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REAR ROLL CENTER
1.8.2
Typically on off-road cars (such as the XRAY XB808) rear roll center is adjusted using
the rear upper camber link inner mounting position on the rear shock tower. Those
same holes on the rear shock tower may also be used to adjust camber rise. For more
information, see the section on Camber & Camber Rise.
For information on adjusting rear roll center on cars with other adjustment possibilities
(for example, the outer lower pin) please refer to the manufacturer’s original detailed
documentation.
EFFECTS OF REAR ROLL CENTER ADJUSTMENT
REAR ROLL CENTER
CHARACTERISTICS
Higher
•
Increases on-power traction
•
Use to avoid traction rolling at corner entry
•
Use under low-traction conditions
Lower
•
Decreases rear traction into corner
•
Increases steering into corner
•
Use to avoid traction rolling mid-corner and corner exit
REAR UPPER CAMBER LINK -
LENGTH
CHARACTERISTICS
Shorter link (outer hole on tower and/
or inner hole on hub)
• Increases steering and decreases
stability into corner
• Increases on-power traction slightly
Longer link (inner hole on tower and/or
outer hole on hub)
• Decreases rear camber gain
• Increases stability
• Slows down the car‘s responsiveness
REAR UPPER CAMBER LINK -
SHOCKTOWER
EFFECT ON REAR ROLL CENTER
Upper holes
• Lower rear roll center
Lower holes
• Higher rear roll center
ADJUSTING REAR ROLL CENTER
Use the mounting positions of the rear upper camber link to adjust rear roll center.
Inner mounting position:
• The inner end of the rear upper camber
link can be attached to the rear shock
tower in several different positions.
Outer mounting position:
• The outer end of the rear upper camber
link can be attached to the rear hub in
one of several positions.
IMPORTANT!
Make equal adjustments on both left and right sides of the car. Recheck rear camber after
adjusting rear roll center.
