UPDATE: Just to prove that it's got the goods, GM has released a video of its new supercharged Corvette stretching its legs to a massive 205mph (330km/h) top speed.
At a time when car makers are showing off every imaginable fuel-saving gizmo, General Motors does the math on the 6.2-litre V8 engine in its new Chevrolet Corvette ZR1 and comes up with more oomph than it expected.
The company's powertrain gurus found that the LS9 engine cranks out 476kW (638bhp) - 20 horsepower more than the estimates they made when GM took the covers off the ZR1 before Christmas.
Simply, the engine is rated at 76kW (103bhp) per litre of displacement or 1.7bhp per cubic inch (6.2 litres is equal to 376 cubic inches).
All that power will push the Corvette ZR1 to a top speed of more than 322km/h, says GM. And torque? The revised official figure is now 810Nm.
The key to power and torque is a Roots-type Supercharger with four-lobe rotors that sits atop the LS9 engine. A liquid-to-air Intercooler is integrated into the Supercharger's housing.
The engine will be hand-built at GM's Performance Build Centre in suburban Detroit, the same plant that hand-builds the LS7 V8 used in the Corvette Z06.
Corvette ZR1 - Jay Leno's Garage
Corvette ZR1. Although a ZR1 was never part of the original C6 plan, legend
has it that at an early review, CEO Rick Wagoner was so impressed that he
wondered aloud, "If that's what you can do with $60,000, I wonder what a
$100,000 Corvette would look like?"
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Corvette ZR1 - Jay Leno's Garage
Jay Leno's Garage
Corvette Racing at the Autobahn
H.P. Performance Corvettes sends another Corvette to the Autobahn to beatup
on some Porsches and Mustangs.
Watch for the close calls and wipeout!
H.P. Performance Corvettes Inc.
2012 Chevrolet Corvette ZR1 hits the Nürburgring
To demonstrate the improvements on the 2012 Corvette, Chevrolet has
returned to the Nürburgring with the range-topping ZR1.
As the video shows, the car - which features a supercharged 6.2-liter V8
engine with 638 hp (476 kW / 647 PS) and 604 lb-ft (818 Nm) of torque -
lapped the legendary Nordschleife in 7:19.63 which is more than six seconds
faster than the previous Corvette
record that was set back in 2008.
To get the improved time, the ZR1 was equipped with the new PDE performance
package which has a full-width rear spoiler and Michelin Pilot Sport Cup
Zero Pressure tires that are "optimized for warm, dry conditions to
increase cornering and handling capability."
BMW M6 F13, Chevrolet Corvette ZR1, Chevrolet Corvette Z06 (Top 3 fastest tuned RWD Sport car)
First place — Chevrolet Corvette ZR1 (C6) IPS Motorsports V&S (850 HP),
Second place — BMW M6 (F13) PP-Performance Stage 2+ (720 HP), Augustin M.
Third place — Chevrolet Corvette Z06 (C6) V&S (700 HP), Stepan K.
Результаты заездов (Results of the race):
Все результаты (All results):
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Now & Then - Corvette Stingray
Whether it's classic or brand new, a Corvette Stingray offers up a sense of
excitement few cars can match.
We pair a classic 1965 Stingray with a brand new 2014 Stingray. And when
the two legends come together it's a beautiful thing.
Top Speed Shootout! - ZR1 vs GT-R vs GT2 vs 599
It's a War of the Worlds, as we gather four of the greatest supercars from
around the globe to compete in our Top Speed challenge...
From the USA, the 2009 Chevrolet Corvette ZR1
From Japan, the 2009 Nissan GT-R
From Germany, the 2008 Porsche GT2
From Italy, the Ferrari 599 GTB
Read the story here:
2010 Chevrolet Corvette ZR1 Road Test
nside Line roasts the tires of the 2010 Chevrolet Corvette ZR1 then
explains why the car's new Performance Traction Management system makes it
harder to do ... and why that's a good thing.
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Hennessey 705 hp ZR1 Standing Mile - Warm-Up Run
John Heinricy drives the 2009 Hennessey ZR1 at the Texas Mile. This is the
first run of the event. http://www.HennesseyPerformance.com