View Single Post
Old 08-07-2008, 08:48 AM   #4 (permalink)
gascort
EcoModding Apprentice
 
gascort's Avatar
 
Join Date: Jun 2008
Location: Saint Louis, MO
Posts: 235

Gascort - '93 Escort Wagon
90 day: 39.41 mpg (US)
Quote:
Originally Posted by adrive7 View Post
Something I have wondered about this is Max A/C means the compressor does not work as hard, but it requires another fan to kick on (which is considerably louder than the normal fan, but probably irrelevant) which requires a larger load on the alternator.

So, which wins out? A more frequent but intermittent A/C compressor or a constant draw fan? I don't know the answer.
Coyote X is correct; the same fan is running, but with an interior intake open. This makes it more noisy and also blows harder since there's less resistance on the fan. I bet the blower motor uses the same amount of electricity on fresh or recirculating settings.
__________________
"You laugh now at my recycled materials-ecomodded car. I laugh later when I see you at the fuel pump!"
The day will come (soon) when a Geo is worth more than a Hummer, except for scrap metal. http://www.scientificmethodfueleconomy.blogspot.com/
  Reply With Quote