Slamm
Addicted to ArboristSite
That's the Jenning's article I was referring too.
Bell found the same thing. His interpretation was not just about improved ring sealing, but improved heat transfer from the piston to the cylinder. More heat into the cylinder, less heat into the charge in the crankcase.
Less heat into the charge in the crankcase, less expansion of the charge, more charge for the same volume.
That is why I found TW's data so interesting. More heat transferred to the cylinder wall would explain the rise in cylinder temp, without a similar increase in exhaust temp.
Finally, you started to speak some form of english that I can understand.
Do you think that is is a good idea to run either no base gasket or a metal base gasket or a more insulative/fiber base gasket to keep the heat up in the cylinder and not let it travel down to the crankcase?
Wonder if it would make a nickels worth of difference.
Sam