V8 cooling ideas., Only because I have the parts! Options

[BRAVE_HELIOS]

I think I have pretty much exhausted the ways to make a mechanical Chrysler/Renegade water pump setup run as efficiently as possible.

At this time; I do notice that at idle, the engine temp creeps up but as soon as I give it throttle; the temp comes down by almost 10 degrees... it stands the reason since at higher rpm's, there is more water flow.

Now for the ideas... I have a spare aux electric water pump from my 545i. BMW uses the pump to assist in pumping coolant to the heater core. It is a small unit and I am sure the flow is low compared to the standard electric or mechanical water pump. Could I integrate this lil ol electric unit to flow a more consistent rate, even at idle? Would it interrupt the flow from the mechanical w/p?

The other item is the oil cooler that came with the engine but I have yet to install. Would this help cool the engine down and by how much?

[HalfMoon]

I think I have pretty much exhausted the ways to make a mechanical Chrysler/Renegade water pump setup run as efficiently as possible.

At this time; I do notice that at idle, the engine temp creeps up but as soon as I give it throttle; the temp comes down by almost 10 degrees... it stands the reason since at higher rpm's, there is more water flow.

Now for the ideas... I have a spare aux electric water pump from my 545i. BMW uses the pump to assist in pumping coolant to the heater core. It is a small unit and I am sure the flow is low compared to the standard electric or mechanical water pump. Could I integrate this lil ol electric unit to flow a more consistent rate, even at idle? Would it interrupt the flow from the mechanical w/p?

The other item is the oil cooler that came with the engine but I have yet to install. Would this help cool the engine down and by how much?

I'm sure you've already thought of this and or attended to it, but mine was doing the exact same thing and I came to find out I had air in my system.
It would impede flow to a point where sometimes the sensor wouldn't take an accurate read and kick on the fans. But if I bliped the throttle the temps would come down and almost immediately after, the fans would come on. I was perplexed. Actually it was Renegade themselves who advised me about the possible air problem. I installed a bleeder valve at the top part of the radiator (there was a bung mounted up there-presumably for a heat line). It took forever to really get the air totally out of the system, but I have never had either problem since. I never go over 200 now and the fans kick in exactly at 190.
Addendum-And at idle since the fans come on right at 190, my idle temp rarely goes past 192-3