Thank you Bill, my question was intented a as an average temp for an vspec engine, because here he are running 4 vspecs, 3 of them are in the 210-220F in the same race day (36-38F / 20% humidity) but mine is 260F, (same fuel all of the engines) so I was wondering why the hi temp.

They are running the extra shim in the button head, is that a factor to cool down the engine?