TOMEI – Adjustable Cam Pulleys – 4G63 EVO I,II,III

SKU: 4181
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Unleash the power of our Super Lightweight Duralumin Pulley System, meticulously crafted from an aluminum alloy with copper, magnesium, and manganese. Ideal for the aircraft and automotive industry, this precision-engineered system ensures super-high durability and extreme precision, making it perfect for drag racing cars with 1000+ horsepower. With an eye-catching almite coating, individual designs for IN and EX pulleys, and a simple adjustment scale, this 497g powerhouse is tailored for Mitsubishi Lancer Evolution I-III models. Elevate your ride with the perfect blend of innovation and performance.

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Introducing our Super Lightweight 100% Duralumin Pulley System, meticulously engineered for optimal performance in the dynamic realm of automotive excellence. Crafted from a specialized alloy of aluminum (comprising over 90%), copper (approximately 4%), magnesium (0.5%-1%), and manganese (less than 1%), our pulley system exhibits exceptional ductility and malleability prior to the final heat treatment. This treatment initiates a transformative reaction between the aluminum and magnesium, resulting in heightened hardness and tensile strength.

In the realm of aviation, where weight is of paramount importance, Duralumin’s unparalleled lightness and other favorable physical properties have positioned it as a staple material. Our innovative design extends this super-lightweight attribute to both the pulley’s outer and inner plate components, ensuring a body that defies conventional weight standards.

The Super-High Durability of our pulley system is achieved through a strategic coating of hard almite on the surface. This enhancement exponentially elevates the pulley’s resilience, making it suitable for high-performance applications such as drag racing cars exceeding 1000 horsepower and 10,000 RPM.

Distinguished by its precision, our pulley system is exclusively tailored for each IN and EX pulley. The individual design ensures that the adjustment part reaches its zenith when the engine is at Top Dead Center (TDC), facilitating seamless valve timing adjustments. The Extreme High Precision of our pulley and inner plate, meticulously curved from Duralumin, achieves unparalleled accuracy, particularly in the pulley gear, enabling a precise transfer of drive from the timing belt.

Not merely a powerhouse of performance, our pulley system is an aesthetic marvel. Crafted from Duralumin and adorned with an almite coating, its design enhances both form and function. The color of the pulley serves as a testament to the strength of the hard almite coating, showcasing the robustness within.

Simplicity meets practicality with our Simple Adjustment Scale, designed to address real-world scenarios where adaptability is key. The sliding type and Duralumin gear material further exemplify our commitment to excellence. Weighing a mere 497g each, our pulley system caters specifically to Mitsubishi Lancer Evolution I – 4G63, Mitsubishi Lancer Evolution II – 4G63, and Mitsubishi Lancer Evolution III – 4G63 models. Elevate your driving experience with our precision-engineered Duralumin Pulley System – where innovation meets performance seamlessly.


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