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I would like to ask the good people of MooneySpace for suggestions on rearranging the panel in my M20K 231 in a cost conscious way, as well as help on deciding on a engine monitor. Any other hints for now and for the future are also most welcome. By "cost conscious" I don't necessarily mean "cheapest possible", rather "inexpensive but sensible". Work will likely be outsourced to a shop, a FAA A&P/IA is a rare sight at EPKP, one that would sign off my self-install even more so. I currently have standard analog / vacuum instruments as pictured below; in the avionics rack: KMA24, GNS430W, KY197, KNS80, ADF; in the right panel: a FT101 fuel totalizer, the adjustment panel for the remote compass for the HSI, a WX950 stormscope, TIT, ELT, XPDR and a void. The AP is a KFC200, which works well but is lacking, as far as I can tell, GPSS. Everything works and I see no signs of something wanting to fail. My primary goal for now is to install an engine monitor. I do want a "primary replacement" unit, since the cost difference vs the non-primary units is likely close to fixing whatever gauge breaks first, and I want the recording of as many parameters as I can get. I do not plan on removing the original gauges at this time. I also need an intercom. I don't think I can afford to replace the KMA with a modern unit, since it would probably mean major rewiring. So a Telex PC4 or similar will most likely go above the AP annunciator panel. Hooking it to the KMA should be simple enough. In the future I do want to replace things that break with modern devices, if cost is not prohibitive and compatible with whatever remains, but future-proofing is not a primary requirement at this time, so let's not get too carried away. Think more G5 (if it becomes a KI256 replacement) or Aspen, not G500. GFC500 only when the KFC200 breaks beyond economic repair (hoping never...). For the immediate task at hand - an engine monitor - I am thinking either a CGR30P/C combo (where the ADF indicator and the electric AI are) or a EDM900 (landscape across ADF and VOR, which gets moved to where the AI is). When I try hard enough, I can imagine a MVP50 or a EDM930 in the right panel, but it is more rearranging of stuff and I'm not convinced that the ergonomics will work. This is a stock M20K, with a GB1, so I expect it to need fairly continuous tweaking of the knobs. I really don't see them in the avionics rack, I want to keep the KNS80 for now, and moving it, if even possible, is likely a major PITA. I have, briefly, considered using a Dynon HDX / Garmin G3X / G500 as just engine monitors that I can expand into full glass cockpits later, but as others here proved, they won't really work in that capacity on a budget, and I am not ready to go "all in". Thank you all in advance!

I am putting an engine monitor in my Cessna 340 this summer. I recently put an EI CGR-P in my Mooney and am pleased with it. Is the new EI MVP any better or just newer? For those that have a CGR is the 3rd instrument, the "C" worth the extra money as part of the package? I know of the Garmin txi series and it didn't seem any better to me. Are there any new or upcoming engine monitors that might be better. JPI always makes a nice one but for a twin they appear cost-prohibitive to me. Thanks Jeff Allen

Cleaning up here. No reasonable offer refused. I have an overhauled fuel probe p/n 7740-118, original 6 pack cluster out of a 62C(oil leaked internally, other than that looks great, repairable or parts), oil temp sensor and plug, 2)12v NULITE light bezels (circle w/ no cutouts), NIB voltage regulator (electro delta VR300-14-50), and original MP/FP and Tachometer from a 62C, both in excellent shape,

I am selling my UBG-16 (Ultimate Bar Graph Engine Analyzer) that was removed when from my E when my MVP-50 was installed. These are sold on Spruce as well as direct by EI. This is a TSO part and you send it to EI who will check it out and then reset it to the parameters of your Mooney for a fee (used to be $125). This box is EXTREMELY well-documented on the web, you can download it all and read--operating, installation, etc. Call EI and chat, they are super to work with. Photos are on Flickr here. UBG-16-8 • S/N055326 FM-GYRO Module (Vacuum Pressure) FM-RPM module (RPM) FM-OP module (oil pressure) MUX-8A module ("Black Box" data recorder to DL data to PC or upload to "Savvyanalysis") EGT/CHT sensors not included—I kept the originals for the MVP-50, this way you get all new $1,500.00 (1.5 AMU)