I've played with nitrous on street cars a few times, but never more then a 100hp shot with a plate system. Haven't ever hurt anything, usually just pick up so much tire spin it doesn't help much. Did run it on a tank of a Galaxie I had for awhile, even just a 75hp shot on a big heavy car helps a bunch getting it moving.

It was rumored that we ran it on a dirt burner one summer but we must not have cuz they never found it on the car!!!!!