Intake Manifold/Supercharger Assembly

The LS9 Roots type supercharger is a positive displacement pump that consists of 2 counter-rotating rotors installed into the lower intake manifold housing. The rotors are designed with 4 lobes and a helical twist. The rotors of the supercharger are designed to run at a minimal clearance, not in contact with each other or the housing, and are timed to each other by a pair of precision spur gears which are pressed onto the rotor shafts. The rotors are supported at each end by self-lubricating, non-serviceable bearings. The drive belt pulley is pressed onto the input shaft and is also not serviceable.

The lower supercharger assembly consists of the following components:

• Lower intake manifold housing, to include rotors, gears, bearings, and drive belt pulley
• Bypass valve
• Bypass actuator
• Charged air bypass valve
• Fuel rail with injectors
• Throttle body assembly
• Evaporative emission canister purge valve
• Inlet pressure sensor