In the hunt for optimal performance at the race track, we’ve seen competitors go to great lengths to find an advantage. One of the tricks that HKS used with their TRB-03 Toyota 86 race car was to make some drastic changes to the factory suspension design. In stock form, the ZN6 chassis uses a fairly conventional MacPherson strut front suspension, with a multi-link setup in the rear.
HKS have modified the chassis to accept a double wishbone suspension design front and rear. Double wishbone suspension provides the engineers with a lot of flexibility to control aspects such as the roll centre location, as well as the camber curve as the suspension moves through its travel. At the rear of the car, the double wishbone suspension provides the ability to run a much cleaner tunnel aerodynamically under the car, which is essential to the down force these cars produce.
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