[s-cars] Rotor hats and rings

[Eric Phillips]

> Date: Tue, 11 Apr 2006 12:00:46 -0400
> From: "Emre Washburn" <yumyjager at gmail.com>
>
> RS2 caliper carriers with RS2/993TT calipers are mated to Euro (i
> think) A8 rotors. Not need for a floating/two piece rotor unless its
> for performance reasons.
>

Note:  BIRA is doing a group-buy soon.  Hats are $450 for the set. 
Rotor rings can be had anywhere Porsche parts are sold.

The A8 rotors (323x30) are not an exact fit, because the Porsche rings
are 322x32.  Now, that one extra mm per pad shouldn't really make any
difference, except at the end of pad life.  The other issue is that
folks have is that the rotor is not perfectly centered in the caliper,
and that the RS2 bracket needs to be modified as a result.  (I dunno
why thin washers in the right place wouldn't work, but what the hell
do I know?)  I understand that this is also not a problem, because the
pistons will adjust as necessary for small non-centering issues. 
Considering the price difference between the two set-ups ($250 for A8
rotors, vs. ~$800 for Porsche/custom hat), one could put up with a
little bit of slop here and there.

In the archives (I can't remember the name now), there's a guy who
sells the whole shebang all assembled and ready to roll.  Hi
Performance Auto, or some such - Ian, IIRC.

IMO, the single-piece, high-thermal-mass A8 rotor would be preferable
in street-use situations.

Another note:  there is at least one BIRA Sys6 bracket/hat combo
available for $650.  www.bira.org

Always relishing in being a font of misinformation and spin,

Eric