[s-cars] RS2 Manifold Head Studs - 10.9 Hardness

[mlp qwest]

From: MLP [mlped at qwest.net]
To: 'Sean Douglas'; 's-car-list at audifans.com'
Subject: RE: [s-cars] RS2 Manifold Head Studs - 10.9 Hardness

What's your local dealer suggesting is the appropriate "price" for these
(IMPE) plus the turbo to downpipe studs & nuts rather costly parts?  As I
recall, @ 3 years ago I think the dealer was asking  for something like @
$10+ each - @ $80+ for four nuts with studs.  As Mae West would say, don't
loose or abuse your studs, or nuts .....  BTW, the parts desk justification
for the cost, "These must be made of very special stuff...."  I know the
nuts at least are a special copper colored steel, but I couldn't get anyone
to tell me, or even guess what that might mean.  As an alternative I tried
going to a specialty fastener shop in Denver.  Their catalog listed a few,
pretty costly but no where near as dear as the Audi dealerships, aircraft
spec nuts for high temperature applications.  They had no listings however
for studs in any special high temp steel application - maybe such things
don't exist.

mike

> -----Original Message-----
> From: s-car-list On Behalf Of Sean Douglas

> I'm currently pricing the hardware for the re/re of the turbo
> and EM manifold in preparation of the RS2 upgrade. It appears
> all parts are available from a local dealer except the
> shorter studs. The recommended shorter stud is 8x27 mm (N 906
> 486 01) is not available in North America, but a slightly
> longer one 8x28mm with a 10.9 rating is available (N 044 410
> 4). Does anyone know if the 10.9 hardness is suitable for
> this application?
>
> Thanks,
>
> Sean Douglas
> 1997 Audi S6 - MTM Stage 1+
> 1990 Audi 90Q20V
>