The Alta lightened crank pulley is simply designed to increase horsepower and torque by reducing rotational mass for better efficiency and less parasitic drivetrain loss. This translates into more power, torque and throttle response. Weighing only .65lbs, the Alta pulley shaves off 2.3lbs of rotational mass from the crankshaft. The Alta crank pulley is available in stock (0%) size as well as a 2% oversize option. The 2% oversize pulley, in addition to weight savings, gives you even more performance as it will allow the supercharger to produce more boost pressure. For example, If you already have a 15% reduction supercharger pulley, it will function as a 17% when coupled with the 2% oversize pulley and so on. All Alta crank pulleys include a 5 year warranty against material and workmanship defects.
FITMENT:
Mini Cooper S R53 2002-2006
Dimension:6x6x2
Model No:AMP-ENG-520
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