[urq] FW: Brakes for the UrQ

[Nathan Engelbert]

I'm running the same setup as Eric, and fuchs definitely don't fit with
20mm of spacer.  I didn't try any more at that point, because it was
pretty clear that it needed a decent amount more spacer, and I had run out
of spacers to stack, and threads on the wheel studs I'm using.  I also
didn't try the 15x6 ronals, because I assumed they would be just as bad or
worse.

If spoke, outer lip dish, and wheel profile are the same (which obviously
isn't the case with the OE wheels for the car), 15x6 ET45 puts the spokes
~46 mm closer to the brake caliper than 15x8 et 24.

IIRC, the main reason that the 15x8 wheel works with this setup is not as
much about the axial spoke clearance, but that the ID of the wheel doesn't
step down as much as the fuchs wheel, providing more radial clearance as
well.  Also, IIRC, the fuchs wheel with 20mm spacer had plenty of axial
clearance, but was interfering radially.

Nathan Engelbert
83 UrQ DA900453
95 S6 avant

> Eric,
> Whats the issue with the Fuchs and 15x6 Ronals.  Would those fit with a
> spacer?  I've been hoping to find a setup that works with 15" Wheels thats
> better than what I run now. I have to run a 20mm spacer with my 944t
> calipers.
>
> --- On Wed, 1/27/10, racingiron at comcast.net <racingiron at comcast.net>
> wrote:
>
>> From: racingiron at comcast.net <racingiron at comcast.net>
>> Subject: Re: [urq] FW: Brakes for the UrQ
>> To: "Steve Mills" <s.b.mills at gmail.com>, afinn1 at gmail.com
>> Cc: "urq list" <urq at audifans.com>
>> Date: Wednesday, January 27, 2010, 5:46 PM
>>
>>
>>
>> Steve Mills wrote:
>> > I'm going to be test fitting Boxster calipers with
>> 300mm rotors
>> > in the next few weeks. They should fit under 16's, but
>> almost
>> > certainly not 15's.
>>
>> I'm running Boxster calipers w/300mm rotors. Steve, what
>> rotor did you settle on? Did you find a better option than
>> the A8 one that has to be cut down? I know we discussed a
>> few options a while back. My setup fits under the 8x15
>> Ronals, but not the 6x15 or Fuchs. I also run the 8x16 urS4
>> Fuchs, but I'm sure some 16s won't work. Offset and spoke
>> clearance will be an issue with many wheels.
>>
>> These are great brakes, but if you want to really push the
>> car on the track the thin rotors (25mm) might not be enough.
>> They're OK for me, but I don't have the nerve to push my urq
>> close to 10/10ths.
>>
>> Eric R.
>> '86 urq
>> '92 urS
>> '93 urS
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>>
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