Hi James,
Ackerman and toe-out on turns are two seperate things. Changing the rack
position won't change the ackerman, but it will change the toe-out on turns.
On custom made/kit cars you need to measure the toe-out on turns, for
example if you turn your steering wheel half a turn on an average autox
course, measure what toe-out on turns you have at that point, don't forget
to add your static toe setting to that amount. Let me know what that
measurment is and let's go from there.
Thanks
Barry
----- Original Message -----
From: "James Creasy" <james@thevenom.net>
To: <ba-autox@autox.team.net>
Sent: Wednesday, January 08, 2003 11:11 AM
Subject: ackermann tuning for autox?
> i know ive asked this before, but here i am again...
>
> i am right in the middle of changing the position of my steering rack to
put
> more ackermann in my car. i think it changes it from about -100%
ackermann
> to +30%. however ive got no clear idea of how to determine how much i
> should have. i know it has been debated for years, but modern tire
> composition might warrant higher amounts of it.
>
> will anyone else that has set up this give me any hints? what should i
look
> for in tire temps, etc. (this is with dot-r tires. )
>
> the bonus question is what about my car might make it have an unusual
> affinity for hoosiers- a good two seconds faster than on kumhos (on
> concrete). or are kumhos just that much worse on concrete but not so
> different on asphalt?
>
> thanks,
>
> -james
|