I recently purchased a CGR-30P for my 1966 M20E while the Oshkosh discount was still in effect. Anyway, it is time to replace some intermittent (at best) gauges and I need help figuring out what is actually "required instruments". I can't find a copy of this "CAR3" I hear about and the TCDS found http://67m20e.com/Mooney TCDS 2A3 Rev 52 dtd 9DEC10.pdf doesn't seem to list instrument requirements. I don't believe MEL or MMEL applies so does that really just leave me with TOMATOFLAMES???
Specifically, I want to show volts, amps, OAT, and Vacuum on the second page of my CGR as "not primary" instruments. Do I need operational "primaries" for any of these gauges? To complicate the amps and volts, I have a plane power alternator STC on my Mooney. My first page will be MP, RPM, EGT, CHT, Oil press, Oil temp, Fuel Press.
Any advice on Fast Response vs Long Life on the EGT probes? If not I think I'd go for long life.
For amps, should I use existing shunt or is there a benefit to the EI ammeter shunt?
For an aircraft that did not come with fuel flow, how hard is it to install that?
Any other surprises on install or woulda-shoulda-coulda's from people who have done this already? I plan on doing as much of the install as an A&P will let me. Thanks!!!