170 Thermostat?

I beg to differ, I have a 4 core aluminum 11/16" tube radiator and two fans that pull 4,000 cfm through them. That should cool it down to 170, I would think.

It will not. It's a known fact the thermostat only controls the minimum operating temperature, not the maximum. The max temperature is controlled only by "the rest" of the cooling system. The thermostat has nothing to do "with that". That's why I said, study up on it. I wasn't being a smartass, either. It's factual information. Look it up. Read about it.