Well for what it's worth, I'll say it before someone else does.....220 ain't over heating. However, I'm in total agreement with you that it's too hot for "my" taste and I wouldn't like it either. I also agree with your assessment that it will reach the point of no return much quicker running that hot. "Somewhere" above 200 most all engines will get to the point where they just "give up" and start to get hotter and hotter. The hotter they run, the less cushion there is before they really over heat. That's why I like mine running as cool as possible. People will scoff saying you'll get extra engine wear running to cool, blah blah blah, but the simple fact is if you TUNE the engine TO cooler temperatures, it will be fine, run better and last longer than one running hotter. It's just an undeniable fact, that some people cannot understand. Forgive me for being too lazy to back read, but what are the dimensions on your radiator core? Width, height and thickness?
