Quote:
Originally Posted by airedale2
Im shooting for 25-28 on the low side, but will keep 35 in mind. Thanks for the input. Will f/u with results when more product comes in. Wish i could source some locally. Want to stay away from the stove top stuff.
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If 134a were not so cheap and easily obtained, I may have attempted to convert my system to HCs. But we all know how well 134a works in old cars. If you change the condenser to a PF style, it helps a lot. But that's a lot harder than just bolting the part into the car.
Look at the pressure-temperature chart. You want the low-side pressure to reflect just above 32F. Otherwise you will be cycling your compressor too much due to a too-cold evaporator.