bartamos,
The issue as I see it, is that very little coolant,if any at all is going to the radiator to be cooled. The thermostat is 180*. I personally tested an verified that it opens at 175ish and is fully open at 185*. It wasn’t open at 160*.
One possibility is that my sending unit isn’t reading correctly (reads lower than actual).
One possible solution would be to install a different thermostat (190* maybe).