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Old 05-08-2010, 11:14 PM   #2 (permalink)
ShadeTreeMech
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Join Date: Apr 2009
Location: Arkansas
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The Van - '97 Mercury Villager gs
90 day: 19.8 mpg (US)

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I've often thought about that very thing.

If you were to get a mechanical thermostat for a home AC unit and wire it in to the line that goes from your ac button to the compressor, it should work. the amount of amperage going from the button is usually quite small, and the home thermostats are designed for 24 v DC anyway, so it would be over spec'd for the job at hand. I've never done it myself, but there isn't a reason it wouldn't work that I'm aware of.

Make sure you use a non mercury thermostat, or else you'll be cycling the compressor on and off whenever you turn.
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Quote:
Originally Posted by jamesqf View Post
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
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