[s-cars] The Big Blacks shimmy

[Paul Friedenberg]

Yup, wasn't really a shimmy, but a humming. Rotors were not noticably
warped, but enough to create this humming when driving without the brakes
applied. Turned the rotors and the direction of the slotting (facing
rearward now).  Glad to answer any further questions...


>From: "Fred Munro" <munrof at sympatico.ca>
>To: "Igor Kessel" <igor at s-cars.org>,"Audi S-list" <s-car-list at audifans.com>
>CC: "Audi Q-list" <quattro at audifans.com>
>Subject: RE: [s-cars] The Big Blacks shimmy
>Date: Sat, 31 Aug 2002 17:18:51 -0400
>
>Hi Igor;
>
>Paul Freidenberg recently posted a similar problem with his BB setup (993
>calipers, S6+ rotors). As I recall he tried several suggested remedies to
>no
>avail and finally solved the probem by turning the rotors. The thread
>should
>be in the archives - around mid-June this year, I think.
>
>Fred Munro
>'94 S4
>
>-----Original Message-----
>From: s-car-list-admin at audifans.com
>[mailto:s-car-list-admin at audifans.com]On Behalf Of Igor Kessel
>Sent: August 31, 2002 12:36 AM
>To: Audi S-list
>Cc: Audi Q-list
>Subject: [s-cars] The Big Blacks shimmy
>
>
>Folks,
>this is strange.
>My Big Blacks shimmy under light pedal application ONLY if I am braking
>from above 60 mph. The steering wheel shakes rather violently if braking
>from above 100 mph. No shimmy whatsoever in city traffic in stops from
>50 mph and below.
>
>I am utterly puzzled. The brakes have been properly broken in. And no, I
>didn't do any track events lately, just normal city driving. Hell, I
>didn't even warp my G60 in previous years.
>
>My set-up:
>928gts + RS2 + S8 (323x30mm, by Zimmermann, slotted) + Mintex Red
>
>Any ideas?
>
>--
>Igor Kessel
>two turbo quattros
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