Originally Posted by sumfoo1
i would use an air to water intercooler core and decompress the r22 into the "water" side and have the air still run through the air side...
Interesting, hadn't thought about this approach.
Rather than running the A/C compressor side off the engine, where it's completely parasitic, how about using one of the small Hybrid/Electric car A/C units that run off the battery. Then it could truly be an on-demand system independent of the vehicle's cabin A/C.