When setting up a car for road racing, corner balancing is an important aspect of preparation. So, you’ve installed coilovers on your car, set a rough ride height, reinstalled the wheels and tires, and set it back on the ground to see if any further adjustments need to be made. Sure, the car sits how you want it to, but is the weight of the vehicle evenly distributed throughout all four corners of the car? Probably not. Changing the weight distribution of the car affects how it behaves when cornering, which can be a good or a bad thing.
Corner balancing is the process of managing the car’s weight on each of the tires to maximize grip; rear for traction, front for braking, left/right for cornering. Having the corner weights close at static, makes this function a little easier. Having said that, the higher level of performance and skill set of the driver and the closer to the car’s maximum, the more important corner-weights become. Although some weight can be shifted between corners by physically relocating parts of the car, the corner balance process is focused on shifting weight by adjusting the suspension ride height.
Any relocation of parts should be performed before corner balancing begins.
A common analogy for corner balancing is a basic four-legged table. In order to distribute weight evenly, all four legs have to be the same length, but if one leg is shorter than the rest, the whole table becomes unbalanced and wobbly. A car’s wheels function in very much the same way.