Global Performance Parts

Go Fast Bits/GFB CRANK PULLEY - NON-UNDERDRIVE

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Product Documentation

Product Information:

Part Number: 2009 - BLACK
Manufacturer: Go Fast Bits
Weight: 1 lbs.

Pricing:

Base Price: $189.00
In Stock: This product is in stock
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Product Description:



Install a GFB light-weight NON under-drive pulley kit and get better throttle response and more power!


How do they do this?

1. Less weight - GFB's pulleys are manufactured on the latest Multi-Axis CNC machines from the highest grade 6061-T6 aluminium billet, making them immensely lighter than their factory steel counterparts. This lower weight yields a large reuction in the rotating inertia of the belt train, allowing the engine to accelerate faster. The effect is similar to fitting a lightened flywheel and is particularly noticeable in the lower RPM range before the turbo spools up. This is because the power required to accelerate a heavy pulley accounts for a much greater proportion of the available power at low RPM.
2. This replacement pulley is a NON UNDER DRIVE engine CRANK PULLEY and is a light weight replacement for the original equipment pulley.  Fits all Subaru EJ20 and EJ25 engines. 

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