ORIGINAL: silverbullit05

man sounds like i will be getting a twin screw saleen series 6 as well. now i just have to wait on 75'000 miles or 7 years... (DEF 75,000 MILES) DON'T WANT TO VOID THE WARRENTY. even though every single mod i have done to my car i have done my self mostly so the aafe's dealer over here will not know what i have done. and i absolutly love working on my car!

ORIGINAL: Birdieman4

I have owned and tuned a centrifugally blown car as well as a twin screw car. I have had a lot of time in both cars. The biggest reason why I say go twin screw is because of the much fatter powerband. A centrifugally supercharged car's hp is directly dependant to its rpm. A twin screw car isn't. Because the power comes in A LOT sooner in a twin screw car vs a centrifugal car, it makes it very streetable but very fast at the hit of the throttle. What I mean by that is you can haul *** all day in a twin screw car and never exceed 4000 rpms. In a centrifugal car, your big power starts at 4000 rpms. You get the power where you need it with a twin screw for the 4.6 motor- down low. But, you also get it in the mid to high range as well. With a centrifugal blower, you get it up high. As most peole with centrifugal blowen cars do, they add really short gears to help keep the car's rpms up high all the time. It makes the car less streetable. With a twin screw car, you can run taller gears and still get through your rpm range very quickly. I like having a freeway car, gear wise. -My personal preferance. The twin screw allows you to be able to have the best of both worlds.