Adjustable Aluminum Cam Pulley

The Nuke Performance Adjustable Aluminum Cam Pulley is precision-engineered in Sweden for BMW M20 engines, specifically those found in the E30 and E34 models. This component allows for precise +/- 11 degrees of valve timing adjustment, enabling tuners to optimize engine performance for both naturally aspirated and forced induction setups. The pulley is CNC-machined from high-strength, lightweight 6082 aluminum alloy, reducing rotational mass and contributing to improved engine responsiveness. Constructed for longevity and demanding use, the cam pulley features a hard-anodized outer gear to minimize wear over time. It is also equipped with abrasion-resistant Helicoil inserts for secure bolt locking and unique bolt washers that optimize tension during high-performance driving. The anodized finish provides resistance to corrosion, wear, and heat, maintaining both function and aesthetics in the engine bay. Fine-tuning is achieved by rotating the center hub: clockwise to advance cam timing and counter-clockwise to retard it. This adjustability is crucial for maximizing power, torque, and overall engine efficiency. This pulley is crafted in collaboration with leading BMW tuners and has been a trusted part for enthusiasts for nearly two decades, making it a popular choice for the classic BMW M20 engine.