Do a search for my threads, and you'll find where I asked folks to check. A few responses indicated well into the 200+ range. Inpa has my externally cooled running 170 ish. Sensitive subject, like a lot of things automotive. I did not post a how to on that; that's up to you. Somebody asked once, so i think i replied with some pictures and which cooler fit nicely between the front fan and radiator, so I'm guessing that info is still out there somewhere.