For those of you with ghetto cars, here's an idea. Take a windshield washer pump and a ton of thin hosing and string the hosing in a pattern of your choosing in front of your radiator but behind your fan. Attach the input from your pump to a gallon bucket of water stuck wherever you like. Take a hot pin and poke a string of holes in the hosing. String wiring to an on/off toggle switch inside of your car. Next time you are climbing a grade and get hot, just flip the switch. Cold water will spray all over your radiator and you'll get massive cooling.
I've known people to do this with RV engines and keep them trucking at 75mph up the cascades and rockies without a problem. Just don't use salt water.
