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If you can screw up connecting the low side fitting on a retro'ed 134 car, you shouldn't be messing with the system.
The low side has a fat hose/line, the high side hose/line is thin. The hose may be the same size, but the metal line will not. The big fitting for 134 is high, small is low. Always charge on the low side. The cheapo guage at the local parts store won't sell you the wrong size.
For 134 in Texas on a Porsche (works on a 944) try 82.5 to 83% of the recommended charge for R12. Ymmv because you won't be vacuuming the system down, and repairing leaks, long lines from the back, yada, yada....
Let me know if I can help. Ditto what Tim had to say. A fan to keep the condenser cooler in this heat will most definately help.
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83 944
91 FJ80
84 Ram Charger (now gone)
Last edited by mattdavis11; 06-12-2008 at 07:19 PM..
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