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Originally Posted by MNBoxster
Hi,
Technically, you're correct. But, also realize that the Compressor on the Boxster is a variable pressure type and can be running anywhere between 5%-100% of rated output depending upon demand (Ambient Temp and desired Temp Setting).
This is to both enhance Range (MPG), and maximize Perfomance (reduced parasitic power loss). But, I think we can all assume that running the AC Top DOWN on a warm day will have it operating at, or near, 100%.
Also, remember to run your AC at least 2 min./mo. (top UP or DOWN) to circulate the Compressor Oil though the system for both the Compressor and also to delay drying out of the 'O' rings.
It's certainly true about the Sweat Sox in the Vent system though... 
Happy Motoring!... Jim'99 |
The variable load ac systems will also reduce their draw when you open the throttle fully to allow max power to the wheels. But in general, it's using up hp.
I'm not sure where the 2min/month # comes from but it probably is good for the pump seals to get some lubrication.
To prevent the bad smell from the vents, run the fans at full blast without the ac on for a couple of minutes before turning the car off. It dries the water out of the ventalation system.