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Porsche 996 Turbo/Turbo S/GT2 Evolution Motorsports Lightweight / Underdrive Power Pulley (EPK-GT2)

The Evolution MotorSports ClubSport underdrive, lightweight and strengthened crank pulley is designed to surpass the quality and technical specifications of the original as well as the upgraded GT3 crank pulleys. EVOMS engineers modeled the basic design of our upgraded turbo pulley from the latest generation OEM billet aluminum GT3 pulley, which is standard on the 2010, 3.8L GT3. When testing the OEM aluminum GT3 pulley, we found that the design was better than the OEM turbo steel pulley; however, there were many ways to improve it. Through our extensive theoretical (FEA) testing in SolidWorks, as well as in real world performance tests, EVOMS Engineers created an upgraded pulley that outperforms all of the OEM GT3 pulleys and has features that drastically improve the overall strength / durability and is suited for any higher performance 996TT/997TT/GT2.   Features: The Evolution MotorSports ClubSport crank pulley upgrade is almost 75% lighter (220g vs. 860g) than the stock steel pulley. The reduction of weight improves throttle response and overall engine performance. The EVOMS pulley is also slightly smaller (same size as the OEM GT3 pulley) which under drives the accessories, thus reduces parasitic drag and further improves engine efficiency. The critical feature of our crank pulley is the increased surface area where the pulley mounts to the crankshaft. Our design increases this mounting area by more than two times which distributes the contact load of the pulley over a larger area and eliminates the possibility of the pulley spinning loose, even at higher than stock RPM levels. Finally, the EVOMS CNC machined billet aluminum pulley looks and performs like one would expect to find on Porsche’s flagship turbo vehicle.    Specifications: • Developed by EVOMS engineers using state of the art SolidWorks CAD software • Tested and validated by EVOMS engineers using SolidWorks - Design Validation Software • Real world tested on a wide range of vehicles: from 420 HP street cars to 1000 HP race cars @ 9000 RPMS • CNC Machined from 6061-T6 aluminum (OEM pulley is steel) • Anodized black to preserve / seal the aluminum and retain an OEM appearance • Reduced rotating weight: EVOMS CS pulley is ~75% lighter than the OEM steel pulley • 50% more surface area where the pulley mates with the snout of the crankshaft (See photo below) • Underdrives the engine accessories at the OEM specified range. ~15% (Same as the OEM GT3/RS) • Incorporates machined OEM timing marks on the pulley • Balanced within less than .1 gram • Lifetime warranty – Original purchaser 
The Evolution MotorSports ClubSport underdrive, lightweight and strengthened crank pulley is designed to surpass the quality and technical specifications of the original as well as the upgraded GT3 crank pulleys. EVOMS engineers modeled the basic design o...
    Intelligent Tuning – Insanely Tuned. These are not just words; this is the SOUL of Evolution MotorSports.  With each new generation of technology, this core essence of our existence is what differentiates us from the competition. In 2001, we began the “Insanely Tuned” revolution with our over the top, high horsepower 996 twin turbos, which dominated the industry. Our perseverance and core beliefs have been substantiated with many coveted awards and current standing world records. Our vast performance innovations have set the industry standard and are currently used as the benchmark for many companies and consumers alike. While “they” try to catch up and replicate or duplicate our technologies, we have surpassed our own advancements while raising the bar even higher. Once you experience this elevated level of mind bending performance, it is a virus in your blood.Our History & Mission:Evolution: ev - o - lu - tion  (noun) A gradual process in which something changes especially into a more complex form.   Mission: We exist to satisfy our customers’ addiction to speed and passion for high performance.    Philosophy: Engineer, manufacture and offer the highest quality performance components for an elite group of extreme individuals.  Our cars are our passion, more than a means to get to and from work but an expression of who we are as people. An extension of our personalities: unique, aggressive, strong and powerful. We can help make each drive more enjoyable, more intense and less mundane.  We can help transform your car from the ordinary into the extraordinary. Experience: We have over half a century of combined experience in automotive engineering, design, fabrication, racing and many other facets of the automotive industry.  We drive and race the cars that we build components for.  We have an extensive R&D and test program that ensures our components are held in the highest standards.  Our Porsche race efforts help keep us on the cutting edge as we are constantly in search of that last ounce of power, a better “mouse trap” or ways to make the car handle or brake better.  We share your passion, your dream and the never-ending pursuit of more speed and performance.                       
    Intelligent Tuning – Insanely Tuned. These are not just words; this is the SOUL of Evolution MotorSports.  With each new generation of technology, this core essence of our existence is what differentiates us from the competition...