[s-cars] Calliper Colour Schemes & Piston sizes

Tue Jul 30 05:37:35 EDT 2002

--
[ Picked text/plain from multipart/alternative ]

 Guys
The 993TT callipers (note English spelling, for once) are available in Red,=
 Black and Silver. As my car is stealth personified, I decided against the =
chest-beating red ones and, on the vendor's suggestion went with the Black,=
 rather than my choice of Silver, as it was pointed out that the Silver one=
s would always look dirty. Yellow is available to special order.
As far as the calliper piston arrangement is concerned, it is most importan=
t that the 'first' piston diameter is small than the subsequent piston. The=
 reason for this is to do with the equalisation of forces upon a spinning d=
isk. In an 8 piston calliper, the arrange ment is Small-Large-Small-Large o=
n each side of the calliper, when moving forwards the Small piston is the f=
irst to apply force to the rotor.
Some figures I saw published recently indicated that the RS6 achieves a ret=
ardation under braking of 10.3 metres per second per second (what is the pr=
eferred way of writing this without superscripts?)
*--------------------------------------------------------------------*
> ATTACHMENT part 3.8 message/rfc822 Date: Mon, 29 Jul 2002 19:41:01 -0400
From: Igor Kessel
To: "Ingo D. Rautenberg"
CC: s-car-list at audifans.com
Subject: Re: [s-cars] Fwd: RS2 brackets

No, Ingo, it is not such a good idea. Although I admit, I was tempted
just to swap the sides instead of swapping the lines. The pistons are of
different DIA. I guess (although don't know for sure) that the reversal
of the pistons would create some kind of uneven brake pressure
distribution. Prolly would create some kind of shimmy problem or
something like that. Them Hans und Klaus guys must have elected the
different piston DIA for a reason. I feel it is best not to challenge
their design.

Igor

"Ingo D. Rautenberg" wrote:
>
> Then I take it a left > right swap and vise versa would not work in this
> instance (as one would think it would)?
>
> Ingo (satisfied mit his Big Reds)
>
> ----- Original Message -----
> From:
> To: ""TM"" ; ""'Igor Kessel'""
> Cc: ""'Paul Friedenberg'""
; ;
>
> Sent: Monday, July 29, 2002 6:50 PM
> Subject: RE: [s-cars] Fwd: RS2 brackets
>
> > Then the bleed nipples are on the bottom of the caliper facing down, not
> the best for bleeding air out of a caliper.
> >
> > Javad
> >
> > In a message dated Mon, 29 Jul 2002 5:14:31 PM Eastern Standard Time, "=
TM"
> writes:
> >
> > >What happens when the hard line is not reversed?
> > >
> > >I didn't check this, I didn't install the brakes myself, wondering
> > >if that was done correctly (I sure hope so), as the orientation
> > >is the same issue on the 200.
> > >
> > >Funny thing is, 944 turbos use a leading edge configuration and
> > >I just saw a customer's insane 3L 16v 944 turbo with 993tt brakes.
> > >
> > >Taka
> > >
> >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list
> >
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.377 / Virus Database: 211 - Release Date: 7/15/2002
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
> ATTACHMENT part 3.9 message/rfc822 Date: Mon, 29 Jul 2002 19:42:25 -0400
From: Igor Kessel
To: Linus Toy

CC: Paul Friedenberg
, audisport8 at aol.com,
s-car-list at audifans.com
Subject: Re: [s-cars] Fwd: RS2 brackets

Yes, the 993tt, see the thread below.

Igor

Linus Toy wrote:
>
> Hey all--
>
> Are we talking the same calipers here? I see reference to 993 (Paul F) and
> 993tt (Matt, Igor) calipers.
> The 993 caliper sits lower radially than the 993tt caliper--that is,
> mounted on the same bracket, you must fit a smaller diameter rotor under
> the 993 caliper vs. the 993tt caliper. Also means you need longer bolts
> for the 993tt caliper. So I can see where Paul would use spacers between
> the caliper and the bracket, but not between the bracket and the hub carr=
ier.
>
> --Linus
>
> At 06:28 PM 7/29/2002 +0000, Paul Friedenberg wrote:
> >Really? Now I'm confused! Is the offset (hat) different for the 323 and =
314
> >rotors? With the 314mm rotors, they were centered perfectly, but the cal=
iper
> >needed to come away from the rotor a bit. How is it that they fit over t=
he
> >larger diameter rotors without spacers??
> >
> >
> >>From: Igor Kessel
> >>To: Paul Friedenberg

> >>CC: audisport8 at aol.com, s-car-list at audifans.com
> >>Subject: Re: [s-cars] Fwd: RS2 brackets
> >>Date: Mon, 29 Jul 2002 13:52:11 -0400
> >>
> >>Au contraire. He needs to _shave_ ~1.25mm (~50 mils) off the RS2
> >>brackets, where thay mate to the hub, in order to centre the pads in the
> >>993tt calipers.
> >>
> >>Igor
> >>'97 S6
> >>993tt+RS2+S8+Mintex Red+SS lines (BBB - Budget Big Blacks)
> >>
> >>Paul Friedenberg wrote:
> >> >
> >> > Guys,
> >> > I recently sold my RS2 brackets, which with spacers fit 993 calipers=
 and
> >> > 314x30 rotors (euro A8??) Matt has the same calipers with 323x30 S8
> >>rotors.
> >> > I am giong to say that this setup will not work, any comments? Read
> >>below
> >> > email for more info...
> >> >
> >> > >From: Audisport8 at aol.com
> >> > >To: paulunm at msn.com
> >> > >Subject: RS2 brackets
> >> > >Date: Sun, 28 Jul 2002 22:35:29 EDT
> >> > >
> >> > >Paul-
> >> > > Well, I'm all ready to do my 993tt brake conversion except for
> >> > >S/S lines and super blue fluid.....Last question I promise! Where a=
re
> >>the
> >> > >spacers you
> >> > >had made supposed to go? In between the RS2 bracket and the caliper=
 or
> >> > >between the head of the bolt and the RS2 bracket?
> >> > >
> >> > >I have the 993tt calipers which are part # 993 351 425 10 and 2000 =
Audi
> >>S8
> >> > >rotors 323x30 with your RS2 brackets.
> >> > >With this in mind, do I even need the spacers?
> >> > >TIA.......sorry to be such a PITA ; )
> >> > >
> >> > >Matt
> ATTACHMENT part 3.10 message/rfc822 From: "TM"
To: "'Linus Toy'"
,
"'Paul Friedenberg'"
,
CC: ,
Subject: RE: [s-cars] Fwd: RS2 brackets
Date: Mon, 29 Jul 2002 20:09:01 -0400

Well- one's black, the other's red, would be pretty easy
to differentiate. So are we talking about the same brakes?

Taka

> ATTACHMENT part 3.12 message/rfc822 Date: Mon, 29 Jul 2002 20:37:19 -0400
From: Igor Kessel
To: TM
CC: 'Linus Toy'
,
'Paul Friedenberg'
, audisport8 at aol.com,
s-car-list at audifans.com
Subject: Re: [s-cars] Fwd: RS2 brackets

No.
The reds (993tt) and the blacks (928gts) are the same dimensionally, but
one is a mirror of another.
The reds: a direct bolt-on to an UrS.
The blacks: prior to before bolting onto the UrS do reverse the hard
line connecting the halves.

Igor

TM wrote:
>
> Well- one's black, the other's red, would be pretty easy
> to differentiate. So are we talking about the same brakes?
>
> Taka
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
> ATTACHMENT part 3.13 message/rfc822 From: "TM"
To: "'Igor Kessel'"
CC: "'Linus Toy'"
,
"'Paul Friedenberg'"
, ,

Subject: RE: [s-cars] Fwd: RS2 brackets
Date: Mon, 29 Jul 2002 20:41:28 -0400

Actually, one person (was it Linus?) brought up
993 non-turbo brakes- those are black and different
from the 993tt brakes- use a slightly smaller pad,
use a smaller rotor.

That's why it is important to differentiate by at least model
number rather than just calling them "black" or "red."

I hear what you're saying Igor, I didn't know that the 928GTS and
the 993tt use different caliper orientations.

Taka

-----Original Message-----
From: Igor Kessel [mailto:igor at s-cars.org]
Sent: Monday, July 29, 2002 8:37 PM
To: TM
Cc: 'Linus Toy'; 'Paul Friedenberg'; audisport8 at aol.com;
s-car-list at audifans.com
Subject: Re: [s-cars] Fwd: RS2 brackets

No.
The reds (993tt) and the blacks (928gts) are the same dimensionally, but
one is a mirror of another. The reds: a direct bolt-on to an UrS. The
blacks: prior to before bolting onto the UrS do reverse the hard line
connecting the halves.

Igor

TM wrote:
>
> Well- one's black, the other's red, would be pretty easy
> to differentiate. So are we talking about the same brakes?
>
> Taka
>

---------------------------------
Do You Yahoo!?
Yahoo! Health - Feel better, live better