What kind of information can EGT monitoring provide?
Well, first off, absolute exhaust temperature is never a bad thing to keep an eye on as temps that get too high can damage engine components, particularly exhaust valves and turbochargers. Secondly by reading the EGTs on all of the exhaust ports of your engine you’ll be able to compare the temps of each, and that can provide valuable information such as a window into your cylinder-to-cylinder air/fuel distribution so you’ll know if one cylinder is running leaner than others and you can do something about it before if causes problems.
