Running without a thermostat ok?

RedFish said
Can we assume a new radiator cap went on the new radiator ? Does oil pressure drop very low when the engine gets hot ? Oil flow does effect engine temp

Yes, new cap also. And fresh 50/50 coolant after a good flushing but that was a few months ago when I replaced the radiator. Oil pressure remains consistent as from before the original temp increases. Starts out at around 40 and drops about 5 psi when warmed up to operating temp with variations depending on rpm.

Today was overcast, actually rained a few minutes, and outdoor temps dropped down to the high 80s this afternoon. She ran at around 185-190* and never rose about 195*. I feel everything is functioning correctly.

Sorry to start all this debate :finga: My only real concern is what temp would be considered "too hot" and I should pull over and let her cool down before I damage anything. My OEM gauge starts at 120* and peaks at 250*. Most of my other older vehicles I have owned only went up to 220*. Thanks to all for the education, input and advice!