Turbo vs. Supercharger:
As stated before, it really is a matter of what you want. Now those quoting numbers, remember, turbos require alot of internal strengthening before running properly (i.e. upgraded camshafts, cam gears, valve springs, retainers, aluminum gaskets, port & polish, angled valve jobs, etc...) before you can run it without worrying about detonation. Also you have to take into consideration the amount of maintanence a turbo requires. So dollar for dollar, supercharger will be the better bet. The power is linear, this means at idle you are running about 3-4 psi. Turbos run 0 psi at idle and spool slower, power generally comes at about the 5500 rpm range then the power rules. So the turbo will be playing catch up in the race. Superchargers are not made for top end power (this is where the turbo will gain and rule) but more for low end torque and power. Means at the light you will spank the turbo but at the end the turbo will eat you. Although it is possible to bolt on both to a stock engine, the turbo will cause the engine to detonate under the all the added induction it is receiving. Thus the addition of stronger internals. You have to also properly tune both for maximum efficiency. Compressions plays a major role here so make sure to keep this in mind. Try adding a stroker kit (no pun intended) and then base your decision on the final numbers and where you would like the power. Nuff said.
