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Re: charging pressures for ac system
with the car running, depends on the type of system and the ambient temps. But low side should be between 10-50psi (cycling) high side can be anywhere from 100-450psi, although pressures over 300psi are less common (when everything is working correctly)
you want to see the system cycle, and sometimes that requires bringing the RPM's up off idle. If its a variable displacement compressor, then it won't cycle.
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life begins at 10psi of boost
Three turbo'd motorcycles and counting.
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