lb-ft @ 4600 rpm
hp @ 5900 rpm
hp per liter
(from General Motors
Press Release) BOWLING GREEN, Ky. –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
-- 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
-- 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
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.