Red's temp use to fluctuate towards 190 back when I was using 50/50 water/coolant. Now that I switched over to 75/25 (distilled water / coolant) + a bottle of water wetter, the temp hovers around 180-182.
On a side note, the GTO ran 195-200 when I first drove it. Found it was running with a 160 stat. Replaced it with a 180 after I stove top tested it and used the same 75/25 formula. Now it also runs 180-182 on a warm day.
Yes, other factors have a direct affect on keeping the engine cool such as having a shroud, flushed engine block and radiator as well as a good running pump. Another item to watch out for is your lower hose collapsing due to not having a coil inside.
Just a little food for thought for those of you having overheating issues.
On a side note, the GTO ran 195-200 when I first drove it. Found it was running with a 160 stat. Replaced it with a 180 after I stove top tested it and used the same 75/25 formula. Now it also runs 180-182 on a warm day.
Yes, other factors have a direct affect on keeping the engine cool such as having a shroud, flushed engine block and radiator as well as a good running pump. Another item to watch out for is your lower hose collapsing due to not having a coil inside.
Just a little food for thought for those of you having overheating issues.