you
you're zl1 will love the track but
require some specific preparation before
you go to get the most out of your tires
Chevrolet recommends these alternative
alignment settings and tire pressures
for use on track the tires may get above
the hot pressure spec after a track
session in that case the tires can be
bled down to the hot pressure before the
next track session it's worth noting
that you may receive a low tire pressure
warning following track usage and will
need to reset the tires to the factory
cold pressure setting also be sure to
check your fluids including your engine
oil before every track day the oil
should be checked between every track
session make sure not to overfill your
engine with oil as this can cause
excessive consumption after some time on
the track there are some things you
should do to keep your zl1 performing at
a high level whether fresh from the
factory or OEM replacements your brake
linings always need to be broken in for
a period of approximately 200 miles
before they're ready to perform
efficiently during hard stopping the
brakes also need to be burnished in a
safe location to ensure they are ready
for spirited track driving this means
the pads need to be heated in a
controlled way to cure the resin that
exists within this procedure is
explained in your owners manual and
involves numerous medium break applies
at a force of point 4 g's and heartbreak
applies at point eight GS during various
speeds failure to burnish your brakes
may result in brake fade and affect the
longevity of your brake components
during the burnished procedure you may
notice a smell or see smoke emitting
from your brakes this is normal you're
good your eagle f1 supercar generation
two tires are summer only and are not
recommended for use when temperatures
drop below 40 degrees Fahrenheit or in
snow or ice when not in use the tire
should be stored indoors above 20
degrees Fahrenheit if you'll encounter
conditions below 40 degrees and or snow
or ice GM recommends you use performance
winter tires zl1 tires will exhibit a
unique tread pattern
after some use the outer edge tread
pattern of the tires may appear to be
completely smooth after hard driving and
that is normal the correct way to
measure tire wear on your zl1 is by the
wear bars located farther back on the
tire regardless of where these tires
cannot be rotated each one is
directional and corner specific because
the front and rear are different sizes
your zl1 Brembo brakes with
high-performance semi-metallic linings
will generate brake dust over time there
also may be some deep grooves in the
rotors and slight discoloration of the
writing on the calipers after heavy
track usage this is normal always make
sure your brake ducts are free of debris
and not obstructed prior to use on the
track and before storing your zl1 ensure
that the brakes are dried thoroughly if
they are wet or you wash your car it's
recommended you perform several medium
break applies before letting your zl1
sit for a long period of time if
possible you may also notice a popping
or binding noise if your brakes have not
been used in a while this is normal some
track enthusiasts inspect the underbody
of their zl1 after time spent on the
track if this is an option for you there
are several areas you can examine
visually inspect the boot on your
steering rack its integrity and the
clamps to ensure nothing is loose these
areas can get damaged by road debris if
you do perform a custom alignment adding
paint marks is a good idea to make sure
nothing has moved with weight off the
corners of the car a lateral force can
be applied to the tire assemblies to
check the ball joints tie rod end links
and wheel bearings the boots on your CV
joints located on your 01 half shaft
also can be inspected for cracks or
exposed grease and check all of the
components underneath for traces of oil
which would be a sign of trouble and
should prompt you to bring your zl1 in
for service for more information be sure
to refer to your zl1 owner's manual