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GM has announced today the official specs for 2009 Chevrolet Corvette ZR1 powerplant. ZR1 will be powered by GM's latest and most powerful engine ever, the hand-built 6.2 liter LS9 supercharged V8. It will produce 638-hp of horsepower and 604 lb-ft of torque. Now that means the LS9 puts out nearly 103 horses per liter. Amazing stuff. Corvette ZR1 is expected to have a top-speed of more than 200mph (322 km/h) and will wear Michelin Pilot Sport 285/30ZR19s at front and 335/25ZR20s at the rear axle.Quick Facts & Expectations from new 09 Chevrolet Corvette ZR1
- LS9 V8 is the most powerful automotive production engine ever manufactured by General Motors.
- It is hand-built and tested GM's Performance Build Center in Wixom, Mich.
- LS9 is SAE Certified at 638 hp and 604 lb-ft of torque.
- It puts out nearly 103 horses per liter.
- GM expects the LS9 to be the most fuel efficient 600+hp engine in the world.
- ZR1 designation revived after 13 years.
- ZR1 gets a six-speed manual transmission with race-hardened gears and dual-disc clutch technology which is not offered in any other model.
- The aluminum and magnesium frame of the current generation Z06 forms the basis of the new ZR1 model.
- Corvette Z06 & ZR1 use the same Tremec 6060 gearbox with unique ratios.
- Expected top-speed of more than 200mph (322 km/h).
- ZR1 comes with a price tag of little less than $100,000.
- Sale will start in summer of 2008 as a 2009 model.
Video: 2009 Chevrolet Corvette ZR1 Review by Cars.com.
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2009 Chevrolet Corvette Comparison: ZR1 Vs Z06
2009 Chevrolet Corvette ZR1 V8 Photos
| POWERTRAIN/CHASSIS For 2009 CHEVROLET CORVETTE ZR1 | |
| Drivetrain layout | Front engine, RWD |
| Engine type | Supercharged 90 V-8 alum block/heads |
| Valvetrain | OHV, 2 valves/cylinder |
| Displacement | 376 cu in/6162 cc |
| Compression ratio | 9.1:1 |
| Power (SAE NET) | 620 hp (est) |
| Torque (SAE NET) | 595 lb-ft (est) |
| Weight to power | 5.4 lb/hp (est) |
| Transmission | 6-speed manual |
| Final drive ratio | 3.42:1 |
| Suspension, front; rear | Control arms, transverse leaf spring, anti-roll bar; control arms, transverse leaf spring, anti-roll bar |
| Brakes, front; rear | 15.5-in vented, drilled, disc; 15.0-in vented, drilled disc, ABS |
| Wheels, front; rear | 10x19; 12x20 in, cast aluminum |
| Tires, front; rear | 285/30ZR19, 335/25ZR20 Michelin Pilot Sport 2 |
| DIMENSIONS For 2009 CHEVROLET CORVETTE ZR1 | |
| Wheelbase | 105.7 in |
| Length x width x height | 176.2 x 75.9 x 49.0 in |
| Curb weight | 3350 lb (est) |
| Weight dist., f/r | 52/48% |
| Seating capacity | 2 |
| Headroom, f | 38 in |
| Legroom, f | 43 in |
| Shoulder room, f | 55 in |
| Cargo volume | 22 cu ft |
2009 Chevrolet Corvette ZR1 V8 Photo Gallery
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Detailed Specs for 2009 Chevrolet Corvette ZR1's LS9 6.2L SUPERCHARGED V-8 Engine.
Displacement (cu in / cc): 376 / 6162
Bore & stroke (in / mm): 4.06 x 3.62 / 103.25 x 92
Block material: cast aluminum.
Cylinder head material: A356-T6 rotocast aluminum.
Valvetrain: overhead valve, 2 valves per cylinder.
Fuel delivery: SFI (sequential fuel injection).
Compression ratio: 9.1:1
Horsepower / kW: 638 / 476 @ 6500 rpm
Torque (lb-ft / Nm): 604 / 819 @ 3800 rpm
Fuel shut-off (rpm): 6600
Recommended fuel: premium required.
Exhaust manifolds: stainless steel.
Main bearing caps: forged steel.
Crankshaft: forged steel.
Camshaft: hollow steel; 0.555-in (14.1 mm) lift.
Connecting rods: forged titanium.
Valves: intake: titanium, exhaust: hollow steel.
Valve lifters: hydraulic roller.
Supercharger: R2300, four-lobe "Roots" type (2.3L).
Additional features: piston oil-spray cooling; direct-mount ignition coils; 11-rib accessory drive.