Are the chassis stiffeners (tie bars, top bars, etc.) useful?
In the process of turning, the car body has three stages of deformation: the first is the front end yaw deformation, which affects the sensitivity of steering response; After that, the whole vehicle has a torsion deformation, which has an impact on the linearity of steering; Finally, the yaw deformation of the parking space affects the stability of the control. The local stiffness of the front and rear of the body and the overall torsional stiffness of the body can be improved by installing brackets. Some cars are also designed in this way.
However, it is important to note that the body is mostly sheet parts, so it is best to install something like this tie rod and directly share the bolts with the chassis mounting point, so that the effect of the stiffness is more obvious. Sometimes, welding brackets or punching holes in the sheet metal will not improve the stiffness much. In addition, if the original design has a high stiffness, adding a few more brackets will not improve performance, but add a lot of weight
