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The New Corvette:
Refined, Powerful, A Winner
Story and Photos by Keith Burton -
GulfCoastNews.com
When is comes to the quintessential American Sport Car you have
to be talking about the Chevrolet Corvette. So anytime there is a new
model, you are talking earthmoving news in the world or automobiles. Such
is the case with Chevy's sixth generation Corvette featured here in this
article. The 2005 Chevrolet Corvette delivers more passion and precision
to a vehicle long known for its power. Now you can also add refinement.
Chevy says the development of the Corvette intends to not only replace
the outgoing C5 Corvette (1997-2004), but also to create a 21st century
Corvette that both thrills the legions of traditional loyalists and
captures the imagination of a new generation of performance enthusiasts.
The formula from the C5 era remains: extremely high performance
capabilities in a car that offers great style, value and quality, with
surprising comfort for daily driving. The Corvette builds on that
foundation but wrapped in a passionate new design.
Five inches shorter than the current car, the 2005 Corvette cuts a
tighter, more taut profile – with virtually no
loss of usable space. More than just visual, the new dimensions make the
car more agile and “tossable,” with upgrades in handling, acceleration and
braking. At 0.28 coefficient of drag, the Corvette is the most
aerodynamically efficient Corvette ever and has improved anti-lift
characteristics that enable improved high-speed stability and confidence.
And how high is that speed? While I didn't have an opportunity to find
out, Chevy's engineers tell me the top speed is 185 mph. Even the car's
windshield wipers are designed for high speeds.
"While there is no place in the U.S. to legally drive at those speeds,
General Motors plans include selling the new Corvette in countries where
such speeds are possible. And the wipers needed to work where speeds of
150 and more are possible," said a Chevy spokesman.
On the road, I found the new Corvette lives up to its "tossable" hype
as this truly is the first Corvette that I have ever felt was at
ease on the road. While my time was short in the car around the GM Milford
test facility, I did have the opportunity to push it a bit. Where
Corvette's have never felt light on their feet, this one does. It isn't
just a result of being slightly smaller, which it is, but it is in the
totality of the way the controls feel, and in the power of the new LS2
engine.
Chief among the elements that make the car feel so much better, is a
new, lighter action clutch, which is far quicker and lighter to engage.
For the first time, you don't have to get an automatic to enjoy driving a
Corvette in traffic and quickly around the twisties. The steering, always
good in a 'Vette, feels even more telepathic. I think it actually compares
favorably to some of Europe's best sport cars. But here, in a 'Vette, you
get reliable performance. A BMW Z4 I drove back-to-back with the new "Vette,
seems tinny and loose in comparison, besides being A LOT slower.
MORE POWER:
A new LS2 6.0-liter small-block V-8 is the standard engine in the 2005
Corvette. It is based on GM’s new Gen IV small-block family of engines.
The
LS2 delivers 400 horsepower and 400 lb.-ft. of torque. It is the
largest, most powerful standard small-block engine ever offered in
Corvette.
Major revisions to the manual and automatic transmissions provide
Corvette with significant improvements geared towards performance driving.
The Tremec six-speed manual gearbox is available with two sets of ratios,
one with more aggressive acceleration characteristics reserved for
Corvette’s Z51 Performance Package that emulates the performance of the
C5’s landmark Z06 model. Improved shifting characteristics are another
major improvement, with new synchronizers that reduce travel by 10
percent, and a shifter knob that is an inch shorter and redesigned for
greatly improved driver operation.
The Hydra-Matic 4L65-E automatic transmission is an upgraded version of
the C5’s 4L60-E, strengthened and revised to accommodate the LS2’s 400
lb.-ft. of torque. It includes GM’s advanced Performance Algorithm
Shifting, which automatically selects the optimal gear for a given driving
condition, making it a willing accomplice for performance driving and hard
cornering. The transmission now shifts at higher revs to take advantage of
the higher engine output.
Not only does the LS2 engine deliver impressive horsepower, but in a
true measure of real-world efficiency, it also boasts the best combination
of horsepower and fuel economy among the world’s best performance cars.
When the LS2’s 400 horsepower is multiplied by its 22.6 mpg combined
city/highway mileage estimates, it yields a total of 9,040. Here’s how the
Corvette compares with some of its key competitors:
| Vehicle |
HP |
mpg comb |
Index |
| 2005 Corvette Corvette |
400 |
22.6 |
9,040 |
| Porsche 911 GT2 |
477 |
18.2 |
8,681 |
| Porsche Turbo |
444 |
18.2 |
8,081 |
| Dodge Viper |
500 |
15.5 |
7,750 |
| Porsche 911 |
340 |
20.6 |
7004 |
| Ferrari 575 Maranello |
515 |
12.7 |
6,541 |
| Ferrari Modena |
400 |
12.7 |
5,080 |
Amazingly, the LS2 gives Corvette power in the range of exotic cars
that cost tens of thousands more, combined with fuel efficiency better
than some family sedans.
PASSION IN DESIGN
The new Corvette's body is 5 inches shorter than the C5, and roughly 1
inch narrower – with excellent aerodynamics. Three of the these inches are
from the front, and two from the rear. This new package not only
aids the car’s agility and performance, it also helped designers give the
sixth generation a lean, muscular form.
Larger wheels (18-inch in front, 19-inch in rear) are topped by fenders
that feature a crisp look and are direct legacy of the original Stingray
Corvette's of the late 1960's. Compared to the outgoing C5, this new
generation Corvette has much more character in its front and rear fascia
areas. The exposed lamps combine with the grille to create much more of a
“face” on the car. The rear fascia is more expressive and lean, with truly
round tail lamps and integrated exhaust tips.
Designers used the latest advanced computer-aided design techniques and
relied heavily on traditional hand sculpting and the personal passion of
designers and engineers. Chevy said sculptors pored over every millimeter
of the car’s surface. The aerodynamic development combined digital
simulations, Corvette Racing experience and more than 400 hours of wind
tunnel testing.
The passion on the outside is reflected in an all-new interior. The
twin-cockpit layout incorporates sophisticated contours, leather-like
surfaces that are richer and softer, and pleasing details including
metallic accents and an expressive use of color. The interior can be
further enhanced by dealer-installed accessories designed to match the
exterior color of the car.
ATTENTION TO DETAILS
A central element of the 2005 Corvette is an all-new interior that
includes greatly improved materials, craftsmanship and functionality. The
interior delivers premium quality with new technology meant to enhance,
not distract from, performance driving. We noted that this new
Corvette's fit and finish was first rate. The plastics are greatly
improved in both texture and feel. Also, for a brand new vehicle, there
were no squeaks or rattles, something that was fairly common in Corvettes
of yore.
The
instrument panel and door trim areas make extensive use of cast skin,
which retains the look and feel of genuine leather with excellent
softness, low gloss and low glare that conveys an overall premium
appearance and quality. Anodized aluminum accents the interior in key
functional areas, such as the manual shift knob and door release buttons.
This material includes a screen-printed appliqué that minimizes sun glare,
and is resistant to temperature changes and fingerprints.
Perhaps the biggest change on the exterior are the exposed headlamps,
the first time since 1962 that a production Corvette has not had a
mechanism to conceal the lamps when not in use. Chevy engineers tell me
that the hidden headlight system would not accommodate the high-power
Xenon High-Intensity Discharge lamps, which provide an 80-percent
improvement in night lighting on the road.
The new Corvette contains many new electronic technologies including
Keyless Access with push-button start, and optional features such as a
reconfigurable head-up display, DVD-navigation system with voice
activation, XM Satellite Radio and OnStar. The keyless access system is
like that found on the Cadillac sports car and new STS sedan.
The chassis features low weight, high strength, cored composite floors,
an enclosed center tunnel, rear axle-mounted transmission and aluminum
cockpit structure
None of the suspension bits has been carried over from C5. The
short-long arm and transverse leaf spring
independent
suspension configuration remains, but the cradles, control arms, knuckles,
springs, dampers, bushings, stabilizer bars, and steering gear are all
redesigned. The Extended Mobility Tires (EMT) also are new, taking
advantage of the latest sidewall design and compound technology for
run-flat capabilities, and play a critical role in the tuning of the
suspension for excellent handling and comfortable ride.
Improvements in ride and handling include greater lateral acceleration,
more body control, less noise transmitted from the road, and better
traction and stability in corners. The specific tuning changes in the
chassis and suspension include suspension and steering geometry optimized
for better handling and ride, advanced compounds in the tires, new
directional control arm bushings, increased caster angle and greater
suspension ride travel. The result is a Corvette that is more poised at
even higher handling levels, yet easier to drive.
Suspension Choices. Three suspension choices allow drivers to choose
the setup that best suits their driving
style – Standard, Magnetic Selective Ride Control, and Z51 Performance
Package. The Standard suspension is tuned for a balance of ride comfort
and precise handling.
Magnetic Selective Ride Control. The optional F55 Magnetic Selective
Ride Control suspension features magneto-rheological dampers able to
detect road surfaces and adjust the damping rates to those surfaces almost
instantly for optimal ride and body control. Magnetic Ride Control debuted
on the 2003 50th Anniversary Edition Corvette, and is the world’s fastest
reacting suspension, replacing mechanical valves with nearly instantaneous
reactions of magneto-rheological fluid. The system has been improved for
the Corvette, allowing drivers more differentiation in character between
the system’s two settings, “Tour” and “Sport.”
Z51
Performance Package. The Z51 Performance Package brings Corvette Coupe
performance very close to the same level as the widely admired Z06. The
Z51 offers more aggressive dampers and springs, larger stabilizer bars,
and larger, cross-drilled brake rotors for optimum track performance
capability while still providing a well-controlled and comfortable ride.
Chevy engineers conducted extensive racetrack testing, which revealed that
a Corvette equipped with the Z51 suspension almost equals the lap time of
a C5 Z06.
Chevy engineers tells us they sought to eliminate the little
imperfections and potential “dis-satisfiers” that sports car customers
formerly had to accept. All of the major user interfaces – the hood, the
doors, and the rear hatch – have been painstakingly designed for top
quality performance, look and feel. The hood is still forward-hinged, but
is 15 percent smaller, 35 percent lighter, and 40 percent stiffer than the
previous Corvette. The rear hatch
has
a power-operated single-cinching latch for excellent fit and easy
operation. Doors are stiffer and easier to close, doing so with a more
refined sound. There are no traditional door handles on the 2005 Corvette.
The Corvette features GM’s Keyless Access with Push Button Start
technology. By detecting the proximity of the key fob, the system both
unlocks the doors and allows it to be started.
The removable-roof panel is 15 percent larger, yet offers the same
structural stiffness as C5’s while weighing just one pound more. The roof
panel comes standard painted body color, or is available with optional
tinted clear or with a dual-roof package. Both the tinted clear and
painted roof panels weight just under 20 pounds, so removal is a snap.
With new indexing side-window glass that fit tightly to their seals, wind
and road noises are hushed for a sports car, until you stomp on the gas.
Now by this time, you may be wondering if all of this new found
goodness is going to cost you more. Here's a surprise for you. The base
price for Corvette coupe is $44,242, which is $1,300 LESS expensive than
the C5 similarly equipped. The base price for the convertible is $52,245,
which is $305 less.
My only question now is, can the new Corvette by too refined for its
own good? Gone are all the rough edges that made this car what it was.
This new generation Corvette, I believe, marks a whole new potential
worldwide for this American Icon. Well done, Chevrolet. Well done.
Specifications
|
Overview |
|
Models: |
2005 Chevrolet
Corvette |
|
Body style /
driveline: |
two-door hatchback
coupe,rear-drive, front-engine |
|
Construction: |
composite body
panels, hydroformed steel frame with aluminum & magnesium structural
and chassis components |
|
Manufacturing
location: |
Bowling Green,
Kentucky |
|
|
|
Engine
|
6.0L LS2 V-8 |
|
Displacement
(liters/cu in/cc): |
6.0 / 364 / 5970 |
|
Bore & stroke (in /
mm): |
4 x 3.62 / 101.6 x
92 |
|
Block material: |
cast aluminum |
|
Cylinder head
material: |
cast aluminum |
|
Valvetrain: |
OHV, 2 valves per
cylinder |
|
Fuel delivery:
|
SFI (sequential fuel
injection) |
|
Compression ratio:
|
10.9:1 |
|
Horsepower
(hp / kw @ rpm): |
400 / 298 @ 6000 |
|
Torque (lb-ft @
rpm): |
400 @ 4400 |
|
Recommended fuel: |
93 octane
recommended, not required |
|
Maximum engine speed
(rpm): |
6500 |
|
Estimated fuel
economy (mpg city / hwy / combined): |
19 / 28 / 23 (man) & 18 / 25 / 21 (auto) |
|
Transmissions |
Hydra-Matic 4L65-E |
Tremec T56
6-speed manual |
Tremec T56 6-speed
manual, w/ optional Z51 Sport Package |
|
Type: |
four-speed
automatic, with Performance Algorithm Shifting |
6-speed manual |
6-speed manual |
|
Gear ratios (:1): |
|
First: |
3.06 |
2.66 |
2.97 |
|
Second: |
1.63 |
1.78 |
2.07 |
|
Third: |
1.00 |
1.30 |
1.43 |
|
Fourth: |
0.70 |
1.00 |
1.00 |
|
Fifth: |
- |
0.74 |
0.71 |
|
Sixth: |
- |
0.50 |
0.57 |
|
Reverse:
|
2.29 |
2.90 |
3.28 |
|
Final drive ratio:
|
std: 2.73; opt: 3.15 |
3.42 |
3.42 |
|
|
|
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 |
|
Steering type:
|
speed sensitive,
magnetic power-assisted rack-and-pinion |
|
Steering ratio:
|
16.1:1 |
|
Turning circle,
curb-to-curb (ft / m): |
39 / 12 |
|
|
|
Brakes |
|
Type: |
power-assisted disc
with ABS, front and rear |
|
Rotor diameter x
thickness (in / mm): |
front: 12.8 x 1.26 /
325 x 32;
rear: 12.0 x 1 / 305 x 26
Z51 Performance
Suspension:
front: 13.4 x 1.26 /
340 x 32
rear: 13.0 x 1 /
330 x 26
|
|
|
|
Wheels/Tires |
Std & Magnetic
Selective Ride Control |
Z51 Sport Package |
|
Wheel size:
|
front: 18 x 8.5; rear: 19 x 10 |
front: 18 x 8.5; rear: 19 x 10 |
|
Tires: |
Goodyear Eagle F1 GS
Extended Mobility
front: P245/40ZR-18
rear: P285/35ZR-19 |
Goodyear Eagle F1 SC
Extended Mobility
Asymmetric Tread
front: P245/40ZR-18
rear: P285/35ZR-19 |
|
|
|
Dimensions |
|
Exterior |
|
|
Wheelbase (in / mm):
|
105.7 / 2686 |
|
Overall length (in /
mm): |
174.6 / 4435 |
|
Overall width (in /
mm): |
72.6 / 1844 |
|
Overall height (in /
mm): |
49.1/ 1246 |
|
Track (in / mm): |
front: 62.1 / 1577
rear: 60.7 / 1542 |
|
Curb weight (lb /
kg): |
est. 3245 / 1470 |
|
Weight distribution
(% front / rear): |
51 / 49 |
|
|
|
Interior |
|
|
Seating capacity
(front / rear): |
2 / 0 |
|
Interior Volume (cu
ft / L) |
52.1 / 1475 |
|
Head room (in / mm):
|
37.9 / 962
|
|
Leg room (in / mm): |
43 / 1093 |
|
Shoulder room
(in / mm): |
55.2 / 1403 |
|
Hip room (in / mm): |
53.7 / 1363 |
|
|
|
Capacities |
|
Cargo volume
(hatchback area)
(cu ft / L): |
22.4 / 634 |
|
Fuel tank (gal / L): |
18.0 / 68.1 |
|
Engine oil (qt / L):
|
5.5 / 5.2 |

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