Re: Suspension Analysis

[Michael Williams <daserde@ucla.edu>]

i ma confulsed about what you are saying.  As far as i know, "PUSH" is
understeer.  That is why the front tires would wear out.  I have an 85
Coupe  and i have 195/60VR14 AVS Intermediate tires on it and there is
virtually no understeer through corners.  I am getting tired of the body
roll however and i would appreciate some suggestions for tuning the
suspension.  I am looking for something that is not very expensive at all
preferably as i am a student in college.  BTW does anyone opn the list live
in or around San Francisco and if so have you seen a Red coupe with the
license plate SCCA GT.  Also do any of you live in mountain view by truman
avenue as there are a pair of beautiful coupes owned by a father and son.
See ya all.
Mike
85 Coupe GT



>Jeffrey wrote:
>
> "but I soon figured out that big bars on the back of FWD cars are kind
>of pointless if the inside rear wheel is already lifting off the ground
>under hard cornering ... and if you drive these cars the way they're
>meant to be driven, this happens all the time!
>
>The "purpose" of the rear bar is in the area of "oversteer" and
>"understeer" Audi's Coupe GT(non turbo non quattro) are notorious for
>the "PUSH" under hard cornering. Due to the weigth of front end, and
>"saftey minded" suspension engineering.
>
>The rear anti-sway bar actually helps out the front suspension, by
>keeping the "outside nose" from diving too hard in a corner, and
>therefore, reducing the inherant oversteer, or "push".  SO, if you leave
>the bar off, it makes matters worse. Especially for a street driven car,
>and an "average" driver.
>
>I have driven my 86 Coupe(n/a) with fullly tweeked suspension, on many a
>SCCA track events. Some where three laps WORE OUT the front tire's!
>It has been video taped many times, none of which show the rear tire's
>departing from the ground. I'm not saying its not possable, mine's been
>on two wheels before, but very difficult for mine with its suspension
>setup the way it is. A stocker, yes, cause all the body roll lends a
>hand in it. The Coupe with its large over steer effect usually will
>slide out the front end before the rear pitches high enough to lift! Its
>wheel base is just a bit too long fer this.(my opinion)
>
>Now, VW GTI's, there at home with the inside rear airborne. A friend of
>mine would try to stop this wheel from turning, while in corners, just
>to amaze the audiance!
>
>I have reads book to this case that tell you how to increase/decrease
>oversteer/understeer with different sized anti sway bars, tire widths,
>etc... so I feel one cant just omit the rear anti-sway bar, unless your
>"setting up" for an event and a "seasoned driver" in this arena.
>
>
>                                       M