2023 CHEVROLET CORVETTE Owners Manual

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
176 Driving and Operating
Caution
The new vehicle break-in period should be
completed before performing the brake
burnish procedure, otherwise damage
may occur to the powertrain/engine. See
New Vehicle Break-In0189.
Caution
Brake pedal fade will occur during any
track burnish procedure and can cause
brake pedal travel and force to increase.
This could extend stopping distance until
the brakes are fully burnished.
New brake pads must be burnished before
racing or other competitive driving.
When this procedure is performed as
instructed, it will not damage the brakes.
The brake pads will smoke and produce an
odor. The braking force and pedal travel
may increase. After the procedure, the brake
pads may appear white at the rotor contact.
Perform this procedure only on dry
pavement, in a safe manner, and in
compliance with all local and state
ordinances/laws regarding motor vehicle
operation. Brake Burnishing Procedure for J55 (Stingray
with Z51) and J56 (Z06 Standard) Brakes
This brake burnish procedure should only be
performed on vehicles with the Z06 with
J56, or Z51 with J55 factory equipped brake
systems.
1. Using the friction bubble in the Cluster Performance menu, apply the brakes 25
times starting at 100 km/h (60 mph) to
50 km/h (30 mph) while decelerating at
0.4 g. See Instrument Cluster 079. This
is a medium brake application. Drive for
at least 1 km (0.6 mi) between applying
the brakes. This first step may be
skipped if there are more than 320 km
(200 mi) on the brake pads.
2. Apply the brakes 25 times starting at 100 km/h (60 mph) to 25 km/h (15 mph)
while decelerating at 0.8 g. This is a hard
brake application without activating the
Antilock Brake System (ABS). Drive for at
least 1 km (0.6 mi) between applications.
Depending on conditions, some increase
in brake pedal travel and brake pedal
force may be experienced.
3. Cool down: Drive at 100 km/h (60 mph) for approximately 15 km (10 mi) without
using the brakes. 4. Apply the brakes 25 times from
100 km/h (60 mph) to 50 km/h (30 mph)
while decelerating at 0.4 g. This is a
medium brake application. Drive for at
least 1 km (0.6 mi) between applications.
As with all high performance brake systems,
some amount of brake squeal is normal.
Brake Burnishing Procedure for Z06 with
Available J57 Carbon Ceramic Brakes
This brake burnish procedure should only be
run on Z06 vehicles with J57 factory
equipped brake systems.
Perform this procedure only on dry
pavement, in a safe manner, and in
compliance with all local and state
ordinances regarding motor vehicle
operation. 1. Using the friction bubble in the Cluster Performance menu, apply the brakes 25
times starting at 100 km/h (60 mph) to
50 km/h (30 mph) while decelerating at
0.4 g. This is a medium brake
application. Drive for at least 1.6 km
(1.0 mi) between applications. This first
step may be skipped if there are more
than 320 km (200 mi) on the brake pads.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
Driving and Operating 177
2. Apply the brakes 20 times starting at100 km/h (60 mph) to 25 km/h (15 mph)
while decelerating at 0.8 g. This is a
hard brake application. Drive for at least
1.6 km (1.0 mi) between applications.
3. Apply the brakes 12 times starting at 100 km/h (60 mph) to 8 km/h (5 mph)
while decelerating at 0.8 g. This is a
hard brake application. Accelerate as
rapidly as possible without activating
traction control between applications.
4. Cool down: Drive at 100 km/h (60 mph) for approximately 15 km (10 mi) without
using the brakes.
As with all high performance brake systems,
some amount of brake squeal is normal.
Alternative Closed Course Brake Burnishing
Procedure for J55 (Stingray with Z51), J56
(Z06 Standard), and J57 (Z06 Carbon Ceramic)
Brakes
This brake burnish procedure should be run
on vehicles with the Z51 with J55, Z06 with
J56, or Z06 with J57 factory equipped brake
systems. This procedure should only be run on a
track and only on dry pavement. Brake
pedal fade will occur during this track
burnish procedure and can cause brake pedal
travel and force to increase. This could
extend stopping distance until the brakes
are fully burnished.
1. Start track lapping at lower speeds and lower braking efforts for three minutes
of driving. Allow for increased braking
distances due to reduced brake output.
2. After Step 1, increase speed and braking effort for the next six minutes of
lapping, gradually ending up at 90%
effort. Continue to allow for increased
braking distance due to reduced brake
output.
3. Cool the brakes by lapping with minimal light braking for six minutes. Brake Cooling Kit
Before any track event, high speed driving
event, or competitive driving, the following
should be completed:
.Ensure all brake cooling parts are
correctly and securely installed.
.Install the rear lower control arm cooling
ducts per the instructions included with
the kit. After any track event or
competitive driving, remove the rear
lower control arm cooling ducts. These
parts are for track use only. Removing the
ducts helps prevent debris from being
channeled into the rear brakes during
regular use of the vehicle.
.Inspect for and remove any blockage in
the ducts.
.Inspect and replace any duct that has
damage.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
178 Driving and Operating
Right Side Front Shown, Left Side FrontSimilar
1. Front Brake Cooling Duct
2. Front Lower Control Arm DeflectorRight Side Rear Shown, Left Side Rear Similar
3. Rear Knuckle Mounted Cooling Duct
4. Rear Lower Control Arm Cooling Duct
Aerodynamics
Underbody Strake Inspection (For Z06
Vehicles With Spoiler Regular Production
Options (RPO) TOF or TOG)
Left Side Shown, Right Side Similar
For optimal aero performance, ensure the
front strakes are solidly attached to the
underbody and damage free. If not, replace
with service parts.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
Driving and Operating 179
Corvette Z06 Recommended Aerodynamic
Configurations
Rear Spoiler With Tall Wickers Shown, ShortWickers Similar
Front Underwing Stall Gurney Flaps Refer to the following table for setting up
the Z06 for optimized aerodynamic
performance. Street Driving targets the
lowest aerodynamic drag, whereas Track
Driving targets optimal downforce balance.
Setup will vary based on the vehicle’s
front splitter, front underwing, and rear
spoiler/wing configuration.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
180 Driving and Operating
RPO CodeStreet Driving - Recommended Aerodynamic
Configuration
Track Driving - Recommended Aerodynamic
Configuration
Front RearFront Rear
Z06 Front underwing stall Gurney flaps installed.
Front fascia aero cover
installed. Short rear spoiler wickers
installed. No rear lower
control arm brake duct.
Remove front underwing
stall Gurney flaps. Remove
front fascia aero cover.Install tall rear spoiler
wickers. Install rear lower
control arm brake duct.
Z06 and CFV/CFZ Front underwing stall Gurney flaps installed.
Front fascia aero cover
installed. Short rear spoiler wickers
installed. No rear lower
control arm brake duct.
Front underwing stall
Gurney flaps installed.
Remove front fascia aero
cover.Install tall rear spoiler
wickers. Install rear lower
control arm brake duct.
Z06 and CFV/CFZ and T0G/T0F No front underwing stall
Gurney flaps. Front fascia
aero cover installed. No rear lower control arm
brake duct.
No underwing stall Gurney
flaps. Remove front fascia
aero cover. Install four
underbody strakes.Install rear lower control
arm brake duct.
Z06 and Z07 No front underwing stall Gurney flaps. Front fascia
aero cover installed. No rear lower control arm
brake duct.
No underwing stall Gurney
flaps. Remove front fascia
aero cover. Install four
underbody strakes.Install rear lower control
arm brake duct.
Z06 and 5V5 Front underwing stall Gurney flaps installed.
Front fascia aero cover
installed. No rear lower control arm
brake duct.
Front underwing stall
Gurney flaps installed.
Remove front fascia aero
cover.Install rear lower control
arm brake duct.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
Driving and Operating 181
Shock Spring Seat Adjustment
The front shocks, on vehicles without
hydraulic front lift and rear shocks, have
threaded spring seats that allow adjustment
of the preload on the coil springs. The
vehicle corner weights can be adjusted for
track use. If the vehicle trim height is
modified, it should be returned to normal
trim height before street use.
The spring seat can be adjusted
approximately 20 mm (0.8 in) up or down
from the nominal position. Each complete
turn of the spring seat will change the
vehicle height approximately 1.5 mm
(0.06 in). When adjusting the seat to the
upper limit, lift the dust boot and ensure
the seat does not thread off the center
support tube (stop adjustment when threads
no longer visible). When adjusting the seat
to the lower limit, leave approximately
10 mm (0.4 in) of thread visible for the
lower lock nut to have full thread
engagement.
The following procedure can be complex and
should only be performed by trained
personnel. See your dealer.To adjust the lower spring seat:
1. Raise the vehicle so the tires are completely off the ground.
Front Shown, Rear Similar
2. Loosen the lower spring seat lock nut (2).
3. Thread the lower spring seat lock nut (2) downward off of the threads to its
resting location on the shoulder of the
center support tube.
4. While holding the center support tube holes, turn the spring seat (1) upward to
increase spring preload, or downward to
decrease spring preload. 5. Thread the lower lock nut (2) back on to
the center support tube and torque it
against the spring seat (1) to 25 Y
(18.4 lb ft).
Load Limit (Stingray Z51)
Limit vehicle load to the driver only, with no
other cargo. Inflate the front tires to 160 kPa
(23 psi) and the rear tires to 165 kPa (24 psi).
Drive at a maximum speed of 296 km/h
(184 mph).
Road Course target hot pressures are
220–240 kPa (32–35 psi). Value will vary
based on driving style, track, temperature,
and weather conditions. See Tire Pressure for
High-Speed Operation 0279 for high speed
non-track use.
Load Limit (Z06)
Tracks with Combined High-Speed and
High-Load Corners
(e.g., Nurburgring Nordschliefe, Spa
Francorchamps, or similar)
Limit the vehicle to the driver and one
passenger, with no additional cargo.

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
182 Driving and Operating
Cold Tire Pressure Requirement: Inflate tires
to no less than 210 kPa (30 psi) front and
rear, cold.
Hot Tire Pressure Target Range:
220–240 kPa (32-35 psi).
Road/Street Courses
(e.g., Virginia International Raceway, Road
Atlanta, or similar)
Limit the vehicle to the driver and one
passenger, with no additional cargo.
Cold Tire Pressure Requirement: Inflate tires
to no less than 165 kPa (24 psi) front and
rear, cold.
Hot Tire Pressure Target Range:
220 –240 kPa (32-35 psi).
See Tire Pressure for High-Speed Operation
0 279 for high speed non track use.
Wheel Alignment
Caution
Using these wheel alignment settings
may cause excessive tire wear. Only use
these wheel alignment settings for racing
(Continued)
Caution (Continued)
or competitive driving. Excessive tire wear
is not covered under the vehicle
warranty.
Caution
Do not use power tools when removing
or installing the fasteners. Damage to the
threads may occur. Use hand tools only,
and do not overtighten. Hand start the
fasteners to ensure that the threads do
not bind or cross thread.
The racing and competitive driving wheel
alignment settings should be set as
described here.
Stingray Z51
To achieve the track alignment specified
settings: 1. The upper control arm to body washers on all four corners must be moved from
between the body and the control arm
and relocated between the head of the
bolt and the control arm. 2. Adjust the lower control arm cam bolt
position to achieve the following
specifications:
Front (per corner)
.Caster: +8.0 degrees
.Camber: -3.0 degrees
.Toe (total): 0.1 degrees toe in
Rear (per corner)
.Caster: 0 degrees
.Camber: -2.5 degrees
.Toe (total): 0.1 degrees toe in
.Thrust Angle: 0 degrees
After track use, reinstall washers between
the body and the control arms. Reset to
factory alignment settings. See your dealer.
Z06 1. The upper control arm washers do not need to be removed for Z06.
2. Adjust the lower control arm cam bolt position to achieve the following
specifications:
Front (per corner)
.Caster: +8.0 degrees
.Camber: -2.0 degrees
.Toe (total): 0.1 degrees toe in

Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16287457) - 2023 - CRC - 3/10/22
Driving and Operating 183
Rear (per corner)
.Caster: 0 degrees
.Camber: -2.0 degrees
.Toe (total): 0.1 degrees toe in
.Thrust Angle: 0 degrees
Z06 with Z07 Performance Package Equipped
With Carbon Fiber Wheels (RPOs ROY
and ROZ)
When participating in Track Events or
Competitive Driving with these wheels, a
proper cool down without hot soaking the
wheels is critical.
.On a typical road course 3.2–6.5 km
(2-4 miles) long per lap, one cool down
lap without using the brakes will suffice.
If the track being driven is shorter than
3.2 km (2 mi), perform two cool down
laps without using the brakes.
.If adequate cool down without using the
brakes cannot be achieved (i.e., red flag
on track, have to stop unexpectedly, etc.),
the key is to not have one area of the
wheels exposed to the "chimney effect"
of the heat that rises off of a stationary
hot brake rotor. This can be prevented by
very low speed driving of the car such
that the entire circumference of the wheel is exposed to the heat. Rolling the
car back and forth in a small space is
better than sitting still with hot brakes.
Driving on Wet Roads
Rain and wet roads can reduce vehicle
traction and affect your ability to stop and
accelerate. Always drive slower in these
types of driving conditions and avoid driving
through large puddles and deep-standing or
flowing water.
{Warning
Wet brakes can cause crashes. They
might not work as well in a quick stop
and could cause pulling to one side. You
could lose control of the vehicle.
After driving through a large puddle of
water or a car/vehicle wash, lightly apply
the brake pedal until the brakes work
normally.
Flowing or rushing water creates strong
forces. Driving through flowing water
could cause the vehicle to be carried
away. If this happens, you and other
vehicle occupants could drown. Do not
(Continued)
Warning (Continued)
ignore police warnings and be very
cautious about trying to drive through
flowing water.
Caution
Driving through deep puddles or standing
water can cause water to come in
through the engine air intake and
damage the engine. If deep puddles or
standing water cannot be avoided,
proceed with caution and do not exceed
8 km/h (5 mph). Do not drive through
water that may come close to or cover
the vehicle’s underbody.
Hydroplaning
Hydroplaning is dangerous. Water can build
up under the vehicle's tires so they actually
ride on the water. This can happen if the
road is wet enough and you are going fast
enough. When the vehicle is hydroplaning, it
has little or no contact with the road.
There is no hard and fast rule about
hydroplaning. The best advice is to slow
down when the road is wet.