Chris Gardiner wrote: > I notice this meter recommends using a narrow band O2 sensor instead of the wide band type I was planning for. > > What O2 sensor are you planning to use?
This question was not directed at me, but I do have an opinion. An inexpensive ($20) narrow-band Bosch "one-wire" sensor will suffice just fine for this job. When this thing says "too rich", it really is, and when it says "too lean" (the bottom LED), you'll have already noticed a real power drop, so narrow band is fine. I like to keep mine at the point where the bottom LED is barely flashing on and off, or "just south" of that (not even visible). Wide band units and there sensors are very expensive, as was mentioned, and simply not needed for our application. I have almost 1400 hours flying behind one that looks just like this (apparently a Cyberdyne knockoff, or perhaps just "rebranded"), and I can't imagine what other information I would need from an air/fuel meter. Bosch part number is 11027. More on this is at http://www.n56ml.com/corvair/o2meter/ . 100LL eats these things every hundred hours or so, so that's another reason to go cheap... Mark Langford ML at N56ML.com http://www.n56ml.com
