Lingenfelter L250110309 Lingenfelter C6 ZR1 Corvette Supercharger Front Cover 2009-13 v2.2 - Manual (Page 3)

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Lingenfelter High Flow LS9 Supercharger Front Cover, aka “snout”, specifications:
• The Lingenfelter front supercharger cover casting was designed to provide a more direct path
for the airflow from the throttle body to the supercharger. This provides reduced inlet restriction
(reduced pressure drop) resulting in increased boost and reduced supercharger work. This
results in reduced supercharger parasitic losses, reduced supercharger outlet temperatures and
increased horsepower - especially at higher supercharger speeds.
• The cover casting is based on the inlet design first used on the Lingenfelter modified 2009 ZR1
that has run 9.813 seconds at 145.74 mph in the quarter mile.
• Drag strip, chassis dynamometer and engine dynamometer proven design.
• The Lingenfelter cover is cast from 356T6 aluminum.
• The bearing support area is already machined to provide clearance for small diameter pulleys.
• All castings are 100% leak checked using an OEM decay type leak checking process
• Casting has also been designed with extra material in order to allow for the use of larger throttle
bodies including 100 mm throttles. Inlet porting and/or machining are required for proper 100 mm
throttle body fitment.
• Supercharger cover includes all new internal components – no core exchange required.
• For increased durability and reliability, especially under higher shaft speeds and increased
supercharger loads, a stainless steel 10 bolt hub is pressed and then pinned onto the
supercharger cover drive shaft.
• Pulleys are available from Lingenfelter Performance Engineering in 2.67” (19% overdrive) and
2.38” (32% overdrive) diameter versions. These measurements are as measured with a 2.5 mm
check ball. If measuring the pulley diameter directly with a caliper the diameters will be closer to
2.60” and 2.35”.
The LPE front cover kit is not supplied with a pulley so you must order a supercharger pulley to go
with this cover. Different belt and idlers are also required depending on the pulley size and damper
size you have selected. See the Table 1 on page 35 for information on the supercharger speeds
for different pulley combinations and for information on the required idler kits and belts needed for
different pulley combinations.
For an otherwise stock engine on premium pump fuel LPE recommends the use of the 2.67” pulley.
Both pulley sizes require recalibration of the production ECM.
For 2009-2013 ZR1 Corvette applications the LPE LS9 supercharger cover requires the use of a new
air intake system, LPE part number L650150309. This air intake system features revised duct work
to connect to the new throttle body location along with a large surface area filter with a sealed filter
shroud designed to keep unwanted hot engine compartment air out of the inlet.
Read the entire instruction manual before beginning installation. Many of the stock parts will
be used in reassembly. Some steps may require two (2) people.
When referencing the side of the vehicle, the driver side of the vehicle is considered the left
side and the passenger side of the vehicle is considered the right side of the vehicle.
Torque value warning - the torque values for the fasteners are provided in metric (Nm) and
then imperial units. For the imperial units some are referenced in lb-ft and others in lb-in. Make
sure you notice the difference and set your torque wrench correctly.
2.