Corner Balancing With Proform Digital Scales - Scale Your Car

Moving weight behind the rear axle multiplies the effect. We spoke to an NMCA racer who mentioned that just moving ballast several inches behind the rear axle was sufficient to radically increase the car's tendency to wheelstand. He was able to tune the launch with minor weight repositioning.

Moving weight behind the rear axle multiplies the effect. We spoke to an NMCA racer who me

This was an interesting test because 45 pounds increased the total rear weight distribution percentage from 46.5 percent with the battery in the rear to just over 47 percent. And when the weight was moved to the right side alongside the battery, the right-rear weight jumped to 24.4 percent, which is 44 pounds of additional downforce over the right-rear tire. If we calculate cross weight in this final configuration, the LF/RR comes in at 52 percent, while the RF/LR direction is 48 percent. Increasing the load on the right rear may not be worth carrying the extra weight unless the car has traction problems. Remember that under acceleration, the rear axle attempts to lift the right-rear tire off the pavement. Additional weight on this corner (in addition to the battery) may improve acceleration despite the weight penalty. In addition, there may be handling issues here because the cross weight difference is 140 pounds, which is significant.