Chrysler 300 SRT 2019, Owner'S Manual

Page: 145 / 592

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For race track usage it is recommended that
the axle fluid be changed every 4 hours of on
track time.
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Tire pressure:
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40psi (276kpa) hot, recommended 32psi
(221kpa) front, 30psi (207 kpa) rear cold
NOTE:
It is recommended that you target 40psi
(276kpa) Hot Tire Pressure at the conclusion of
each track session. Starting at 32psi (221kpa)
Front and 30psi (207 kpa) Rear Cold and ad-
justing based on ambient & track conditions is
recommended. Tire pressure can be monitored
via the instrument cluster display and can assist
with adjustments.
Track burnishing your brakes:
To avoid “green lining fade” during track use, the
brake pads and rotors must have a thermal
burnish for factory installed components or
when new brake friction components are in-
stalled:
1. Use one track session to burnish brakes by
driving at 75% speed. Brake at approxi-
mately 0.60-0.80g max without ABS inter-
vention.
2. Lap the track in this manner until you start
smelling the brakes. Continue for another
half lap at speed, then do a two lap cool
down with minimal brake applies. Make sure
the brakes are not smoking. If they are, do
another cool down lap.
3. Do not continue for more than one full bur-
nishing lap after you start smelling the
brakes. Do not get them smoking heavily.
This will get them too hot and affect their life
negatively in future track use.
4. Allow vehicle to sit and cool in the paddock
for at least 30 min. If an infrared thermal gun
is available, allow rotors to cool to 200°F
(93.3°C) before going back out.
5. There should be a thin ash layer when in-
specting the pads installed in the caliper.
Having the ash layer go more than half the
thickness of the pad material indicates too
aggressive of a burnish.
6. Sometimes, a second burnish session is
required. If the pads start smelling in the next
track session, reduce speed and braking
decel to burnish targets and follow steps two
through four.
7. New pads installed on old rotors still need to
be burnished. New rotors installed with old
pads should be burnished at the track or
street driven for 300 city miles to develop an
adequate lining transfer layer on the rotor
surface prior to track use.
8. Rotors that pulsate during track use should
be replaced. Resurfacing of the rotors is not
recommended, as it removes mass from the
rotor, reducing its thermal capacity. Resur-
facing also thins the rotor cheek, making it
less robust and increasing the likelihood of
pulsation in further track use.
POWER STEERING
The electric power steering system will give you
good vehicle response and increased ease of
maneuverability in tight spaces. The system will
vary its assist to provide light efforts while
parking and good feel while driving. If the elec-
tric steering system experiences a fault that
prevents it from providing assist, you will still
have the ability to steer the vehicle manually.
WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
Alternate electric power steering efforts can be
selected through the Uconnect System. Refer to
”Customer
Programmable Features” within
“Uconnect Settings” in “Multimedia” for further
information.
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