Like every other form of forced induction, a twin-screw supercharger is simply a device that forces a larger volume of air into an engine. Air is one part of a five-part recipe that allows an internal combustion engine to function, with fuel, spark, compression, and exhaust being the other four. The more air that enters an engine, the more power it is able to generate.
A twin-screw supercharger’s job is to capture air from the intake and throttle body, compress it within its housing, cool the air in an intercooler, and force that cold compressed air into the engine.
Twin-screw superchargers are just one option among a list of other types of superchargers including roots-style superchargers, centrifugal superchargers, and electric superchargers. Twin-screw and roots-style superchargers are very similar in design and are both belt-driven, meaning that they don’t rely on engine RPM to generate performance.
The torque and power produced by twin-screw superchargers are available right off the line, making them a good option for dragsters and applications where turbo lag just won’t do.
