Decatur, IN — Lingenfelter Performance Engineering (LPE) is now offering 2009-2010 Corvette owners a new C6 ZR1 High Flow LS9 Supercharger Front Inlet Cover designed to increase horsepower on stock and higher pulley ratio applications.
The Lingenfelter LS9 Supercharger cover creates a direct path of airflow from the throttle body to the supercharger, reducing inlet restriction and increasing boost. Lingenfelter chassis dyno test results on the C6 ZR1 with the supercharger cover, air intake kit and 2.6 pulley show a rear wheel performance gain of 75 horsepower over stock.
"We engineered our front supercharger cover casting based on the inlet design first used on our Lingenfelter-modified 2009 ZR1 Corvette that ran a 9.813 second quarter-mile at 145 mph," said Ken Lingenfelter, owner of Lingenfelter Performance Engineering. "With its drag strip-proven design, the supercharger cover increases airflow and horsepower while maintaining a safe level of boost for 93 Octane gasoline."
The LS9 Supercharger cover features a stainless steel 10 bolt hub to maximize durability and reliability under higher shaft speeds and increased supercharger loads. LPE engineers designed this hub to allow pulleys to be quickly and easily changed.
Cast from 356T6 aluminum, the supercharger cover is 100% leak checked and includes all new internal components with no core exchange requirements. Casting was designed with extra material to allow for the use of larger throttle bodies, including 100 mm throttles.
Lingenfelter has also specially designed an air intake system with revised duct work to connect to the new throttle body location. The inlet system features a large surface area filter with a sealed shroud to keep hot engine compartment air out of the inlet.
Installation kits include the proper idlers and/or belts required to fit the pulleys with the stock damper. Lingenfelter offers pulleys in 2.6" (19% overdrive) and 2.3" (32% overdrive) diameter versions. Combining the 2.3" pulley with LPE's 14% overdrive damper results in supercharger speed of 23,000 RPM at 6,500 RPM engine speed.
The LS9 front cover requires recalibration of the Factory ECM with either pulley size.