If your SRT vehicle is equipped with Drive Modes, they will alter the vehicle’s performance in various driving situ- ations. It is recommended that your vehicle operates in SPORT or TRACK modes during the track event.
Prior to each track event, verify all fluids are at the correct levels.
Prior to each track event, verify the front and rear brake pads have more than half pad thickness remaining. If the brake pads require changing, complete a brake burnish procedure prior to track outing at full pace.
NOTE:
Use of DOT 4 brake fluid is suggested for extended truck usage due to increased thermal capacity.
At the conclusion of each track event, it is recommended that a brake bleed procedure is performed to maintain the pedal feel and stopping capability of your Brembo High Performance brake system.
It is recommended that each track outing should end with a minimum of one cooldown lap using minimal braking.
All SRT vehicles are track tested for 24 hours of endurance, however, it is recommended that suspension system, brake system, prop shaft, and half shaft boots should be checked for wear or damage after every track event.
Track usage results in increased operating temperatures of the engine, transmission, driveline, and brake system. This may affect Noise Vibration Harshness (NVH) countermea- sures designed into your vehicle. New components may need to be installed to return the system to the original NVH performance.
Tire pressure:
Recommended tire pressure of 33 psi (230 kPa) when tires are cold, or below 42 psi (290 kPa) when hot.
NOTE:
It is recommended that you target below 42 psi (290 kPa) when tires are hot at the conclusion of each track session. Starting at 33 psi (230 kPa) cold and adjusting based on ambient and 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 installed:
Use one track session to burnish brakes by driving at 75% speed. Brake at approximately 0.60 - 0.80g max without Anti-Lock Brake System (ABS) intervention.
Complete one lap in this manner until you start smelling the brakes. Continue for another half lap at speed, then complete a two-lap cooldown with minimal brake appli- cations. Ensure the brakes are not smoking. If they are, complete another cooldown lap.
Getting the brakes to smoke is indication that the brakes have overheated and may negatively affect future track usage.
Allow vehicle to sit and cool for at least 30 minutes. If an 9
infrared thermal gun is available, allow rotors to cool to 200°F (93.3°C) before returning to the track.
There should be a thin layer of ash when inspecting the brake pads. Having the ash layer go more than half the thickness of the pad material is a sign of an overly aggres- sive burnish.
Occasionally, a second burnish session is required. If the brake pads begin to emit an odor during the next track session, reduce vehicle speed and braking deceleration rate to burnish targets and follow steps 2-4.
New brake pads installed on old rotors require a burnish. New rotors installed with old brake pads should be burnished at the track or driven for 300 miles (485 km) of city driving to develop an adequate lining transfer layer on the rotor surface prior to track use.
Rotors that pulsate during track use should be replaced.
NOTE:
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.