That's what I figured. Also, when that stat is opening at 160 degrees, I doubt it will ever shut again during that drive cycle. The system is not letting the coolant stay in the radiator long enough to release the heat(not that you have an overheating problem) I'd go with a new stat, see where you are at and then start looking at other components if you think you have an issue, ie. fan/clutch/radiator/timing. Also, did you put that 160 in, or did you get the car with it?
exactly! that Tstat doesnt make water colder...it just releases the water at a set temperature...it doesnt mean it stays that temp.....some people take e Tstat out thinking it will cool better...it runs too fast then...if you take a Tstat out install a washer with a hole about the size of open Tstat so it slows down, have time to cool...
