User guide

35
SETUP GUIDE
TIPS AND HINTS FROM THE TEAM
Before you start making changes on your 8IGHT-T 2.0 O-Road Racing truck, you need to make a few decisions. First of all, tires, and how they are
setup, have a tremendous impact on overall performance. Before you start making changes on the chassis setup, take a moment to observe a few of
the fastest cars at the track and what type of tire and inner liner they are running. You will nd the best adjustment will become a personal decision
based on the “feel” that 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. Team Losi Racing development team has put hundreds of hours on
the 8IGHT-T 2.0 to arrive at the setup we put in the instruction manual. If you nd that you have lost the “handle” go back to the vehicle (stock) setup,
as this setup has proven to be reliable, consistent and easy to drive. All of us at Losi are sure that you will nd the 8IGHT-T 2.0 O-Road Racing truck to
be the most versatile and easiest truck to drive fast, with great consistency. We hope the information in the following guide helps you to enjoy your
8IGHT-T 2.0, and racing it, as much as we do. For the latest in setup and accessory parts information, visit the Losi web site at: www.losi.com regularly.
Please check the Losi web site periodically to nd out new setup information as we are always testing on all types of tracks and surfaces. Also note
that there are many ways to set up a truck. The rules we follow can reverse sometimes with dierent driving styles or dierent setup styles, so test for
yourself and you will nd a setup that works right for you.
Tuning the Engine:
Should be done following the manufacturer's instructions. Turning the needle valve clockwise, the fuel mixture will become leaner – meaning that
the engine will draw less fuel. When the needle valve is turned counterclockwise, the fuel mixture becomes richer, meaning that, the engine will draw
more fuel. The high-speed needle aects the fuel mixture at fuel throttle while the low-speed needle only aects the fuel mixture at idle and the low
end of the throttle band. Our recommended engine and pipe combo for your Team Losi Racing 8IGHT-T 2.0 is the GRP Mario Rossi tuned .21 engine
and GRP 2053 Pipe or for even great power GRP Mario Rossi tuned 28 engine and GRP 2053 pipe.
To Shut Off the Engine:
Simply use the included pipe plug or simply bump the ywheel with a wrench or plastic handled tool. Losi also makes a tuning driver with a built-in
plug for the pipe (LOSA99167).
The Receiver Battery:
The receiver battery is an important, frequently overlooked part of gas-powered vehicles. A low receiver battery can cause the vehicle to have a mind
of its own. The result can be a runaway vehicle or a poorly responding radio system. The length of time that a receiver battery pack’s charge lasts
depends on the type of servos that are used. If you will be using an NiCd or NiMH receiver pack, it is recommended that a minimum battery size of
1100mAh and minimum voltage of 5.4 volts be used. Recommended batteries that are oered by Losi are LOSB9950 6V 1100mAh NiMH Receiver Pack
or LOSB9820 7.4V 2000mAh 2C LiPo Receiver Pack. Please note that a voltage regulator will be needed if you choose to use a Lithium Polymer (LiPo)
receiver pack. Losi oers voltage regulators with a switch, LOSB9608 and without a switch, LOSB9609.
Droop:
Always measure the droop of the 8IGHT-T 2.0 with the shocks on the truck. Droop is measured with dial or digital calipers from the center of the shock
mount to the center of the shock screw. More droop (travel) in the front will have more on-power steering and allow the truck to roll more on the rear
when on throttle. More droop (travel) in the rear will increase o-power steering and allow the truck to roll on the front when o throttle. More front
and rear droop will accelerate better in bumps when going straight, but can cause the truck to traction roll in rough turns. Less front and rear droop
will slide over bumps better in turns and may be better on high-speed and high-traction tracks.
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 will increase o-power steering and make the vehicle more aggressive; however, you may lose some consistency. More camber
gain is good on small tight tracks. We have found that running less camber gain in the front suits the truck the best for consistency and steering
balance.
Rear Camber Links:
The 8IGHT-T 2.0 now has only two camber locations on the rear tower, however, we have added another inside hole on the rear hub. The stock camber
link setup for the 8IGHT-T 2.0 is location #1 on the tower and B in the hub. By using the #2 hole on the tower you will have less roll and improve
stabilityandtraction.Usingthe#1holewillhavemoresteering.Running“A”intherearhubwillgeneratemorecornerrotationenteringtheturn,but
decrease steering on exit. Running “B” in the hub will be more stable entering the turn and increase steering on exit.
Pistons:
Generally smaller hole pistons, #56, have stier damping, slower weight transfer, slower response, and will land large jumps better. Larger hole
pistons, #54, have softer damping, increased traction, quicker weight transfer/response, and bottom out easier o large jumps.
Shock Oil:
Lighter shock oil has more overall traction and responds quicker. Thicker oil has less overall traction and reacts slower. On high bite/smooth tracks,
thicker oil is easier to drive. Make sure you adjust oil when there is a drastic temperature change (20-25 degrees). If it gets cold outside you need to go
to lighter shock oil. If it gets hotter outside you need to go to thicker weight shock oil.
Front Toe:
You never want to run toe-in on the front of the 8IGHT-T 2.0. Less front toe-out (longer steering rods) decreases steering response entering and in the
middle of the turn but will increase on power steering. More toe-out (shorter steering rods) increases steering response when entering the turn and
increases straight line stability, however, it will decrease on power steering.
Rear Toe-in:
The 8IGHT-T 2.0 is equipped with 3.5 degrees of toe-in per side. Less rear toe-in will increase the wheel base of the truck and decrease forward
traction, but will increase top speed and side traction in the middle of a turn. More toe-in will increase forward traction, have more o-power steering
and less side traction.
Wheel Base: