MAC 11b vs MAC11c

[ben swann]

Rob,

The Mac-11b and 11c are pretty much the same.  Different timing/fuel
maps and some engineering changes I assume, but once chipped with QLCC
chip, they become, I suppose a MAC-11QLCC.

You should be able to swap the ECUs, and can definately use the one
with MAC-11C/QLCC in the avant daily driver, and enjoy the power
increase!

[ My 875kTQw parts car has a MAC11c ECU with a 1.8 bar chip.
 My primary car is an 86 5xTQw with a MAC11b ECU.

I'm told the chip is compatible with all MAC11 ECUs.

 Question is this:  Can I just swap ECUs, or must I move the chip from
the 87ECU to the 86 ECU?

  Rob Deis                  "Let the people know beforehand what the law
  MiB3347                      is and what they are to expect."
  rdeis at io.com                              -- 18th Congress, Rec. 75]