CASTER CHANGE
The 0° mount is level with the chassis when
mounted. The 10° mount is angled 10° in relation
to the chassis or lower suspension arm. This angle
provides a change in caster during suspension
movement. The caster angle will change two de-
grees during full suspension travel. Your car will
steer more aggressively when using this option.
The starting or static caster setting is changed in
the same manner using the PTFE caster shims.
Static caster starts at either 2°, 4°, or 6°. A more
detailed example would be a starting caster of 2°
CAMBER
is a word describing the angle at
which the tire and wheel rides relative to the ground
when looked at from the front or back. This is one
of the most important adjustments on the car. Nega-
tive camber means that the tire leans inward at the
top, putting it closer to the centerline of the car
than the bottom of the tire. Positive camber means
just the opposite, the top of the tire is further away
from the centerline of the car than the bottom of
the tire.
Excessive negative camber will decrease trac-
tion but increase stability. Positive camber will also
decrease traction and decrease stability. A tire's
maximum traction is achieved when it is straight
up and down. We suggest a starting setting of 2°
TOE-IN AND TOE-OUT
is a beneficial
adjustment and has a fairly significant effect on the
car. Toe-in will help stabilize your car and it also
removes a small amount of turn in steering. Toe-
out will allow the car to turn in to a corner quicker
but will reduce stability exiting the corner. Both toe-
in and toe-out will scrub speed so try to use as
little, of either, as possible. You adjust the toe-in or
toe-out by adjusting the length of the steering tie-
rod turnbuckles.
FRONT SUSPENSION SPRINGS
are available in various wire sizes as listed below.
Changing springs will increase or decrease steer-
ing. In general a softer spring (smaller wire diam-
eter) will add steering and a harder spring (larger
wire diameter) will decrease steering. Oval racing
will normally require a harder spring than road
course racing. The #8015 L2 kit includes #8427
springs. The #8416 L2O kit includes #8429 springs.
Part Number
Wire Size
#8433
(.024")
Harder
#8431
(.022")
#8429
(.020")
#8427
(.018")
Softer
17
will have 0° caster at full suspension travel and a starting caster of 6° will be only 4° at full suspension travel. This setup is recommended for road racing
applications, giving you the most aggressive steering possible.
REAR
➡
➡
➡
➡
➡
10° mount,
10° mount,
10° mount,
2°-0° caster
4°-2° caster
6°-4° caster
2 shims forward
1 shim each side
2 shims to rear
of negative camber. If you want to add a little more steering, reduce front camber to 1° negative or even 0°. Keep in mind that using little or 0° of camber can
cause the car to be unpredictable. Try to use at least 1 to 2° negative camber at all times. This can be adjusted by turning the upper arm turnbuckles in the
appropriate direction.