Ahh the old turbo vs SC debate......

It's a toss up, depending on turbo size and application. The SC is *instant* boost, the turbo will have to spool. Most people/kits run t3/t4's which can spool anywhere from 3500~6000 depending on how big the compressor is the displacement of the engine. Superchargers on the other hand can blow termendous amounts of hot air(roots style) which is bad for power. Also superchagers have whats called parasitic drag, IE it's take power to make power. Turbochargers on the other hand require very little energy from the engine, since they rely on the exhaust gases to spin the turbine. On the other hand.....wait i'm out of hands.

Not the best explanation.....