2015 CHEVROLET CORVETTE GRAND SPORT brake rotor

Black plate (7,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
Driving and Operating 9-7
.Camber: -2.0 degrees
.Toe: 0.05 degrees toe in
Rear (per corner)
.Caster: 0 degrees
.Camber: -2.0 degrees
.Toe: 0.05 degrees toe in
Thrust Angle: 0 degrees
Rear Axle Fluid
{Caution
During a first time track or racing
event, high rear axle
temperatures can occur. Damage
could be caused to the rear axle
and would not be covered by the
vehicle warranty. Do not drive as
long or as fast the first time the
vehicle is driven on the track or
raced.
The rear axle fluid temperatures
may be higher than when driving in
severe conditions. Drain and refill
with new fluid after the first racing or competitive driving event, and then
after every 24 hours of racing or
competitive driving. See
Recommended Fluids and
Lubricants on page 11-12.
General Information
If reduced performance is
experienced during track events or
competitive driving, turning off the
A/C will help to improve engine
performance.
Maintain a mixture of 40%
DEX-COOL coolant and 60% clean,
drinkable water to optimize engine
performance.
The front license plate bracket or
aero panel should be removed for
track events and competitive driving
to improve engine performance.
Rotor Cooling Ring
The following installation procedure
is for Z51, and only if the vehicle is
equipped with front dual cast brake
rotors along with the supplied brake
cooling ring kit. See your dealer for
information.
If the vehicle is a Z51 and equipped
with a one piece brake rotor a
cooling ring is not required.
{Caution
Do not leave rotor cooling rings
installed after a track event, as
this can cause corrosion with
long-term use. Rotor cooling rings
are for track use only. Track
driving without the rotor cooling
rings may result in brake
pedal fade.
Installation:
1. Remove the front wheels.
2. Cut three 150 mm (6 in) lengths of safety wire specified to T304
Stainless Steel, 0.041 in nominal
diameter, not included.
3. Form each into a U shape with a 20 mm (0.75 in) flat area in the
center of the wire.

Black plate (8,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
9-8 Driving and Operating
4. Place the rotor ring in the gapbetween the rotor brake plate
and rotor hat, with the holes on
each side of the rotor spoke on
the outboard side of the rotor.
5. Place the U-shaped wire through
the holes in the rotor
cooling ring.
6. Bring the ends of the wire tight around the corresponding rotor
spoke.
7. Twist the safety wire into six to eight twists per 2.54 cm (1 in). 8. Bend the twisted wire so it is
flush with the inside of the rotor
ring to prevent contact with the
caliper or brake hoses.
9. Verify that the rotor rings and safety wire do not contact any
other components.
10. Reinstall the wheel using the specific wheel nut torque. See
Capacities and Specifications
on page 12-2.
If additional brake cooling is
required, the grille mesh in the lower
corners of the front grille in front of
the brake duct can be removed.
This is not reversible, and a
replacement grille will not be
covered by the vehicle warranty.
If this is done, it is recommended
that the gap between the fascia and
the cooling duct be taped over.
Brake Burnishing
New brake pads must be burnished
before racing or other competitive
driving.
{Caution
Performing the brake burnish
procedure on a base brake
system can result in brake
damage.
{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-In on page 9-18.
{Caution
Brake pedal fade will occur during
any track burnish procedure and
can cause brake pedal travel and
(Continued)

Black plate (9,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
Driving and Operating 9-9
Caution (Continued)
force to increase. This could
extend stopping distance until the
brakes are fully burnished.
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 Burnish Procedure (Z51 and
Z06 without Z07 Performance
Package)
1. 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 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. Repeatedly apply the brakes from 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 stops.
Repeat until the brake pedal
travel starts to increase.
Depending on conditions, this
should take no longer than 25
brake applications.
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.
Street High Performance Brake
Burnishing Procedure (Z06 with
Z07 Performance Package)
1. From a stop, accelerate as rapidly as possible without
activating traction control to a
speed of 100 km/h (60 mph).
2. Use enough pedal force to completely stop the vehicle in
four to five seconds. If ABS
activates, braking is too hard.
3. Repeat Steps 1 and 2 –50
times. This should take about
10 minutes.
4. After completing the 50 stops, cool the brakes by driving for km
(5 mi) at 100 km/h (60 mph)
As with all high performance brake
systems, some amount of brake
squeal is normal.

Black plate (31,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
Vehicle Care 10-31
Brake Rotor Wear
Z06 models may have ceramic
brake rotors. Visually inspect rotors
whenever the brake pads are
replaced. Weigh rotors before brake
pads are replaced to confirm that
the rotor mass is greater than the
wear-out mass printed on the rotor.
The rotor can be reused if the
weight of the rotor is above the
mass limit. See the service manual
for rotor inspection and weighing
methods. SeeService Publications
Ordering Information on page 13-11.
Brake Rotor Protector
{Warning
Ceramic rotors will be very hot
after operation and touching them
may cause burns. Be sure brake
system is completely cool prior to
installation of protector, or coming
in contact with them.
{Caution
Rotors may be chipped if hard
contact is made with the wheel
during wheel installation or
removal. Always use the rotor
protectors. Follow the wheel
removal and installation
instructions.
A rotor protector should always be
installed before any wheel removal.
Install the protector by feeding it
through the wheel spokes and
slipping it over the outer edge of the
rotor. Leave the protector in place,
over the rotor edge, until the wheel
is reinstalled. Rotor protectors are
available through your dealer.
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service may be required.

Black plate (68,1)Chevrolet Corvette Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7576293) - 2015 - crc - 6/17/14
10-68 Vehicle Care
{Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
ground clearance, and tire
clearance to the body and
chassis.
Tightening Wheel Lug Nuts
{Warning
Never use oil or grease on studs
or the threads of the wheel nuts.
The wheel nuts might come loose
and the wheel could fall off,
causing a crash.
{Warning
Incorrect wheel nuts or improperly
tightened wheel nuts can cause
the wheel to become loose and
even come off. This could lead to
a crash. Be sure to use the
correct wheel nuts. If you have to
replace them, be sure to get new
GM original equipment
wheel nuts.
{Caution
Improperly tightened wheel nuts
can lead to brake pulsation and
rotor damage. To avoid expensive
brake repairs, evenly tighten the
wheel nuts in the proper
sequence and to the proper
torque specification.
Tighten the wheel lug nuts firmly in
a crisscross sequence. See
Capacities and Specifications on
page 12-2.
Tire Chains
{Warning
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes, (Continued)