HYDRODYNAMIC
Rock Stacker
Engine temp 230° is taken from the head which should be the hottest since it’s next to the exhaust ports.It can't actually be 210 at the inlet that's the lack of flow causing the coolant to saturate.
Internal water temp is going to be lower as it is absorbing the head heat.
210° was the water entering the radiator which makes sense as it should be lower than the head temp.