How to race cars?

On race-cars and/or production cars, how do engineers account for the change in roll motion ratio of a sway bar when the suspension encounters a bump?

• Technical question here. As the suspension is "hit" into a compression or droop state, the linkage point of the anti-roll bar is changed. During a transient maneuver (accelerating or braking while cornering), this could potentially change the roll motion ratio and thus the roll stiffness of the car. If the vehicle hits a bump, it could be a quick and rather drastic change in roll stiffness. How does a car respond to this? Do normal cars exhibit this, or is there a geometric "trick" to limiting or mitigating this? Any famous examples? I'm concerned because at FSAE Lincoln, where we're competing this year, the track is basically an old airport constructed of concrete slabs - there are a lot of mid-corner bumps. Any thoughts?

• Answer:

  Sorry it's been years since I did FSAE and never did dynamic testing at the OEM level. But what I do remember from my time is that sway bars with/without were tested in CAE for rigidity and torsional stiffness. Encountering bumps never came up in the presentations I saw (end results).