It was 20 years ago for the real one.
Probably never heard of Turbonique either. Gas turbine powered superchargers that ran on acytelene and oxygen tanks. I think that they went up to about 50 psi but were rated at 35 psi on most American sized motors.
They also had "Motor" variants that could put 500 shaft horsepower into a VW bug.
They just had a minor liability problem when the units blew up at 35,000 rpm
Imagine a 148 mph in the 1/8th mile on a go-cart when the top fuel dragsters of the time were just passing 200 mph quarter mile speeds.