, and that inturn brings up the combustion chamber temps, and that brings up EGT.
With the raised combustion chamber temps, that was just enough to cause the piston to fail.
Remember for every 1* IAT go up, EGT go up 3*
so even a 10* increase in IAT will cause a 30* in EGT, I do not know how much that would raise combustion temps.