spark timing measurement and recording

[Jason R. Haines]

> Who's WBEGO gives you spark along with A/F?......

The ECM (Engine Control and Monitoring, http://www.ecmco.com ) model 2400
gives AFR, spark timing, rpm and MAP. It can record the data or output it to
a PC. It is a great unit but costs $8000. To record rpm you just clip a
pickup to any spark plug wire. To get timing you need to mount a sensor to
the engine to pickup up TDC.


Jason

>
>
>
> > Has anyone used any equipment to actually measure and record ignition
> timing
> > at the engine. Accurate Technologies sells a unit to do this but it
costs
> > several thousand dollars. One of the ECM wide band meters also offers
this
> > information but it too costs several thousand dollars. I would think
with
> a
> > crank position sensor and a pickup on a spark plug wire that this would
> not
> > be that difficult to record. Any ideas on how to build such a device?
> Anyone
> > else already make something like this but at lower cost? It would be
nice
> to
> > record ignition timing along with rpm and the other normally recorded
> > variables in our data acquisition systems.
> >
>
>
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