Dampers - Acura iRacing ARX-06 GTP User Manual

ACURA ARX-06 GTP // CHASSIS
T ORSIO N BAR OU T ER DI AME T E R
The corner Torsion Bars are the spring elements for each corner of the car and behave in the same way as a conventional
coil spring. The Outer Diameter of each torsion bar determines the bar's spring rate and how stiff the bar is through changing
suspension loads. Larger diameter bars will have a higher spring rate and will be stiffer, which is great for maintaining a consistent
aerodynamic attitude around the track but will reduce mechanical grip, especially in slow corners. Smaller torsion bars will have
a lower spring rate and produce more mechanical grip, however the extra movement from the suspension can hurt aerodynamic
performance at high speeds.
C AMBER
Camber is the vertical angle of the wheel relative to the center of the chassis. Negative camber is when the top of the wheel is
closer to the chassis centerline than the bottom of the wheel, positive camber is when the top of the tire is farther out than the
bottom. Due to suspension geometry and corner loads, negative camber is desired on all four wheels. Higher negative camber
values will increase the cornering force generated by the tire, but will reduce the amount of longitudinal grip the tire will have
under braking and throttle. Excessive camber values can produce very high cornering forces but will also significantly reduce
tire life, so it is important to find a balance between life and performance.

DAMPERS

L S C OMPRES SION DAMPING
Low Speed Compression affects how resistant the shock is to compression (reduction in length) when the shock is moving at
relatively low speeds, usually in chassis movements as a result of driver input (steering, braking, & throttle) and cornering forces.
Higher values will increase compression resistance and transfer load onto a given tire under these low-speed conditions more
quickly, inducing understeer on throttle application.
For shocks on the front end, increasing Low-Speed Compression can induce understeer under braking and at turn-in, reducing
it will reduce understeer. Increasing Low-Speed Compression on the rear of the car will increase traction on initial throttle
application, while reducing it can reduce on-throttle understeer.
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ACU R A AR X-0 6 G T P // US ER M AN UA L