81 Audi Coupe, Callaway edition

[David]

I have found out some potentially bad news. The current owner believes the exhaust manifold and turbo were removed and placed by a stock I5 manifold (he is not very familiar with forced induction cars and very unfamiliar with CGTs in general). The boost gauge still moves when he hits the throttle, but its like it goes from 20 in the left side to zero. It still has all the other Callaway stuff including the piggyback injector(s?). It even still has the Callaway badged intake. So, any clue how hard it would be to source the missing exhaust manifold and IHI turbo with integral wastegate? If it would be very hard to find, any thoughts on what else could be used to get this puppy back to forced induction in as close to "right" as possible? 

TIA,

Dave
> 
> From: ti at amb.org (Ti Kan)
> Date: 2004/11/30 Tue AM 05:43:35 EST
> To: duandcc_forums at cox.net (David)
> CC: quattro at audifans.com
> Subject: Re: 81 Audi Coupe, Callaway edition
> 
> David writes:
> > I may have a chance to buy an original Callaway Coupe. The owner
> > has next to no info on it. Anyone have the specs or know much about
> > them? Like what kind of turbo and how much power did they make? Other
> > than boling a turbo on the engine, what other goodies did they come with?
> 
> The Callaway turbo conversion for the type 85 used an IHI turbo with
> integral wastegate.  An intercooler is mounted horizontally under the
> car with an airscoop, and an oil cooler is added behind the grill.  The
> stock fuel injection and ignition is used without modification, but is
> augmented by a Callaway "Microfueler" electronic module that enriches
> the mixture under boost.  The A/C compressor has to be changed to a
> Sanden and relocated to clear the custom exhaust manifold and turbo.
> The oil filter is also relocated.  The Callaway kit included all the
> plumbing and hardware needed, as well as a very good installation
> manual with illustrations, but installation was not a trivial matter,
> requiring an experienced shop.  Trimming of sheet metal was required
> in some places.
> 
> The max boost is 10 psi.  The rated horsepower is 170 @ 5500 rpm and
> torque is 175 lb-ft.
> 
> VW & Porsche magazine (the previous incarnation of European Car) published
> a series of articles "Project Audi Coupe GT" in 1986.  They fitted the
> Callaway turbo kit, upgraded the suspension and wheels/tires, did a
> leather interior makeover, and added a bunch of audio and electronics
> enhancements.
> 
> The 0-60 mph acceleration, published by VW&P was 7.2 secs, compared
> to 9.3 stock.
> 
> -Ti
> -- 
> Ti Kan
> http://www.amb.org/ti
> Vorsprung durch Technik
> 
>