Mitsubishi Evolution X. Manual — part 62

GENERAL INFORMATION

TSB Revision

FRONT SUSPENSION

33-2

GENERAL INFORMATION

M2330000101281

The MacPherson strut type suspension is adopted.

IMPROVEMENT IN SUSPENSION
RIGIDITY

• Based on the highly rigid full-flat crossmember,

by adding the reinforcement part such as a brace,
the respective rigidity of the crossmember has
been improved significantly.

• The forged knuckle has been adopted. The defor-

mation of knuckle by ground contact force has
been suppressed, and the camber rigidity and lat-
eral rigid brake caliper supporting rigidity have
been improved.

IMPROVEMENT IN CORNERING
PERFORMANCE

• The 18-inch low-aspect ratio tire has been

equipped, the wheel tread has been widened,
and the suspension rigidity has been improved,
for better cornering performance and cornering
limit.

• By adopting the 18-inch low-aspect ratio tire, the

caster trail amount has been increased, resulting
in the better steering feel and steering response
for slight steering operation.

• The caster angle has been increased and the

camber angle to the ground while operating the
steering wheel has become negative, for better
cornering performance within the middle and
large steering angle range.

• By widening the stabilizer diameter, the optimal

roll posture for cornering limit improvement has
been secured.

IMPROVEMENT IN QUALITY

• The compact lower arm pillow ball bush has

newly been designed. The stroke feeling by the
pillow has been improved, the rubber damping
characteristics has been tuned, and the vibration
from the ground has been reduced, for improved
quality.

• The Bilstein shock absorber and the Eibach coil

spring

have been established.<GSR: optional

equipment, MR: standard equipment>.
NOTE:

: The Eibach coil spring has widely been

adopted in the motor sport field; sports vehicles in
Europe, F1, WRC, etc.

WEIGHT SAVING

• To respond the increase of weight and ground

surface force by adopting the 18-inch low-aspect
ratio tire, the suspension structure has been opti-
mized, resulting in weight saving.

• By adopting the Bilstein shock absorber, the

outer cylinder thickness has been reduced,
resulting in weight saving.

IMPROVEMENTS IN RELIABILITY

• The deep groove upper bearing, which supports

the vehicle weight to the strut upper insulator, has
been enlarged and sealed for the better reliability.

• The upper part of the coil spring has been

squeezed, making the pig-tail shape. Conse-
quently though the vehicle weight is increased
and the spring constant is high, the gap between
coils can be widened, reducing the rattle noise
and scratches.

HEXAVALENT CHROMIUM-FREE
COMPONENT

• Hexavalent chromium has been eliminated from

bolts and nuts.

LEAD-FREE COMPONENT

• The lead-free grease has been adopted for the

ball joint.