The GReddy/Trust Lightweight Pulley Kit for the Nissan Skyline R32 GTR is engineered to deliver improved throttle response and smoother rev characteristics without compromising factory reliability. Crafted from precision-machined duralumin aluminum, this kit replaces the heavier OEM steel pulleys, reducing total rotational mass by approximately 300–400 grams. This reduction in weight directly enhances engine efficiency, allowing the RB26DETT to rev more freely and respond faster to throttle input for a sharper, more connected driving experience.
Unlike underdrive pulley kits that alter pulley diameters and disrupt accessory performance, the GReddy/Trust system retains the exact OEM sizing and belt ratios. This ensures that the alternator, power steering pump, and water pump continue to operate at their intended speeds, maintaining consistent electrical charging, proper steering assist, and stable cooling efficiency. The design philosophy prioritizes balanced performance—delivering measurable gains of 2–4 wheel horsepower on dyno testing—without any trade-offs in daily drivability or long-term reliability.
For Nissan Skyline R32 GTR owners looking to refine their RB26’s performance through intelligent engineering, the GReddy/Trust Lightweight Pulley Kit offers the ideal combination of reduced rotational inertia and factory-level precision. It’s a true performance enhancement for those who appreciate subtle but meaningful improvements in engine responsiveness, helping the legendary R32 GTR feel even more alive under throttle while preserving its OEM harmony and dependability.
- Kit Includes water pump, power steering and alternator pulleys
Questions & Answers
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Sounds too good to be true! Are there any disadvantages of running this over OEM such as lower alternator charging, heavier steering, etc.?
Hi, underdrive pulleys can cause those exact issues by slowing down your accessories (like a weaker alternator charge or stiffer steering at low speeds). But this GReddy kit avoids that entirely. It keeps the exact same diameters as your OEM pulleys, so everything spins at stock speeds: full alternator output, normal power steering boost, and proper water pump flow. The magic is in the weight savings alone—swapping heavy steel for lightweight aluminum (about 30-40% lighter overall) reduces 'rotational drag' on the engine's front end. Think of it like upgrading to lighter wheels on your car: the rolling resistance and gearing stay the same, but the whole setup feels snappier to accelerate because there's less mass fighting the engine's torque. Hope this helps!