| excessive heat is the enemy of all combustion engines & saps power, performance & reliability
so cooler = more power
but you cant compare a aircooled cag with a blata or blata rep they have a totally different internals crankcase transfer ports & exhaust port setup as well as bore & stroke etc..
most wc pocket bike & high reving ac chainsaw engines also only run 1 ring witch reduces heat & friction but wear the ring out faster |