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Old September 25th, 2009, 07:35 AM   #2
Unkl Ian
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Join Date: Dec 2002
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Default Re: Front end alignment basics

The Ackerman page compares "Positive Ackerman", and "Zero Ackerman".

With Positive Ackerman, the inside wheel turns tighter than the outside. That is the way 99.99% of cars were made.
Makes sense, since the inside radius of a turn is tighter than the outside.

Reverse Ackerman, AKA Anti-Ackerman, creates the opposite effect, the inside tire turns less than the outside.
That is what happens when " rear steer" spindles are mounted backwards. The inside tire wants to go straighter than the outside, so the car will "push" in a turn. Commonly seen on poorly thought out Rat Rods.
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