Re: Exhaust manifolds (AGAIN?!)

[Dave Lawson <dlawson@ball.com>]

glen writes:
>  Not sure what issue of VW/Audi it was, but I just got it and it's my
>  first issue. The article was just a single B&W picture and caption,
>  likely a follow-up to the original article you mention. YES! I would be
>  VERY interested in any info on purchasing this or any other
>  high-performance alternative to the stock ur-Q exhaust manifold, bracing,
>  etc. The manifold that came with the replacement "donor" '83 ur-Q engine
>  is cracked, and will require rewelding at a minimum. I don't want to
>  spend big $$$ on welding, porting, extrude-hone, etc. on an inferior
>  piece and one that might just crack again. I really would like to find a
>  tubular, near-equal-length, high-performance piece.....

Since you now get VW/Audi car, much of this info is listed in the magazine, 
but I will also list it here since others might be interested. There was a 
picture of the TQC inconel exhaust manifold from Dialynx in the Nov 94 issue 
on page 41. All 5 exhaust port flanges are seperate, the turbo flange is 
mounted behind the #2 exhaust port. The wastgate flange comes out behind #5 
as usual. From the picture it looks as though the flanges are welded on. The 
manifold itself is very smooth and highly polished with a mirror like 
surface. It doesn't look nearly as pieced together as the Haywards and Scott 
manifold. Not sure how it is fabricated. It looks almost like a piece of 
art, if you can appreciate crafted/machined metal work. The price list I 
have received from them only says POA, so I am not sure what these are going 
for.

The address of Dialynx is

Dialynx Limited
10 Brooklime Close
Haydon Wick
Swindon  SN2 2SX
phone : 0793 722948
mobil : 0850 957683
fax : 0793 722948

The original H & S manifold was designed around a 1 piece flange which 
incorporated all 5 exhaust ports. As the article states, after only 500 
miles the owner started to notice an exhaust leak from the manifold. After 
removal, it was foundthat 2 of the exhaust gaskets had started to leak. This 
manifold has been updated by Alan White at Autotechnik in Southhampton UK so 
that each exhaust port has its own flange instead of 1 plate for the entire 
manifold. This design allows the manifold to expand/contract as needed. This 
design now seems to be working.

The address for Hayward & Scott is

Hayward & Scott
Unit 11, Noble Square
Burnt Mills Industrial Estate
Basildon, Essex  SS13 1LS
phone: 0268 727256
fax : 0268 590772

No address was given for Autotechnik in Southhampton.

Hope this was of interest.
 -
Dave Lawson  dlawson@ball.com