Source for new 36 mm rear calipers?

[LL - NY]

Not sure how the chassis balance is on the LT1Q, but with the same brake
set-up (okay, the S6 rears are sized like T44TQA rotors) on the S6, there is
significant dive, the rear gets unnervingly light BUT ABS rarely activates
while the car is decelerating at a relatively wicked rate. That would imply
that the brake bias is pretty well spot on, which, IMHO opinion means there
should be essentially NO pressure to the rears... ;-)

On Fri, Oct 23, 2009 at 9:46 AM, Peter Golledge <petergolledge at gmail.com>wrote:

> I'd second the vote for using the 38MM units.  I doubt you will notice.
> Worst case if you don't like the result put a proportioning valve into the
> line so that you can manually adjust want you want.
>
> The LT-1Q is running with Twin Turbo Big Reds up front and regular Type 44
> rear calipers, it NEEDS a proportioning valve ;-)
>
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com]
> On
> Behalf Of Joshua Van Tol
> Sent: Friday, October 23, 2009 6:58 AM
> To: Radek
> Cc: quattro at audifans.com
> Subject: Re: Source for new 36 mm rear calipers?
>
> Did the proportioning valve change at the same time?
>
> I doubt that the braking changed much with that small of a change. Just
> changing to a different friction compound would likely make more of a
> difference.
>
> My vote? Run those 38 mm calipers.
>
>
> On Thu, Oct 22, 2009 at 8:28 PM, Radek <radek at istar.ca> wrote:
>
> > Thanks to all who replied and tried to help.  The final conclusion:  36
> mm
> > rear calipers are out of production and no longer available from
> aftermarket
> > vendors (available from the stealer for about $500 a piece though).
> >
> > I am now facing a choice:  getting a remanufactured 36 mm caliper with
> all
> > the associated headaches (it will probably start seizing by the end of
> > winter) or getting two brand new 38 mm calipers for the rear (those are
> > available).  Will 38 mm give me too much braking power at the back?
> >  Starting at VIN J-240,000 cars were equipped with those as standard and,
> > according to Family Album, front brakes remained the same.  BTW, ABS does
> > not work.  Any opinions?
> > Thanks.
> >
> > Radek
> > 88 90Q
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