Another engine running warm; maybe
This past Sunday, I took my '71 GTO to a car show about 15 miles away. Sunday it was sunny, low humidity and about 75 degrees. Maybe a tad warmer. I have a 180 thermostat in the engine and it took about 8-10 miles before it reached that temp. Pretty much flat road and about 45 mph; 2200 rpm's. I got on the interstate and ran it to 60 mph; about 3000 rpm's. Had to or I would get run over. Temp. rose to about 195. Then hit a steep, long hill of about 3 miles. Temp. rose to slightly less then 210. Got off and went down hill for a distance to the event. Temp. went down to 195. Returned home the same route with the same results. Do these temps. sound about correct for the conditions?? I have a Cold Case aluminum radiator with 2 1" rows of tubes, shroud, 7 blade clutch fan, TH400 trans. with 3.55 gears, water pump divider plate was worked on, engine runs well and seems to be tuned properly with 14 degrees of initial advance timing. This is my fourth GTO and I could never get any of them to run around the thermostat number. Not sure if it's just bad luck or I'm doing something wrong. This engine will take a distance to warm up and will stay at 180 for a brief period of time, until meeting with a demand. It likes the 195 temp. a lot. Doesn't return to 180 too often. I would like it to run around the 180 temp. but not sure this is possible. Once it reaches 195, at about 45-50 mph, it will run all day at that temp., without other circumstances. Also, I know it's a 180 thermostat. If this temp. for the conditions sounds correct, then there is nothing to fix. Just looking for some advice or suggestions. BTW, the engine has never run hot enough to boil over while running. I have returned home with it after a ride and in the morning, I saw it puked out some fluid. I refilled it and this happened a few times until I realized I had too much fluid in it and it was only seeking the level it was happy at. Hasn't happened again. Thanks everyone.
I think I posted this in the wrong section. Sorry. If someone could move this to the proper section, I'd appreciate it. Thanks.