[Christ]

CO2 in a cloud bar would probably work better than water. Added benefit is that you can use the CO2 for more than one thing in a circuit, so you can put a bulb in the intake tract that it will run through, do something else with it, and eventually exhaust it to atmosphere through the radiator, which will cool it more effectively than water alone.

Just an idea in case anyone wanted to pursue this further. Also, one might try replacing the thermo-switch for the fans with a lower-temp one, so that the spray happens sooner... it might help to keep temps down before they really come up.