Same concept (magnetic reluctor) as Electroair, which uses a 60 tooth wheel. This one is for Ford EDIS control, 36 tooth, different electronics. A flying magnet with a Hall effect pickup is more common today, more accurate (square wave ON-OFF if IIRC), not that the difference matters at only 2700 RPM. Either type would be fundamentally the same in terms of machining.
Reliability is in the details, both mechanical and electrical. For example, the Amphenol AT/Deutsch DT wire connectors are not cheap, but the whole system depends on them. Connectors deserve as much attention as the triggers and computers. The homebuilt community often does a poor job with electrical details. I suspect self-inflicted failure is the largest risk in a swap to EI.
Originally Posted by Chkaharyer99
It somewhat resembles a B&C SD 8 Alternator. I wonder what those look like under the bell cover. Seems like it (B&C alt) could do double duty and do the crank position sensor job aside from generating electrons.
Wire coils on ferrous cores. The bell is a flying magnet. There are plenty of ignitions which combine the generator and ignition functions with a similar layout, Rotax for example. The vacuum pump/SD8 drive pad is 1.3:1 ratio, while the mag drive is 1:1, so the generator part would need to be re-engineered a bit to produce suitable output at a lower RPM.