Encyclopedia Hoonatica: Cars with NACA Ducts

Ferrari F40

Believe it or not, developing a scoop that’s effective at scooping air in without creating ridiculous amounts of drag is phenomenally difficult. It’s actually quite easy to design a scoop looking thing that barely scoops at all. You could say it sucks…but the problem is it doesn’t.
Luckily, the National Advisory Committee for Aeronautics (the predecessor to NASA) figured it out for us back in the 1940s. As the rocket/jet age took off (har, har…), the NACA duct was born from a need to pull air into jet engines without significantly disrupting the flow of passing air. Semi-ironically, NACA ducts can’t really pull in enough air to feed a jet engine, but they work great for lower-speed cooling applications.
While supersonic road going vehicles remain a Syd Meade-grade product of The Retro Future, the needs for air intake, cooling and aerodynamic slickness continue to increase. This was particularly true in the 70s, as cars went from matching artists’ conceptions of what a rocket car should be to meeting engineers’ design requirements for top speed and fuel economy. Hence, a preponderance of NACA ducts in the ’70s and ’80s.
For today’s Encyclopedia Hoonatica, simply pulling up every JC Whitney-ized Civic you can find on Google image search won’t cut it. It’s gotta be the submerged, curvy beauty that is the NACA duct, and it’s gotta be from the factory.

Just to eliminate another bit of low-hanging fruit, here’s an Espada, which The Missus refers to as “her Lambo”, as she has plans to kill me with six Italian carburetors feeding twelve cylinders sport one as a semi-practical mom-mobile some day.
As always, do please refresh the page and read previous comments so as to avoid duplicates. And here’s how to embed images in the comments.
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57 responses to “Encyclopedia Hoonatica: Cars with NACA Ducts”

  1. TurboBrick Avatar

    How about fake NACA duct from the factory?
    <img src="http://www.mach1registry.com/history/photos/p63622_image_large.jpg"&gt;

    1. Sivart_R1 Avatar

      Damn – I knew there was a Z with a NACA, but I thought for sure it was a late 80's 300zx, not early 80's 280….missed the search by *that* much…

  2. skitter Avatar

    In chronological order:
    1970 Porsche 917
    <img src="http://i615.photobucket.com/albums/tt237/jskitter/hooniverse/Porsche917.jpg&quot; width="600">
    1974 Lamborghini Countach (hat tip to tonyola)
    <img src="http://i615.photobucket.com/albums/tt237/jskitter/hooniverse/1978_Countach_LP400S.jpg&quot; width="600">
    1987 Ruf CTR "Yellowbird"
    <img src="http://i615.photobucket.com/albums/tt237/jskitter/hooniverse/ruf_ctr-2a.jpg&quot; width="600">
    1990 Mercedes Sauber C11
    <img src="http://i615.photobucket.com/albums/tt237/jskitter/hooniverse/NACADuctMercedesSauber.jpg&quot; width="600">

    1. Tim Odell Avatar

      NACA not found.
      [sad trombone]

      1. muthalovin Avatar

        Hey, you cannot win all of them all.
        I would rather have Mad_Science prove me wrong than jlklulz420 tell me I am a moran for being stoopid.

  3. joshuman Avatar

    I was all excited to throw up pictures of a Peugeot 206 GTI and a Lancia Delta Integrale. Although they both have hood venting/intakes, neither of them have NACA ducts.

  4. superbadd75 Avatar

    It's gotta be from the factory? Well, this one should have been, does that count?
    <img src=http://www.revlimiter.net/mods/pix/scoop1.jpg>

    1. muthalovin Avatar

      Love it. I really wonder what happens when you press the headlight button…

      1. superbadd75 Avatar

        Ah, don't worry about that part!

  5. dustin_driver Avatar

    Would the 1999 Isdera Commendatore 112i count?
    <img src="http://upload.wikimedia.org/wikipedia/commons/2/28/Isderacom.jpg&quot; width ="500">

    1. dustin_driver Avatar

      Yeah, probably not NACA ducts. But I just wanted to post the photo. Such an incredible car.

  6. tonyola Avatar

    Er, gotta keep that left headlight cool?

    1. superbadd75 Avatar

      Actually the intake is directly behind the left headlamp.
      <img src=http://image.modified.com/f/26977255+w750+st0/modp_0912_05_o+1994_mazda_miata_r_package+engine_bay.jpg>

    1. P161911 Avatar

      yep, for some reason it wasn't working for me today.

  7. Tim Odell Avatar

    The Pantera is straight out of the NACA Duct Golden Age, in dire need of better cooling, but ironically devoid of The Blessed Duct.

  8. Tim Odell Avatar

    Nope. Not NACA.

    1. dustin_driver Avatar

      Holy crap. We clearly have a winner. Best/worst use of NACA ducts ever.

    2. Tim Odell Avatar

      Whoa…that took me a second to notice.
      …actually on a lot of these I've been like "no….OHWAIT, now I see it!"

    3. Smells_Homeless Avatar

      Are those wheels on the wrong side of the car or are they designed to cool the brakes in reverse?

      1. skitter Avatar

        As far as I can tell, these would neither force air inward nor aid with extracting air to the outside.
        And they are symetrically opposite across the car.

    1. Tim Odell Avatar

      Weird, the demi-duct.

  9. CJinSD Avatar

    [img ]http://www.pfracing.com/29car.JPG[/img]
    One more try. If this doesn't work, how does one post photos here?

    1. zaddikim Avatar

      Too many tags means Nibbles' cousin Hoonibbles is shitting himself.

    2. skitter Avatar

      [img src="www.website.com/image.jpg" width="600"]
      Except with pointy less-than greater-than brackets
      EDIT: Extended website link, and, weirdly, attempting to correct your link in my browser sends me to the wiki page for HTTP protocol.

  10. Texlenin Avatar

    Yet another strange thing to come out of the NACA labs: http://www.voughtaircraft.com/heritage/products/h
    "If It ain't right, It's from NACA!"

  11. zaddikim Avatar

    Yes, yes it is.
    "Name a car with a periscope"
    "Name a car with gullwings and MB power"
    "Name a car from a manufacturer with an inscrutable website"
    "Name a car that non-car-nerds will have never EVER heard of"

  12. Rust-MyEnemy Avatar

    Isdera Imperator
    <img src="http://upload.wikimedia.org/wikipedia/commons/9/92/Isdera_imperator.jpg&quot; width="500">
    One of my favourite ultra-low-volume "what the hell is that?" supercars.

  13. scroggzilla Avatar

    Ferrari 250 GTO
    <img src="http://farm2.static.flickr.com/1158/4621840651_de43ddfc7d.jpg&quot; width="500" height="325" alt="63 sebring 12hrs ginther-ireland leads bonnier-cannon ferrari 250 gto" />
    Ferrari 250 "Breadvan"
    <img src="http://www.classicdriver.com/upload/images/_uk/12616/img02.jpg"&gt;

  14. scroggzilla Avatar

    Alfa Romeo TZ2__<img src="http://farm3.static.flickr.com/2737/4032311718_60c7cc51c0.jpg&quot; width="500" height="305" alt="66 targa florio federico martini alfa romeo tz2" />__Shelby Cobra Daytona__<img src="http://farm5.static.flickr.com/4050/4476008681_ed4e4e6372.jpg&quot; width="500" height="304" alt="64 lemans 24 hrs dan gurney bob bondurant shelby cobra daytona" />

  15. scroggzilla Avatar

    Alfa Romeo 33-2
    <img src="http://farm5.static.flickr.com/4074/4799333414_1a7efe24a6.jpg&quot; width="500" height="331" alt="70 lemans 24hrs piers courage alfa romeo 33-2" />

  16. scroggzilla Avatar

    Ferrari 312PB
    <img src="http://farm5.static.flickr.com/4120/4752615906_0cee6d8269.jpg&quot; width="500" height="338" alt="Ferrari 312PB LeMans film set" />

  17. Matt Avatar

    1994-1997 Honda VFR 750 (I have one):
    <div style="overflow: auto;"><img src="http://pages.cs.wisc.edu/~john/vfr/specs/pics/94-vfr750.jpg"></div&gt;

  18. skitter Avatar

    Aston Martin V8 Zagato. With bonus useless interior extraction duct.
    <img src="http://i615.photobucket.com/albums/tt237/jskitter/hooniverse/Zagato33.jpg&quot; width="500">

  19. Ruckus Avatar

    mitsubishi Lancer EVO 3 and EVO 4, possibly more. sorry about the lack of picture

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