Dodge 2016 Viper SRT ACR Owner's Manual page 31

5.3 Compression And Rebound Adjustment
The compression adjustment (also called bump) varies the damping of the upward travel of the wheel
relative to the vehicle.
The rebound adjustment (also called droop) varies the damping of the downward travel of the wheel relative
to the vehicle.
The compression adjuster (Blue adjustment wheel) and rebound adjuster (Red adjustment wheel) are located
on top of the piston rod, and each have 10 damping positions. Depending on vehicle ride height, the car may
need to be raised to gain access to the adjuster. To adjust the compression and rebound damping, turn the finger
knob: to higher numbers stiffens; to lower numbers softens.
CAUTION: To avoid damage to your dampers, DO NOT force the finger knob when it stops turning.
Also, NEVER use any tools to adjust the finger knob.
Position "1" is full soft. Position "10" is full stiff.
5.4 Street Set Up
Best comfort is achieved at the following damper settings and should always be used when driving on the street:
Front: Compression = Position "1"
Rebound = Position "1"
Rear: Compression = Position "1"
Rebound = Position "2"