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Altair: I need a device that allows me to bitch slap someone across the internet i'd just put 4x4's name in and push the button repeatedly for an hour

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ORIGINAL: steve05ram360

turn your ac on and feel which line is cold...that's the one you want to insulate.

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ORIGINAL: cesspool
But then I also made a heater core bypass manifold.  That made a big difference in the cabin.  No warm air at the feet.  Very easy to use, kinda pricey though.  I just got done with the cold air lines, so I haven't got to test them out yet.  That's tomorrow.  Hope it helps mine as well as it did Means!

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BY: batman13
i think you can get into mine

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ORIGINAL: SumAmerican

The A/c system process: 
not 100% sure but pretty close
the basic concept is the when you compress a gas it heats up.  The opposite happens when you decompress it, it cools (think about letting air out of your bike tire).
1) the compressor compresses the freon to a hot gas.
2) the hot gas is ran threw a radiator thats close to your radiator or a part of it. (condenser)
3) its now cool gas
4) its moved threw your expansion core and decompressed to an even colder gas.  (possible liquid)
5) evap core where air is moved threw it to cool the cabin and the freon in the line is warmed
6) then returned back to the compressor
There is a Receiver Drier/Accumulator somewhere in there too..  just not sure where...  i think that it is part of the high pressure system before it hits the expansion core, But im not sure.

If ever adding a/c coolant, freon or rc134, make sure you do it to the low pressure system before the compressor.

In response to some of the earlier threads though if you insulate any of the lines you will most likely see an improvement.  Start with the skinny ones because those are the compressed ones that you would see better improvement from insulating.