Hi Joe,
Here's a thread from 2016 where Lynn describes an MSD system. You
can search the archives & probably find the diagram.
Do be aware that if the engine starts and runs on one rotor (loss of
one system in this design), there's a risk of pretty strong torque
reversal issues.
Charlie
-------- Forwarded Message --------
It is on one of these twenty or so memory sticks. But I
will send it along. It may be in the archives as well.
Or I can draw up a new one if all else fails.
Lynn E. Hanover
Interesting,
Do you have pictures of this system?
I haven't heard of firing both plugs per
housing at the same time (most fire the trailing plugs
independently and the leading plugs simultaneously with
a waste spark cycle). This sounds pretty good,
considering only needing 2 modules instead of 3.
On Jul 4, 2016 11:45 PM,
"Lehanover" <
flyrotary@lancaironline.net>
wrote:
One thick aluminum disc mounted on the front
pulley. One iron reluctor mounted in the edge of
the disc. A length of 1/4" bolt works fine. Make
the disc the same diameter as a Mr. Gasket
degree wheel. Mount the degree wheel on the
front of the disc. Makes setting timing dead
easy.
Two pickups mounted 180 degrees apart to be
tripped by the reluctor.
One pickup fires an MSD or similar so as to
light off a double ended coil (MSD has these) or
two Blaster coils in parallel if you need the
extra weight. To fire leading and trailing plugs
in housing one together.
The second pickup fires housing two. Keep
plug wires as short as is possible.
Adjust reluctor disc so as to fire plugs at
20 to 26 degrees BTDC. Good from idle to 10,000
RPM and 250 HP. Used on racing engines for
years. Use NGK 11.5 heat range plugs gapped at
.010".
Non turbo engines only. Ignition timing is so
accurate that the engine appears to be not
running when a timing light is used.
Lynn E. Hanover
Tracy
I'm wanting to use a carbureted
Renesis for my build. Eliminating both
the fuel injection system and the
emissions system, I have no need to keep
the stock ECM. What would be the easiest
ignition system to use? I'm thinking a
hall effect crank angle sensor feeding
an MSD 6A/Crane Fireball Hi6/similar low
cost unit and three coils: one for each
trailing plug and one for both leading
plugs (leading plugs fire a waste spark
similar to the 2nd and 3rd generation
RX7s).
Would this be a matter of simply
installing a universal aftermarket crank
trigger kit and having the sensors
trigger an ignition module? Would I need
one or three ignition modules to achieve
this?
Many thanks,
Chad.