Yeah superchargers are a good ups... bot not for turbo cars. I have never heard of someone getting 8 second quarters and 800+ WHP on supers in something like a Supra. Usually a super is a great way to get some boost on N/A cars, because they act just like a Turbo but they attach to the belt instead of having a Turbo's manifold attaching style. they pair well with an air to water intercooler. But really theres no comparing a simple belt supercharger to someting like a big single, a sequencial twin sutup or a twin scroll setup turbos.