Years ago, the complicated machining required to fabricate the rotors of a twin-screw compressor restricted the design to industrial applications, but thanks to CNC machining the cost to manufacture these parts have dropped significantly. Kenne Bell, Whipple, and Vortech-Lysholm are all producing screw-type superchargers and supercharger kits for modern and classic cars, including Mopars. Twin-screw systems generally give more hood clearance than Roots superchargers, as air can enter at the rear instead of the top. The screw-type supercharger also needs less maintenance than the Roots, since no Teflon seals are required on the rotors, making it a great choice for your Mopar.
Whatever style blower you...
Whatever style blower you choose, it will be driven by the crankshaft by either a belt or gear drive. Street systems normally utilize a serpentine belt, often shared with the rest of the accessories, while high-boost units need a cogged belt to prevent slippage.
The technology behind supercharging...
The technology behind supercharging can't all be covered in one magazine article, so if you want to learn more check out The Complete Guide to Street Supercharging by CarTech.
Screw-type superchargers have...
Screw-type superchargers have very high efficiency ratings, but are somewhat more complex to manufacture than Roots or centrifugal blowers.
Kenne-Bell already has screw-type...
Kenne-Bell already has screw-type supercharger kits available for the 5.7 and 6.1 modern Hemi engines, enhancing an already potent platform.