Originally Posted by Mr. D
I wouldn't argue the numbers, but I've seen twin turbo setups on Mustangs and they look a lot more complicated than a supercharger. All I can tell you is that I love the way my Roush Supercharger makes my car run. The H.P. approaches all that is useable for a driver. I think the beauty of a supercharger is how the car drives when my foot isn't in it. Of course we know there is always something faster.
A positive displacement supercharger almost always has boost available. Some people think a supercharger of any kind will have instant boost at all times. I haven't driven a PD or screw blower in a long time but they are fun and probably the most difficult to actually race with due to the boost hitting so fast.