Originally Posted by NITTO550
Ok I have a question. On the steering knuckle there is that carbon fiber piece which has 2 mounting holes for the steering rod. One position is forward the other is back . What is this for,?
To set up Ackermann
Ackermann controls the difference in steering arcs between the front inside and outside wheels. The inside wheel always has a tighter arc in any corner. The amount of grip provided by the tires, in relation to the steering arc and speed of the car, create an amount of measurement called a slip angle for each wheel.
For some tires you need a greater difference in slip angles between the inner and outer wheel and for some you need less.
The angle of the steering rods can be changed by moving the steering rods inner mount position on the servo saver, or outer mount position on the steering blocks.
1. Inner Ackermann Position (servo saver) Changing the forward/rearward position of the servo saver has the greatest Ackermann effect
Position #1 (forward) less Ackermann effect (steering rods more angled)
Position #2 (rearward) the greatest Ackermann effect (steering rods straighter)
2. Outer Ackermann Position (steering blocks) Changing positions on the steering blocks is used to fine tune the Ackermann effect
Position #1 (forward) more Ackermann effect (steering rods straighter)
Position #2 (rearward) less Ackermann effect (steering rods more angled)
NOTE: It is recommended to use more Ackermann effect in low-to-medium grip conditions and less Ackermann effect in medium-to-high grip conditions.