24
:: Battery Stop, Final Build - Bag 9 - Step 3
91148
M4 flanged
locknut,
knurled
1736
FT body
clips
x4
x4
:: Tuning Tips
Tips for Beginners:
Before making any changes to the standard setup, make sure you can get around the track without crashing. Changes to your car
will not be beneficial if you can’t stay on the track. Your goal is consistent laps.
Once you can get around the track consistently, start tuning your car. Make only ONE adjustment at a time, testing it before making
another change. If the result of your adjustment is a faster lap, mark the change on the included setup sheet (make additional
copies of the sheet before writing on it). If your adjustment results in a slower lap, revert back to the previous setup and try another
change. When you are satisfied with your car, fill in the setup sheet thoroughly. Use this as a guide for future racing.
Ride Height:
The standard starting point for ride height is 5.0mm (your local track may have minimum ride height requirements). You can slightly
raise the rear relative to the front to give the car more steering. Raise the car slightly for tracks with large bumps.
Wheelbase:
Lengthening the front will reduce steering, shortening the front will increase steering.
Shortening the rear will increase rear grip, lengthening the rear will decrease rear traction.
Rear Toe-In:
Standard rear toe-in angle for inner hinge pin when using same insert front and rear
is 3°. Standard insert used is 1 dot. Rear toe-in can be adjusted by 0.6° increments at
the inner hinge pin with supplied arm mount inserts (see chart to right).
Ackermann:
Ackermann refers to the relative angle difference
between the front wheels as they are turned to steer
the car. The outside wheel will turn less than the inside
wheel in most conditions. Settings with more
Ackermann will have a bigger difference in wheel
angle, causing the outside wheel to turn less. Likewise,
settings with less Ackermann will cause the outside
wheel to turn more.
Increasing the Ackermann will smooth out the steering
and is used most often on high traction surfaces such
as carpet. This is a result of the reduced outside wheel
angle. Settings with reduced Ackermann will help to
increase corner entry steering, and are typically used
when running a spool in the front.
The chart to the right lists the different Ackermann
options.
STD
More A
ckermann
Less A
ckermann
Steering
Block
Position
Steering
Rack
Shims
B
B
B
A
A
A
1mm
2mm
0mm
1mm
0mm
2mm
Arm Mount Inserts
Negative to the inside of vehicle.
Positive to the outside of vehicle.
1
DOT
0
°
-2
DOT
-0.6
°
+2
DOT
+0.6
°
-1.2
°
-3
DOT
+3
DOT
+1.2
°
0.5mm
!
Use these shims to adjust
the battery lock top height
for 0.5mm clearance
above the battery.
Steering Block
Steering Rack
A
B
