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Interfacing the Trip Computer to the V-8

This is the current schematic for Mark Chiampi's trip computer interface. Mark is working on it and has allowed me to post it for comment. Please be aware that this is not a fully functional circuit and that it is still under development and being tested.

The R1 and R2 seem to like to be similar in value. Like 1K and
1K or 100K and 100K. It's weird.

It has to do with the way the timer chip charges and discharges. C1 is
the basic frequency for the osc. and R1 and R2 control pulse width and
separation. The trick is to come up with the proper values (and
resolution) that the Jaguar circutry can handle. If it's too high/low a
resolution or frequency the Trip Computer freaks out.

I've been working by trial and error. Once we know the proper values,
then we search for a pot. to shove on the engine.

Mark's blow-by-blow conversion story, includes detail on this circuit...
Back to the Jag Conversions Page...

Editors Note: Mark has an updated version, which is coming soon!!


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