[urq] CQ & urq Rear brake upgrade & Comparison

[Todd Phenneger]

Thanks Eric,

I have never been on the brembo site before.
Interestingly I did find some tips on the Coupe Quattro if anyone happens to
own one of those also.  This may also work for UR-quattro's if you wanted to
go even larger than the S6 Setup.  Not sure about hat differences though.

http://forums.fourtitude.com/zerothread?id=1572831

Probably not worth it on the urq since we have a direct bolt on upgrade and
I doubt you'd notice a huge difference moving from 269x20 to 280x22mm.  But
if anyone out there is running 400+hp and tracking then the setup on the
above page with the Aluminum A8 Caliper might be nice.  If you can get the
offsets to work.

l8r.   Off to browse the Brembo Catalog.




> From: Eric Renneisen <racingiron at comcast.net>
> Date: Tue, 15 Jan 2008 19:09:48 -0500
> To: 'Todd Phenneger' <tquattroguy at yahoo.com>
> Cc: 'urq list' <urq at audifans.com>
> Subject: RE: [urq] CQ & urq Rear brake upgrade & Comparison
> 
> I've found the Brembo online catalog is usually a good source for rotor
> dimensions.  The key is to use the UK catalog rather than N. Am.  In
> this case (CQ rears) the N. Am. catalog just gives some basic
> dimensions, but the UK listing shows the full diagram.  You just have to
> be sure that you're looking at the right rotor since they have so many
> more choices over there, but the Audi P/N is right on the diagram.  The
> rear CQ rotors are shown with a 32.5 mm offset from the inboard face of
> the rotor to the hub mounting surface of the hat.
> http://www.brembo.com/ENG/catalogo_AM/2007/index.html
> 
> As for the calipers, ETKA ATP is your friend.  The CQ caliper P/N
> matches the mid '89-'92 80Q/90Q, '89-'94 100Q, 200Q (MC, except avant),
> '95-'98 A6Q, and '97-'99 A8.
> 
> Eric R.
> '86 urq
> '92 urS
> '93 urS
> 
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On
> Behalf Of Todd Phenneger
> Sent: Tuesday, January 15, 2008 11:21 AM
> To: Andrew
> Cc: urq list
> Subject: Re: [urq] CQ & urq Rear brake upgrade & Comparison
> 
> 
> Thanks for reply Andrew,
> On the UR-Q I think I have it figured out.  Seems its the other way
> around. IE...you need V8/S4 Rotors.  The 91¹ 200 rotors are the upgrade
> for the 5ktq/200 10v Cars.
> 
> As for hubs, 90q uses its own hubs.  They are 4x108 but that doesn¹t
> mean much.  What I mean by that is that the hub to rotor mating surface
> is the same on all the hubs so you can re-drill a rear set of rotors to
> match.  On my 4ktq I¹m running UR-Quattro struts with 5ktq rear Hubs as
> the ur-q hubs push the wheel to far out.  Because of this I cant run the
> ur-q rotor or the 5ktq rotor.  So I have to run a 4kq rear rotor that is
> drilled to 5-bolt. ³ugh².
> 
> I¹m not afriad to put 5-bolts on the CQ as then I can share wheels with
> my ur-q which would be nice.  But alas, I cant seem to find the specs
> for the rear brakes of the CQ.  IE...Offset of rotor, etc.  I wish there
> was a
> listing somewhere of Audi Rotors and their offsets.   As well as Audi
> Hubs
> and their respective offsets.  I know an S4 front hub pushes the wheel
> out ³6mm ?² more than a 5ktq hub.  I¹m not sure where the ur-q hub falls
> in here.  I also know a ur-q rear hub has MUCH more offset then a 5ktq /
> 4kq rear hub.  5ktq/4kq are same offset hubs but use very different
> rotors because the 5ktq uses a different caliper and carrier in back.
> But you can swap the hubs freely to convert a 4kq to 5-bolt.
> 
> Ahhh, To many numbers.
> 
> 
> 
> 
> 
> 
> From: Andrew <afinn1 at gmail.com>
> Date: Mon, 14 Jan 2008 14:52:26 -0800
> To: <tquattroguy at yahoo.com>
> Cc: <urq at audifans.com>
> Subject: [urq] CQ & urq Rear brake upgrade & Comparison
> 
> Todd, if you're using 4KQ hubs... aren't they 4 bolts. Won't work. As
> for the rotors I have done this conversion on 2 urqs, so you'd think I
> remember, but I think the V8 urS4 rotors don't work, you need the 200
> ones (because of offset issues). It could be the other way around, but
> I'm pretty sure.....
>  
> Andrew Finney
> 1985 UrQ
> 
> 
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