quattro digest, Vol 1 #3789 - 14 msgs

[Larry C Leung]

Is it possible that your mechanics source of rotors is
less than...acceptable. I did have problems with
Brembo calipers, but it took some pretty aggressive
driving (with lots of brake smells, I was late...) to cause
them to warp. I have had NO problems with even stock,
OEM ATE rotors (same thing as as the atomic groove slotted
ATE Powerdisc rotors, without the groove) without going
to any extreme lengths, and I've even autocrossed the beast.
Try ATE rotors (slotted, i.e. Powerdisc or not OEM) AFTER
checking out all of the other issues Taka has mentioned. A dragging
brake will quickly kill the rotor, though that would be noticed by
an incredibly hot wheel/brake after any drive of more than a few
minutes. And finally, turned rotors will warp more quickly than new
ones, as there is less material to heat up, so they get to higher
temps faster.

HTH,

LL - NY

> From: "TM" <t44tq at mindspring.com>
> To: "'Zsolt Kovacs'" <zsolt at telusplanet.net>
> Cc: "'Zsolt Kovacs'" <zsolt1 at telusplanet.net>,
> <quattro at audifans.com>
> Subject: RE: What are my front brake upgrade options?
> Date: Wed, 7 Aug 2002 15:51:16 -0400
>
> How about ordering the air scoops and the brake ducting from a
> '91 200 and mounting that on your car? That will get more air
> to the rotors, but warping them in one stop is strange.
>
> Taka
>
> -----Original Message-----
> From: Zsolt Kovacs [mailto:zsolt at telusplanet.net]
> Sent: Wednesday, August 07, 2002 11:24 AM
> To: TM
> Cc: 'Zsolt Kovacs'; quattro at audifans.com
> Subject: Re: What are my front brake upgrade options?
>
>
> Thanks for the tips Taka, but unfortunately these are the rotors. I
> had
> them turned as well, they lasted for a while then started in again.
> It
> was just as bad on my previous car. After I just had them done
> somebody
> cut me off and one emergency braking warped them again. I just
> talked to
> a German car specialist recently who has a type 44 turbo and he's
> having
> the same problem. He just ordered slotted rotors to try out. I also
> heard that others on the list had warping issues as well, that's why
> I'm
> asking for alternative ideas.
>
> Cheers,
>    Zsolt
>
> TM wrote:
>
> > Have you checked for problems before throwing parts at it?
> >
> > Sticky calipers and bad control arm and swaybar bushings can all
> cause
>
> > symptoms that either may be or feel like warped rotors.
> >
> > I was warping rotors on my 5ktq (3 sets in under 6 months) but
> after
> > replacing the swaybar bushings, the problem went away.
> >
> > Taka
> >
> > -----Original Message-----
> > From: quattro-admin at audifans.com
> [mailto:quattro-admin at audifans.com]
> > On Behalf Of Zsolt Kovacs
> > Sent: Wednesday, August 07, 2002 12:31 AM
> > Cc: quattro at audifans.com
> > Subject: What are my front brake upgrade options?
> >
> > I am getting tired of my constantly warping rotors on my 88 5k
> tq.
> > Wondering what the different alternatives would be to prevent that
> and
>
> > increasing the breaking power would also be nice.
> >
> > Anybody has experience with slotted of cross drilled rotors? How
> about
>
> > swapping the front brakes all together. I would love to change
> them
> > for Porsche brakes but I'm told it would cost a fortune. Is there
> > anything else?
> >
> > Any suggestions? BTDT?
> >
> > TIA,
> >   Zsolt