Vehicle running warm 360 la
All that the thermostat does is set the low temp minimum.
160 sets the low temp to 160, 185 sets it to 185, etc.
Once the temp is above a particular temp the thermostat is fully open and the temperature is set by the rad, air flow, pump, pulleys, tune etc.
The cooling system is a SYSTEM, all the componants have to matched correctly to function properly.