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Contact Traxxas for assistance: 1-888-TRAXXAS. 972-613-3300 (outside USA). E-Mail us at support@traxxas.com
• SHOCKS
The four shocks on Street Sport greatly influence its handling.
Whenever you rebuild your shocks, or make any changes to the
pistons, springs or oil, always do it carefully and in pairs (front or
rear). Piston head selection depends on the range of oil viscosi-
ties that you have available. For example, using a two-hole piston
with a lightweight oil will, at one point, give you the same damp-
ening as a three-hole piston with heavier oil. We recommend
using the two-hole pistons with a range of oil viscosities from
10W to 50W (available from your hobby shop). The thinner vis-
cosity oils (30W or less) flow more smoothly and are more con-
sistent, while thicker oils provide more dampening. Use only
100% pure silicone shock oil to prolong seal life.
The ride height for Street Sport can be adjusted by adding or
removing the clip-on spring pre-load spacers. Adjust the ride
height so that the suspension arms are slightly above being par-
allel to the ground. Observe how Street Sport handles in turns.
Proper set-up will add stability and help prevent spin outs.
Experiment with different settings to find out what works on your
track and conditions.
• GEAR RATIOS
Street Sport will allow you to adjust the gearing over a broad
range. Use the following formula to calculate the overall ratio:
# SPUR GEAR TEETH = FINAL DRIVE RATIO
# PINION GEAR TEETH
Street Sport is equipped with a 100-tooth spur gear and an 18-
tooth pinion gear. This combination will provide good overall
acceleration and top speed. If you want more acceleration and
less top speed, use a smaller pinion gear (fewer teeth). For more
top speed, use a larger pinion gear
• BALL DIFFERENTIAL
The ball differential can be adjusted by removing the rubber cap
from the top of the gearbox and inserting the 1.5mm allen wrench
(provided) through the hole. Push down on the wrench and rotate
the left wheel until the wrench locks into the hole in the differential
housing. Continue to push on the wrench and rotate the wheel
until the wrench is fully inserted into the transmission (see figure
A-3). This locks the diff. Now, turn the right rear wheel clockwise
to tighten the diff, or counterclockwise to loosen it (see figure A-4).
The preliminary setting for the ball diff is to tighten it until it
stops and then back it off 1/4 of a turn.
The range of adjust-
ment from that point is plus or minus 1/8 of a turn. Adjust the Ball
diff for the best cornering performance on your track conditions.
Do not run the ball differential so loose that you can see and hear
it slipping while the Street Sport is accelerating. This could dam-
age your differential.
• CENTERING THE SERVOS
With the radio components out of the model, connect the
steering servo to “channel 1” on the receiver. Connect speed
control to “channel 2.”
Place fresh “AA” batteries in the transmitter and turn the power
switch on. Turn the throttle and steering trim adjustments on the
transmitter to the center “0” position. Plug a freshly-charged battery
pack into the speed control. The servos will jump to their center
position. Now, unplug the battery pack and turn off the transmit-
ter. Be careful not to move the servo shafts when installing the
servos into your model.
MAINTENANCE
• CHASSIS:
Keep the chassis clean of accumulated dirt and
grime. Periodically inspect the chassis for damage
• STEERING:
Over time, you may notice increased looseness in
the steering system. There are several components which will
wear out from use: the servo saver (Traxxas part#4244), and
the tie rod ends (Traxxas part #2742). Replace these compo-
nents as needed to restore factory tolerances.
• MOTOR:
Every 10-15 runs, remove, clean, and lubricate the
motor. Use a product such as electric motor cleaning spray to
flush dirt out of the motor. After cleaning, lubricate the bushings
at each end of the motor with a drop of lightweight electric
motor oil.
• SHOCKS:
Keep the oil level in the shocks full. Use only 100%
pure silicon shock oil to prolong the life of the seals. If you are
experiencing leakage around the top of the shock, inspect the
bladder in the top cap for signs of damage or distortion from
overtightening. If the bottom of the shock is leaking, then it is
time for a rebuild. The Traxxas rebuild kit for two shocks is
part#2362.
• SUSPENSION:
Periodically inspect the car for signs of damage
such as bent or dirty suspension pins, bent turnbuckles, loose
screws, and any signs of stress or bending. Replace compo-
nents as needed.
• DRIVELINE:
Inspect the driveline for signs of wear such as
worn drive yokes, dirty axle half shafts, and any unusual noise
or binding. If a U-joint pops apart then it is time to replace the
part. Remove the gear cover and Inspect the spur gear for
wear and check the tightness of grub screw in the pinion gear.
Tighten, clean, or replace components as needed.
Figure A-4
Figure A-3
PINION GEAR
SPUR
7.14 6.65 6.25 5.88 5.55 5.26 5 4.76 4.54 4.34 4.16 4 3.84 3.70 3.57
100
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