A roots-type supercharger is a positive displacement supercharger that forces air into an engine with two rotating, intermeshing rotors. A centrifugal supercharger has an impeller that pulls air through the center and directs the air into a scroll using centrifugal force. The scroll resembles a large blow-dryer with a circular shape and a discharge tube. The air is directed in the scroll, pressurized and forced out of the discharge tube and into the engine. The two types of superchargers have different performance characteristics that have led to several debates on which supercharger is preferable. Proponents of roots blowers argue that more boost is available at lower RPM to provide off the line acceleration. Centrifugal supercharger enthusiasts argue that roots blowers are limited at higher RPMs and can increase air temperature and decrease horsepower. Paxton Superchargers offer significant horsepower at low RPMs with superior mid and high RPM performance.
A roots-type supercharger is a positive displacement supercharger that forces air into an engine with two rotating, intermeshing rotors. A centrifugal supercharger has an impeller that pulls air through the center and directs the air into a scroll using centrifugal force. The scroll resembles a large blow-dryer with a circular shape and a discharge tube. The air is directed in the scroll, pressurized and forced out of the discharge tube and into the engine.