Constructed of light weight 6061T6 aluminum, the ALTA SC pulley body decreases rotational inertia of the supercharger adding response to your engine.
Holes are cross drilled through the pulley and over each groove, to increase belt grip and reduce belt slippage as your belt stretches. Also incorporated into the design are oversized belt retainers, which reduces belts from jumping off.
The ALTA Performance Supercharger pulley features a stainless steel coupler which clamps onto the supercharger shaft rather then wedging in place like other aftermarket pulleys. ALTA was the first pulley to use this clamp-on method, and it has proven to grip the supercharger shaft better than other aftermarket pulleys and it will work for those who have had other pulleys slip and cause damage to the supercharger shaft. Our hub will attach to supercharger shafts that have been worn down as much as .020" and still work perfect!
Additionally the ALTA coupler features an open installation site aperture in end of our shaft coupler which allows you to visibly verify that the shaft collar is fully seated to the supercharger shaft.
For those seeking a bit more power, the 17% is the ideal choice! Builds boost at a lower RPM giving you even more power down low where you need it, combined with another 1.5psi of boost at redline, it gives you the extra HP to conquer even the toughest challenge!
- MINI Cooper S R52 Convertible (2005-2008)
- MINI Cooper S R53 Hatchback (2002-2006)
- Pulley constructed from 6061T6 Billet Aluminum
- Black anodized
- Includes a Stainless Steel Clamp On Coupler
- Power Increase of over 20WHP
- Pulley and Coupler are balanced to within 0.1 gram at 16000RPM
Please Note! This product is not CARB certified and is only intended for "off-road" use. Check your local and federal laws prior to installation! This item cannot be shipped to customers in the State of California.