ScubaSteve178
Member
You could very well be right. But there are a number of stories/videos where temps runaway and lead to overheating past 250 degrees. Not just the hemi, GM has overheated on TFL and the Ford EB too.
Basically if we're pulling less than GCWR up any road in North America in the middle of summer, I still expect my truck to do so without overheating. The fact that it stops around 250 is more a result of "running out of hill" than it is anything else. In other words, the cooling can't keep up and the only reason it gets back under control is because the load goes down.
Maybe I'm expecting too much? But I definitely prefer more cooling.
Well...I mean...overheating is always an indicator of something not working properly, or being worked harder than it's designed to.
When it comes to overheating, regardless of what thermostat you put in the engine, once the target temp of the thermostat is reached, it opens up fully and is no longer any more of a restriction than any other thermostat. Then it becomes a matter of whether the rest of the cooling system is up to the task, ie: the radiator and fans...and I don't know about you, but radiators nowadays are also much better, and usually have a cooling capacity beyond what the intended use would require.
More to your point of being under GCWR, if you haven't seen the temps exceed what is considered normal, I don't know what makes you believe they necessarily would.