Francois St-Germain wrote:

Hi Paul, I too don't think that the pick up coil of
the crank sensor as the power to make the igniter
spark.
But if I use any coil with a transitor mounted on it
will be good. The reason is that I don't need advance
mechanisim I will use my engine  at 6500 rpm
cont. I will set the maximum power at that rpm only.
The idea of the distributor is good.
I have not seen the RX7 coils do you know if they have
the transitor mounted on?
What is the difference bettwen the leading and the
trailing coil can I use the same kind of coil?
in that case I guess it will be the leading coil and I
surely can make them spark at the same time.

Thank you Paul
Have a nice week end
Francois

They do indeed have transistors but like you said "I too don't think
that the pick up coil of the crank sensor as the power to make
the igniter spark." Tracy knows a lot more about this.

Paul Lamar

Even if you don't care about the timing you need more than the right level
to drive the stock 86 - 91 Mazda coil/igniters .  The lead module is pretty
straight forward to control but the trailing requires some odd ball
selection logic.  Not really rocket science but you will need some
electrical chops to do the job.  Lead coil is a waste spark system but trail
coils must be fired independently.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

 
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