Jackson Racing Superchargers

Jackson Racing we exclusively use the Eaton Supercharger. A supercharger is a positive displacement pump. Its purpose is to increase air pressure and density in the intake manifold. It does this by pumping more air than the engine would use without a supercharger. The supercharger is matched to the engine by its displacement and belt ratio, and can provide excess airflow at any engine speed. This concentrated charge of air provided by the supercharger results in a more powerful combustion stroke in the engine's cylinders, resulting in improved performance over non-supercharged vehicles. Why not a Turbocharger? A supercharger is connected directly to the crankshaft by a belt unlike a turbocharger which is driven by exhaust gases. An Eaton supercharger provides improved horsepower and torque, at lower engine rpm's, by pumping extra air into the engine in direct relationship to crankshaft speed. The positive connection yields instant response, in contrast to turbochargers, which must overcome inertia and spin up to speed as the flow of exhaust gas increases. The supercharger is a way to get around "turbo lag". The lubrication system also differs, in that, the supercharger is self-contained whereas the turbocharger requires engine oil. The end result is a highly reliable system with instantaneous throttle response. There are several reasons why Jackson Racing uses the Eaton Supercharger. Keep reading to find out what makes the Eaton Supercharger special. 1. The Eaton supercharger is essentially a Roots blower pump, with one substantial design wrinkle; each rotor has been twisted 60 degrees to form a helix. The two counter rotating rotors have three lobes, which intermesh during operation. These twisted rotors, along with specially designed inlet and outlet port geometry, help to reduce pressure variations resulting in a smooth discharge of air and a low level of noise during operation. This arrangement also improves efficiency over traditional Roots superchargers. With helical rotors and an axial inlet the Eaton supercharger can be spun to up to 14,000 rpm, thereby reducing package size. 2. The Eaton supercharger system incorporates a specially designed bypass valve, which is actuated by a vacuum motor near the throttle body, and recirculates the supercharger air flow when boost is not required. During typical driving conditions, the engine is under boost around 5% of the time, which means the remaining 95% of the time the engine is under vacuum, allowing for better fuel economy and a quieter ride. In addition, the helix angled rotors, along with specially designed inlet and outlet port geometry, also reduce pressure variations resulting in a smooth discharge flow and a lower level of noise during operation. The associated ducting and mounting used in installing the supercharger can play a major role in reducing the noise emitted by the supercharger. 3. The reliability of the Eaton supercharger was the first criteria, which was addressed during early design development of the supercharger. Dedicated engineers with backgrounds in compressors, gearing, tribology and metallurgy, as well as thermal and structural analysis enabled Eaton to find solutions to many reliability concerns. In addition, strict customer durability test criteria have been achieved. Successful completion of numerous 500 hour durability tests established a firm grasp on achieving a reliable product. In addition, numerous vehicles have successfully completed 100,000 mile, OEM (original equipment manufacturer), vehicle durability tests. Improvements in bearing and seal designs also aided in a product which meets all OEM durability criteria. From Jackson Racing's Website Click here! For more information their products and work