Anti-Geometry

Anti-Geometry is suspension geometry that is intended to reduce the dive or squat of the car. Anti-geometry includes anti-dive and anti-squat (as well as anti-lift which will not be covered as it is not applicable). Wheel loading remains the same regardless of anti-geometry because the total longitudinal load transfer under acceleration or braking is a function of wheelbase, forces and center of gravity height. Anti-geometry changes amount of load going through the springs and the pitch of the car. Thus, it is largely used for aero benefits.

Swing Arms

To determine anti-geometry, a side view swing arm must be generated. Draw a line from the 2 mounting points of each front control arm rearward until they touch. Then, draw a line from the 2 mounting points of each rear control arm forwards until they touch. These 2 points are called instant centers. From each instant center, draw a line to its respective wheel's contact patch.