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2009 Chevrolet LS9 Supercharged V8

 

 
2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Supercharger Intercooler
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Piston Pack
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Piston Pin
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Piston Pin
 
2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Piston Shape
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Supercharger Height
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Supercharger Butterfly
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Supercharger Gears
 

 
2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Oil Pump Gears
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Timing Chain Gear Set
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Valve Train
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Water Pump
 
2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Supercharger Intercooler
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
3-D Sectional of LS9
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
LS9 Intercooler - Intake
 		 2009 Chevrolet LS9 Supercharged V8, 638 horse power.
Chevrolet LS9 - 638 HP
 

 



 

The LS9 is a 6.2 L (6,162 cc/376.0 cu in) supercharged engine, based on the LS3; the LS7 block was not used due to the higher cylinder pressures created by the supercharger requiring the thicker cylinder walls of the LS3. Cylinder dimensions are now 4.06 in (103.25 mm) bore with a 3.62 in (92 mm) stroke. It is equipped with an Eaton four-lobe Roots type supercharger. Power output is 638 hp (476 kW) at 6500 rpm and 604 lb·ft (819 N·m) of torque at 3800 rpm.

The ZR1 engine is a modified LS3, designated the LS9, producing 638 hp (476 kW) and 604 ft·lbf (819 N·m). of torque, making this the most powerful production Corvette to date. The LS9 has a sixth-generation Eaton TVS R2300 roots 4-lobe supercharger with an intercooler. The supercharger's four-lobe design offers improved efficiency over three-lobe models. To avoid changes to the hood appearance, the supercharger's output was split into two halves. Each cylinder bank has an intercooler. The intercoolers are from Behr, utilizing an air-to-water, dual-brick design.

The LS3 engine block will be used because the cylinder walls of the LS3 are thicker than the Z06's LS7 since the LS3 uses smaller pistons. Oil injectors, for improved cooling and noise reduction, will be used for the first time in a production Corvette. Connecting rods and the inlet valve will be made of titanium. Heads will be from a special heat resistant aluminum alloy from the LS9's manufacturing process. The camshaft lift was reduced from the LS7's to improve idle quality. With the addition of the supercharger to the 6.2 liter LS9, the higher lift camshaft was no longer necessary to achieve horsepower targets.

Lubrication will be provided by an improved version of the LS7's dry sump system.
 

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