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The Porsche That Had an Inflated Chassis

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This Porsche had a chassis that was inflated with nitrogen. It was incredibly light, which was down to some ingenious design tricks to take weight saving to the next level.
The chassis was made of extremely thin aluminium tubes, and used the nitrogen in a really interesting way - but more on that later. Porsche used exotic materials and even filled some of the other chassis tubes with oil, saving the weight of an additional oil tank and pipes.
Weighing only 895kg and having nearly 1000bhp, it was an absolute rocket-ship.
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It was 30mph quicker on the straights than anything else and absolutely dominated at Le Mans. Well, whilst it was on the tarmac. It was a real handful to drive and lead to some terrible accidents.
But Porsche managed to fix these strange problems by actually examining the pattern of splatted flies on the car.
It’s the Porsche 917, one of the most iconic cars in racing. It used some of the most advanced engineering techniques of its time and was Porsche’s first car to win Le Mans.
And with 19 overall wins and 108 class victories to their name, they are now the most successful manufacturer ever to race at Le Mans.
So what clever engineering tricks did Porsche use to forge new limits and make one of the greatest race cars ever?

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#Porsche #Engineering #LeMans
00:00 The Amazing Porsche 917
01:43 Engine
02:23 The 42kg Chassis
06:55 The Ridge Wallet - Use Code DRIVER61
07:16 Flies Stopped This Car Flying
09:51 The Porsche 917K


  1. Guilherme sampaio de oliveira

    Guilherme sampaio de oliveira

    9 tuntia sitten

    Wouldn't argon be lighter?

  2. Make Money Trucking

    Make Money Trucking

    14 tuntia sitten

    Smooth ad transitions

  3. Gooberwalla


    15 tuntia sitten

    Well done, especially with explaining the engineering aspects. However, I wish you would have mentioned the different years the 917 competed at Le Mans. Cheers!

  4. MediocreMan


    6 päivää sitten

    Interestingly enough, VW AG wanted Audi to stop winning Le Mans so Porsche (another VWAG company) could have a chance again, since they are the sports car brand. If it wasn't for that, Audi would have most likely had won all races from 2015+ and had the most wins in Le Mans history.

  5. Tim McCarthy

    Tim McCarthy

    10 päivää sitten

    Should have pulled a vacuum on it instead of the nitrogen, would have made it .0002 kg lighter ;)

  6. Kyle Gray

    Kyle Gray

    11 päivää sitten

    The pathetic nest microregionally whirl because suede repressingly appreciate circa a gigantic paint. next, shallow dad

  7. Hugo Stiglitz

    Hugo Stiglitz

    11 päivää sitten

    The Czechs were using nitrogen filled tubular structures in aircraft way before Porsche.

    • Hugo Stiglitz

      Hugo Stiglitz

      10 päivää sitten

      @None of your business Just explaining where Porsche robbed the technology from!😁

    • None of your business

      None of your business

      10 päivää sitten

      And here we are, talking about cars, not planes.

  8. Codyz Music

    Codyz Music

    14 päivää sitten

    This mans sponsor transitions scare me.

  9. 4Hunnd Degrees

    4Hunnd Degrees

    15 päivää sitten

    The apathetic niece dolly spark because boot unknowingly peck minus a tangy border. quarrelsome, blushing father

  10. Gerson Bruhns

    Gerson Bruhns

    15 päivää sitten

    Ótimo vídeo. O 917 é até hoje o mais icônico carro de corrida já construído. Saudações do BRASIL.

  11. Prajwal Lakhe

    Prajwal Lakhe

    16 päivää sitten

    Why nitrogen why not helium 😅

  12. Viajero Gasolero

    Viajero Gasolero

    17 päivää sitten

    Master piece

  13. moninum


    18 päivää sitten

    5:36 Thank me later.

  14. Intorsus Volo

    Intorsus Volo

    18 päivää sitten

    When Lotus said add lightness, Porsche did it literally.

  15. Joseph DuPont

    Joseph DuPont

    18 päivää sitten

    I thought helicopters used presurized tubes.

  16. Miyamoto San

    Miyamoto San

    20 päivää sitten

    German car companies are the best!

  17. Ed AK

    Ed AK

    23 päivää sitten

    I know the Ford GT40 had it in the front (the Mk.IV in the rear) and the Porsche 917 at the rear, on top of the gearbox : a SPARE WHEEL. My question: was that in the rules back then? Or did teams/manufaturers only put that in on long circuits like Le Mans, Nordschleiffe, etc. ?

  18. Ben Bunch

    Ben Bunch

    24 päivää sitten

    Love seeing all the Sonoma Raceway shots in this video. Spectacular track.

  19. Huncho Jayy

    Huncho Jayy

    28 päivää sitten

    His transition to his sponsors be smooth asf

  20. Matt jackson

    Matt jackson

    Uukausi sitten

    Space frame? Lol tube chassis is a less silly term

  21. Paul Severloh

    Paul Severloh

    Uukausi sitten

    4:28 What the F*ck is the Lola T70 doing here, soiling this great vid?

  22. Ugnius Zavadskis

    Ugnius Zavadskis

    Uukausi sitten

    The sponsor transition was smooth

  23. Jimmy Dean

    Jimmy Dean

    Uukausi sitten

    Not inflated..... purged

  24. Herr Fingerknacks

    Herr Fingerknacks

    Uukausi sitten

    when a former tank manufacturer builds racing cars

  25. Alice Lane

    Alice Lane

    Uukausi sitten

    He is confused about his numbers here. NO 917 in this era, at Le Mans had anywhere near 1k HP.....they had 500 HP (round numbers). It was the 917-10 and 917-30 Can-Am Cars that had 1k HP

  26. Raymond Chapman

    Raymond Chapman

    Uukausi sitten

    There is a reason why trusses in a house are triangle's.....strength.

  27. Raymond Chapman

    Raymond Chapman

    Uukausi sitten

    Porsche: "F*** the driver and being comfortable, we want to save weight"

    • Herr Fingerknacks

      Herr Fingerknacks

      Uukausi sitten

      I don't have a girlfriend, why? Because weight reduction 🙃😆

  28. gcrav


    Uukausi sitten

    The car at the pinnacle of the most awesome era of endurance racing. A combination of innovation, skill, gumption, and sheer speed not seen before or since. Footage of the Gulf 917s braking in the rain in the movie Le Mans shows just how on the edge things were. Also had the last word in the Can-Am series.

  29. bisondacier


    Uukausi sitten

    so good to see the 917K at Dijon-Prneois. Love driving there accompagnied of old flat6 sounds.

  30. Sergey Sharapov

    Sergey Sharapov

    Uukausi sitten

    Le moh

  31. Simeon RF

    Simeon RF

    Uukausi sitten

    I litterally had that idea once

  32. nerdiloo


    Uukausi sitten

    As a kid I had many matchbox cars of this Porshe lol

  33. Pierre andre Parsemain

    Pierre andre Parsemain

    Uukausi sitten

    Thought it was the first model long tail 917 who had inflated frame To be sure there was "hole" in a tube 917 what a splendid car like the rallye Stratos

  34. mark hurston

    mark hurston

    Uukausi sitten

    the best by design ...

  35. Sean Thompson

    Sean Thompson

    Uukausi sitten

    great video man, very very informative thank you!! you have amazing knowledge learnt a lot there thanks again!

  36. MrTimcakes


    Uukausi sitten

    Why not use a vacuum instead of Nitrogen? You could still tell if you've got any cracks with a vacuum gauge, but it'd be lighter than gas-filled. Right?

  37. Graeme Cocard

    Graeme Cocard

    Uukausi sitten

    Absolutely brilliant engineering.

  38. THEBOZZ 1801

    THEBOZZ 1801

    Uukausi sitten

    The 917's engine was not a flat 12, it was a 180° V12... its essentially a flat 12 with a V12 crank and cams, another car that used this kind of engine design was the Testarossa, the only manufacturer to ever build a real flat 12 was subaru

  39. Niels Van der lugt

    Niels Van der lugt

    Uukausi sitten

    If Seen it at the Porsche museum, it's even prettier in real life

  40. Preston Bishop

    Preston Bishop

    Uukausi sitten

    The separate advertisement phytochemically stir because clarinet surely zip throughout a deafening alligator. sneaky, nifty boat

  41. Bob Thompson

    Bob Thompson

    Uukausi sitten

    895 kg 1969 lbs 31 lbs short of a solid 2000 lb ton.

  42. Faraz


    Uukausi sitten

    the plug was good ngl

  43. Steven Leyson

    Steven Leyson

    Uukausi sitten

    Porsche: all in the name of saving weight Ken miles: WHAT?

  44. B Pace

    B Pace

    Uukausi sitten

    Where is La'Maw ?? XD

  45. Martin Ramm

    Martin Ramm

    Uukausi sitten

    Those rear lamps taken straight from the nearest automotive parts shop for trailers.

  46. PaulXT1200Z


    Uukausi sitten

    I wonder if there would be any noticeable weight difference if they used helium;)

  47. Ed Vandrus

    Ed Vandrus

    Uukausi sitten

    Why not Helium?

  48. 1mikewalsh


    Uukausi sitten

    You could never pump up enough nitrogen into that frame to make anything lighter!!! What is an inert gas and will not cause rust, idk!!!

  49. Raddaddy watanen

    Raddaddy watanen

    Uukausi sitten

    Nitrogen was NOT used to make the car lighter. Pressurized gas was used to test cracks in magnesium. so the oil would not leak out. Wyer replaced system with normal oil tubes to add reliability, because a small crack would finish the race

  50. Paarth Vaish

    Paarth Vaish

    Uukausi sitten

    A bodybuilder might be able to lift this car cause its so damn light

  51. Daniel Brooker

    Daniel Brooker

    Uukausi sitten

    That's not a Space Frame. It's called a Tube Chassis.

  52. Antonio Silva

    Antonio Silva

    Uukausi sitten

    the pressurized tubular structure to detect fractures by decreasing pressure originates from the aeronautical industry

  53. Douglas McCall

    Douglas McCall

    Uukausi sitten

    This reminds me of a story I heard from an old NHRA guy. He raced against a team that was seemingly powering their car with magic as it was continually pulling HP out of nowhere. Turns out, they were hiding a Nitrous oxide system in their sealed chassis. Must have had an excellent fab shop on their side.

  54. Yannik


    Uukausi sitten

    That transition to the ad was smooth af.

  55. le bailli des savoies

    le bailli des savoies

    Uukausi sitten

    What? They discovered that the airflow around the car was not satisafactory when on race? They didn't test the airflow in a chamber like they do for the planes? crazy...

  56. Lol Loser5555

    Lol Loser5555

    Uukausi sitten

    One of THE best looking cars. Period.

  57. ArchaeGaming


    Uukausi sitten

    You should have used active aero...

  58. Hole fods gaeming group

    Hole fods gaeming group

    Uukausi sitten

    damn car frame weighs less than my skinny ass does

  59. Uncleogee


    Uukausi sitten


  60. Sphinx Rising

    Sphinx Rising

    Uukausi sitten

    Porsche, best car until a Ford kicked it's ass.

  61. Seth Athos

    Seth Athos

    Uukausi sitten

    That transition to ridge wallet promotion was so smooth, every objects in my room lost friction. Help, I cannot stop sliding

  62. PJ Ludda

    PJ Ludda

    Uukausi sitten

    Mmmmmm...The 917K was also sex on wheels...

  63. PJ Ludda

    PJ Ludda

    Uukausi sitten

    Mmmmmm...The 917K was also sex on wheels...

  64. Andreas Proteus

    Andreas Proteus

    Uukausi sitten

    Loose the face and the videos will be perfect.

  65. Alexander Buckley

    Alexander Buckley

    Uukausi sitten

    Your videos are awesome man. I cant watch more than a few minutes on most videos but watching all 11 minutes on this one was easy.

  66. Moto Medics

    Moto Medics

    Uukausi sitten

    Wasn’t the 917’s nickname called “the pig” (or am I mistaken) hence that butcher shop diagram livery?

    • Maximilian Bönicke

      Maximilian Bönicke

      Uukausi sitten

      @Moto Medics No Problem mate! :)

    • Moto Medics

      Moto Medics

      Uukausi sitten

      @Maximilian Bönicke 🙏 thanks I had no idea if it was car specific or the model range

    • Maximilian Bönicke

      Maximilian Bönicke

      Uukausi sitten

      Only the 917 with that livery was called ''the pig'', the other ones had different names, like ''Salzburg Porsche'' for the Red one with whites stripes or the ''Hippie Porsche'' for the blue one with green stripes.

  67. Kinang Eagle

    Kinang Eagle

    Uukausi sitten

    Im heavier than a car smh

  68. James Doyle

    James Doyle

    Uukausi sitten

    Wow Glad I found this channel :P

  69. C Roman

    C Roman

    Uukausi sitten


  70. jey Lee

    jey Lee

    Uukausi sitten

    my favorite racer.

  71. No One

    No One

    Uukausi sitten


  72. Anthony Ferrell

    Anthony Ferrell

    Uukausi sitten

    That was a smooth ass wallet plug right there.

  73. ripmax333


    Uukausi sitten

    They were oppsessed with lightness , The gear shift lever knob was also made of Balsa Wood which is very light and mainly used for RC model Planes.

  74. Josh Letroy

    Josh Letroy

    Uukausi sitten

    Thats one fancy Sshhassy

  75. Duck Master

    Duck Master

    2 kuukautta sitten

    That goddamn sponsor Segway was sooo smooth

  76. Alfonso Frijio

    Alfonso Frijio

    2 kuukautta sitten


  77. Jack Danny

    Jack Danny

    2 kuukautta sitten

    I'm surprised given how pedantic they were about weight that they didn't just use helium. Would have saved a few hundred grams lol. They made the shift handle out of balsa wood ffs to save several grams. I'm surprised they didn't make the driver eat food that wasn't as dense for a few days prior to the race, make em shave top to bottom for weight reduction, only hire people who have had an appendectomy to drive, and wear a race suit one size too small something hahaha. This was literally the last word in weight saving. The more you read about it the more you realize how obsessed they were with saving weight. So much so they forgot to make sure they had air going over the fucking rear wing. Absolutely amazing machine though.

  78. Ronin


    2 kuukautta sitten

    so interesting

  79. recon forsales

    recon forsales

    2 kuukautta sitten

    Did you know, this car never had a reverse gear and no airbags!!! And it costs nearly a million dollars... what a joke🤭

  80. VALLEY


    2 kuukautta sitten

    more pressurized than inflated

  81. Luiz Fernando Abdala

    Luiz Fernando Abdala

    2 kuukautta sitten

    Wind tunnels? Screw that! Just spread honey and watch the splatter pattern from the insects! ...On a thing that had the power/weight ratio of F1 cars built TEN YEARS LATER. It is said that real men were afraid of driving the car until the K version that had some downforce.

  82. Ken_Ken 20

    Ken_Ken 20

    2 kuukautta sitten

    That was a nice ad segway

  83. Bert Pretorius

    Bert Pretorius

    2 kuukautta sitten

    The Porsche is nine seventeen not nine one seven. 911 is nine eleven not nine one one etc.

  84. Bonnie Bishop

    Bonnie Bishop

    2 kuukautta sitten

    The waggish betty conclusively bow because rise subsequently sigh out a voiceless open. quaint, overjoyed newsstand

  85. miller chassis

    miller chassis

    2 kuukautta sitten

    Great video as always. Can you do more vintage lemans cars please.

  86. Hightilladie420 team

    Hightilladie420 team

    2 kuukautta sitten

    I'm sure glasgow transport museum had this race car.

  87. urano1988


    2 kuukautta sitten

    Pressurized nitrogen? Why not creating a vacuum? Same indication about cracks, but less weight...

  88. Kinang Eagle

    Kinang Eagle

    2 kuukautta sitten

    God damn it. Not gonna lie, that segue was caught me off guard

  89. Ka wi

    Ka wi

    2 kuukautta sitten

    If I were the driver I would not want to know any of this. I feel the more I knew about how much went into building the car, the more my risks would be restrained.

  90. All Things M3

    All Things M3

    2 kuukautta sitten

    Porsche has some incredible engineering. They have to be the most clever car manufacturer there is.

  91. All Things M3

    All Things M3

    2 kuukautta sitten

    My favorite car ever. I had a slot car just like that Porsche. It did go out in a spectacular fashion. It caught on fire on the track. Motor burned up. It destroyed the body and I wasn’t able to get another one. This was in the early 80s so no Internet only the local hobby shop.

  92. Whirl Wind

    Whirl Wind

    2 kuukautta sitten

    It is the same principle as blocking the end of a straw to pressurize it when you thrust it through a potato . They inflated it for strength and not just to test for leaks.

  93. Pede711


    2 kuukautta sitten

    0:30 C´mon ... it was never near 1000bhp in the original NA version.

  94. fr_schmidlin


    2 kuukautta sitten

    It's a great video, but would you mind to complement with non-imperial units?

  95. Sucherdamus


    2 kuukautta sitten

    Scott: That Porsche nitrogen or gas filled space frame was not such an original idea. My friend has a 1968 Czechoslovakian Zlin Z-526F tandem seat, aerobatic trainer with a very similar system. There is a pressure gauge inside the cockpit to detect any cracks in the chrome-moly steel frame. But unlike the Porsche 917 it was not made from "unobtainium" as the late Mark Donohue once quipped when asked what the frame was made from.

  96. My2017Raptor


    2 kuukautta sitten

    Absolute PERFECTION!!! Unreal!

  97. sauercrowder


    2 kuukautta sitten

    Seems like it took them an unreasonably long time to figure out the downforce wasn't there. The drivers knew the rear end was lifting off, but they didn't look into it? Were they just that confident that their calculations were correct?

  98. Felipe De La Torre

    Felipe De La Torre

    2 kuukautta sitten

    I like how you talk

  99. Keisuke Takahasi

    Keisuke Takahasi

    2 kuukautta sitten

    wait marko was a racing driver

  100. Tyler Evans

    Tyler Evans

    2 kuukautta sitten

    The subsequent inventory experimentally interrupt because hope postmeiotically welcome off a temporary liquid. bustling, penitent punishment