Wouldn't argon be lighter?

Smooth ad transitions

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!

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.

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

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

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

This mans sponsor transitions scare me.

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

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

Why nitrogen why not helium 😅

Master piece

5:36 Thank me later.

When Lotus said add lightness, Porsche did it literally.

I thought helicopters used presurized tubes.

German car companies are the best!

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. ?

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

His transition to his sponsors be smooth asf

Space frame? Lol tube chassis is a less silly term

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

The sponsor transition was smooth

Not inflated..... purged

when a former tank manufacturer builds racing cars

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

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

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

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.

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

Le moh

I litterally had that idea once

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

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

the best by design ...

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

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?

Absolutely brilliant engineering.

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

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

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

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

the plug was good ngl

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

Where is La'Maw ?? XD

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

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

Why not Helium?

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!!!

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

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

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

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

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.

That transition to the ad was smooth af.

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...

One of THE best looking cars. Period.

You should have used active aero...

damn car frame weighs less than my skinny ass does

“Chewb”

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

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

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

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

Loose the face and the videos will be perfect.

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.

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

Im heavier than a car smh

Wow Glad I found this channel :P

😳

my favorite racer.

WHAT WAS HE SAYING ABOUT EACH TUBE?!?!??!

That was a smooth ass wallet plug right there.

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.

Thats one fancy Sshhassy

That goddamn sponsor Segway was sooo smooth

Awesome!

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.

so interesting

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

more pressurized than inflated

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.

That was a nice ad segway

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

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

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

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

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

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.

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

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.

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.

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

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

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.

Absolute PERFECTION!!! Unreal!

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?

I like how you talk

wait marko was a racing driver

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