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The model's ride height can be adjusted by adding or removing the
clip-on, spring preload spacers. Adjust the ride height so that the
suspension arms are slightly above being parallel to the ground.
Observe how the model handles in turns. Proper setup will add
stability and help prevent spin outs. Experiment with different
springs and shock oils to find what works best for your current track
conditions.
Centering Your Servo
If you have removed the servo horn from your model's steering servo,
or the servo has been removed for service or cleaning, the servo must
be re-centered prior to installation of the servo horn or installation of
the servo in the model.
1. Remove the servo horn from the steering servo.
2. Connect the steering servo to channel 1 on the receiver. Connect
the electronic speed control (ESC) to channel 2. The white wire on
the servo lead is positioned toward the receiver's LED.
3. Turn the transmitter power switch on. Make certain the
transmitter's batteries are not depleted.
4. Turn the transmitter's steering trim knob to the center "0" position.
5. Disconnect motor wires "A" and "C" (see page 12) to prevent the
motor from turning during the next steps. Connect a fresh battery
pack to the speed control and turn on the ESC (see page 18). The
servo's output shaft will automatically jump to its center position.
6. Install the servo horn onto the servo output shaft. The servo horn
should face toward the center of the chassis and be perpendicular
to the servo body.
7. Check servo operation by turning the steering wheel back and
forth to ensure that the mechanism has been centered properly
and you have equal throw in both directions. Use the transmitter's
steering trim knob to fine-tune the position of the servo horn so
the model tracks straight when the steering wheel is at neutral.
Motors and Gearing
There are two different types of motors that can be purchased
for your model, brushed and brushless. Brushed motors are the
standard and offer good power inexpensively. They use metallic
brushes to send electrical power to the commutator inside the
motor. A brushless motor eliminates the brush-to-commutator
contact points, along with its heat and wear. Because of this,
brushless motors offer more speed, and are more efficient and
do not require the same amount of maintenance, but are more
expensive and require a special electronic speed control (ESC). When
going brushless, differential gears, parts #5379 and #6879, can be
used for maximum durability.
ADJUSTING YOUR MODEL
One of the more significant advantages to your model's transmission
is the extremely wide range of available gear ratios. It can be geared
low enough to run extremely hot, modified motors. Modified
motors should be geared lower (higher numerically) than stock
motors because they reach their maximum power at higher RPM's.
A modified motor that is geared incorrectly can actually be slower
than a correctly-geared, stock motor. Use the following formula to
calculate the overall ratio for combinations not listed on the gear
chart:
# Spur Gear Teeth
x 3.92 = Final Gear Ratio
# Pinion Gear Teeth
If you are worried that you might be over-geared, check the
temperature of the battery pack and motor. If the battery is extremely
hot, and/or the motor is too hot to touch, your model is probably
over-geared. If you are not able to run your model for at least four
minutes before the battery dies, then change to a lower gear ratio.
This temperature test assumes that the model is close to factory stock
weight and operates freely with no excessive friction, dragging, or
binding, and the battery is fully charged and in good condition.
The model is equipped with a Titan 12T motor. The gear
combination that comes stock on each model provides good overall
acceleration and top speed. If you want more top speed and less
acceleration, install the optional high-speed gearing (more teeth;
sold separately). The optional high-speed gearing is intended for
high-speed running on hard surfaces, and is not recommended for
off-road or repetitive starting and stopping.
The Titan 12T is equipped with an integrated cooling fan that is
effective during medium to high-speed operation. The gearbox is
specially vented to cool the motor. Repetitive starting and stopping
over short distances creates excess heat and will not allow the fan to
cool the motor properly. For this type of driving, smaller pinion gears
are recommended to reduce load on the motor.
Gearing Compatibility Chart:
The chart below shows
recommended gear combination
ranges for your model.
Spur Gear
50
52
54
9
21.76
22.63
23.50
10
19.58
20.37
21.15
11
-
-
19.23
12
-
-
-
13
-
-
-
Out of Box Setup, recommended for
most running, 6- or 7-cell NiMH, 2s LiPo
Usable gearing range for 6- or 7-cell
NiMH, 2s LiPo
Does not fit
SLASH 4X4 • 25
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