Losi XXX-S Sport - Manual (Page 34)

FINAL CHECKLIST
BEFORE RUNNING YOUR NEW XXX-S SEDAN for the first time, you should run down the following checklist - in order -
and complete the listed tasks. I'm sure you're anxious to get out and run your new XXX-S Graphite Plus now that it's built, but
following this simple checklist will help to make your first run with your new car much more enjoyable.
1. Adjust the differential
While holding the chassis with only the left side tires firmly
on the ground give the car about a quarter throttle for ten
seconds. The right side tires should spin freely during this
time. Repeat this with the right side tires held firmly to the
ground allowing the left tires to spin. Feel the diff action
and tighten slightly if necessary.
2. Check for free suspension movement
All suspension arms should move freely. Any binds will
cause the car to handle poorly. The steering should also
operate very freely.
3. Set the ride height
Adjust the chassis ride height to 5mm. See the tips sec-
tion for additional information on this.
4. Set the camber
Both front and rear tires should have 1 degree of nega-
tive camber (Top of the tire leans in). It is critical that
both front tires and both rear tires be adjusted the same.
5. Set the front toe-in
Adjust the front tie rods so that, when the steering is straight
on the transmitter, the front tires are both pointing straight.
It is recommended that you start with the front toe-in set
to zero (no toe-in or toe-out).
6. Charge a battery pack
Charge a battery pack as per battery manufacturer's and/
or charger manufacturer's instructions so that
radio adjustments can be made. Never plug the battery
backwards into the speed control.
7. Adjust the speed control
Following the manufacturer's instructions, adjust your
speed control, and set the throttle trim on your ESC so
the the car does not creep forward when not applying
throttle. Make sure that there is not too much brake being
applied when the trigger/stick is in the neutral position.
Some speed controls have a high/low setting for the
throttle.
8. Set transmitter steering trim
The steering trim tab on the transmitter should be ad-
justed so that the car rolls straight when you are not touch-
ing the steering wheel/stick. If the servo was installed
correctly, as per Tables 21A and 21B, the wheels should
turn equally to the left and right. If this is not the case,
refer to Table 21B and ensure that the steering servo and
rod were properly installed. Make sure the throttle trim is
set so that the motor does not run when in the neutral
position. You may wish to run one "click" of brake to be
safe.
TIPS AND HINTS FROM THE TEAM
Before you start making changes on your XXX-S Sedan you need to make a few decisions. Tires and how they are set-up have
a tremendous impact on overall performance. Before you start making changes on the chassis take a moment to observe a few
of the fastest cars and what type of tire and inner liner they are running. Also note the wheel diameter and width as this can also
effect how the tires perform. When making chassis changes you should first decide where you feel the car needs to be different.
This is commonly referred to as changing the "balance". Since the XXX-S is a four-wheel drive chassis you have two ends of the
car working separately yet together. First decide if the front of the car needs to be adjusted or the back. You will want to work with
the rear if the car enters the turn with the front end sticking and tracking well while the rear end either does not want to follow or
simply doesn't know what it wants to do. The opposite is true if the rear end seems to want to push the front end through the
corners or the front dives into the corner uncontrollably. You will notice that several different adjustments have similar effects on
the handling as well. You will find the best adjustment will become a personal decision based on the "feel" that each of these
adjustments yield. This also reflects on the "balance" we referred to earlier. Never make more than one change at a time. If the
change you made works adversely or doesn't address your need return to the stock position and try something else. Team Losi's
development team has put hundreds of hours on the XXX-S to arrive at the set-up we put in the instruction manual. If you find that
you have lost the "handle" go back to the kit (stock) set-up as this has proven to be reliable, consistant, and easy to drive.
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