Granatelli Performance Pulleys
Under drive pulleys or performance pulleys refer to aftermarket crankshaft or accessory pulleys which are designed to drive your vehicle's accessories at a rather slower rate than the stock ones. The parts were originally intended for race cars in the 1950s and the 60s, those autos whose engines had been modified and ran at a higher rpm for longer periods of time than the manufacturers had intended them to. Therefore, it was necessary to under drive the belt-driven accessories to keep them from burning out and for the engine to run reliably. At present, pulleys are being marketed as performance enhancers that actually produce additional power for the vehicle while reducing the parasitic drag caused by belt-driven accessories, or by being lighter and reducing rotational mass, or both. The Granatelli Performance Pulley is one example of these under drive pulleys which are available in the auto parts market. This pulley can give your vehicle a considerable power boost since it will keep the power generated by the engine from being spent on the various accessories. By saving this power, it can be delivered to the wheels for an improved acceleration. The performance pulley that is applicable to the 2005 07 Mustang will improve your vehicle's mileage and throttle response. Aside from that, the part is sure to contribute additional 15hp and reduce accessory drag. It is precision balanced and SFI approved, as well as a direct original equipment manufacturer replacement. The moment you procure the said product, expect that all the necessary hardware needed for its installation is included in the package. And mounting the said part only takes about 1-2 hours using basic hand-held tools.
