Corvette (C6) 2009 Chevrolet Corvette ZR1 Thread

[Merc1]

Edmunds Video:

Exclusive Spy Video and Photos: 2009 Chevrolet Corvette ZR1


A real monster!


M

 

[CarGuy]

My prediction is that it i going to be just as fast as a CallawayC16. Putting all that power on the road is an issue.

http://www.roadandtrack.com/assets/download/CallawayC16_dp.pdf

 

[Merc1]

2009 Chevrolet Corvette ZR1 Certified for an Outrageous 638 hp, 605 lb-ft

As if there weren’t enough superlatives surrounding the 2009 Chevy Corvette ZR1, we learn General Motors undersold the grunt of its most expensive and most powerful production Corvette ever.

We were already enthralled as we dreamed of an estimated 620 hp at 6500 rpm and 600 lb-ft of torque at 4000 rpm from its supercharged LS9 6.2-liter V-8. Not so fast, says GM to anyone wed to those impressive figures—it’s actually more powerful!

Having completed SAE certification for the first factory-built Vette with forced induction, the true numbers are a dizzying 638 hp and 604 lb-ft of torque. Do the math and that’s nearly 103 horses per liter, or just about 1.7 hp for each of the engine’s 376 cubic inches. Well worth the expected hundred grand price tag (or about $110,000 for the loaded 4LZ trim level).

GM says it has not completed its fuel economy testing, but engineers assure us it will be “the most fuel-efficient 600-plus-horsepower car on the market.” We actually thought it was illegal to put the words ‘fuel efficient’ and ‘600 horsepower’ in the same sentence—and given that enthusiasts likely will be willing to maim one another for one of only 2000 ZR1s (all with handmade engines) to be built a year, we suggest anyone who asks about mpg be immediately disqualified from ownership.

This snorting beast goes on sale in August or September.


2009 Chevrolet Corvette ZR1 Certified for an Outrageous 638 hp, 605 lb-ft - Car News/Latest News & Reviews/Car Shopping/Hot Lists/Reviews/Car and Driver - Car And Driver


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[PanterroR]

CHEVROLET ANNOUCES CERTIFIED POWER RATINGS FOR THE NEW CHEVROLET CORVETTE ZR1: 638 HP FROM THE SUPERCHARGED LS9 V-8

PONTIAC, Mich. – When it was introduced at the North American International Auto Show in Detroit earlier this year, the 2009 Chevrolet Corvette ZR1's power was estimated at 100 horsepower for each of its 6.2 liters of displacement. GM Powertrain has completed SAE certification of the ZR1's supercharged LS9 V-8 and the results exceed the estimate: 638 horsepower (476 kW) and 604 lb.-ft. of torque (819 Nm).

The LS9'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 ZR1 to achieve a top speed of more than 200 mph (322 km/h).

"One of the most amazing things about the Corvette ZR1 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 ZR1 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 ZR1 will be the most fuel-efficient 600-plus-horsepower car on the market.

The LS9 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 Z06's LS7 engine and other high-performance GM production engines.

"Developing the LS9 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 LS9."

Supercharged aspiration
The key enabler of the LS9'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-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 LS9, while a polycarbonate window in the hood provides a view of the engine beneath it.

LS9 details
The LS9 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 ZR1-unique blue accents and "LS9 SUPERCHARGED" embossed on the left and right sides

Specifications

LS9 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:
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


Source: Officially Official: Corvette ZR1 makes 638 hp and 604 lb-ft - Autoblog

 

[Sunny]

It is going to kick some serious exotic asses.

 

[PanterroR]

Oh you bet!

 

[zetableh]

Oh, and the Euros like to say we can't extract horsepower from an engine...

 

[Merc1]

2009 Chevrolet Corvette ZR1 Top Speed Run

Video:

New Corvette ZR1 Tops Out at 205 MPH - Brightcove


Article:

2009 Chevrolet Corvette ZR1 Goes 205 mph-Plus!


M

 

[GTA45E]

Amazing, nice find Merc1!

(I wonder how this will stand up to the SL65 BS in a heated street fight.)

 

[Zafiro]

yesterday I was doing 205 with my car but 205 km/h

 

[PanterroR]

Corvette ZR1 production set at 2,000 units worldwide

Corvette ZR1 chief engineer Tadge Juechter recently sat down to participate in a live chat on GMNext to answer questions about Chevy's new supercar, with topics ranging from fuel-economy to production numbers.

GM hasn't run its fuel economy test yet, but in a previous release from the General, it expects the ZR1 to be the most fuel-efficient 600-hp vehicle on the market. Juechter did say that the ZR1, "will be somewhat less [fuel-efficient] than a Z06," which is currently rated at 15/24 by the EPA, "and we expect a small gas-guzzler tax [on the ZR1]." Production will be limited to 2,000 units each year for worldwide consumption and pricing will be revealed sometime this month.

Juechter went on to say that ZR1 accessories wouldn't be made available for lesser Corvette models, so buyers won't be able to option up for carbon-ceramic brakes or Michelin tires on their Z06s. When asked if engineers considered all-wheel-drive for the ZR1, he emphasized that making the vehicle as lightweight as possible was a top priority and that an AWD system "would have added too much mass." And on the topic of price gouging by dealers, Juechter said only one thing: "We're strongly encouraging dealers to charge MSRP." Good luck on that.


Source: Corvette ZR1 production set at 2,000 units worldwide - Autoblog

 

[Zafiro]

I heard the price in Sweden for ZR1 is 1.5 million kronor, similar to a 997 Turbo.

 

[Merc1]

We knew the 2009 Chevrolet Corvette ZR1 was likely going to be priced right around 100 grand when it finally hit the showroom floor, and GM hit the target.

The ZR1's base MSRP of $103,300 (including an $850 destination charge) moves the $105,000 number thanks to a $1700 gas guzzler tax, but we're guessing no one lining up to buy the fastest and most technically advanced production Corvette of all time will mind in the least.

2009 Chevrolet Corvette ZR1 priced at $105,000, hits 0-60 in 3.4 seconds, quarter mile in 11.3 - Auto News - Motor Trend

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[Zafiro]

When are we going to see actual tests of this beast?

 

[CarGuy]

• $103,300 MSRP (including $850 destination charge)
• $105,000 ($1,700 gas guzzler tax)
• EPA-estimated fuel economy of 14 city and 20 highway
• 0-60 mph in 3.4 seconds
• 0-100 mph in 7.0 seconds
• Quarter-mile elapsed time of 11.3 seconds at 131 mph
• 205 mph top speed

 

[siko]

Corvette ZR1 Laps the Ring in 7:26.4; Beats Nissan GT-R

Corvette ZR1 Laps the Ring in 7:26.4, Beats the 2009 Nissan GT-R

GM’s 640Hp and $103,000 Corvette ZR1 has posted one of the fastest times ever recorded on the Nurburgring race track for a totally stock production car: 7 minutes and 26.4 seconds. And yes, the ZR1 has shaved almost three seconds off the 2009 Nissan GT-R’s official time of 7:29.03.

According to Corvette Chief Engineer Tadge J. Juechter, the ZR1 tested was bone stock with the exception of the communications and safety equipment. The tires were production Michelin Pilot Sport 2 which have been developed specifically for the ZR1 while chassis alignment and vehicle height were set to factory specs. -Continued


Likewise, Juechter said that the engine calibrations were absolutely stock, emissions compliant and the car ran on pump (not racing) fuel. In other words, it was the same vehicle as the ones that will roll off the production line in Bowling Green, Kentucky and sold around later this summer.

[Source: CarScoop]

 

[bmwrules]

Gauntlet thrown: Corvette ZR1 laps the 'Ring in 7:26.4 - Autoblog

Tadge J. Juechter, Corvette's chief engineer, announced this morning that Jim Mero, GM's development engineer, drove the ZR1 around the Nurburgring in 7:26.4. According to the GMNext blog, the run took place earlier this morning and that conditions were good on the track, with the exception of a strong headwind down the main straight. Mero mentioned that he felt there were a few places where he could have gone faster, although no details were provided about why and where.

Juechter makes it clear that the ZR1 that lapped the 'Ring was instock trim, with the exception of safety and communications equipment. As such, the ZR1 was wearing the same Michelin Pilot Sport 2s found on the production model, the chassis alignment and vehicle height were set to factory specs and the unmodified engine was running on pump gas.

The lap began with a rolling start – which falls in line with current industry practices – and the time was confirmed both through an electronic timing system and two hand-held stopwatches. The ZR1 team will be posting a video of their run when they return from Germany and we'll be keeping our eye out for it when it's online the week of July 7th.

 

[Monster]

I am pretty surprised that the ZR1 managed to go this fast around the track, with this much torque going through the rear wheels, it will be pretty scary to get this beast around the Ring at this kind of speed. Does the ZR1 retains the standard leaf spring rear suspension layout?

This is pretty exciting new because the pressure is now on the Nissan engineers to further improve their GTR V-spec and leave the competition behind.

 

[Mr Robert]

Great! Now we have a 'production' car battle between Nissan and GM!

 

[CarGuy]

Wow the ZR1 is pretty much full game both in the straight and on the twists.

But we already have had the ZO6 for over 2 years so it's interesting to see what this car can do.