Team Associated TC6.2 - Manual (Page 27)

:: Tuning Tips
Camber Link Position:
The camber link is used to set static camber at ride height, but it is also an effective setting to adjust roll center height and camber
gain. The TC6.2 has three optimized length positions at the front, and six at the rear, for a wide range of camber gain adjustments.
All camber link mounting positions use vertical ballstuds that can be shimmed for precise roll center height adjustments.
Longer links will produce less camber gain, stiffening that particular end of the car in roll. These are particularly effective on large
tracks with big sweeping corners. Shorter links will give more camber gain, softening that end of the car in roll. This will make the
car more aggressive, and is a good setting for smaller indoor tracks with high grip levels.
The angle of the camber link will make fine adjustments to the roll center height. Typically the camber link will be no more than
parallel to the suspension arm with the inboard side of the link lower than the outboard side. As the inboard side of the camber link
is moved down, the roll center goes up, stiffening that end of the car. Camber link angle is a good adjustment to help fine tune the
balance of the car to the track by setting the front and rear at slightly different angles.
Caster:
Caster describes the angle of the kingpin from vertical while looking from the side of the car. Positive caster means the top of the
kingpin leans rearward. Negative caster means the kingpin is leaning towards the front of the car. Since caster is measured at the
wheel, it is affected by running any inclination in your inner arm mount. Kick-up adds (+) caster, and anti-dive adds (-) caster.
When figuring out your caster at the wheel, add the number of degrees of kick-up or anti-dive and add it to the degree caster blocks
you have on the car.
Typically for most racing surfaces, 4 degrees caster is the normal starting point for the Team. From there, increase caster to reduce
mid to exit steering and make the front end less responsive. Conversely, decreased caster gives a more responsive feel and more exit
steering.
Arm Mount Position:
The TC6.2’s arm mount system allows for maximum adjustability for all track and racing conditions. Independent inner and outer arm mounts
with interchangeable inserts provide multiple pin configurations... flat, or with angle, to give a host of kickup/tow and pin width options.
Use the TC6.2’s included arm mount inserts to adjust pin width and angle. The arm
mount inserts are indicated one, two, and three with the corresponding amount of dots
on their exposed face. Each insert will index the hinge pin by 1/2 degree (or 0.43mm).
Standard pin angle is achieved when using the same insert in both the inner and outer
mounts. Rear hinge pin angle is 3° when using the same insert in both inner and outer
mounts.
The chart to the right shows the pin angle change for the right rear pin when using
a 1 dot insert in the inner arm mount.
Pin width can also be adjusted by changing the inserts in the inner and outer mounts
by an equal amount. The standard pin width for the TC6.2 uses 1 dot inserts at all
corners, and is best suited for rubber tire racing.
The TC6.2’s independent inner and outer arm mount system also allows for roll center
height adjustements as well as options for anti-dive/kick-up and anti-squat/pro-squat
hinge pin angles. Precise adjustments can be made by changing the shim thickness
between the arm mounts and chassis.
The standard roll center height uses o.5mm shims on all mounts. This produces a
relatively low roll center with more chassis roll on the corners... typically good for lower
grip conditions such as rubber tires on asphalt. If the grip level is high, try raising the
roll center by using thicker shims between the mounts and chassis.
Anti-dive/kick-up and anti-squat/pro-squat angles can be adjusted by varying the
amount of shims under the inner and outer mounts. A 0.5mm difference will produce
an angle of about 1/2 degree. The following sections briefly describe front and rear
pin angles and their effect on the track.
27
Droop:
The standard settings of 6mm front and 5mm
rear will work best in most cases. Droop is
measured just underneath the outer hinge pin
as shown in the photos to the right.
On bumpy or low grip surfaces, increase the
droop (going to a lower number on the droop
gauge), this will help increase traction and
consistency.
Droop adjustments of 0.5mm to 1mm can be
very effective on the track!
Front Droop
Setting: 6mm
1 0
2 3 4 5
6 7 8
Rear Droop
Setting: 5mm
1 0
2 3 4 5
6 7 8
Increase Increase Decrease Decrease
Arm Mount Inserts
Negative to the inside of vehicle.
Positive to the outside of vehicle.
1 DOT
0 °
-2 DOT
-1/2 °
+2 DOT
+1/2 ° -1 °
-3 DOT +3 DOT
+1 °
1
2
3 4
ABC