I don't think there's ever been too much science regarding this because this type of fuel would be considered illegal in racing, which where most of our testing comes from.

As far as performance or damage that could be done has always been left up to the tester.

Nitromethane by itself does not burn, its only supplies more oxygen to the burn. Adding it to gasoline would be the same thing as running very high octane fuel, which involves motor knowlege and reworking to run safely. Adding nitro to an engine that is designed to run gasoline will also destroy any type of rubber seals it may contain.

Only my 2 cents...........