But the concerns of a supercharge making cylinder pressure in conjunction with the pressure made by the compression of the piston moving up are not the same as an equal amount of presure made by compression alone. And an intercooler reduces the equvilency even further.Cylinder temps and detonation is not the same because of the amount of heat actually generated outside of the combustion chgamber and (in the case of an intercooler) shed there too. Not to say that even 12psi of boost is not a LOT.
Mark...