HOMEPRODUCTSUSPENSION2 Way PILLOW BALL UPPER MOUNT

SUSPENSION

SUSPENSION Series

PAT.P:2003-300407

2way PILLOW BALL UPPER MOUNT(2 Way PILLOW BALL UPPER MOUNT

[2 Way PILLOW BALL UPPER MOUNT]

With this 2way Pillow Ball Upper Mount, camber angle and caster angle can both be adjustable independently, and the strut can be secured firmly. This product was the leading figure for the severe slide control setting for D1GP.

* Not sold separately

Camber angle and Castor angle can both be adjusted independently. Also by changing the left and right mounts, the castor can be adjusted further to give a wider range of adjustment.

* Depending on the dampers used, The overall length of the damper may change due to differences in collars and bearings affecting the maximum ride height. (This does not affect dampers with full length adjustment.)

* For front dampers only.

"Caster Angle and Characteristics" & Structure

<Caster Angle >
  • When viewing the wheel from the side, the angle of the king pin is referred to as castor angle and has a large effect on straight line stability and steering response.
  • As castor angle increases, straight line stability is increased but with reduced steering response.
<Caster Angle Change >

Straight Driving Stability/Steering Response

  • By "standing up" or decreasing castor angle, quick handling can be achieved as well as reducing "castor action". >> Good for low speed driving at a corner, Gymkhana
  • By "laying down" or increasing castor, steering self centering force is increased on corner exit under acceleration and allows for more stable cornering and transitions during drifting. >> Good for Drift

Understeer/Uneven Tire Wear

  • For high speed circuit use, negative camber on the outside wheel is increased when cornering reducing understeer. Moreover, as the negative camber is reduced under normal circumstances, uneven tire wear can be reduced. >> Good for high speed cornering, Circuit driving

Caster Angle

What is Castor Angle?

When viewing the wheel from the side, the angle of the king pin is referred to as castor angle and has a large effect on straight line stability and steering response. As castor angle increases, straight line stability is increased but with reduced steering response. Conversely, with lower castor angle, good steering response ids achieved at the expense of straight line stability.

For Low Speed/Pylon courses

By "standing up" or decreasing castor angle, quick handling can be achieved as well as reducing "castor action".

For High Speed Corners/Circuit or drift use

By "laying down" or increasing castor, steering self centering force is increased on corner exit under acceleration and allows for more stable cornering and transitions during drifting. For high speed circuit use, negative camber on the outside wheel is increased when cornering reducing understeer. Moreover, as the negative camber is reduced under normal circumstances, uneven tyre wear can be reduced.

Adjustment of Camber & Caster

* e.g. Silvia/180SX

(When placing the HKS logo to the bottom as shown in the diagram above, the center of the pillow ball comes toward the left from the center of the mount.)

(When placing the HKS logo to the bottom as shown in the diagram above, the center of the pillow ball comes toward the right from the center of the mount.)


* The caster adjustable range may vary depending on which side of the vehicle each mount is fitted to.

  Vehicle Left Side Vehicle Right Side
To INCREASE caster over standard: Mount B Mount A
To REDUCE caster over standard: Mount A Mount B

To adjust the camber angle, loosen 2 camber adjustment bolts.
To adjust the caster angle, loosen a caster adjustment bolt.

Please refer to the installation manual for detailed adjustment procedures.

* Applicable HKS Suspension - HIPERMAX III

Reference for Alignment (Front: Lancer Evolution IV/V/VII)

Caster

Vehicle CN9A CP9A
Stock Recommended Value 3°50' ± 30' 3°54' ± 30'
Performer Default Height△43mm 3°30' -
Adjustable Range Max. ±2° of the vehicle' height above (12'(0.2°)/scale)

Camber

Vehicle CN9A CP9A
Stock Recommended Value -1°00' ± 30' -1°00' ± 30'
Performer Default Height△43mm -2°00' -
Adjustable Range Max. -2°20' (12'(0.2°)/scale) of the vehicle's height above.