[Gregski]

alright we can thumb wrestle over what I'm about to say next but I firmly believe that a well tuned engine can run with only water in the radiator and not overheat, it don't even need no fan shroud (as that is there for your safety so you don't cut your fingers off, ha ha) yes it does need a fan

so here is People's Exhibit A: water only with a 195° F thermostat and we are running too hot at 201° F

now some folks will say that ain't hot, or that's fine, well I shut it off there cause it would have probably gotten even hotter, and keep in mind this is just idling in the garage at like 650 RPM