Got the TIT probe (EGT) in the mail yesterday and swapped in the new "test pipe" with the port I fabricated for the probe. Got everything hooked up and did a 1500' hard pull up the 6% grade near us and only got 622 degrees, which I thought was pretty interesting until I realized that I had forgotten to include the C to F conversion in the code. Dohh...
With everything now working reliably I'm prepared to call the project complete... of course, everyone knows that no project is ever really complete
. I may still include a vertical card compass at some time in the future, and I've got some ideas for some other gauge screens for the library, but that will be another project...
I won't be publishing code for the project, but if someone is interested in tackling a similar project, I'm happy to share notes and experiences and code snippets off line.