Goodbye CIS-III, the Haltech IG5 is in!

[Jim Green]

>
> I'm not sure exactly, there may be more than one way
> to do that.  If we're talking direct ignition (5
> coils)
> driven off the crank only or something, then it
> might be a "wasted spark" for each of the cylinders.
>  Not in
> the normal sense of wasted spark tho', but a single
> coil that fires twice as often as it actually has
> to.
> Unlike the two-post wasted spark coils, that fire
> two cylinders half as often.  That seems way outside
> the
> box, but maybe doable.
>
> If you mean a more traditional sense of wasted
> spark, like I've heard of people thinking of/trying
> to do for a
> 5 cylinder with only 3 or 4 coil triggers, then
> that's different.  I'm not sure how that would work,
> as you
> would somehow need to replicate a spark plug on the
> "other" end of the coil for the 5th cylinder.  I
> guess
> it's not impossible.
>
> Which form of wasted spark did you mean?  3 double
> post coils and a fake plug, or 5 coils firing twice
> as
> is necessary off the crank?  There might be some
> issues with the coils keeping up with rpms, or
> perhaps
> with having a different set of requirements for
> ignition and fuel.

If someone can figure out how to do wasted spark on
the 5cyl with one dummy plug, the Haltech would work
great.  It can be run off the pins on the starter gear
for timing, then all it needs is a syncro event like a
pin on the flywheel, or you could grind off one of the
teeth and use the "long" window as the syncro event.
Also couldn't someone build an inductive pickup like
used on timing lights to trigger the a sequential fuel
system?  If you put it on the output wire from the
coil, it would be the same as having a five window
distributer right?  Random thoughts.........

=====
Jim Green
'89 90tq 034EFI, Haltech IG5
http://www.geocities.com/jeg1976/car_home.html

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