[s-cars] Big Red (Black) Installation

[Theodore Chen]

--- Sean Douglas <quattro20v at telus.net> wrote:

> I finally got around to laying out the cash for the front brakes. I have
> the 993tt big blacks (928 GTS actually) and am using the A8/S8 rotor,
> 323 mm x 30 mm with the RS2 brackets. I also have OEM Textar pads,
> damper pads and wear sensors.
> 
> 1. do I need to swap calipers from left to right? The leading piston
> should be the smaller one, therefore it is ontop, right?. If I arrange
> it this way, the bleeder screws are pointing down. Do I reverse the
> bleeder screws and connecting pipe?

if by "leading piston" you mean the piston that sees the rotor first
as the rotor turns, you're correct.  on the UrS4/S6, the calipers
are in front of the hub, so yes, that means the leading (smaller)
piston would be on top.

> 2. I've read that its best to use a brake hose with a banjo fitting
> where it attached to the caliper, or the brake hose sticks out and may
> interfere with the suspension. Anyone had this issue? I was planning on
> using a OEM rubber brake hose from a MkIV Golf which is 435 mm long and
> has the banjo fitting.

if you use the rubber flex hose, you are giving up a major advantage
of the brembo calipers: stiffness, which translates into good pedal feel.
there are DOT-legal braided steel lines.  i strongly recommend using those.
by the way, i don't use banjo fittings with my 996 calipers, and i don't 
have any problems with routing.

> 4. How did you hook up the wear sensors? Did you just cut the white plug
> off and splice into the Audi plug? Or did you find the mating half to
> the Porsche plug?

if your pads have wear sensors, then i would cut off the plug and splice
in the old plug from your audi pads.

none of my pads for the porsche calipers had wear sensors, so i just
shorted the ends of the old plug (pad side) together.

-teddy


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