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ACKERMAN EFFECT:
Ackerman is the difference in turn radius between the front tires. On oval-track cars, it can be desirable to create a
situation where the left front tire turns faster than the right front tire. The Ackerman effect can help the car turn better
through the center of the turn. You can measure the amount of Ackerman you currently have by using a set of turn
plates. Typically, Ackerman is measured by turning the right front tire 10 degrees to the left. If you have Ackerman, the
left front will travel further than the right front. A typical amount would be three degrees in 10 degrees of steering. To
simplify, moving the right front from zero through 10 degrees of steering will cause the left front to move 13 degrees in
this scenario.
Ackerman is created by your front end geometry. Tie rods that angle forward from the inner pivot point out to the
spindle will have more Ackerman.
You will note that J&J go-karts use this feature. When you turn the wheels all the way in either direction, the inside
wheel will “tuck” (turn) more than the outside wheel.
OVERVIEW- ACKERMAN EFFECT
Ackerman Effect
Top view
