Description
Upgrade your vehicle’s performance effortlessly with the GFB light-weight under-drive pulley kit, engineered for enhanced throttle response and increased power. Crafted from premium 6061-T6 aluminum billet using cutting-edge Multi-Axis CNC machines, GFB’s pulleys weigh significantly less than factory steel counterparts, shedding up to 2kg on average and over 7kg for the GFB 300ZX pulley. This reduced weight leads to a substantial decrease in the rotating inertia of the belt train, resulting in faster engine acceleration, especially in the lower RPM range before the turbo spools up, akin to the impact of a lightened flywheel.
Beyond mere weight reduction, GFB’s under-driving design further amplifies power gains. By reducing the size of the crank pulley, the kit slows down accessories and alleviates the driven load at higher RPM, without compromising efficiency between idle and 1400RPM. The under-drive ratio comes into play as revs increase, progressively diminishing wasted power and providing significant power gains without upping the boost.
Enter the Atomic Boost Controller, a game-changer tested on an MY02 Subaru WRX with only a turbo-back exhaust modification. When compared to the factory controller, the Atomic demonstrated impressive results. The dyno graph showcases the Atomic boost curve in green, outperforming the factory curve in blue, especially in the lower rev range with gains as high as 18kW (23.4hp) at the wheels. The Atomic enables the boost to rise earlier than the factory controller, translating to superior acceleration from 1700RPM earlier in the rev range without exceeding the factory peak boost level.
Crucially, the MY01-02 WRX model benefits significantly from this modification due to its conservative factory boost mapping. To inject vitality into your MY01-02 WRX, consider the Atomic or Reactor boost controller for the most cost-effective upgrade available. Explore further customization with the Honda crank pulley, tailored for the B16A engine, available in striking Red and Blue options. Elevate your driving experience with these high-impact modifications for unparalleled performance.
