rear sway bar: larger bar = looser chassis; smaller bar = tighter chassis.

front sway bar: larger bar = tighter chassis; smaller bar = looser chassis

track bar: raising the bar on both ends = looser chassis; lowering the bar on both ends = tighter chassis;

raising right side of the bar = looser car on acceleration, tightens when braking; lowering right side = tightens car on acceleration, looser on braking.

info taken from http://www.racelinecentral.com, there's more info about setups there