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A/C Question
Having Fords all my life I have had successful experience with maintaining my A/C charge on all my cars. From R12 to the current R134A. I like my A/C to be Cold, Cold, Cold!!! I have always charged my systems a little heavy (and I mean a very little on 134) and have had no problems keeping my 95 GT or 2000 Expedition operating at peak condition.
Now to the Roush. I know the intercooler in front will cut down on Effiency. Car has not been very cold from the first and I decided to add a 3oz can of booster. System took almost all. Definate improvement in cooling. Now for the question.
On my other cars the high side pressure will run anywhere from 300 to 400 PSI on a hot humid day. On the Roush (2007) the high side pressure never went above 150 PSI. So what have they changed now and how can I expect this A/C to perform compared to my other cars??
Follow Up - Upon driving A/C performed much better. Before adding - High side pressure cycled up and down from 80 to 150 constantly. After adding high side pressure remained more constant. End result was good but wondering about pressure difference.
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