AC system

Discussion in 'General Subaru Discussion' started by kickin_81, Jun 28, 2005.

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  1. kickin_81
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    kickin_81 Well-Known Member

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    Per my scangauge, I don't lose any MPG when I turn on the AC when I'm cruising. When at 65 MPH my MPG reading barely drops... two-tenths of a MPG at most.

    Is it because I'm already making power at mid RPM that a slight increase in drivetrain loss doesn't consume more fuel?
     
    kickin_81, Jun 28, 2005
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  2. Zola
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    Zola Well-Known Member

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    What is this scangauge you talk about lately and how do we know it's accurate? Also, when you are cruising you are in closed loop fueling mode, meaning your ECU is targeting a stoich AFR no matter what.
     
    Zola, Jun 28, 2005
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  3. AWDimprezaL
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    AWDimprezaL has more posts than you

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    the only thing i know about this "scangauge" is that its ridiculously huge and ugly :p but fong is in love with it
     
    AWDimprezaL, Jun 28, 2005
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  4. kickin_81
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    kickin_81 Well-Known Member

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    You can find it here: http://www.scangauge.com/ I use it everyday, so I've been monitoring the numbers at every incline and load increase. Because I own it and I like what it does, I'm gonna be supportive of it. I'm not advertising for them; I was just curious what it read from my ECU.
     
    kickin_81, Jun 28, 2005
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  5. WRX1
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    WRX1 _ Staff Member

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    you should try the same experiment but with the ac off and all your windows down. That will show you how much harder your car has to work due to the increased drag.

    Russ
     
    WRX1, Jun 28, 2005
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  6. kickin_81
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    kickin_81 Well-Known Member

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    I'll try that, but I'll need to find a nice stretch of flat road to do it on. Any incline or decline skews the reading by changing the load to the engine.
     
    kickin_81, Jun 28, 2005
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  7. hercules
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    hercules New Member

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    :idea: hmmm...sounds like a cool ideal fong....ima get me one of those or i should say maybe i can take a trip to your house and use my ninja skillz to dissapear your scangauge and make it apear in my ride because i think i need it more then you :idea:
     
    hercules, Jul 2, 2005
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  8. AWDimprezaL
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    AWDimprezaL has more posts than you

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    you farted
     
    AWDimprezaL, Jul 2, 2005
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  9. kickin_81
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    kickin_81 Well-Known Member

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    I'll be nice and let you try it on your hot rod. I'll warn you now, Tbone almost crashed his car toying with this thing when he was driving. :lol:
     
    kickin_81, Jul 2, 2005
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  10. hercules
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    hercules New Member

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    :lol: :lol: :lol: :lol: :lol:
     
    hercules, Jul 2, 2005
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  11. kickin_81
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    kickin_81 Well-Known Member

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    Driving with all 4 windows down will drop the MPG by ~2 MPG. I was reading ~26 MPG on the gauge and the moment I dropped all 4 windows down, I got ~24 MPG.
     
    kickin_81, Jul 7, 2005
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  12. Yang
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    Yang Well-Known Member

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    AWD dont need A/C!

    AWD= All Windows Down :p
     
    Yang, Jul 8, 2005
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