I always assumed a dyno test was mainly about showing horsepower numbers, but a mechanic friend recently told me it can also give clues about how healthy the engine is overall, which honestly surprised me a bit because I never thought of it beyond performance tuning, that got me curious so I started reading around and saw people mentioning Dyno Star Workshop (https://dynostarworkshop.com/) in a discussion about diagnostics and tuning setups, but I still don't fully understand what kind of "health" indicators you can actually see from a run, like is it just smooth power delivery or can it really point out hidden issues before something goes wrong, would be great if someone who's used it could explain what you actually learn beyond the obvious power figures.