[s-cars] Re: Big Red Rear Brakes

[QSHIPQ at aol.com]

Robert:
When I refer to "4 channel abs vs 3 channel" the 4Channel ABS by definition
is the EDL on the 95> S6.  There is no proportioning valve so the rears are
impending lockup via the ABS sensor.  Before you fit larger rears, you may want
to make sure your rear calipers are moving freely on the sleeves.  What I find
in the EDL cars is stuck or sticking rear caliper pins all the time.  This can
cause excessive wear.

I had a customer that beat the living crap out of his 95 S6 at the track with
Big Red fronts, and he was averaging 3 rear changes to every front (but the
rotor life was about the same as the fronts).  Those rear pads were used from
like 83 thru 96, and they are *cheap* even in performance applications.  For
the price of the BRR, you can buy rear pads for the service life of your car,
including track events.  Buy the audi piston retractor, it's worth the
investment.

I'd change to a more agressive rear pad, and add some removable ducting to
the rear rotors for track events if you think heat is a problem.

IME there is no "cheap" upgrade for the rears of any q.  The complication of
a needed parking brake makes this upgrade (read Hap's post) less desireable.
Some sort of parking brake "rig" other than a factory "cable" could make this
upgrade...  Unsellable.  Proceed with caution, IMO, miss piggy is miss piggy.
A serious track guy shouldn't be caught riding miss piggy this way (pun
intended).  A serious track guy would get a better and cheaper animal.

Doing the "ring" or tracking miss piggy every weekend?  (Wrong car? or) Go
for it.  Want to do something "inexpensive"?  Address the heat problem in the
stock rears.

HTH

Scott Justusson
QSHIPQ Performance Tuning


In a message dated 10/20/2003 10:06:31 PM Central Daylight Time,
RCaro900SS at aol.com writes:
I think everyone is forgetting about the EDL on 95 S6.  I run a 95.5 S6 on
the track.  It has
AP 343mm discs with 6 piston calipers.  I use up 3 or 4 rear pad sets for
each front set. I believe that the EDL is pulsing the rear calipers, and
causing
excessive heat and wear. Iam trying to find an inexpensive solution for
fitting larger rear discs. Anyone tried this?

Regards,

Robert