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The Science of Setup: Part 7 - Steering Geometry ( Ackermann )

This is an ongoing series of articles written by its creator Bob Wright. You can download a  free trial version of the software , and learn ...

This is an ongoing series of articles written by its creator Bob Wright. You can download a free trial version of the software, and learn how to get the most out of your car when you take it to the track.

The Science of Setup: Part 7 – Steering Geometry (Ackermann) 

One thing you will find is if you do any research on the effect of Ackermann (also called Dynamic Toe) is a lot of different opinions. One of the main arguments is most of the turning is done by the outside wheel so the inside wheel has little effect. While this certainly has some merit at mid corner when the inside tire has very little load on it still does have load on it anything you can do to squeeze a little more overall grip is going to give you an edge. Also at corner entry and exit the inside tire has more load on it so it becomes much more effective.



You can adjust the Ackermann settings on your RC car by usually adding or removing shims on the steering bridge to move the ball joints that mount the steering turnbuckles. Some steering knuckles also have two or more settings to change the Ackermann on the outer edge. Remember, moving your front wheelbase also can adjust your Ackermann angle

So let’s have a look and see what we can learn about Steering Geometry. Episode 7 – Steering Geometry 


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