Have you ever tried boiling a cylinder to test pinch?
 

I figured if I boiled my cylinders I might be able to simulate a 200 deg head temp, or
at least expand the cylinder enough to allow the piston to move further up the cylinder.

But it didn't.

How hot do you preheat a cylinder during break-in, or before a race?

I noticed my cylinder cooled down really fast, how long will a cylinder stay warm after
the heater has been removed?


thanks


Bill M.

Be aware that normally inside the cilinder it is much hotter causing some extra expansion, also the piston has a highe temp.

Pre-heaten is done with hair dryers, paining removal heatguns, or special RC heater products like competition heat, sure start etc.