One of the refitting projects of the automobile chassis is called the anti roll bar. The hardness of the anti roll bar is determined by the manufacturing material, the rod body, the rod diameter, the length of the rod arm and the angle with the rod body. The longer the rod body is, the lower the hardness will be. The longer the rod arm is, the higher the hardness will be. Due to the limitation of the vehicle width, the length of the rod body is not easy to change when the vehicle is refitted, but the rod diameter and the length of the rod arm are relatively easy to adjust.

The materials of the anti roll bar used for automobile refitting on the market are similar, so if you want to change the hardness of the anti roll bar, you need to change the rod diameter first to achieve the purpose. In addition, replacing the rubber pad for fixing the anti roll bar with a hard material will have different effects. In the actual test, the effect of using a 0.8-inch-diameter anti roll bar with a hard pad is the same as that of using a 1.0-inch-diameter anti roll bar with a rubber pad.

The function of anti roll bar is mostly reflected in turning, because roll may occur during rapid turning. The best way to understand the degree of roll is to take photos of extreme turning with the camera, and then measure the roll angle on the photos. Then, after replacing the hard anti roll bar, take it again in the same way, and compare the angles of the two turns to judge the difference. To calculate the required hardness of the anti roll bar, we should not only consider its own hardness, but also consider the matching with the chassis spring. Therefore, only continuous testing is the best choice for your car to refit the chassis.

Then let's talk about the reinforcement of the chassis. Firstly, the chassis reinforcement is composed of front and rear chin, well frame, rear top bar, middle structural rod and rear safety top rod.

The front and rear chin and well frame are installed at the connecting parts between the front and rear axles and the frame chassis. The main function is to strengthen the connection strength between the front bottom beam and the chassis, strengthen the overall rigidity of the frame chassis, reduce the centrifugal force, and inhibit the displacement and deformation of the chassis caused by the body distortion, which can improve the performance during bending. The rear top bar is installed on the top of the rear shock absorber tower. The main function is to enhance the strength of the trunk, reduce the lateral distortion caused by the centrifugal force at the rear of the carriage, reduce the roll of the rear of the vehicle when turning, and improve the performance of the vehicle when turning. The intermediate structural rod is installed at the left and right chassis in the middle of the vehicle chassis, which is mainly used to improve the overall rigidity of the vehicle chassis. The rear safety top pull rod is installed at the left and right sides of the safety belt at the rear of the vehicle. It is used to strengthen the overall rigidity of the body and the stability of turning.