Lol...Man, I looked for an hour and didn't find a single link proving or stating it, hell I was thinking about doing a test on it myself, but I can't figure out the best way to do it.
I'm getting a new radiator soon, so I was thinking of buying a oversized radiator because it wouldn't hurt none to have one installed anyways, and doing a before and after result, but the only problem with that is (from what I have read) people have had problems with the fittings on a aftermarket oversized radiator.
Lol....This sounds crazy!