Re: Audi 100

[Eric Fletcher <steadi@swbell.net>]

on 10/19/99 11:39 PM, C1J1Miller@aol.com at C1J1Miller@aol.com wrote:

> Phil Payne writes:
> -------------------------
>> Lowering a Type 44 quattro inevitably raises the roll centres - that's
>> why I don't personally recommend it.  As far as I can see only the V8Q
>> had a rear anti-roll bar.  The 200TQ 3B - which _was_ officially
>> imported in small numbers, all LHD - has a conventional Type 44
>> suspension.  No sign of any anti-roll bar on the fiche
> -------------------------
> Claus replies:
> -------------------------
> ::And no sign looking under the rear either!
> ::But how to get one?
> 
> ::Claus Vegener 200QT 20V Avant 1990
> 
> I believe the '92 S4 (derived from the type 44) used a rear bar; you could
> likely swap in the rear setup from one of those, if you think the bar would
> help...


First off lowering a car will not raise the roll center.  Roll Centers don't
work that way.  There is a post by me on the roll center and camber curves
of a type 44 in the archives here's the link:
http://www.audifans.com/archives/1995/04/msg00195.html
Here is also one that will demystify Bump Steer:
http://www.audifans.com/archives/1995/09/msg01653.html

Secondly, a rear bar on a type 44 is going to do next to nothing to decrease
understeer.  The inside rear wheel is already so lightly loaded that a
conventional rear bar will only help to raise the inside wheel. The rear is
not the problem on the Type 44 chassis.

Want to make a Type 44 corner flatter and understeer less?  put more roll
stiffness at the front and try to keep the front end from falling over.
Like I said in the roll center article. Type 44's need unconventional
thinking to work.


Eric Fletcher S.O.C.
87 5KCSTQ with all the toys
00 S4 Being delivered Thursday