[urq] Audi A4 brakes for the urq

[Martin Pajak]

To be honest I've never had a problem with the G60 rotors (Brembo) untill one of the front driveshafts started to fail.... 
Once the driveshaft was fixed and rotors resurfaced problem had gone away.

On the SQ brake front, I had a bent hub, which would cause SQ rotors to warp but not the stock single caliper set...

To add few other reasons that rotors warp, tie rods, stuck caliper sliders, dirt between rotor and hub (those mating surfaces have to be nice and clean).

Hope this helps.
Martin

---------- Original Message ----------------------------------
From: "Mike Del Tergo" <mdeltergo at hotmail.com>
Date:  Mon, 20 Sep 2004 15:13:17 +0000

>Bill,
>I think you missed my point.  You may be right about warpage not being 
>application specific, ie., all models have problems.  In as much as warpage 
>is caused by heat, or lack of ability to adequately shed heat.  I proposed 
>using a 312mm rotors, designed, (you say poorly) to shed heat generated in 
>stopping ~4000lb car, on a car only weighing ~3,200lbs.  This should provide 
>marked improvement in heat dissapationability over stock ~276mm.  I assume 
>when you say "they make rotors out of soft metal..." You mean factory apps.  
>If you add in a quality Brembo or Zimmerman on top of the larger rotors I 
>would assume warpage would be minimized if not eliminated.
>Mike
>
>
>
>Date: Sun, 19 Sep 2004 21:00:20 -0700
>From: "Bill Bennett" <ur.quattro at verizon.net>
>
>Mike, the brake wear and warpage problem is not isolated to one chassis A-4,
>A-6 or A-8 even with the huge 4 brake pad per side system on A-6 4.2 or the
>S-4, A-8 just more dollars for repair, and it is not just Audi, it is
>MickieBenZ, BumMerW, VW, Slabb, umm, Volvo It seems like they are so
>concerned about noise, they make the rotors out of soft metal. shoot even
>rear rotor warpage is common on the above at 50,000 miles, and you do not
>fix a warped rotor, you replace it. Bill
>----- Original Message -----
>From: "Mike Del Tergo" <mdeltergo at hotmail.com>
>To: <ur.quattro at verizon.net>
>Cc: <urq at audifans.com>
>Sent: Saturday, September 18, 2004 8:48 AM
>Subject: Re: [urq] Audi A4 brakes for the urq
>
>
>>Seems to me the A4 caliper, mated with the TT carriers and the A8 rotor
>>would get past this problem. A rotor designed to stop a 4000lb plus car
>>should hold up well on a 3000lb cars.
>>BTDT UrQ
>>Mike
>
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