Ok Ford take that>>>ZR1

[MR.hp]

Nice numbers go a pushrod engine huh


DETROIT (AP) -- General Motors Corp. says the engine for its 2009 Chevrolet Corvette ZR1 sports car has an output of more than 638 horsepower, reaching a top speed of more than 200 miles per hour. Stock

Company officials said Friday the LS9 V-8 is the most powerful high-performance engine GM has ever made.

A polycarbonate window in the hood provides a view of the LS9 engine, which is hand-built at GM's plant in the Detroit suburb of Wixom.

The Corvette ZR1 arrives in showrooms this summer.

[MR.hp]

But Wait there's more

Official Press Relese

Chevrolet Announces Certified Power Ratings for the New Chevrolet Corvette ZR 1: 638 HP from the Supercharged LS 9 V-8
04/25 12:01 pm (PR)
Story 0007 (GM)

PONTIAC, Mich., April 25 /PRNewswire/ -- When it was introduced at the North American International Auto Show in Detroit earlier this year, the 2009 Chevrolet Corvette ZR 1's power was estimated at 100 horsepower for each of its 6.2 liters of displacement. GM Powertrain has completed SAE certification of the ZR 1's supercharged LS 9 V-8 and the results exceed the estimate: 638 horsepower (476 kW) and 604 lb.-ft. of torque (819 Nm).

The LS 9's output is nearly 103 horses per liter, or just about 1.7 horses for each of the engine's 376 cubic inches. It is unquestionably the most powerful automotive production engine ever manufactured by General Motors and enables the Corvette ZR 1 to achieve a top speed of more than 200 mph (322 km/h).

"One of the most amazing things about the Corvette ZR 1 is the level of refinement that our designers and engineers have attained. Even with all that power, this car has road manners that will allow our customers to enjoy it on the streets as a daily driver, and on the track," said Chevrolet General Manager Ed Peper.

The Corvette ZR 1 goes on sale this summer. Its 638 -hp supercharged engine is complemented in the chassis by heavy-duty components not offered in any other model, including a six-speed manual transmission with race-hardened gears and dual-disc clutch technology that delivers exceptional clamping power and lower inertia, as well as strengthened axle components.

Fuel economy testing has not been completed, but engineers are confident the ZR 1 will be the most fuel-efficient 600 -plus-horsepower car on the market.

The LS 9 engine is hand-built by specially trained technicians at GM's Performance Build Center in Wixom, Mich. It is a unique, small-volume engine production facility that also builds the Chevrolet Corvette Z 06's LS 7 engine and other high-performance GM production engines.

"Developing the LS 9 involved more than simply striving for a great horsepower number. Endurance and reliability testing have shown the engine to be robust and low-maintenance, just like other engines in the small-block family," said Sam Winegarden, executive director, engine engineering for GM Powertrain. "That it is distinguished as the most powerful engine ever from General Motors is a source of immense pride among everyone involved with the LS 9."

Supercharged aspiration

The key enabler of the LS 9's performance is the industry's first production application of a new, positive-displacement Roots-type supercharger that has a unique four-lobe rotor design. Its design promotes quieter and more efficient performance, while the large, 2.3 -liter displacement ensures adequate air volume at high rpm. Maximum boost pressure is 10.5 psi (0.72 bar). It is teamed with an integrated charge cooling system that reduces inlet air temperature for maximum performance.

"The combination of large displacement and the new, four-lobed rotor design broadens the effective range of the supercharger, allowing the engine to make more power at lower rpm and sustain it throughout the power band," said Winegarden. "The low-end torque is tremendous and the high-rpm charge from the supercharger is simply amazing."

A raised hood provides adequate clearance for the LS 9, while a polycarbonate window in the hood provides a view of the engine beneath it.

LS 9 details

The LS 9 features many unique design and manufacturing details that support its high-performance nature. They include:

-- Aluminum cylinder block with iron cylinder liners that are finish-bored and honed with a deck plate installed
-- Forged steel crankshaft with a nine-bolt flange
-- Titanium connecting rods and forged aluminum pistons
-- Stronger, rotocast cylinder heads with 2.16 -inch (55 mm) titanium intake valves and 1.59 -inch (40.4 mm) hollow-stem, sodium-filled exhaust valves
-- Camshaft with 0.555 -inch (14.1 mm) lift for excellent idle and low- speed driving qualities
-- A dry-sump oiling system with 10.5 -quart (9.9 liters) capacity -- Integrated oil cooler and piston-cooling oil squirters -- Intercooler cover visible through the hood window that features ZR 1 - unique blue accents and "LS 9 SUPERCHARGED" embossed on the left and right sides

General Motors Corp. (NYSE: GM), the world's largest automaker, has been the annual global industry sales leader for 77 years. Founded in 1908, GM today employs about 266,000 people around the world. With global headquarters in Detroit, GM manufactures its cars and trucks in 35 countries. In 2007, nearly 9.37 million GM cars and trucks were sold globally under the following brands: Buick, Cadillac, Chevrolet, GMC, GM Daewoo, Holden, HUMMER, Opel, Pontiac, Saab, Saturn, Vauxhall and Wuling. GM's OnStar subsidiary is the industry leader in vehicle safety, security and information services. More information on GM can be found at www.gm.com.

Specifications
LS 9 6.2L SUPERCHARGED V-8

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: A 356 -T 6 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: R 2300, four-lobe "Roots" type (2.3L)
Additional features: piston oil-spray cooling; direct-mount ignition coils; 11 -rib accessory drive

SOURCE General Motors Corporation

Take that you superchaged F**d guys

[Pool Boy]

Not bad for a 70,000 dollar car

[MR.hp]

actually the ZR1 is like 100k

[Z28SSMAN]

ZR1

[JJRP57]

That would be a fun car to .........CRASH!!! .
just kidding sound bad as* to me!