'89 200T block question

DePenning, Charles [EPM/MTN] Charles.DePenning at EmersonProcess.com
Wed May 26 12:09:51 EDT 2004


Thanks for the responses, all.    Sounds like things are not immediately
going to work out that well between the donor car ( '89 200T) and the
patient ('89 90q).  I also have at my disposal as far as engines go:  '83
5kT- 2.1L turbo.  '84 4kQ.  I wonder if there is a combination of
head/block/pistons (and rods/crank etc) from the four cars that would
assemble into a usable turbo engine, using the MC-2/MAC-14 engine management
system.  It seems like I have a lot of parts that _should_ go together in
some way, but maybe not in a practical form- example: the high-compression
90q engine with turbo induction and engine management parts from the 200t.
I know this has been discussed here before, but what experiences, if any,
has the community had with turbocharging the high-compression engines?
Seems like the boost would be very low in order to avoid massive
pre-detonation problems.  What about finding low-compression pistons for the
2.3 block (90q)?  Or putting the head from my '83 turbo on the 90q block,
and using the mc-2 manifolds and engine management.  I can't remember what
the compression is in the '83, and whether the compression is controlled
more by the piston profile or the combustion chamber volume.

As a side note, does anyone have a complete table of the engines that audi
produced over the years, code designation, precise displacement and maybe
some bore x stroke info?  I've found some partial tables, but nothing yet
that is all there.    

Thanks again folks.

Charley


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