But with a bigger exhaust your engine is able to get rid of that much more heat. So wouldn't that affect the eot temps and the ect temps then, because how much easier the engine is able to get rid of the heat. A bigger exhaust will also lower your egt temps up to 25% so that should also help with keeping the other temps down.
You still have a thermostat in the engine cooling system that does not begin to open until 190°F (or thereabout) and THAT will regulate the coolant temp. It would not matter if you had straight 12 inch headers sticking up through the hood, your coolant temp will still be the same.
The oil temp is dependent on the coolant temp, since the oil cooler is a liquid/liquid style cooler. One half has coolant flowing through it and the other half has oil flowing through it, Engine load, high coolant temps and plugged coolant passages within the oil cooler will result in higher oil temps. Again, no size of exhaust will help this.
On the forum powerstroke nation is where I read that the bpd cooler affected ac temps. Their was a guy in Arizona that had one and he said his ac temps wouldn't get colder then about 60 degrees when he had the bpd cooler. I also read other guys that stated the same thing. But I will say I like the bpd cooler the best, but if it affects the ac temps I would lead to getting an oem or the high flow cooler.
Go back and ask them when they bought the system, and if it was a condensor mount or a bumper mount. The bumper mounts (which are no longer manufactured) had some reports of having an effect on the AC system. Their problem can easily be solved (and it stated this very thing in the installation directions they got with the system
) by overcharging the AC system with 10 ounces of refrigerant.
If you buy that piece of JUNK "high flow oil cooler," you will have some heat issues to deal with. The way they achieved "high flow" was removing a few coolant passages and a few oil passages in the stock oil cooler design. What that does is SERIOUSLY hamper heat transfer between the two fluids. Your oil temps can get hot enough that the PCM will actually defuel the engine in an attempt to keep you from melting it down.
Here is a question has anybody used the bpd cooler and tryed to put a heat shield in between the cooler and the ac condensor to prevent the cooler from heating up the condensor. That should solve any problems heating up the ac condensor and affecting the ac temps.
Wow..I can't believe that.
Placing a "heat shield" between the BPD oil cooler and the condensor is like riveting a big piece of flat metal in front of your radiator.
What do you think will happen? Not only will your AC system NOT work at all, your oil temps would be through the roof and your coolant temp would be through the roof as well. (since both of those components are in front of the radiator)