MMZ actually has one of the better methods by using the AC compressor... There are intercoolers that have alternating odd / even pipes that run the freon (or the EPA friendly stuff) thru all the odd numbered lines and the cooling water thru the even numbered lines. The SRT leaves alot of possibilities for performance improvement in this area since it shares the engine cooling system as it's only source for cooling fluid... This cooling water temp will usually run 185 degrees +/- a few degrees... And the Charge Air Cooling System Heat Exchanger is VERY small...

First thing I would look at is a larger heat exchanger from someone like Bell and then trying to supply it with it's own isolated fluid source that isn't being pre-heated by running thru the engine cooling system... Also insulate the thin aluminum plumbing pipes that carry the fluid thru the engine compartment...