I put together my ghetto phase change direct die system using a condensor from a bottled water dispenser...it was about 14" wide x 3' long,so I just started folding the thing up. I had to cut the little grid or cross pieces to make it compact down,but it ended up being 14" x 6". Folded rather nicely considering its steel 3/16" tube.
I hooked up a bigger condensor ,one with 3/8 tube and I didn't like it...i beleive the bigger coil had problems with trapping liquid and oil. The small ID condensor allows everything to be pushed through even though it makes 30 turns from inlet to outlet.
As far as cap tube goes....its not that critical for what i did,my project was more of a self-satisfaction thing. I used any where from 6' to 9' and even went as far as cutting and splicing cap tube together to add or remove lengths.Look for a kit that has a dryer and tube together ...its called a "KAP KIT".I found several on ebay.
My unit gets -40 unloaded 2-3 f loaded measured on the backside of the CPU with a probe epoxied behind the die.Its an old 1333 Tbird running @1600 so it runs warm.I'm using BBQ 12-a..lol aka propane.
Another thing I did was to use R134A retrofit fittings for cars on my system so that my gauges would just snap on for monitering and charging..I couldn't seem to find any braze on R12 shrader fittings any where.
Most expensive "must have " item will be a good vacuum pump...but I found mine at a pawnshop for $85.00. If you don't properly evaucuate, tiny ice balls will clog the cap tube and give you fits.
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dirt rules
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