deggial

can ackerman be adjusted on Fc's ?

RETed

No, unless you're going to totall redesign the steering geometry - read:  expensive and/or labor intensive.

Why would you bother?  What small advantage you get with messing with Ackerman is all destroyed by the compliance of your chassis and suspension.


-Ted

DamonB

Care to explain that? There are some very hot debates in the racing world right now about Ackerman...

deggial

I was just wondering.

I have a set wheels with 0 offset and wanted to know if there were ways to compensate for it.

thanks for replying.

DamonB

Ackerman and wheel offset have nothing to do with eachother. Ackerman is the idea that the steered wheels on the inside of a curve must be turned a greater amount since they travel along a smaller radius than those at the outside of a curve.

deggial

With the 0 offset, won`t there be more understeer??

See this link:
http://pub25.ezboard.com/fdorikazefr...cID=4473.topic

RETed

I'd like to see thoe debates - got a link?
RCE had a very nice V Angles article on Ackerman and F1 racing.
Basically, teams were going with negative (or was it positive?) Ackerman on the steering to get the inside wheel to turn quicker than the outside (or did I get that backward?).

This allows a split second faster response of the chassis going into a turn, but the steering responsibilities shift eventually to the outside front wheel.  The advantage was for the initial turn-in - this works very well on very stiffly sprung suspensions and stiff chassis.  If there are compliance, this short transient on turn-in gets absorbed.  On street cars, this point is basically moot.

Also, changing the Ackerman steering is a royal pain in the ***.



-Ted

DamonB

Off the top of my head I recall the Van Valkenburgh aticles you mention but I know I found some online too. I will see if I can find them again...