ICONCLS

At my last DE I used Porterfield R-4 "Full Race Compound" pads for my RS 6 and experienced horribly uneven pad wear within the <i>same</i> caliper. For those of you unfamiliar with the RS 6 caliper, each caliper takes <b>4</b> pads, 2 at the top and 2 at the bottom, configured thusly:

<img src="http://pictureposter.audiworld.com/8010/rs6_brake.jpg">

Essentially, I went through ~57% of the pad material on the top pair of pads and 3% on the bottom pair. The uneven wear was consistent on both the left and right caliper.

Picture below indicates the remaining pad material:
<img src="http://pictureposter.audiworld.com/8010/porterfield_uneven_wear.jpg">

Note, last season I was running Pagid RS 15 Grey material on the track and did not experience the uneven wear, nor do the stock pads exhibit it.

Any insights, ideas what's going on here?


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Press

it's just the way you drive...8^)

ryoung

The top pads do run hotter. The rotor gets pre-heated by the bottom pads and then the hot section rotates under the top pads. [All of which I'm sure you knew.]

I had a set of Pagid Blue pads almost completely evaporate in one 30 minute track session. When I hit some magic temperature, the pad just disappeared. With your Porterfields, perhaps the lower pads run below a similar "magic temperature"; and the top pads, above.

1.8T Boricua

the stock fluid you need to change it. The fluid is cooler on top so it reacts better than the bottom which is hotter and compresses more.

ICONCLS

Nope, using Motul 600.

ICONCLS

Guess it's back to Pagid RS 15's. I really want to get rid of these calipers and small pads soon.

Press

If you want to get rid of your rear brake calipers, rotors etc....let me know...

Bauer

Alcon's calling your name

1.8T Boricua

if you really want stopping power get AP Racing's brake setup

ICONCLS

Thanks for the offer, just have them shipped to mi casa, you're the best!