Exhaust Manifold

I am making progress on the manifold.  I decided to go with a log style do to the limited room available.  It exits towards the front of the engine and will place the turbo at the right front corner of the car.  Since the body of the turbo is so large I had to remove the power steering reservoir bracket as well as the one for the headlight motor.  I guess that means I'm converting to fixed headlights.  I don't mind really as I was pondering that move to get rid of more weight.  I'm planning to use a full 3" exhaust from the turbo back and its looking like I will have the room.  The exhaust will sort of travel over the manifold while the wastegate pipe travels under the manifold reconnecting just above the starter.  All of the guestimations have been accurate so far.  If the success holds out I may have the time to get the manifold all assembled by the weekend. 

Audi I5 20v Turbo

Here's an important item that you will need also. An engine! We are sourcing ours from a less fortunate Audi S6. I believe that it is a 1996 vintage, but the year that you pick really depends on your personal preference. I hear that any of the I5 motors would work in this swap, it is just a matter of how you want the motor to be equipped. I personally was looking for an S4 or S6 built between 1992-1997. You'll find that S4's were built until about 1994 and then renamed S6. In the 1997-1998 time frame a different engine started being used. Before the S4/S6 series there was a Audi 200 20vt that was made in 1990 and 1991, I think. So if my dates are wrong shoot me a message and I will correct them. In this configuration there seems to be a distributor and a different intake manifold. Older than these are Audi 10vt cars which are also usable.
The reason that I chose the model I did was because it has no distributor and the intake manifold begins on the driver's side of the engine. The Audi 200 20vt has a distributor and the intake manifold begins on the passenger side of the engine. Obviously the S4/S6 power plant is a closer match to how your 944 is configured right now. I'm making the assumption that this will make all of the intercooler plumbing easier to install.