Just another update as the weather gets warmer again.
The weather has started to hit the 60s here in MN, and I still have the foam in the upper grill. Temperatures still appear fine (Scan Guage showing 208 thru 215 as the highest it gets). I have not used the AC in the car yet, so I'm sure that will cause the temps to go up even higher, and I know the AC will not work well with foam blocking its radiator.
My question is, at what point do you think it would be good to remove some of the foam? I have been telling myself if the ICE water temp gets above 220F I would start removing some of the pieces, but not all of them. What are peoples thoughts on that? Does it make sense to keep some foam in to keep the aerodynamics better, or to remove all of them for better cooling (especially for the AC)?
Check out this post. Turning on the AC actually reduces ICE temp by opening the grille shutters all the way.
I'm not comfortable letting the ICE temp go above 215. Above 220 the ICE begins to behave differently. Last weekend we drove to Wisconsin when the temp was in the 50s. The ICE temp reached 217 or 218 a few times but mostly it stayed between 205-215. I still have both grilles completely blocked. We don't anticipate using the ICE again until late April so I'm leaving the grille blocked since it doesn't have much impact when running the Energi in EV mode.