Showing posts with label Chevrolet Corvette. Show all posts
Showing posts with label Chevrolet Corvette. Show all posts

Thursday, June 11, 2009

Corvette Racing Aims for Sixth Le Mans Title in Final GT1 Race


Corvette Racing has unfinished business at the 24 Hours of Le Mans. The most successful team in American Le Mans Series history has won its class five times in the classic 24-hour French endurance race (2001-02, 2004-06), establishing Corvette as a global performance icon. Now after runner-up finishes in Le Mans in 2007 and 2008, Corvette Racing is focused on winning its sixth Le Mans title at the immense Circuit des 24 Heures on June 13-14.

This year's edition of the world's most prestigious sports car race has special significance for Corvette Racing. The team's Corvette C6.Rs will make their final run in the GT1 category before Corvette Racing begins its transition to a global GT class in 2010 that is chiefly based on current GT2 regulations.

"From Corvette Racing's inception, the 24 Hours of Le Mans has always been our objective," said program manager Doug Fehan. "GM leadership shared that vision, and Le Mans became the cornerstone of our program for two important reasons.

"First, Corvette is the tip of GM's technological spear, so racing production-based Corvettes was the most expedient way to accelerate the transfer of technology from racing to production," Fehan said. "Second, we knew that Corvette was going to become a global brand. "If Corvette was going to compete successfully in the marketplace with Ferrari, Porsche, Aston Martin, and other prestigious marques, then we had to transform the image of Corvette in the eyes of the world. Corvette's performance credentials were already well established in North America, but we had to nurture a new respect for Corvette in the rest of the world. Le Mans provided the arena to accomplish that, and the results have far exceeded our expectations."

Le Mans: The Driver's View

The magic of Le Mans still enthralls even veteran drivers like Corvette Racing's Olivier Beretta, a five-time winner at the Circuit de La Sarthe. "Le Mans is a very special event, and everyone who has been there can understand what I mean," said the Monegasque driver. "It's difficult to put into words, the feeling that you have when you go to Le Mans – the track, the atmosphere, the history, the race itself.

"Driving in the last race of the GT1 Corvette is something very special," Beretta said. "Why? Because these cars have raced since 1999, and they have been very successful. I have been part of the Corvette Racing team since 2004, and had the opportunity to win Le Mans three times with Ollie (Gavin) and Jan (Magnussen), so I really hope to win the last race."

Oliver Gavin, who will be teamed with Beretta and Marcel Fassler in the No. 64 Compuware Corvette C6.R, agreed: "Do we have unfinished business at Le Mans? I definitely think so," said the Briton. "Le Mans had been very kind to me from 2004 to 2006 with three consecutive class victories, but you need to have luck to win there. In the last two years, we've been extremely competitive, driven smartly and had great races, but it seemed the luck just wasn't with us.

"Not only are you battling against the other cars in your class and against all of the other cars in the race, but you are battling against the track itself, the weather conditions, and the clock," Gavin explained. "It's a huge, huge event, and something you can never underestimate. Going back for the last time in GT1, we are very focused on getting that final victory and putting Corvette Racing in the history books as the last GT1 winner of this era."

Corvette Racing's Danish ace Jan Magnussen is also hoping to return to the top step of the podium at Le Mans. "It would be fantastic to finish this program with a win at Le Mans," said Magnussen, who is teamed with Johnny O'Connell and Antonio Garcia in the No. 63 Compuware Corvette C6.R. "I've been on the podium the last five years – three times as a winner, but the last two in second place. We've had excellent races, haven't made any mistakes, but somebody else was just a little bit faster. I believe this year we will have a really good shot at it."

Driver Roster

Corvette Racing's driver lineup for Le Mans adds Antonio Garcia as the third driver in the No. 63 Corvette C6.R alongside O'Connell and Magnussen. The 29-year-old Spaniard is the hottest driver in international endurance racing, with three major victories in the last year. Garcia was part of the Le Mans-winning GT1 team in 2008, and he shared the overall win in the 2009 Rolex 24 at Daytona. In March, he won the Mobil 1 Twelve Hours of Sebring in his debut with Corvette Racing.

"Antonio is awesome," O'Connell declared. "A third driver must be able to take whatever car he's given and drive it fast, and Antonio showed at Sebring that he can do that. Positive energy, or mojo, or whatever you want to call it, is important in racing. Antonio was in the winning car last year at Le Mans, and he won Daytona and Sebring this year. When a driver is winning, it's really easy to keep winning. I think Antonio is an excellent addition to Corvette Racing."

Marcel Fassler will drive the No. 64 Compuware Corvette C6.R alongside Gavin and Beretta. The Swiss racer won the 24-hour Spa race in 2007, and has honed his racing skills in the European Le Mans Series and FIA GT competition.

"Both of the new Corvette Racing drivers, Marcel and Antonio, are very quick," Beretta said. "Marcel is a great asset; he is fast, successful, very easy to get along with, and he wants exactly the same setup as Ollie and I do. He knows the Corvette C6.R very well, and he raced with us at Sebring. I hope that the three of us will have a good race at Le Mans."

O'Connell's Quest

Johnny O'Connell can make history at Le Mans by becoming the only American to score four wins in the famed race. He notched his first GT win in his Le Mans debut in 1994, and repeated with back-to-back wins in 2001-02 with Corvette Racing. The list of three-time American winners at Le Mans includes Phil Hill, Hurley Haywood, Al Holbert, Luigi Chinetti, and Dick Barbour.

"No American has stood on the top step of the podium four times at Le Mans," said O'Connell, a resident of Flowery Branch, Ga., "Every driver wants to accomplish certain things in his career, and it would be tremendous to get my fourth Le Mans win this year. Corvette Racing has all the tools to do it, and we have a great opportunity."

O'Connell recognizes the difficulty he faces. "Le Mans is truly an intense battle," he said. "Twice we finished second there on the same lap as the winner. You replay the race in your mind a thousand times, asking yourself what could we have done differently, what could we have done better? I definitely think we've learned from those experiences. At the end of the GT1 era, we want Corvette to be in the record book with the last big win at Le Mans."

Rule Revisions

Changes in the Le Mans regulations will have an impact on Corvette Racing's pit strategy and tire management. The new rules allow only two mechanics and one air gun to be used for tire changes; previously four mechanics using two air guns were allowed to change tires simultaneously. No other work may be done during tire changes, and the equipment and used tires must be behind the line at the front of the garage before the car leaves its pits.

"The new rules mean that a four-tire change will take 25 to 30 seconds per stop, versus about 10 seconds last year," said Corvette Racing team manager Gary Pratt. "The new rules essentially dictate that you double-stint the tires, and you'd really like to do triple stints if the conditions allow. Making the wrong tire choice brings a harsh penalty – not only does the car lose time on the track, but then you face another 30-second pit stop to change them. Rain could further complicate tire selection and pit strategy.

"The pit spaces at Le Mans are small, so if there is a safety car period and everyone comes in for tires, getting in and out of the pits could be difficult," Pratt explained. "Even during routine stops, managing when the cars come in is important. For a two-car team like Corvette Racing, ideally the pit stops should be staggered so the cars come in one at a time."

Another significant rule change is the requirement to qualify and race using the same engine. Previously teams were allowed to install fresh powerplants after qualifying.

"There are six hours of practice on Wednesday night followed by four hours of qualifying on Thursday night," Pratt noted. "We'll install our race engines on Thursday, and consequently we plan to run a limited number of laps during qualifying – a few laps for shakedown and to let the drivers get acclimated, followed by qualifying runs. Fortunately Corvette Racing has years of experience at Le Mans and volumes of data, so we should be able to cope with the shortened schedule this year."

Le Mans Timetable

Practice for the world's most prestigious sports car race will take place from 6 p.m. to midnight on June 10 and qualifying from 7 p.m. to midnight on June 11. The 77th running of the 24 Hours of Le Mans is scheduled to start at 3 p.m. CET (10 a.m. EDT) on Saturday, June 13 and finish at 3 p.m. CET (10 a.m. EDT) on Sunday, June 14. SPEED will provide live television coverage in the U.S. from 8:30 a.m. to noon ET Saturday and 11 p.m. Saturday to 10 a.m. ET Sunday. Flag-to-flag coverage of the race, qualifying and practice will be available at radiolemans.com.

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Chevrolet builds 1,500,000th Corvette


At the June meeting of the Greater Atlanta Automotive Media Association, Karen Rafferty, Chevrolet Product Marketing Director, today announced the recent production of the 1,500,000th Corvette at GM Bowling Green Assembly.

"The 1.5 millionth Corvette is a great example of how Chevy is America's Brand," Rafferty said. "For nearly 60 years we have built America's Sports Car and this milestone is a solid proof point."

The 1.5 millionth Corvette, built on May 28, is a white convertible 3LT with red interior and black top (similar to the first, 500,000th and 1 millionth Corvettes built in 1953, 1977 and 1992 respectively). The first Corvette rolled off the assembly line on June 30, 1953.

Rafferty also announced pricing of the all-new 2010 Corvette Grand Sport. Pricing for the Grand Sport coupe is $55,720 and GS convertible is $59,530. Both prices include a $950 destination freight charge.

"The Corvette Grand Sport achieves a 0 - 60 time in less than four seconds, pulls 1.0g on the skid pad and still boasts an impressive 26 highway mpg," Rafferty said. "These numbers are unmatched by any of Corvette's competitors."

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Friday, April 24, 2009

Chevrolet Announces New 2010 Corvette Grand Sport

Bucharest Ring - Chevrolet Corvette C5RImage by bkdc via Flickr

Grand Sport. It’s one of the most storied monikers in Corvette’s illustrious racing heritage. Today, Chevrolet announced it is returning to the lineup in the new, 2010 Corvette Grand Sport model.

The announcement was made at the 12th annual C5/C6 Corvette Birthday Bash, held at the National Corvette Museum, in Bowling Green, Ky.

The new Grand Sport combines the Corvette’s LS3-based powertrain with unique, wide-body styling and a racing-bred suspension for a distinctive model that delivers a great balance of road and race track performance. It is offered in both coupe and convertible body styles, with either a six-speed manual or six-speed automatic transmission. The LS3 6.2L engine is rated at 430 horsepower (321 kW)* and 424 lb.-ft. of torque (575 Nm)* with the standard exhaust system. An optional two-mode exhaust system elevates the power ratings to 436 horses (325 kW) and 428 lb.-ft. (580 Nm).

The Grand Sport replaces the Corvette’s previous Z51 package and brings a greater degree of handling performance, with wider wheels and tires; revised shock, stabilizer bar and spring specifications; and specific gearing. The equipment enables cornering capability of 1.0 g, as well as a 0.2-second improvement in 0-60 acceleration vs. standard LS3-powered models.

Grand Sport coupe models equipped with the manual transmission are uniquely outfitted for race track competition, too, with a dry-sump oiling system, differential cooler and a rear-mounted battery.

The complete list of content and special features for the Grand Sport includes:

  • Wider front and rear fenders – including specific front fenders with integrated Grand Sport badges
  • Z06-style front splitter and tall rear spoiler
  • Functional brake ducts and extra cooling
  • Unique 18-inch front and 19-inch rear wheels; painted finish standard and chrome finish optional
  • Large 275/35ZR18 tires in front and 325/30ZR19 tires in the rear
  • Z06-size brakes, including 14-inch (355 mm) front rotors with six-piston calipers and 13.4-inch (340 mm) rear rotors with four-piston calipers
  • Specific manual transmission gear ratios
  • Specific rear axle ratio on automatic-equipped models

With its special equipment, the Grand Sport offers a unique blend of performance and amenities. Its suspension package approaches that of the Z06, but includes a removable roof on coupes (Z06 has a fixed roof) and, of course, the availability of a convertible body style. Also, the paddle-shift six-speed automatic transmission is offered, while a manual transmission is the only choice with the Z06.

All of Corvette’s exterior colors are offered on the Grand Sport, and an available Heritage package adds iconic front fender hash marks offered in four colors, as well as two-tone seats with Grand Sport embroidery. The Grand Sport can be ordered with 1LT, 2LT, 3LT and 4LT trim packages, too.

Grand Sport history

Envisioned by legendary Corvette engineer Zora Arkus-Duntov as a factory-built, lightweight and race-ready production model that would trump domestic and foreign road-racing competitors, the original Corvette Grand Sport was a promising idea that led to the production of five special prototypes in 1963. The project was later shelved, following GM’s agreement to stay out of manufacturer-backed motorsports.

The five prototypes were based on the styling of the 1963 Corvette and were hand-assembled under Duntov’s watchful eye. But while they looked like production models, the prototypes were purpose-built race cars that shared little with their assembly-line cousins. Duntov also oversaw the Grand Sport engine program that featured a special, 377-cubic-inch small-block V-8 with side-draft carburetors.

Although never officially sanctioned by General Motors, the five Grand Sport prototypes saw extensive racing experience throughout the 1960s in the hands of “private” racers who had strong contacts within Duntov’s engineering circle. All five original cars are accounted for today and are among the most valuable in the collector market.

Chevrolet offered a limited-edition Grand Sport production model in 1996, commemorating the original racing cars and marking the end of the C4 era in Corvette production. All of the 1,000 examples were painted Admiral Blue and featured a white center stripe and red “hash mark” graphics on the left front fender, a graphic scheme that mimicked the look of some of the original race cars.

*SAE certified.

SPECIFICATIONS

Overview

Models:

Chevrolet Corvette Grand Sport Coupe and Convertible

Body styles / driveline:

two-door hatchback coupe with removable roof; rear-wheel drive (Coupe and Convertible)

Construction:

composite body panels, hydroformed steel frame with aluminum and magnesium structural and chassis components

Manufacturing location:

Bowling Green, Ky.

Engines


6.2L V-8 LS3

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:

cast aluminum

Valvetrain:

overhead valve, two valves per cylinder

Fuel delivery:

SFI (sequential fuel injection)

Compression ratio:

10.7:1

Horsepower
(hp / kW @ rpm):

430 / 321 @ 5900* w/ std. exhaust
436 / 325 @ 5900* w/ opt. exhaust

Torque (lb-ft / Nm @ rpm):

424 / 575 @ 4600* w/ std. exhaust
428 / 580 @ 4600* w/ opt. exhaust

Recommended fuel:

premium recommended not required

EPA estimated fuel economy (city / hwy):

15 / 25 (automatic)
16 / 26 (manual)

Transmissions


six-speed manual

six-speed paddle-shift automatic

Application:

std.

opt.

Gear ratios (:1)



First:

2.97

4.03

Second:

2.07

2.36

Third:

1.43

1.53

Fourth:

1.00

1.15

Fifth:

0.71

0.85

Sixth:

0.56

0.67

Reverse:

3.28

3.06

Final drive ratio:

3.42

2.73

Chassis / Suspension

Front:

short/long arm ( SLA) double wishbone, cast aluminum upper & lower control arms, transverse-mounted composite leaf spring, monotube shock absorber

Rear:

short/long arm ( SLA) double wishbone, cast aluminum upper & lower control arms, transverse-mounted composite leaf spring, monotube shock absorber

Traction control:

electronic traction control; Active Handling

Brakes

Type:

front and rear power-assisted disc with ABS with six-piston front and four-piston rear calipers, cross-drilled rotors

Rotor diameter x thickness (in / mm):

front: 14 x 1.3 / 355 x 32
rear: 13.4 x 1 / 340 x 26

Brake swept area
(sq in / mm):

front: 309 / 1994
rear: 269 / 1735

Wheels & Tires

Wheel size:

front: 18-inch x 9.5-inch
rear: 19-inch x 12-inch

Tires:

front: P275/35ZR18
rear: P325/30ZR19

Dimensions

Wheelbase (in / mm):

105.7 / 2685

Overall length (in / mm):

175.6 / 4460

Overall width (in / mm):

75.9 / 1928

Overall height (in / mm):

48.7 / 1236

Curb weight (lb / kg):

3311 / 1502 (Grand Sport Coupe)
3289 / 1492 (Grand Sport Convertible)

Weight distribution
(% front / rear):

51 / 49

Interior


Seating capacity

2

Interior volume (cu ft / L):

52 / 1475

Headr oom (in / mm):

38 / 962

Legroom (in / mm):

43 / 1092

Shoulder room (in / mm):

55 / 1397

Hip room (in / mm):

54 / 1371

Capacities

Cargo volume
(cu ft / L):

Coupe: 22 / 634
Convertible: 11 / 295 (top up); 7.5 / 212 (top down)

Fuel tank (gal / L):

18 / 68.1

Engine oil (qt / L):

5.5 / 5.2 (automatic transmission)
10.5 / 9.9 (manual transmission)

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