MC-1 with MC-2 components

[Phil Payne]

Subject: MC-1 with MC-2 components

> My '90 200TQ has got an early engine (JY) with low compression & K26
> turbo (water cooled), but the injection, vacuum layout, ignition,
> computer (MAC-14), harness etc. is from an MC-2. For some very strange
> reason, the engine has got both knock sensors installed, despite being
> that old. From what I can see, both the chipped and non-chipped MC-2
> runs lower boost than the MC-1. How is this setup performance-wise
> compared to a complete MC-1 or MC-2 setup?

I would very strongly suspect that you actually have a 100% MC-2 engine with a factory-replaced block that just happens to have 'JY' stamped into it.

I know of one ur-quattro with an industrial block in it - supplied by Audi.  That particular block was intended for a generator - it has the external pre-oiler fittings.  Audi seem to have recycled lots of blocks.  If you can post the full engine number, someone can pull up the date of manufacture.



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