liter LS3 V8
hp per liter
(from Chevrolet Press
Release) 2009 CORVETTE: ENHANCEMENTS BRING MORE CHOICES,
REFINEMENT TO CHEVY’S LEGENDARY SPORTS CAR
After a milestone year
in 2008 that saw the introduction of the LS3 6.2L V-8 as the new
standard engine, a custom, leather-wrapped interior and more
upgrades, the Corvette powers into 2009 with a raft of enhancements
that further distinguish it and give customers more choices –
including a lower-priced convertible model.
Of course, that range of choices also includes the ZR1, with its
6.2L supercharged engine that produces 638 horsepower (476 kW).
(Please see the separate Corvette ZR1 release for complete
information on Chevy’s world-class supercar.)
“The Corvette is an American icon with world-class credentials,”
said Ed Peper, Chevrolet general manager. “It’s the car we all
aspire to own and the 2009 edition, with more choices and features,
only amplifies that craving.”
New for 2009
Here is a rundown of the
new features and content changes for the ’09 Corvette lineup:
Corvette 1LT convertible – Customers can slip into a Corvette
convertible for a lower MSRP with this 1LT-equipped model.
Additionally, a power top is now standard on 2LT convertible models.
Two new exterior colors – Cyber Gray Metallic and Blade Silver
Metallic are added, while Machine Silver Metallic is discontinued.
This brings the Corvette’s exterior palette to nine colors.
Revised crossed flags emblem – The iconic Corvette crossed flags
emblem is distinguished with a new, bright surround.
Two new custom leather-wrapped interiors – Dark Titanium and Ebony
join Sienna and Linen as available selections.
Bluetooth capability – This option enables the Corvette to offer the
convenience and safety of Bluetooth hands-free phone service.
Standard power hatch pull-down – This convenient feature is now
standard on Corvette coupe and Z06 models.
Additionally, steering wheel audio controls and variable-ratio
steering are standard on all models. Revisions also are incorporated
to the hardware and software of the anti-locking braking, traction
control and Magnetic Ride Control systems.
Several trim and content changes are incorporated on the Z06, too.
10-spoke Z06 wheel available in four versions: Sparkle Silver,
Competition Gray and chrome
Color-keyed door and
instrument panels with red and titanium interiors
pull-down hatch now standard
Gray stitching on
Ebony base seats (previously red)
New door sill plates
with the Z06 logo
standard on all Z06 models
The Z06 also
receives a larger-capacity dry-sump oiling system. It upgrades
to the 10.5-quart (9.9 liters) system of the new ZR1. The
previous oil system held eight quarts (7.5 liters).
The popular museum
delivery option (RPO R8C) remains available for all Corvette models.
The 6.2L LS3 small-block
V-8 is the standard engine in coupe and convertible models. It 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 brings a power rating increase to 436 horses (325 kW) and 428
lb.-ft. (580 Nm).
The LS3 features an aluminum cylinder block with cast iron cylinder
liners. The cylinder bores measure 4.06 inches (103.25 mm) in
diameter and combine with a 3.62-inch (92 mm) stroke to deliver a
376-cubic-inch (6.2L) displacement. Breathing is accomplished via
high-flow cylinder heads. They’re based on the large port/large
valve design found on the LS7 engine, with larger-capacity,
straighter intake ports. The design optimizes intake flow to the
combustion chamber and the exhaust ports are also designed for
Complementing the large-port design of the heads are commensurately
sized valves. The intake valve size is a large, 2.16 inches (55 mm).
The intake valves feature lightweight hollow stems, which enable the
engine’s 6,600-rpm capability. The exhaust valves also are large,
measuring 1.60 inches (40.4 mm) in diameter.
To accommodate the engine’s large valves and enable more direct
intake port flow, the intake-side rocker arms are offset 6 mm
between the valve tip and the push rod. Actuating the valves is a
camshaft with 0.551-inch (14 mm) lift.
Dual-mode exhaust system
Optional on coupe and
convertible models is a dual-mode performance exhaust system. It
gives the Corvette a more aggressive exhaust sound character that
appeals to performance enthusiasts, as well as a boost in
Similar in design and function to the system used on the Z06 and
ZR1, the dual-mode exhaust uses vacuum-actuated outlet valves, which
control engine noise during low-load operation, but open for maximum
performance during high-load operation. It is not identical to the
Z06 system; it uses a 2.5-inch-diameter exhaust, while the Z06 uses
a three-inch system.
Transmissions and axle ratios
The Corvette is offered
with a standard six-speed manual transmission or an optional
six-speed automatic with paddle-shift control. When ordered with the
Z51 Performance Package, the six-speed manual comes with a more
performance-oriented gearing, including a “shorter” 2.97:1 first
The shifting feel for both the six-speed manual transmission and
paddle-shift six-speed automatic transmissions were improved in ’08,
with the manual transmission shifting improvements include a more
positive and direct feel during gear changes, with better
The six-speed paddle-shift automatic transmission on the coupe and
convertible delivers quick shifts, with the ’08 enhancements
bolstering the feeling of performance and driver control when using
the shifting paddles. A 2.73 performance axle ratio is available
with the automatic transmission. It is included with the Z51
Corvette coupe and
convertible have a hydroformed steel rail backbone structure, which
features cored composite floors, an enclosed center tunnel,
rear-mounted transmission and aluminum cockpit structure. Suspension
cradles, control arms, knuckles, springs, dampers, bushings,
stabilizer bars and steering gear have all been redesigned. Goodyear
Extended Mobility Tires (EMT) take advantage of the latest sidewall
design and compound technology for run-flat capabilities.
Three suspension choices allow drivers to choose the setup that best
suits their driving style. The standard suspension is tuned for a
balance of ride comfort and precise handling. Corvette is now more
poised at even higher handling levels, yet easier to drive.
The optional 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 control. Cross-dilled brake rotors are included when this
feature is selected, allowing customers to combine the larger brakes
from the Z51 performance package with the comfort of Magnetic
Selective Ride Control.
The Z51 Performance Package brings coupe and convertible performance
very close to the widely admired previous generation Z06. The Z51
offers more aggressive dampers and springs, larger stabilizer bars,
Goodyear Eagle F1 Supercar EMT tires, enhanced cooling and larger
cross-drilled brake rotors (13.4 inches / 340 mm in front and 13
inches / 330 mm in rear) for optimum track performance while still
providing a comfortable ride.
With each suspension, three standard dynamic chassis control systems
– anti-lock braking, traction control and Active Handling – operate
in concert. In all, the dynamic chassis control systems are smarter,
less intrusive and more adept at making the total driving experience
precisely what drivers have come to expect from their Corvette.
Dramatic fender forms
and exposed headlamps combine with the grille to create a strong
visual identity for the Corvette, while the tapered rear deck and
fascia improve high-speed performance. The lean rear design sports
round taillamps and center-exit exhaust. The fixed Xenon
high-intensity discharge headlamps provide superior lighting
performance. With a 0.286 coefficient of drag, the coupe models are
the most aerodynamic Corvettes ever.
Interior details and technology
Corvette’s interior is
inspired by the car’s dual-cockpit heritage. High-quality materials,
craftsmanship and functionality help deliver premium quality meant
to enhance performance driving. The instrument panel and doors are
covered with cast-skin foam-in-place trim with the look of a leather
panel. It is warm and inviting and has double the life of
conventional trim materials.
An AM/FM/XM radio with CD player and audio input jack is standard.
An optional Bose audio system with an in-dash six-disc changer adds
to the choices available to the audiophile owner. Steering-wheel
mounted audio controls are included on all models. XM Satellite
Radio is standard.
A full-function OnStar system with Turn-by-Turn Navigation
capability is standard and an onboard navigation system with voice
recognition is available. Using a 6.5-inch (165 mm) color
touch-screen display, the DVD-based system contains all the map data
for the 48 contiguous states and most of Canada on two discs.
Corvette also features k eyless access. When the owner is in close
proximity to the door, the key fob’s signal unlocks the door. The
system’s emergency key and other remote-function controls are
integrated in a single unit
Custom leather-wrapped interior
Available on coupe,
convertible, Z06 and ZR1 models is the custom leather-wrapped
interior package. It offers a stylish, two-tone leather-appointed
cabin with details that enhance the feeling of Corvette’s
craftsmanship. Details include:
upper and lower instrument panel, door pads and seats
Choice of new,
exclusive colors: Dark Titanium, Ebony, Linen or Sienna, with
unique color breakup
Padded door panel
embroidered on passenger-side dash pad
flags logo on headrests
Unique center trim
plate with Bias pattern.
Corvette Z06 details
powertrain and suspension features, the Corvette Z06 delivers
exceptional levels of capability and technology, making it one of
the best performance values on the market.
Design – The Z06 has an unmistakable and aggressive appearance, with
design cues that include:
A wide front fascia
with a large, forward-facing grille opening, a splitter along
the bottom and wheel opening extensions along the sides to
provide aerodynamic downforce
A cold-air scoop in
front of the hood that integrates an air inlet system for the
The trailing edge of
the front wheel opening is radiused to achieve improved drag,
but protects the body finish with a tough molding, and a large
air extractor is located behind the wheel
A fixed-roof body
style optimizes body rigidity and mass
Wider rear fenders
with flares cover the massive rear tires and a brake cooling
scoop in front of the wheels visually balances the fender
A tall rear spoiler
houses the CHMSL on the top of the rear fascia
spider-design wheels (18-inch, front; 19-inch, rear)
Four large stainless
steel exhaust outlets
Z06 badging on the
carbon fiber front fenders
The aerodynamics of the
Z06’s exterior were shaped by the experiences of the Corvette racing
program, where high-speed stability and cornering capability are
paramount. And while the race cars use large rear wings, the Z06’s
elevated spoiler provides sufficient downforce to balance the
road-worthy front splitter without adversely affecting aerodynamic
drag. The Z06’s Cd is 0.34.
For all its race-inspired functionality, the Z06 is designed to be a
daily-driveable high-performance vehicle. To that end, comfort and
convenience are held to a very high standard. High-Intensity
Discharge lighting, fog lamps, leather seating, dual-zone air
conditioning, cabin air filtration and head-up display (HUD) with
track mode and g-meter are standard.
The Z06 gauge cluster displays the Z06 logo on the 7000-redline
tachometer and has a readout on the oil pressure gauge to reflect
the higher standard pressure of the dry-sump oiling system. The
seats feature two-tone leather surfaces, with Z06-logo embroidery
and contrasting stitching.
Z06 options include a Bose audio system with an in-dash six-CD
changer, Competition Gray or chrome wheels, a telescoping steering
wheel, heated seats, side-impact air bags, a navigation system with
GPS and universal home remote.
LS7 engine – The Z06’s LS7 7.0L engine delivers 505 horsepower (377
kW) in a 3,180-pound (1,442 kg) package – a combination that
delivers 0-60 performance of 3.7 seconds in first gear, quarter-mile
times of 11.7 seconds at 125 mph and a top speed of 198 mph (as
recorded on Germany’s Autobahn). It also provides maximum lateral
acceleration of 1.04 g and 60-0 braking in 111.3 feet; it also
circuited Germany’s famed N ü rburgring in a time of 7:43 from a
The LS7 reintroduced the 427-cubic-inch engine to the Corvette
lineup. It is easily identified under the hood by red engine covers
with black lettering. The LS7 shares the same basic Gen IV V-8
architecture as the Corvette’s 6.2-liter LS3, but it uses a
different cylinder block casting with pressed-in steel cylinder
liners to accommodate the engine’s larger diameter, 4.125-inch
(104.8 mm) cylinder bores.
Internally, the LS7’s reciprocating components make use of
racing-derived lightweight technology, including titanium connecting
rods and intake valves, to help boost horsepower and rpm capability.
The rpm fuel shut-off limit is 7,100 rpm. The LS7’s details include:
block casting with large, 104.8-mm bores and pressed-in cylinder
Forged steel main
rods with 101.6-mm stroke
aluminum cylinder heads with titanium intake valves and
sodium-filled exhaust valves
headers with unique “quad flow” collector flanges.
One of the clearest
examples of the LS7’s race-bred technology is its use of titanium
connecting rods. They weigh just 464 grams apiece and besides being
lightweight, which enhances high-rpm performance and rpm range,
titanium makes the rods extremely durable.
The LS7’s CNC-ported aluminum cylinder heads are designed to meet
the high airflow demands of the engine’s 7.0-liter displacement. A
hydraulic roller camshaft with 0.588/0.593-inch valve lift is used
to allow plenty of air to circulate in and out of the engine. To
ensure optimal, uninterrupted airflow, the LS7’s heads have
straight, tunnel-like intake runners. Very large by
production-vehicle standards – even racing standards – they are
designed to maintain fast airflow velocity, providing excellent
torque at low rpm and exhilarating horsepower at high rpm. The heads
feature 70-cc combustion chambers that are fed by huge,
56-mm-diameter titanium intake valves. They are complemented by
41-mm sodium-filled exhaust valves.
To accommodate the large valve face diameters, the heads’ valve
seats are siamesed; and, taken from experience with the engines of
C6.R race cars, the LS7’s valve angles are held at 12 degrees – vs.
15 degrees for the LS2 – to enhance airflow through the ports.
The LS7 has a dry-sump oiling system designed to keep the engine
fully lubricated during the high cornering loads the Corvette Z06 is
capable of producing. An engine compartment-mounted 10.5-quart (9.9
liters) reservoir delivers oil at a constant pressure to a
conventional-style oil pump pick-up at the bottom of the engine. The
pressurized oil feed keeps the oil pick-up continually immersed in
oil at cornering loads exceeding 1 g.
Oil circulates through the engine and down to the oil pan, where it
is sent back to the reservoir via a scavenge pump. The
large-capacity reservoir, combined with a high efficiency air-to-oil
cooler, provides necessary engine oil cooling under the demands of
the engine’s power output. With the dry-sump system, oil is added to
the engine via the reservoir tank – which includes the oil level
Drivetrain – The Corvette Z06’s powertrain and drivetrain
systems are matched to the LS7’s performance capability. The light,
four-into-one headers discharge into close-coupled catalytic
converters and through two-mode mufflers. The mufflers each feature
a vacuum-actuated outlet valve, which controls exhaust noise during
low-load operation but opens for maximum power.
At the rear of the LS7 engine, a single-mass flywheel and
lightweight, high-capacity clutch channel torque to the rear
transaxle. The six-speed manual transmission has been strengthened
to handle the LS7’s increased torque load. The transmission includes
a pump that sends transmission fluid to the front radiator for
cooling. Upon its return, the fluid removes additional heat from the
differential lube before returning to the transmission. The
six-speed transmission connects to a limited-slip differential, with
enlarged ring and pinion gears. Stronger axle half-shafts with
tougher universal joints transmit power to the rear wheels.
Structure – The Z06 has a unique aluminum body structure for
optimum stiffness and light weight for the fixed-roof body style.
Perimeter rails are one-piece hydroformed aluminum members featuring
cast suspension nodes, which replace many welded steel components on
other Corvette models. Other castings, stampings and extrusions are
combined into the innovative structure with state-of-the-art
Advanced structural composites featuring carbon-fiber are bonded to
the aluminum structure. The wider front wheelhouses, for example,
are carbon composites and the passenger compartment floors combine
carbon-fiber skins with an ultra-lightweight balsa wood core.
The Z06 has a new magnesium cradle that serves as the attachment
point for the engine and some front suspension components. Magnesium
is lighter than aluminum yet incredibly strong. The magnesium cradle
helps improve the front-to-rear weight distribution, as do
carbon-fiber front fenders and wheelhouses. Engineers also moved the
battery from underhood to a position in the rear cargo area, behind
one of the rear wheels.
The mass reductions are offset by some added performance enablers,
including dry-sump lubrication, exhaust system with outlet valves,
larger wheels and tires, larger brakes and larger roll stabilizers.
Suspension and brakes – The Z06 retains the 105.7-inch
(2686-mm) wheelbase of other Corvette models, as well as the
short-long arm suspension and transverse spring design, but it rides
on all-new wheels, tires and brakes, as well as its own rear spring
and roll stabilizer.
The firmer suspension works harmoniously with large 18 x 9.5-inch
cast-spun aluminum wheels and 275/35ZR18 tires in the front, and 19
x 12-inch cast-spun aluminum wheels with 325/30ZR19 tires in the
rear. The tires use the latest extended-mobility technology from
Goodyear to provide a satisfactory ride, but still allow the vehicle
to achieve lateral acceleration of more than 1 g. The
extended-mobility tires eliminate the need – and weight – for a
spare tire and jack or inflator kit, while also reducing the chance
of a sudden loss of handling capability.
Complementing the suspension system and large rolling stock is an
equally capable four-wheel disc brake system, consisting of 14-inch
(355 mm) vented and cross-drilled front rotors and 13.4-inch (340
mm) vented and cross-drilled rear rotors.
The front rotors are acted upon by large, red-painted six-piston
calipers that use six individual brake pads. Individual brake pads
are used because they deliver more equalized wear compared to what
would otherwise be a pair of very long single-piece pads. For the
rear brakes, four-piston calipers with four individual brake pads
are used. A four-channel ABS system is standard, as is a very
competent active handling system – complete with a Competitive