What is the deal with Audi 5000 Turbo manifolds?

[neptunonc at yahoo.com (Neptuno)]

Brendan,
   
  Thanks for that info. It is very provable that I missread and mixed things up, but if anyone has more information on manifolds that can be adapted to a trully Junk Yard turbo set up please chime in.
   
  Rest assure that this set up will by no means suppose to rival that of the great turbo boost gurus of this list. Like say....... Dan Bubb et al. Their stuff is like butter. ANy how we are looking at 6-9 # of boost maybe 10?
   
  Thank you,
  EL Tony
   
  

Brendan Doyle <lord_verminaard@xxxxxxxxx> wrote:
          Hmm, never heard of that.  I've heard of people using the INTAKE manifold from a 10v Audi-5 for a 4-cylinder configuration, by cutting/welding off a runner.  Supposedly the I-5 manifold has better runners than any of the 4-banger versions but I would be willing to bet the difference is negligable for the amount of work needed.
   
  For the exhaust manifold side, the only I-5 manifold that would work for the 8v is the turbo manifold from a 10v I-5 Turbo, which are becoming hard to find.  The 20v I-5 turbo manifold will NOT work since it's basically a 5-cylinder version of the 16v.  You can purchase a turbo 8v manifold for less than $200 and it's ready to bolt on, with or without external wastegate provision.  I'd be willing to bet you would not be able to find an 10v Turbo manifold for less than that.  You could also use a 1.6 Turbo-diesel manifold and turbo, but you would be stuck with the T-3 turbo that came on the 1.6 unless you fabricated the "trapezoid" flange into a standard T-3 flange.  But I've seen the 1.6 T-3's take an insane amount of abuse- i.e. 30 lbs of boost on a 1.9 TDI.  Not remotely efficient that way but they can take it.... for a little while.  :P

  Brendan
   
   
  ----- Original Message ----
From: Neptuno <neptunonc@xxxxxxxxx>
To: Scirocco-L <scirocco-l@xxxxxxxxxxxx>
Sent: Friday, July 20, 2007 10:37:06 AM
Subject: What is the deal with Audi 5000 Turbo manifolds?

  Hello list.....I was looking at response either here or at vortex. I think the response was to a question about what type of manifolds can be used to place a turbo on an 8v engine.
   
  What I know about this manifold is that the Audi 5 is a 5cylinder and that one of the runners is cut off and either welded or made into a provision for a waste gate (this is where I am not clear). How is this done? What does it look like?
   
  Can someone tell us more about this application/modification? Provide pictures or written accounts of such, and reliability of this modification?
   
  Thank you,
  El Tony

       
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