Drew M20E

When I posted this, the intent was not to ruffle feathers or begin arguments. It was to see what information could be ascertained from a large group of knowable people. I fully comprehend the differences between certified and experimental. The lycoming SI does pertain to their version of Surefly, I get that, it was the fact that they suggest a minor alteration for it is what got my attention. My specific TCDS does not specify ignition type and along with the FAA AC 23-27 for vintage aircraft I was not sure if there was room for a possible IA decision instead of the field approval route. As far as the park plug issue, I would have looked into New Horizons to see if one could be fabricated to accept aircraft plugs. I do appreciate everyone's feedback.

I know I am going to get abused for even starting this thread but here is goes. I am getting ready to replace my left bendix magneto and shower of sparks system, 1966 E model. I know the STC routes that I can take but after reviewing my model specific TCDS and lycomings newest service Service Instruction SI1569B, has anyone looked into the possibility of installing the EMAG P Model as a minor alteration under IA approval? Before anyone asks why, I believe having a built in alternator is a huge advantage over battery backup for EIS. Please be gentle.

I just did this conversion on my E model. Feel free to ask me any questions directly if you need assistance. I ran all new wiring for the entire system.

Good morning Mike, I am based in Hopkinsville at HVC. Just outside Ft. Campbell.