David, do you have a CHT guage on your Warrior? If you do, it would be interesting to compare to the CHT model in JSBSim's piston engine model. It's a very simple lumped capacity model, but I tuned it to stay in the green if climbing out at max rich, but to overheat if climbing out at peak power in the 70 - 90 knot range. If you could have a fly in the C172 with the CHT guage fitted (there is one about but not on the panel by default) and see how it compares at other flight regimes (if you have a real-life guage) then that would be great.
No, a CHT gauge is very rare for a four-cylinder plane with a fixed-pitch prop like the Warrior, Archer, or 172 -- even EGT gauges are not all that common.
State of the art is a JPI EDM 700 or 800. Lots of people are installing these in their planes, though I won't be able to afford one for the next couple of years, at least, after I put in my Stormscope or Strikefinder this month:
http://www.jpinstruments.com/edm_700.html
All the best,
David
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