38
SHOCK PRELOAD
Adjust the front/rear shock spring preload by using preload clips of various
thicknesses above the shock springs.
IMPORTANT!
Make equal adjustments on both left and right sides of the car.
Shock preload Characteristics
Less preload =
thinner/less spacers
· lower ride height
· may give higher corner speed on high bite tracks
· better suited to smooth tracks
More preload =
thicker/more
spacers
· higher ride height
· less prone to bottoming out
· better suited to rough tracks
!
STEERING
You can adjust the Ackermann angle and the spring preload of the central servo saver.
ACKERMANN
Adjust the Ackermann angle by moving the inside ends of the steering rods into
different holes in the steering plate.
Steering rod inner mounting position Characteristics
Forward holes = steeper angle
· smoothens out steering response
· car reacts smoothly
· better suited to smooth flowing tracks with high speed corners
Rearward holes = shallower angle
· quickens initial steering response
· car reacts faster to steering input
· better suited to small, tight tracks
You can use shock springs of different rates to alter performance.
Shock springs Characteristics
Softer
· more chassis roll
· more traction
· better on bumpy tracks
· increases chance of bottoming out when landing
Stiffer
· less chassis roll
· less traction
· more responsive
· better on smooth tracks
· decreases chance of bottoming out when landing
SHOCK MOUNTING POSITION
You can change the shock mounting position by leaning the shocks at different angles, and also moving the shock closer or further from the centerline of the car. You accomplish this by
moving the shock top and bottom mounts to different locations on the shock towers and lower arms
Shock position
Characteristics
More inclined =
moving in on tower and/or
moving out on lower arm
· softer initial damping
· more progressive damping
· more lateral (side) traction
· makes the handling more ”forgiving”
· may be better on high-bite tracks,
since it slows down the handling and
makes it easier to driver
Less inclined =
moving out on tower and/or
moving in on lower arm
· harder damping
· less lateral (side) traction
· makes the car more responsive
· usually better suited on technical tracks
XT8 SET-UP
IMPORTANT!
Make equal adjustments on both left and right sides of the steering plate.
UPPER SHOCK
POSITION
REAR LOWER SHOCK POSITION
1 2
3 4
5 6
7 89
1011
12
FRONT LOWER SHOCK POSITION
1
2
3
1
2
3
4
5
6
7
8
3
2
1
Shock spacer
Shock spacer
ACKERMAN POSITION
1 2 3
Summary of Contents for XT8
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