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A mechanically driven supercharger has to take its drive power from the engine. Taking a single-stage single-speed supercharged engine, such as the Rolls Royce Merlin, for instance, the supercharger uses up about 150 hp (110 kW). Without a supercharger, the engine would produce 750 hp (560 kW); with a supercharger, it produces 1,000 hp (750 kW), a total increase of 400 hp (750 hp — 150 + 400), or a net gain of 250 hp (190 kW).
that info is from WIKI. I have heard those monster dragsters use super chargers that take 200, and even heard 700HP to run the super charger!
a friend of mine works at stillin nissan, and has an extra m62 on hand, and said that super charger takes maybe 30hp to spin.
Thanks for the push on fixing my super charger.. but I always did hate that thing. I wanted a 10lb boost pulley but did not like the 700$ price tag. for every other super charged vehicle , a pulley only cost 200$. even the BMW mini cooper which uses the same S\C.
with all the cost running up on the super charger to make me happy.. I would just toss in a turbo charger.. BUT this is my daily drive as mentioned and would like a simple, dependable, stylish cruiser.
also, to boot, I am currently building a w201, m104, 5spd, turbo, mega squirt car for my speed addiction. =)
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