Sway Bars
Most SL-Cs don't have sway bars, but I’m installing cockpit-adjustable ones. The driver makes adjustments by moving a lever, one for the front and one for the rear, which rotates a "blade arm" 90 degrees from vertical to horizontal. The firmest setting is when the blade arm is vertical (i.e., on edge) and the softest setting is when the blade is horizontal (i.e., flat). I decided to replace the manual levers with linear actuators. The primary reason for this is that while the levers look cool in a race car, they don't fit with the super-car-like interior I'm trying to achieve. In addition, the levers have only five fixed positions whereas the actuators allow an infinite number of positions. Lastly, since the actuators I'm using have position feedback, I can add presets (e.g., Low Grip, Sport, Track, Race, Solo).
One end of each sway bar has a barrel with TBD bearing(s) held in place with a snap ring. A crank plate is attached to the back of the blade arm which is attached to the cable via a ball joint.
| Qty. | Part Number | Description | Unit Price | Ext. Price |
|---|---|---|---|---|
| 1 | n/a | Agile Automotive Cockput Adjustable Front and Reat Sway Bars | $4,271.28 | $4,271.28 |
| 1 | n/a | Agile Automotive End Link Kit | $440.20 | $440.20 |
| 2 | GEN-GC1057 | Genesis Technologies Pillow Block, 1" ID | $42.99 | $85.98 |
| Screw | $0.00 | |||
| Nyloc | $0.00 | |||
| Total | $4,797.46 |
OLD
Stroke Min Max
Sensor 2.95" 8.58" 11.54"
Actuator 2.50” 10.37” 12.87”
Delta +0.45” -1.79” -1.33”
Mount 2.5” 10.595
Sensor has 0.45” more stroke so we want min length to be half that amount (0.225”) shorter to put position in the middle. Sensor is 1.79” shorter so we want to make bracket span 1.79 - 0.225 = 1.565 shorter. Split that in two to get the offset of .783.
NEW
Stroke Min Max
Sensor 2.95" 8.58" 11.54"
Actuator 2.75” 10.62” 13.37”
Delta +0.20” -2.04” -1.16”
Mount 2.5” 10.595
The sensor has 0.20” more stroke than the actuator so we want min length to be half that amount (0.10”) shorter to position it in the middle of the range. Distance when contracted:
Sensor: 8.58” + 0.10” = 8.68”
Top Plate Offset: 10.62” - 8.68” - 1.58” = 0.36”
Notes:
Sway bar blades are 3/8”-24
Linear Actuator and Control Chain
| Qty. | Part Number | Description | Unit Price | Ext. Price |
|---|---|---|---|---|
| 1 | PA-06-2-180 | Progressive Automations Linear Actuator Stroke 2.5", Force 180 lbs, Speed 0.47"/sec, 12 VDC | $269.99 | $269.99 |
| 1 | MC-206-75MM | AiM Linear Travel Potentiometer, 75mm (2.95") Stroke | $254.99 | $254.99 |
| 2 | GEN-GC1069 | Genesis Techonogies Quick disconnect 10-32 Control Cable Ball Joint | $7.15 | $14.30 |
| 2 | GEN-GC1068 | Genesis Technologies 10-32 Control Cable Chrome Ball Joint | $7.15 | $14.30 |
| Total | $553.58 |
Notes
Split lock collar
Quick disconnect ball joint
Bearing Barrel — CNC machined from 4130
Ball bearing
Caged needle bearing
Snap ring
Crank plate
10-32 push/pull cable
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