I have been monitoring exhaust gas temperature and exhaust gas oxygen. I liked them giving continuous readouts so much that I made a new dash which included them. I’m using an Innovate MTX-L wideband system that works a lot better than my previous narrow band setup (shown in photo). Without an oxygen meter you are blind
This time I actually planned the instrument layout, it looks better now. At the advice of a friend, I “machine turned” the aluminum but I consider it a good job for an idiot as it is slow, time consuming work and flat black paint is easier on the eyes.
