Ask HN: Is anyone doing ML car tuning?

Maybe. I think there's probably a lot of external variables that are being weighed that would take just as long to plug in as to just tweak the numbers as you go. Probably the biggest benefit would be some sort of connected network collecting the mod and dyno data to give builders suggestions of the "optimal" mods and tunes for their car. I say "optimal" because the end goals can be different depending on the application, and longevity isn't easily captured.