Page 1 of 6 123 ... LastLast
Results 1 to 10 of 53

Thread: Warm Air Intake

Hybrid View

  1. #1
    Senior Member fifteenwindow's Avatar
    Join Date
    Oct 2013
    Location
    Madison, WI
    Country
    United States
    Posts
    216
    Thanks
    140
    Thanked 82 Times in 57 Posts

    Warm Air Intake

    Last week I installed a crude WAI. Its a double-walled section of 4 inch dryer duct, wrapped in the reflective backing from a piece of duct insulation. It runs from the intake snout to the radiator.

    I tried running it back to the exhaust manifold at the rear of the engine, but I didn't have a long enough piece of ducting to get that far.

    With the wai running to the radiator, I don't see any intake air heat until the coolant temps reach 195 F and the thermostat opens. This weekend I was driving in 13 degrees F, and my intake air temps stayed at 90 F traveling at 60mph.





    I plan to insulate the rest of the intake snout and airbox when I find more material.
    Attached Images Attached Images   
    Last edited by fifteenwindow; 03-06-2014 at 02:07 AM.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage DE 1.2 manual: 53.1 mpg (US) ... 22.6 km/L ... 4.4 L/100 km ... 63.8 mpg (Imp)


  2. The Following 2 Users Say Thank You to fifteenwindow For This Useful Post:

    3dplane (12-10-2013),MetroMPG (11-27-2017)

  3. #2
    Senior Member
    Join Date
    May 2013
    Location
    california
    Country
    United States
    Posts
    250
    Garage empty: add car
    Thanks
    7
    Thanked 11 Times in 10 Posts
    good job, how does that snorkle appear to be attached to the air box?

  4. #3
    Administrator Daox's Avatar
    Join Date
    Jan 2013
    Location
    Germantown, WI
    Country
    United States
    Posts
    3,225
    Thanks
    1,379
    Thanked 697 Times in 437 Posts
    Looks interesting. You'll have to let us know if you notice any benefit from it.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 automatic: 49.0 mpg (US) ... 20.8 km/L ... 4.8 L/100 km ... 58.8 mpg (Imp)


  5. #4
    Mitsubishi Technician live4redline's Avatar
    Join Date
    Jun 2013
    Location
    Richmond, VA, USA
    Country
    United States
    Posts
    189
    Thanks
    4
    Thanked 71 Times in 39 Posts
    Edit.... This will be just for sub-temperature conditions right?

    For a more permanent fixture you could always use a water to air "intercooler" with the water routed from the throttle body and back as its one of your better sources of early heat.
    Last edited by live4redline; 12-10-2013 at 06:49 PM.
    Daily: 2017 Mirage G4 SE - Not Boosted Yet!

    Current Project: Working on legitimate Mirage Tuning
    .

  6. #5
    Moderator Eggman's Avatar
    Join Date
    Sep 2015
    Location
    Ohio ☼
    Country
    United States
    Posts
    3,408
    Thanks
    2,263
    Thanked 824 Times in 616 Posts
    Quote Originally Posted by live4redline View Post
    For a more permanent fixture you could always use a water to air "intercooler" with the water routed from the throttle body and back as its one of your better sources of early heat.
    Intriguing. I kinda like this idea, especially for cold weather operation. There should be a way to control the temperature.

    Hey live4redline - any suggestions on recommended equipment?

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 50.0 mpg (US) ... 21.2 km/L ... 4.7 L/100 km ... 60.0 mpg (Imp)


  7. #6
    Senior Member
    Join Date
    Oct 2016
    Location
    ab
    Country
    Canada
    Posts
    489
    Garage empty: add car
    Thanks
    158
    Thanked 283 Times in 164 Posts
    Quote Originally Posted by Eggman View Post
    There should be a way to control the temperature.

    any suggestions on recommended equipment?
    I'm not sure if this has been mentioned yet... To control the temperature you could try a valve like this Name:  0019755_cable-operated-15mm-58-brass-heater-valve.jpeg
Views: 25
Size:  33.6 KB
    And control it with a simple heater control dial like this Name:  20090412_knob4.jpg
Views: 25
Size:  26.3 KBName:  20090412_knob2.jpg
Views: 25
Size:  29.1 KB. Or get real fancy and try to make it all automatic by a temperature switch and electric heater valve.

  8. The Following User Says Thank You to Fummins For This Useful Post:

    Eggman (11-28-2017)

  9. #7
    Senior Member fifteenwindow's Avatar
    Join Date
    Oct 2013
    Location
    Madison, WI
    Country
    United States
    Posts
    216
    Thanks
    140
    Thanked 82 Times in 57 Posts
    how does that snorkle appear to be attached to the air box?
    I didn't remove it so I'm not certain, but it seems to be clipped on, with a sleeve going into the airbox, and its attached to the (resonator?) box behind it, which is bolted on.
    Last edited by fifteenwindow; 12-18-2013 at 12:57 PM.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage DE 1.2 manual: 53.1 mpg (US) ... 22.6 km/L ... 4.4 L/100 km ... 63.8 mpg (Imp)


  10. #8
    Senior Member zefke's Avatar
    Join Date
    Dec 2013
    Location
    Netherlands
    Country
    Netherlands
    Posts
    151
    Thanks
    17
    Thanked 21 Times in 10 Posts
    Nice installation, but what is the benefit from having warm air coming into your air inlet?

        __________________________________________

        click to view fuel log View my fuel log 2013 Spacestar Invite 1.0 manual: 49.2 mpg (US) ... 20.9 km/L ... 4.8 L/100 km ... 59.0 mpg (Imp)


  11. #9
    Carmageddon m4v3r1ck's Avatar
    Join Date
    Sep 2013
    Location
    The Hague
    Country
    Netherlands
    Posts
    1,347
    Thanks
    74
    Thanked 94 Times in 75 Posts
    Warm air intake is known to burn easier than cold air. So if the air that getting into your engine is already warm, it will burn faster and better which may also reduce the fuel consumption.
    There's also aftermarket warm air intake with heating elements.

        __________________________________________

        click to view fuel log View my fuel log 2013 Mirage 1.0 manual: 47.5 mpg (US) ... 20.2 km/L ... 5.0 L/100 km ... 57.0 mpg (Imp)


  12. #10
    Senior Member fifteenwindow's Avatar
    Join Date
    Oct 2013
    Location
    Madison, WI
    Country
    United States
    Posts
    216
    Thanks
    140
    Thanked 82 Times in 57 Posts
    And here's more on the idea behind a WAI, via Wikipedia:

    Warmer air is less dense, and thus contains less oxygen to burn fuel in. The car's ECU compensates by opening the throttle wider to admit more air. This, in turn, decreases the resistance the engine must overcome to suck air in. The net effect is for the engine to intake the same amount of oxygen (and thus burn the same amount of fuel, producing the same power) but with less pumping losses, allowing for a gain in fuel economy, at the expense of top-end power.

    See it here: http://en.wikipedia.org/wiki/Warm_air_intake

    ecomodder.com and gassavers.org have more discussions on this topic.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage DE 1.2 manual: 53.1 mpg (US) ... 22.6 km/L ... 4.4 L/100 km ... 63.8 mpg (Imp)


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •