1. calculate the total weight of equipment operation: the equipment and the static weight of the counterweight and racing coilovers the safety factor multiplied by the weight after the operation.

2. Select the number of coilovers according to the total weight of the device, if the total weight of more than a ton, six more than the coilovers should be selected in order to increase stability. If the device has too much weight, the damper should not be evenly distributed. Equipment operating weight divided by the number of total coilovers to give each damper load capacity.

3. Select the appropriate damper model based on the calculated load capacity, optimum load close to the optimum load to the principle of a spring damper (coilovers is usually slightly larger than the selected spring damper loads amount to reduce the S13 240SX coilovers fatigue.