You may want to review your magnet choice; (temps as low as 200 F; lose
magnet properties )

*Neodymium magnets are sensitive to temperature change and even lose magnet
properties at high temperature
*Neodymium magnets lose -0.09 ~ -0.13% of Br/°C  and can work stably under
80°C for low Hci Neodymium magnets and 150°C for high Hci Neodymium
magnets.

http://www.armsmag.com/neodymium.htm

brian gochnauer

An argument for putting it on the nose of the e-shaft
instead of the damper plate.

Paul Lamar

Seems like a lot of work to mount the generator magnets when; if
you loose power; your fuel injectors aren't going to work any
way.  Why not just generate a signal with proximity detector
over the flywheel flex plate bolts or something similar for
timing; and use system battery for CDI power instead of
generator magnets?

brian gochnauer

These stand alone ignition ideas are primarily designed
for carburetor engines where if the electronics fail the
engine does not stop. Even a low wing airplane can still
fly with a cowl sump tank. Back in the old days a thing
called a manually operated wobble pump was used to replenish
the cowl tank from the wing tanks.

Carburetor engines are at least ten times easier to tune.
They start right up and run fine. The reason is the mass
air flow sensor is  built in the form of a venturi.
It does both sensing the mass air flow and injecting
the fuel all in one simple device.

With a proper manifold and a carburetor leaning device
the fuel burn penalty is minimal. Especially with
something like a two rotor that has only two symmetrical
intake runner tubes.

Paul Lamar.