Supercharger Drive Pulley-3.625″

We are now offering these awesome, Blackbird Performance by R2 Motorsports V-Knurl pulleys that incorporate a number of features to significantly reduce boost and power robbing supercharger belt slippage as well as offer a low inertia, fast spooling design.

A 3.625 diameter for the Whipple 3.0l is now in stock and available (the recently changed upper pulley for Dodge Drag Paks in NHRA and NMCA competition) at an introductory price of $299.

This pulley along with our new tensioner as seen on the Factory Showdown runner up at the just completed US Nationals.