Online Community of Zenith Builders and Flyers
I don't know if you are familiar with SDS Efi? Here is there website. They make a kit for upgrading to EFi on the O200.
Several vendors support this, but they’re on what I consider to be on the expensive side. Like $1700 per “mag”. Just chkd. Spruce has em for $1400. e-Mag.
Going to an electronic ignition on the 0-200 makes operation of the engine dependent upon the alternator and battery.
I have the C-90 on my 750. I like the fact the engine is so simple and dependable. No need for a working battery or alternator to fly you home.
i would sure like to hear any comments or reviews you may have on the p-mag, especially any performance gains.
im considering purchasing one myself.
Thanks for the correction, my mistake. I was not aware they had their own alternator, just read up on that at the Emags website.
Hi Dennis, I really appreciate your comments and insight, I will look into the P-mags as they sound like what I want in my plane. As a mechanic for John Deere, I've worked on quite a few magnetos (although not aviation mags) and have seen their weaknesses. I would rather have an electronic ignition system in my airplane and if it doesn't require a battery to fire it, so much the better.
Same here...would love to hear about performance and specifically anything that makes the mags superior to regular mags. Anecdotally I have heard that if you’re generally flying at lower altitudes there is no significant difference. Also because our planes are generally flying at lower speeds too. Would love to know for sure. Thanks
David, Jimmy and Don,
Sorry for the slow reply. I can't really give you any difference in performance figures because I never flew the engine with the original Slick mags on it. You do need to keep the drive gear from the Slicks to be remounted on the P-Mags. I can't find my original weights for the old mags compared to the P-Mags at the moment, but as I recall it was a weight savings of around 3-4 pounds for the pair. To use the automotive plugs does require the purchase of some brass inserts which will need to be modified in length to fit your individual engine. I had been using Bosch Platinum Cross-Fire plugs until Bosch stopped manufacturing them. I am now using an NGK Iridium plug, which works quite well. One of the nice things about installing the P-Mags, the engine fires up within the first 3 blades, unless I forget to switch the ignition switch on. Another thing that I have been very impressed with is E-Mags customer service. After about 100 hours or so, one of the clamp nuts on my right mag loosened up, which in turn caused the mag to malfunction. I had purchased the P-Mags more than a year before my first run-up, and clearly the damage was caused by the loose clamp nut, and the mag was definitely beyond the warranty time limits. I contacted them, told them exactly what had transpired and shipped the mag to them. They returned the mag completely rebuilt to me within a week. When I opened the box and found the invoice, I was shocked to see that there was no charge! However, when I reinstalled the mag, I replaced the clamp nuts with brass Continental exhaust flange nuts. They are about 5/8" long and a resistance fit with the same diameter and pitch as the mag clamp nuts. I have not had any more problems with the clamp nuts loosening up since, around 175 hours later at this point. And both P-Mags have been functioning flawlessly. I usually lean enough to keep my EGT's around 1450-1475, with normal cruise about 2550 rpm. I've been getting a pretty consistent fuel burn rate of about 4.8 gph.
Thanks for the comments Dennis