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CHECKLIST
SETUP GUIDE
1.
Breaking in the differential:
While holding the chassis with
only
the left side tires firmly on the ground, give the car about one eighth throttle, for 30 seconds. The right
side tires should spin freely during this time. Repeat this with
only
the right side tires held firmly to the ground, allowing the left tires to
spin. Repeat these steps at least two more times.
2.
Check for free suspension movement:
All suspension arms and steering components should move freely. Any binds will cause the car to handle poorly.
3.
Set the ride height:
Set the ride height on your buggy so that the bottom of the chassis is 24mm from the ground in front and 28mm in the rear by adjusting
the shock adjustment nuts, effectively increasing or decreasing pre-load on the springs. See the Setup Guide for additional information on
ride height adjustment.
4.
Set the camber:
Adjusting the camber tie rod length changes the amount of camber. Use the Losi wrench to adjust the tie rods once installed. Rotating the
tie rods towards the front end of the vehicle will shorten the length, increasing negative camber. Rotating the tie rods towards the back
of the car will lengthen them, decreasing negative camber. Set the front tires to have 3 degrees of negative camber and ensure they are
adjusted equally, left to right. Set the rear tires to have 2 degrees of negative camber and ensure they are adjusted equally, left to right.
5.
Set the front toe-in:
Adjust the front steering tie rods so that when the servo is centered on the transmitter, the front tires are both pointing slightly out with
2.5 degrees of toe-out. Refer to the Setup Guide for more information on toe-in/out.
6.
Charge a receiver battery pack:
Charge a battery pack as per the battery manufacturer’s and/or charger manufacturer’s instructions so that radio adjustments can
be made.
7.
Set the transmitter steering trim:
The steering trim tab on the transmitter should be adjusted so the car rolls straight when you are not touching the steering wheel/stick. If
the servo and steering link were installed correctly, the wheels should turn equally to the left and right. If this is not the case, refer to Table
2 and ensure the steering servo and horn were properly installed. Also check the steering link length as noted in Step A-01. Make sure the
throttle trim is set so the brakes are not “dragging” in the neutral position.
8.
Set the transmitter throttle and brake trim:
The throttle trim tab on the transmitter should be adjusted so the brakes are not dragging in the neutral position. The idle adjustment
screw on the carburetor should be set at approximately 1mm open. When the throttle trigger is pulled back to the maximum, the
carburetor is fully opened.
BEFORE RUNNING YOUR NEW 8IGHT 2.0EU BUGGY
run down the following checklist in order and complete the listed tasks. Please note that fine-
tuning of the initial setup is an essential part of building a high-performance buggy, so follow this simple Checklist and the Team Tips to make the first
run with your new buggy much more enjoyable.
Before you start making changes on your 8IGHT 2.0EU Off-Road Racing buggy, you need to make a few decisions. You will find the best adjustment
will become a personal decision based on the “feel” each of these adjustments yield. 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 previous position and try something else. For the latest in setup and accessory
parts information, visit the Losi web site at: www.losi.com regularly. Also note that there are many ways to set up a car. The rules we follow can reverse
sometimes with different driving styles or different setup styles.
Droop:
Always measure the droop of the 8IGHT 2.0EU with the shocks on the buggy. Droop is always measured from the center of the top shock mount to
the center of the bottom shock screw and is usually accomplished with digital calipers for a precise measurement. More droop (travel) in the front has
more on-power steering and allows the buggy to roll more on the rear when on throttle. More droop (travel) in the rear increases off-power steering
and allows the buggy to roll on the front when off throttle. More front and rear droop accelerates better in bumps when going straight, but can cause
the buggy to traction roll in rough turns. Less front and rear droop slides over bumps better in turns and may be better on high-speed and high-
traction tracks. A general setup for shock length is 95mm in the front and 107mm in the rear.
Front Camber Links:
The lower camber link locations on the tower have more camber gain (total camber change through the suspension travel). Running the camber tie
rod in the lower holes increases off-power steering and makes the vehicle more aggressive; however you may lose some consistency. More camber
gain is good on small tight tracks. We find that running less camber gain in the front suits the car the best for consistency and steering balance. On
the 8IGHT 2.0EU we offer a longer camber link on the spindle carrier. A longer front camber link makes the vehicle feel stiffer and this keeps the buggy
flatter with less roll and increases high-speed steering. A short front camber link rolls more and makes the vehicle more aggressive. Too short of a
front link may make the vehicle feel twitchy.
Rear Camber Links:
The 8IGHT 2.0EU has only two vertical rows of camber locations on the rear tower. The stock camber link setup for the 8IGHT 2.0EU is location #2 on
the tower and B in the hub. A longer rear camber link provides less roll and improves stability and traction. A shorter rear camber link has more roll
and increases steering and better handling in the bumps. By raising the inner camber link up you increase the roll stiffness of the vehicle. This can
make the vehicle easier to drive but may reduce corner speed and hurt bump absorption. Running “A” in the rear hub generates more corner rotation
entering the turn, but decreases steering on exit. Running “B” in the hub is more stable entering the turn and increases steering on exit.
Kingpin Inclination:
The 8IGHT 2.0EU is equipped with king pin inclination. We find that on high-speed tracks the king pin inclination provides an increase of precision
steering while keeping the front of the car flatter. This has shown to improve handling in rough portions of the track. The 8IGHT 2.0EU is equipped
with 12-degree Spindle Carriers, however 10-degree Spindle Carriers (LOSA1728) are offered as an option part. Less caster ultimately has less off-
power steering but improves on-power steering.
Camber:
More negative camber in the front has more steering and is more responsive. Less negative camber in the front has less steering and is smoother.
More negative camber in the rear has less rear traction, but increases on-power steering and is less grabby in bumps. Less negative camber in the rear
has more rear traction and makes the rear of the buggy stay flatter, but if traction is lost it is more violent. To ensure your 8IGHT 2.0EU has the correct
camber we recommend using our Losi Camber Gauge (LOSA99172).
Front
Rear
Steering/Responsiveness
–
+
3 ° Negative Camber
5 ° Negative Camber
1 ° Negative Camber
Less Traction/More On-Power Steering
More Rear Traction/Rear of Vehicle Stays Flatter
–
+
3 ° Negative Camber
5 ° Negative Camber
1 ° Negative Camber
