Ok, here is a heat stacking question......
On the 99+ SuperDuty trucks 7.3 and 6.0, have a similar stack as you three.....
My 6.0 has the transmission cooler (which is as big as the radiator in some vehicles), the A/C Condenser, the CAC (which is much larger than the CX Racing or Hypermax CAC for the IDI) and finally the engine coolant radiator is last/closest to the fan. I’ve not seen the complaints of the PSD’s shedding heat like the IDI’s with a very similar cooling stack.
I know the IDI puts a lot of heat into the coolant due to the prechambers in the head, where more heat is blown out through the exhaust on the PSD. But on the other hand, a stock 6.0 puts a ton of heat in the coolant from the EGR Cooler.
So, what is causing the difference? The radiators are similar in size, both have a mechanical fan and belt driven water pump. I don’t think the frontal exposure is much different between the years. Even if the exposure is a bit more on the SD’s the coolers in front of the radiator cover more of the radiator. Mike and Elijah are putting some heat in the coolant from the turbo, but I doubt that is enough to make a huge difference. The all have a coolant based oil cooler, so that should be a push.
Is the issue heat soak in the heads, putting so much heat in the coolant? The other thing I wonder, if I was able to easily switch out, for testing purposes, Mike or Elijah’s engine (engine/turbo combination) in place of my 6.0, and use the radiator, CAC, etc that’s in my truck, would it still have a cooling issue?
I’m not trying to start the IDI vs PSD debate. I’m just wanting to see if there’s something outside of the engine itself different in the truck/engine bay/cooling system that could make that much of a difference.