The GM HEI module was a marvelous piece of engineering, IMO. Simple,
effective, cheap. The problem for Triumph was RELIABILITY. Too much
of it! In order to maintain their reputation, they had to do
something about that.
End of rant,
Donald.
> Date: Fri, 13 Sep 2002 11:22:56 -0400
> From: "Nolan Penney" <npenney@mde.state.md.us>
>
> There was a factory update on the earlier distributors with the box
> mounted on the distributor itself (called Lucas Opex?) whereby these
> units were replaced with the later GM type (well hidden in the firewall
> box). This is from memory, so don't take it as gospel.
>
> For whatever mysterious reason, Triumph re-engineered the heck out of
> the GM ignition module system. My 1980 had the drive resistor
> installed. As well as capacitors and diodes all over the place. When I
> replaced my HEI module, I disconnected everything, running the wiring
> the way GM intended it, did not change the coil, and haven't had a
> problem in the several years that have passed.
[snip]
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