?? Converting 4kq to 20v turbo ???

[RM]

I'm in the early phases of converting my 87 4kq to a 20 valve turbo engine.
I'm wondering if anyone on the list has done this swap personally and if so
can shed some light on the following questions...


#1 What 20v turbo engine is best to use? Is the early 200tq's and different
from a later S4?


#2 I'm not going to do any terrific swaps of the driveline other than to
update the clutch. Will a stock 20v with a chip over power the differential
and trans set-up that was original to the 4kq? I don't plan on racing, I
just want a fun daily driver.

#3 Are there any specific parts or procedures that the 20v swap will need as
opposed to installing a typical 10v turbo?

#4 As far as intercoolers go, I noticed several swaps that don't use the
factory audi unit. Any reason to this?

I'm sure I'll have a host of other questions soon, but I just need to get
the ball rolling. Thanks for any advice!!

PS. could you please CC your reply to waves at epix.net, thanks!

PSS. Anyone have a motor laying around, with harness and ECU??