Nate (ETKA+Scumbag)

I am thinking of adding an insulation wrap or cover to as much of the low side as I can access. I figure the more heat I keep off of the low side, the better cooling I'll get. In case I have the sides reversed, I'm referring to the side that carries the cold refrigerant into the cab.

Telling the lines apart is pretty easy considering the cold side is always covered in a thin layer of frost when operating.

4Driver4

The line that you see sweating under the hood is the low side. It's carrying the refrigerant back to the compressor. The smaller line that isn't sweating is carrying refrigerant to the evaporator inside the car. This refigerant (on the way into the car to provide cool air) is at or above ambient temp. Wrapping this line is not helpful since you might be trapping heat that would normally escape.

I guess you could wrap the low side to keep its temp as low as possible as it returns to the compressor. This (theoretically) would result in better compression and/or a cooler exit temp from the compressor.

ModifiedA4

the way the a/c should work, is that the compressed refrigerant is warm going to the heat exchanger (radiator) then TO the cabin. there should be a nozzle and right after that, the core. cooler refrigerant then returns to the compressor.

ModifiedA4

hah, you beat me to it by <60secs.

RKA

And he typed more...he wins.

ModifiedA4

*hands RKA a turkey*