Track Usage Guidelines; Pre-Run Checks; Drag Mode Operations - Dodge CHALLENGER DEMON 170 2023 Owner's Manual Supplement

30

PRE-RUN CHECKS

The following instructions are meant to provide drivers
a step-by-step guide on how to use the Demon 170's
unique features at a drag strip.
NOTE:
DRAG mode features (Line Lock, TransBrake™ 2.0, and
Launch Control) are not available within the first
500 miles (805 kilometers) of engine break-in.
CAUTION!
Usage of fuels other than those specified in this
Supplement will damage O2 sensors and catalytic
converters.
For maximum engine power, the ethanol percentage
must be 65% or higher, as indicated in the instrument
cluster display. For more information
Drag Strip Tire Pressures Pre-Run Checks:
•
ET Street R Rear Tires — depending on the outside
temperature and track conditions the operating
pressure recommendation is 18-24 psi (124–
165 kPa) hot.
•
Front Runner Tires — should not exceed maximum
tire inflation rating.
NOTE:
Mark the tire side wall and rim to watch for potential
tire rotation on the rim. Tire rotation is common and
may require rebalancing of the rear tires post track use.

TRACK USAGE GUIDELINES

Wheel Lug Nut Torque Pre-Run Check: 111 Ft-Lbs
(150 N-m). Refer to
instructions.
Fluids Pre-Run Check:
•
Verify all fluid levels are in the correct range and at
normal operating temperature.
•
Transmission is filled for life, refer to the service
manual or an authorized dealer for further details.
•
Verify all gauges are in their normal operating
ranges.
•
Ensure that the fuel level is above 3/8ths tank.
•
To maintain the necessary air to fuel ratio, addi-
tional fuel flow is required as ethanol content
increases. "Race" fuels with ethanol content above
85% will not increase engine power and are not rec-
ommended, as the necessary fuel flow may be more
than the injectors can provide. If this condition is
detected, engine performance will be reduced.
page 10.
Remove all loose items from the trunk and interior.

DRAG MODE OPERATIONS

1. Enable DRAG Mode — A quick double press of the
"SRT" button is a shortcut to enable DRAG mode.
DRAG mode can also be accessed through the
radio.
2. Ethanol Power Blends — The fuel system sensor
measures ethanol content and will display the
detected percentage in the instrument cluster dis-
play. Full power is available for blends above 65%.
3. Line Lock — Warm the tires by using Line Lock
page 31 for step-by-step
4. Launch the vehicle via one of the following methods,
NOTE:
In hot weather conditions, the engine may automatically
reduce torque to prevent the supercharger discharge
temperature from exceeding its limit. If this occurs, an
abrupt reduction or limit of engine torque may be
noticed.
(burnout)
page 15.
listed here in ascending order of required driver
skill:
○ Launch Control — Delivers maximum engine
torque at launch and manages tire slip with a
special traction control program. This method is
easiest to use, but can be outperformed by a
skilled driver page 21.
○ TransBrake 2.0™ Launch — This allows the
driver full control of the torque delivery at
launch without having to precisely modulate the
accelerator pedal. If grip allows, this method
can provide more launch torque than is possible
with the other methods page 16.
○ Brake-Torque Launch — This allows the driver
full control of the torque delivery at launch via
the rate of accelerator pedal application
page 12.