/6 running hot - what are your temperatures?

What does that tell you? What it tells me is that whatever air is coming thru the rad at lower rpm is either not at ambient, or there is not enough of it coming. Maybe the hot air is just going round and round and round........ Or if the stat was out, the water was not circulating properly.

my mechanical senses are telling me that there is just too much heat being generated by the engine. As I'm standing there measuring temps, I'm thinking "ok, radiator is showing good temps, it's pulling air through it, the lower hose is running cooler.. but It just isn't keeping up!

these are just my gut feelings. Maybe I'll make a video.