My 22RE cruised to MCR7 at 65 mph through Redding, CA at 100 degree ambient temp and was running cool, even without a fan shroud. I was very pleased with it's performance. I have Redline Water Wetter that seems to help a bit, but this situation seems like something is simply not working right.
has the engine been bored oversized?? when i bored my 22R to .060 oversize i had to go to a v6 radiator, because the stock radiator would overheat on the interstate or hwy hills
I wouldn't expect the standard Toyota design in perfect working order to be this close to not providing enough cooling? There's a lot a variables with older rigs.
