ackerman!!
 

ok. i'd like to hear of people's opinions on the ackerman effect, and primarily, what difference it makes at differing speeds...


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Well, I'm not entirely sure I am using the right terminology, but...

Less Ackerman (smaller difference in angle between steered wheels) - sharper steering response, more tyre scrub at speed, depending on the car design you may get a smaller turning circle.

More Ackerman (larger difference in angle between steered wheels) - smoother steering response, less tyre scrub so perhaps carrying a little more corner speed.

Like most geometry things, it is a pretty fine adjustment.

I’ve played around with the Ackerman on my b4 a lot in 06 both indoors and outdoors using Caldicot in Wales for the indoor test track and Coventry mid west for the outdoor track

At Coventry I ran the Ackerman bar its self further back on the bell crank bars this put the turnbuckles almost horizontal ,this creates a bigger turning circle and made the car feel safe at high speed but a tad under steer on low speed

At caldicot I modified the bulkhead and top plate and ran the Ackerman bar upside down and further forwards, this made the front very aggressive as the turning circle was far less.

The X factory lads have a mod on the x5s that shorted the distance between the ackerman pick up and the front steering arm pick up, Tom cockrall told me this gives the car better on power steering.

I like more ackerman... :eh?:


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