HeySoos

Has anyone ever installed a turbo on a 1988 80 with the 2.0. I was thinking about doing it and have an engine from a 1984 5000 turbo. If it's not possible without lots of custom work, how hard is it to put the whole engine in it. I heard that it will fit right in without a whole lot of modifications, but not from a very reliable source.

Jim

First, if you are in a state that has emissions laws, most will fail you automatically for putting an older engine into a newer car (1988 engine into 1984 car is OK, your way is not.)
Second, nothing will "drop right in" There will always be some fabrication/sourcing of random parts needed.
Third, if you are not REALLY handy, don't try it. This is not for the casual do-it-yourselfer.
Fourth, an Audi turbo engine from 1984 is fairly primitive technology. Unless this engine has a documented very low mileage/extremely good service record, it will be a big pain even if you do get it going. If the engine has been sitting on a shelf for a number of years, the seals have probably dried out, which will cause other issues once installed.
Fifth, any way you look at it, you're probably better off selling your car and buying a newer or bigger engined Audi. I would think that any of the 20v 5cylinder 90's woulddmake you fairly happy. Power output is about the same as an '84 Turbo.

I don't mean to rain on your parade, but what you are proposing is NOT that easy.
Jim
93S4