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But it puts more stress on you motor due to it running off of a belt. Over time it will wear the motor out.
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Although my expertise is in turbochargers, ive never heard of superchargers wearing out your motor due to the fact that they have belts. When you think about it alot of things run off belts, but do nothing to the life of the engine given they are all properly maintained.
A supercharger is a parasitic device, but the 1-2 horsepower you lose to turn the belt, is offset by the 50+ horsepower gain. Since its belt driven it has instant power which increases according to engine speed.
A turbocharger uses free energy, since heat is a form of energy (an anyone that has made the mistake of touching a car with hot headers knows just how hot it gets). Back in science class we learned that gas will expand to evenly fill any volume. So as exhaust gas leaves the downpipe and enters the larger volume turbine housing, it expands pushing the turbine. Which in turn, turns the compressor wheel which compresses incoming intake air.
Normally a turbocharger will make more high end power while a supercharger will make more power down low. But thats not always the case, because making big boost is normally associated with turbochargers. There was Civic Del Sol i read about that had built internals with a Vortech supercharger, it had a upgraded pulley which allowed it to run 14-15 psi the Del Sol was making 376 whp and 240 ft-lbs of torque and thats with belt slippage. They later fixed that and were making 413 whp!!!
Although I personally would go the route of a turbocharger, since i don't like putting things on my car that I don't fully understand how every part works. But i would seriously look at a big boost supercharger as an alternitive to the turbo.
