[s-cars] changing '92 "UFO brake setup"

[Robert Rossato]

Keep in mind that Willem is in Europe.  We never received the UFO setup
on the S4, and they never had the G60 setup we had on the S4/S6.  The
stock S4/S6 brakes after '92 (I think that's when they went away from
UFOs) in Europe were 314mm rotors with the equivalent of the HP2  dual
piston, 4 pad, calipers.

Willem. The '93 V6 setup you mentioned should have 288mm x 25mm rotors
and single piston caliper.  I believe the strut/bearing housing is the
same as what we received for the S4/6.  The '94 V8 setup should be from
an S4 and would have the above mentioned 314mm rotors and HP2 calipers.
It has a strut/bearing housing unique to the S4/6.

Other options is to upgrade to the Porsche 993tt Big Red calipers using
the caliper bracket from an RS2 and S8 rotors, or Porsche 993tt 2-piece
rotors with a custom hat (I believe the BIRA System 6 hat works with the
RS2 bracket/993tt calipers).  The RS2 bracket, 8A0 615 125 A, will fit
the strut housing from the '93 V6.  Don't know if it will fit the Euro
S4/6 strut housing.

Bob

> -----Original Message-----
> From: s-car-list-bounces at audifans.com 
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Mark Strangways
> Sent: Monday, April 25, 2005 1:18 AM
> To: willem.smit; s-car-list at audifans.com
> Subject: Re: [s-cars] changing '92 "UFO brake setup"
> 
> 
> Look to Bira.org.
> 
> They have a design that replaces the UFO brakes with some 
> Porsche calipers 
> and Mercedes rotors I believe.
> 
> Might be cheaper than getting struts, calipers, pads, hoses 
> etc. and the 
> cost to swap it all out. And the "Since you are in there" ... 
> you might as 
> well lower it and do the shocks too.
> 
> I would think the Bira system would outperform the G60 Audi 
> stock stuff, we 
> always seem to replace them around here.
> 
> Another option is getting the Euro struts, they had bigger 
> and better rotors 
> and calipers.
> 
> Mark S (Bira System 6x)
> 
> 
> ----- Original Message ----- 
> From: "willem.smit" <willem.smit at zonnet.nl>
> To: <s-car-list at audifans.com>
> Sent: Monday, April 25, 2005 12:59 AM
> Subject: [s-cars] changing '92 "UFO brake setup"
> 
> 
> Hi,
> 
> I want to change the UFO brake setup of my '92 S4 avant for 
> regular ones. I 
> understood that I need to replace the whole strut and then 
> exchange the 
> shocks/springs back. I ran across 2 options one setup from a 
> '93 V6 and the 
> other from a '94 V8 C4 (audi 100). I've never done such a 
> swap. So I have 
> some Q's. Will these fit? What things to check before buying? 
> What things to 
> bear in mind before swapping? How to proceed when swapping.
> Thanks.
> Willem
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