9
SHOCK OIL
The Vendetta TC comes stock with 30 weight oil in the
shocks. The handling of the car can be tuned by changing
the shock oil to either heavier (bigger number) or lighter
(smaller number). By putting heavier oil in the shocks, the
car will have less chassis roll and become more responsive.
Putting lighter oil in the shocks will cause the car to be less
responsive and have more chassis roll. For smooth, high
traction surfaces, a thicker oil would be best. For low traction
or bumpy surfaces, a lighter oil would be best.
FRONT TRACK WIDTH
The Vendetta TC has adjustable front track width due to its
pivot ball knuckle design. To decrease track width, screw the
upper and lower pivot balls in equally. To increase track width,
screw the upper and lower pivot balls out equally. Make sure
to have both sides the same distance from the end of the
upper and lower arms. You can check this by measuring from
the end of the upper and lower arm to the outside of the
knuckle. Track width affects the car’s handling and steering
response. Wider front track width decreases steering reaction
and front grip. Narrow front track width increases steering
reaction and front grip.
DROOP
The Vendetta TC has adjustable front and rear droop (or
chassis up travel). Droop is the distance the chassis lifts
from ride height until the wheels come off the ground. Droop
is another way to control the weight transfer of the chassis
besides shock oil and springs. To reduce the amount of front
or rear droop, screw in the droop screws on the upper arms.
To increase the amount of front or rear droop, screw out the
droop screws on the upper arms. Make sure both sides are
set equally. You can check this by setting the chassis with the
wheels off on a fl at board. Measure from the board to the top
of the axle on each side.
More front droop increases chassis up travel on-throttle,
decreases high-speed steering, and is better on bumpy
tracks. Less front droop decreases chassis up travel on-
throttle, increases high-speed steering, and is better on
smooth tracks.
More rear droop increases chassis up travel off-throttle or
under braking, increases steering in slow corners, and is
better on bumpy tracks. Less rear droop decreases chassis
up travel off-throttle or under braking, increases stability
under braking, and is better on smooth tracks.
Typically you have more droop in the rear than the front. For
smooth, high traction surfaces, less droop overall would be
best. For low traction or bumpy surfaces, more droop overall
would be best.
TOE-IN AND TOE-OUT
TOE-IN
TOE-OUT
Toe-in is when the fronts of the tires point towards each other.
Toe-out is when the fronts of the tires point away from each
other. Toe-in increases stability during acceleration and high
speed. However, toe-in also decreases steering when entering
a corner. Toe-out will increase steering into corners, but will
decrease the overall stability during acceleration. The front
typically is set up with 0° to 1° of toe-in.
CAMBER
Camber refers to the
angle at which the
tire and wheel ride in
relation to the ground
when viewed from the
front or rear. Negative
camber is when the
wheels lean inward and
positive camber is when the wheels lean outward. Usually
adding a small amount of negative camber (0° to -2°) will
increase traction. However, adding too much camber will
decrease traction. The objective is to keep as much of the
tire as possible in contact with the running surface. Never put
in positive camber. Make sure that both sides are equal.
Use the DuraTrax Pit Tech
™
Camber Gauge
(DTXR1145) to accurately set up your
Vendetta TC.
CASTER
The Vendetta ST has adjustable caster. Caster refers to the
vertical angle of suspension. By placing the adjuster clip
behind the fron upper arm, you decrease caster angle. This
will give more initial turn-in but decrease on-power steering
and straight line stability.
Placing the adjuster clips in front of the front upper arm
increases the caster. This will increase on-power steering and
straight line stability, but reduce initial turn-in.
ADJUST TO
CHANGE
THE CAMBER
2˚ NEGATIVE CAMBER
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