Originally Posted by
Epstein
It's called a Speedway bar, after Speedway Engineering who make components. More of a trade name, really. Designing and building a swaybar isn't a exactly rocket science. The car already has a Progress bar on it. You'll know whether you want more or less roll resistance from there. Plus, the Progress bars actual figures are known. I don't see where the debate about this is.
Ah, with the correct name you can find pretty good tables giving you numbers to compare your progress bar with. No need to calculate, someone did it for you.

sweet!
Speedway Engineering's Sway Bar Rates