<<  Since the rotary is capable of running very lean it is apparently
 > > very important to have a good ignition system.
 > > Here is a chart from Klause Savior's LSE forum at the Golden State
 > > flyin.
 > > >>

The Chrysler lean burn ignition from the 70s was just a MSD in a Chrysler
box. I use two MSD 6ALs with built in rev limiter. With the plugs gapped at
.012" we have no problems, too rich or too lean makes no difference. Don't
let one of these bite you. It will lay you out in the grass for a while. You
can weld the latch shut on your metal watch band.
Lynn E Hanover

MSD charges too much  at $131 for one 6A IMHO. So does Klause at around $800. 
We don't need the over rev protection in the 6AL as the prop load takes care of that.
I think it is not all that tough to build. Here is a schematic for a capacitor 
discharge system from Advanced Engine Tech by H. Heisler. If some of you 
electronic types would like to work up a kit with PC board I would love to buy it.
It should be able to be triggered from Tracy's EFI computer and have four
identical circuits. One for each plug for aircraft redundancy.

I am not sure what is involved with multiple discharge capacitor (MSD) ignition but
I am sure it is not all that tough to build. I think you need to charge
the capacitor (C6) quickly so it is ready to be fired again. 6000 RPM is 100 
revs per second. That is 100 ms seconds per rev or 27 usecs per degree 
of e-shaft rotation if my math is right. Firing once per degree for ten 
or twelve degrees might be a good plan.

Paul Lamar
 
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