Paladin
KC Hill
Craig Hill
Oracle of DelphiChevrolet Corvette ZR1
February 26th 2008 13:03
The ZR1 is a high performance version of the Chevrolet Corvette. It replaces the similar Z06 model as the most powerful Corvette currently in production. The ZR1 designation has been offered as an optional package on previous Corvettes. C3 and C4 Corvettes from 1971-1995 both had a ZR-1 option. Please note the older C3 optional ZR-1 had a different lettering than the newer C6 ZR1 package.The ZR1 engine is a modified LS3 designated the LS9. 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 prevent hood modifications, the supercharger's output was split into two halves. Each cylinder bank has an intercooler. The intercoolers are Behr air-to-water dual-brick designs.The LS3 motor block will be used because the cylinder walls of the LS3 are thicker than the Z06's LS7. Oil injectors, for improved cooling and noise reduction, will be used for the first time in a production Corvette. Connecting rods will be made of titanium. Heads will be from a special heat resistant aluminum alloy from the LS9 manufacturing process. Intake valves are made of titanium. The camshaft lift was reduced from the LS7's 15 mm (0.5906 in) to 14.1 mm (0.5551 in) to improve idle quality.Lubrication will be provided by an improved Z06 LS7 dry sump system.
The ZR1 flywheel has been improved over the 2008 Z06. The flywheel was upgraded by going from six to a nine bolt design.The transmission is a 6-speed manual Tremec TR6060 with a MH3 gearset. The 2008 Z06 featured the MM6 gearset.
The ZR1 features blue badges, engine valve covers, and brake calipers. The hood contains a polycarbonate window which will allow the intercooler to be viewable. Doors and rear body are from the 2008 Z06. A larger than stock spoiler will span the top rear bumper. Functional fender vents provide engine cooling. The lettering "LS9 Supercharged" can be viewed on top of the supercharger through the hood window.
Price: Estimated Base $90,000-$120,000 USD
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