Originally Posted by racer_x

the 50/50 measure is intended to drop temperature in the intake mani (via H20) and simultaneously increase combustion to a level that not only compensates for the water's natural effects of retardation, but exceeds the car's stock capabilities of safe combustion without knock... That being said, I would be terrified of running 100% meth on a turbo vehicle because of the lack of cooling effect taking place...