Or, maybe just a bit myopic?

Being limited to only what I know now or can remember, I am myopic. I have a card that says I am.

 

The Utube movie proves the point. I cannot test the first coil because it died already. The penalty for a failure in the first 100,000 miles of an emissions part, is it is replaced free of charge. Since all of the failures are not reported, it should be noted that the failures that are reported are the only source of data to establish anything.

 

When I worked at Western Electric we produced pieces that had to be backwards compatible for 40 years.

Watch your young engineers faces go blank on the first day when you tell them that. You start by learning what was going on 40 years back. The life expectancy of all products except fuses was 40 years. Usually just acts of God shut down phone systems. We could reproduce a complete central office from drawings with the exact original equipment up to 60 years back. The new central offices, about the size of a phone booth has to be able to dial in a call to a 1930s number one crossbar office in Sand Pile Egypt. They could modernize for faster dialing speed and less modem noise, but hey, it all still works just fine and they have no money anyway. Back in the day when your phone bill was $6.25 every month.

 

It is entirely possible to produce from available parts a damn near bulletproof ignition system. Putting electronics close to the fire of electromagnetic radiation, so you can reproduce the Charles Kettering system seems to me a poor choice for aircraft use.

 

Rotaries like a lot of ignition energy. Lighting a cigarette in a descending elevator (piston engine) is easy.

 

Lighting a cigarette while standing on top of your car a 60 MPH (a rotary engine) not as easy.

 

The plugs that Mazda gave us to race on, had a retracted tip design. (Ice cold). Both the ground electrode and the center electrode are fine wire. Nothing to mask the start of the fire ball. NGKs with a 11.5 heat range. I forgot the number. Its at home in Ohio.

 

Trigger wires are antenna looking for transmissions from the plug wires. (Cross talk) Plug wires should be inductive like those found at the Hot Rod shop. They reduce electromagnetic radiation.

 

 The aircraft engine is run harder than a racing engine. The racer is at WOT only about 70% of the time. Off the throttle for each shift up, and during hard braking. That is not the airplane case is it? WOT and load limited RPM will be the rule (once the cooling system is working).

 

Use the GM crap for the trailing plugs. You won't even notice when one dies.

 

Just another opinion. I could be wrong.

 

Lynn E. Hanover