To Chad on the OPUS

[Jeff Strom <jstrom@msdignition.com>]

Chad had written,
 I saw your post on the MSD system in the old V-12 Jag.  If memory
serves the rotor mag triggers the ECU for the FI,so it could not be
changed.


Chad:
I think that there are two triggers in the distributor one triggers the
ignition and the lower unit triggers the fuel injection.  Maybe someone
out there can enlighten us on the truth of this,  I have not seen a
distributor in some years now.  The second trigger is the reason why I
can not easily replace the distributor.  But that has never stopped us
before.  Given that I know what the signals look like from each trigger
I can replicate them.  I made a really trick distributor for a 6 cyl MG
some time ago.  We built a minuiture crank trigger wheel ( a disk with
magnets in it) and installed it into the stock distributor.  Used an
external timing computer for the advance curve.  That timing was rock
steady all the way through the RPM band...trick part if I say so
myself..
I know of a few folks who wished to remove the OPUS system for the car
due to replacement cost.  So I'm open to try if I can get the parts to
work with.
 Jeff
62mk2
58 mk1 (needs a home)
74 midget
+

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