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Originally Posted by TheDoc
Supercharger owns a turbocharger any day my friend..
You don't see top fuel cars running turbocharers, they are either blown or supercharged.
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That's because they're not allowed to run turbochargers in top fuel, not because superchargers are better
Superchargers have more parasitic loss than a turbo, in other words it takes more power to turn the supercharger than it does a turbocharger. Turbochargers run off of exhaust heat & pressure, superchargers off of a pulley from the crankshaft.
Turbochargers only put pressure on the engine when you really step on the gas beyond normal acceleration and create boost, a supercharger will stress the engine at all times because it creates boost relative to engine RPM. Less stress on the engine during normal driving is a good thing, so the turbo wins out in that respect.
But a turbocharger also has special requirements, such as letting the engine idle for a while after it's been run at high speeds, so the turbine has time to wind down and you don't cut off the oil supply while it's still spinning. Turning off the engine suddenly after having the turbo spool up - just once - could destroy the turbocharger.
If you have unlimited funds and are going to pay someone knowledgeable to install it, you'll probably be much happier with a turbo if its set up properly. If you don't have the money or the desire to be so careful with the engine maintainence, a supercharger would probably be a better option. However I'll be honest and say that most people who don't know this sort of thing and dive into either option end up with a blown engine in a few months regardless from misuse. With either option look into getting an oil cooler and if possible an intercooler, it helps with engine reliability and can give more power.