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ACURA ARX-06 GTP // USER MANUAL
ARB BLADES
The ARB Blades (or arms) can be changed to further tune the suspension roll stiffness beyond only the ARB size setting. This
option changes the orientation of the ARB blades and are given numerical values for simplicity, with #1 being the softest option
and the blades becoming stiffer as the value is increased to the maximum setting of #5. Based on stiffness the blade option will
produce the same result as a similar adjustment to the ARB Size: Stiffer blade settings will increase front roll stiffness and induce
understeer while softer blade settings will reduce front roll stiffness and reduce understeer. This setting can be adjusted in the
car from the F8 black box using the “FARB” setting.
TOE-IN
Toe is the angle of the wheel, looking from vertical, relative to the chassis centerline. Toe-in is when the front of the wheels are
closer to the centerline while Toe-out is when the front of the wheels are farther from the centerline than the rear of the tires.
On the front end, Toe will alter how quickly the tires respond to steering inputs and influence how stable the car is in a straight
line. Toe-out settings (negative garage value) will increase turn-in response and make the car less stable in a straight line, while
Toe-in (positive garage value) will increase straight-line stability while making initial steering response more sluggish.
PUSHROD LENGTH DELTA
This adjusts the length of both front suspension pushrods together, shown as an offset from a baseline length figure.
This is a great way to adjust front ride height without altering the preload on the Heave Spring.
REAR
HEAVE SPRING
The Heave Spring is a suspension element that handles loads when the chassis moves in a purely vertical direction and does not
experience loads generated from chassis roll. The rear Heave Spring will influence the chassis’ handling balance during braking
and over bumps, but is primarily intended to control increasing aerodynamic loads with higher speeds. Stiffer Heave Spring rates
will stiffen the suspension in vertical travel and result in a more consistent aerodynamic platform but can reduce mechanical
grip over rough surfaces. Softer Heave Springs will increase mechanical grip but could allow too much movement to keep the
aerodynamic behavior consistent.
HEAVE PERCH OFFSET
The Heave Perch Offset is a way to preload the Heave Spring element, allowing rear ride height changes without inducing any
asymmetric loading to the suspension. Decreasing the value will preload the Heave spring and raise the rear ride heights,
increasing the value will unload the spring and lower the rear ride heights.
ACURA ARX-06 GTP // CHASSIS
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