[s-cars] Consensus on Painting/Coating EM??? - redux

[Doug Landaeta]

For what it's worth, when installing a used RS2 EM
for me, Tim at NorthernEuropean said, "I sent it
out to be ceramic coated, it needed it and I
wanted it to be right for you".
I'll pick up the car next week.

Doug L
94S4 mit new clutch

> -----Original Message-----
> From: MLP [mailto:mlped at qwest.net]
> Sent: Thursday, March 18, 2004 9:24 PM
> To: 'Fifield, Douglas'; s-car-list at audifans.com
> Cc: Audi20V_Kruemmer at yahoogroups.com
> Subject: [s-cars] Consensus on Painting/Coating
> EM??? - redux
> 
> Doug -
> 
> My apologies if this seems like beating a dead
> horse, but....
> 
> FWIW, I was unaware of this before, in his
> chapter "Turbocharging, Past
> & Present"  A. Graham Bell offers the following
> bit of Porsche trivia
> along with a cut away photo, "The Porsche 944 in
> 1985 ..... feature
> contributed to this 2.5-liter 2-valve engine
> producing 217hp at 5800rpm
> and 243lb/ft of torque at 3500rpm.  (In 1989
> this increased to 274hp and
> 258lb/ft.)  The intercooler dropped intake
> charge temperatures from
> 130°C to 50°C under ideal conditions.  [emphasis
> added]  TO KEEP HEAT IN
> THE EXHAUST GASES FOR QUICKER TURBO SPOOL UP,
> THICK CERAMIC LINERS WERE
> FITTED IN THE EXHAUST PORTS (this also assists
> cooling by preventing
> heat transfer to the head) and the exhaust
> headers WERE DOUBLE WALLED
> STAINLESS TUBES...." page 51, of Bell's "Forced
> Induction Performance
> Tuning, a Practical Guide to Supercharging &
> turbocharging."
> 
> I could probably scan a copy of the cut-away
> photo, illustrating the
> ceramic port liners.  I've never heard of Audi
> doing this, but who knows
> on some of its IMSA projects, perhaps....?
> FWIW, the ceramic port liner
> in the cut away picture looks to be quite thick
> ~ a lot thicker than I
> would guess a Swain barier coating would be.
> 
> HTH
> mike
> 
> 
> > -----Original Message-----
> > From: s-car-list On Behalf Of Fifield, Douglas
> >
> > Not to open a can of worms, but is there any
> consensus on the
> > value of coating/painting an EM before
> installing?  Same
> > question on the turbo while it's out.
> >
> > Douglas in MN
> > 95.5 //S6Avant - mine
> 
>