How Does a Twin Screw Supercharger Work?

In a twin-screw style supercharger, the two rotors are designed to mesh with one another and compress the air forced between them. So while they're both similar in design, twin-screw superchargers compress the air directly while roots superchargers create pressure in the manifold that compresses the air.

Are twin-screw superchargers good?

Because of their ability to produce an abundance of boost (HP and torque) at virtually any engine rpm, the Twin Screw and Roots type are the two most logical choices for supercharging. Both are essentially positive displacement SUPERCHARGERS (each revolution produces “X” cfm regardless of engine rpm).

How much horsepower does a twin-screw supercharger add?

TWIN SCREW – Compresses and stores air charge between the rotors – not the manifold. Discharges air based on throttle position (see Twin Screw vs. Roots). 40% AND UP HORSEPOWER INCREASE – 40%-500% increase depending on engine modifications and boost levels (up to 35 psi).