MAC-11B vs MAC-11C

[David Head]

I had a good number of discussions with Scott Mockrey on this. The 11B 
is the 86 code, 11C is the 87 up. The 11B is a bit more aggressive for 
the timing and is actually a tad quicker. I test both qlcc versions when 
they first became readily available. You can put an 11B chip in a 11C 
box too. We put a chip socket in my 87 and had fun swapping and testing...

Dave C. wrote:

>What's the difference between these ?
>Are they interchangeable?
>Which vehicles came with which?
>
>Both have the same Audi part number.  I seem to remember hearing there is
>no functional difference, but would like to confirm.
>
>And BTW ...
>I tried searching the archives for the answer.  I got lots of hits for this
>frequently discussed topic, but almost all of the links do not work.
>What's up with that?
>--------------
>Dave C.
>
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