Re: [POLL] Ignition options ~
DUI is a slightly updated GM HEI. No need to list it as a separate item unless you are talking AMC V-8 specific, in which case you will need their custom machined lower housing...
Magneto is a self powered ignition system.
It spins a permanent magnet in a coil of wire to produce the current needed to fire the cylinder.
No out side current needed to power this ignition.
A good idea (but EXPENSIVE) for a back up ignition.
Even if the battery, alternator and starter fall completely off the vehicle, if you can roll it and pop the clutch it will run.
Late model magnetos have sold state switching, Ford style pick up coils, and the wide for style caps.
VERY powerful! Over 44 primary amps, 2 secondary amps, 45,000 volts to the plug wires, and continuous spark durations for 26 crank degrees!
Very expensive! (around a grand).
Airplane mags and old tractor mags work on the same principle, but not nearly as powerful as the mags used by the top fuel and funny car guys..
there is also the old 'buzz box' ignitions...
Where all the spark plugs are fired continuously...
The first one to find fuel... Wins!
Obviously, no advance or retard with these ignition systems!
The potential for the cylinder to fire as soon as the intake stroke started was VERY possible!
(good at kicking back and breaking arms, faces ect. with the hand crank...)
Lot's of 'Model T's out there with them!
I used to love playing with them when I was a kid. You could build the 'Jacobs ladder' where the arc climbs the conductors (like in the old mad scientist movies!) and a ton of other stuff, like directional flow ion generators (ion or 'electron' guns), and all sorts of cool high voltage toys.