Instant center
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Instant center is a term used in automotive suspension designs. It is the theoretical point through which tire motion is transferred into vehicle motion. Knowing a vehicle's instant center is very useful in tuning a car's suspension, particularly in racing. Adjusting the instant center can affect the anit-squat and anti-dive characteristics of the vehicle.
This point can be found by extending two theoretical lines out from each A-arm (or control link) out colinearly. The point at which the two lines intersect in the Instant Center.
