Overhead Cam at 14K RPM

[@a5440]

It's hard to imagine air moves in and out at that speed in sync.

[@tewodros6597]

piston do the air suck at a time. so air can be sucked by piston so its kind of easy to enter air through the valves

[@lukaehrensaft-oh9898]

even more unbelievable is that the crankshaft is spinning twice as fast as the camshafts

[@Marsonpika]

Yea

[@lightskinanticsjiggin8129]

@@Marsonpika Great name

[@yaboitucktuck5952]

@@lukaehrensaft-oh9898 also the crankshaft constantly twists and contorts inside the engine but never breaks

[@sashakiselev8456]

Watch at 2x speed to see overhead cams at 28k RPM

[@skmanga]

lol

[@claytonpeeler5082]

Pure genius

[@trvxo]

Big smart

[@uncle_cezar]

Big brain right here

[@BAYAREAMX]

Actually cams spin at half the speed of the crank so speeding the video 2x would only get you to 14k rpms.

[@abhirammadhu2973]

It is so unimaginable and fascinating that all the strokes, Sparks, combustion and all are happening in this very small interval of time.

[@GFBESSA]

Me five mouths later: this comment deserves a like.

[@sameer26121980]

Theory of relativity

[@testname2166]

I agree with you

[@LuxuryLeet]

@@sameer26121980 how is this relevant to the topic?

[@sameer26121980]

@@LuxuryLeet Time is all relative. We humans think what looks small to us is really small and what we see big is really big. Its our brain which tricks us.

[@thooke222]

1. It's amazing how fast the spring can rebound. 2. I am amazed that cam lobes don't wear down faster than they do. Even with oil that is a lot of friction.

[@CabinetFramingUK]

You know if you hit water really fast with your hand? It feels like you're hitting a solid? I'm thinking that the cam lobes are hitting that other oil covered part so fast that the oil acts like a solid and the two part don't really touch at high speed. Could be bro science though 🤣

[@CabinetFramingUK]

That's why the metallic sound from the start disappears too

[@jackmclane1826]

@@CabinetFramingUK This is exactly what happens! Good observation and imagination! Slow movement can be more wearing than fast movement.

[@timothywhieldon1971]

@@CabinetFramingUK 100% correct. thats why the only part that matters is the film that the oil leaves behind as it is NOT compressible and at this thickness it is basically a solid

[@blitzed5210]

@@CabinetFramingUK bro you're a fucking genius

[@TidalWaveDan]

The heat, impact, vibration... The fact that engines don’t come apart at the seams more often is a scientific marvel.

[@gallardo20000]

TidalWave Dan most engines don’t even reach 1/2 the speeds you see here. average redline for a street car is like 6500rpm.

[@kugangles9860]

@@gallardo20000 Most 600/750/1000cc class sportbikes are designed to be redlined 12-14k daily. Majority of these bikes last for years after heavy use which is a testament to today's engineering.

[@kyboy5]

This engine needs a rebuild after this test

[@ethanbatten4427]

@@kyboy5 because there's no oil though?

[@daevster6663]

Cbr 600rr: am I a joke too you?

[@friscokid66]

Watching this it baffles me how engines don't break down more often.

[@banny123456]

exactly, how can this last 20y and 500k km

[@notallthatbad]

I've had the same exact thought. I'm amazed they don't just fly apart after a few goes at 70 MPH down the highway.

[@Wingnut353]

@@banny123456 Because it doesn't??? This is a superbike engine... your typical heavy duty diesel that will run for 20 years only does a few k RPMs.... the racing lifespan of the engine above is only 2500-5000miles.

[@banny123456]

@@Wingnut353 I did not mean this exact engine :) just general engines.

[@timoschannel1363]

@@notallthatbad Well, normal engines don't turn this fast. Most cars have transmissions that allow the vehicle to go at high speeds while keeping engine RPMs low.

[@Buschwick]

That just gave me a solid level of respect for mechanical engineers.

[@ashitkotian2396]

Dont forget the research done on metallurgy.

[@speedawayyspeed9736]

@@ashitkotian2396 I'm the one who is inventor of metallurgy I am the one who wrote theories on metallurgy and it's working dynamics get that in your head

[@karlbarnett5863]

@@speedawayyspeed9736 Trump voter?

[@snapcountersteer]

@@karlbarnett5863 I don't know what's dumber, his comment or your reply?

[@IMWT]

@@karlbarnett5863 what the fuck are you people on about holy fucking shit

[@stevem4568]

Been a mechanic for nearly 40 years and it still amazes me, how hard the internals of an engine work, without going bang, majority of people have no idea when they press that right pedal

[@RefinedRandy]

That's why I fell in love with cars. At a very young age (I think somewhere between 6-10) I realized how complex and amazing they are. How big of a feat they are for human creation, even tho most Americans use one daily without second thought of what's actually happening.

[@derbigpr500]

And how they last for so long without wear. Saw an Audi A4 diesel engine taken apart with 820,000 km on the clock, the cylinders still had factory honing marks visible on them and the engine was in perfect condition, in fact it dyno'd at 5% more power than factory previously.

[@NC-xk1eg]

I am phasing just watching this! And imagine that the pistons moving twice as fast as the valves!

[@bltzcstrnx]

Too many moving parts.

[@earling22]

I tell this to people all the time. They have no idea the miraculous violence going on four feet from their nice cushy cockpit. Not a clue.

[@alexandremartins1462]

dudes with civics at 3 AM be like

[@pbjracing14yearsago49]

It's bmw motor lol

[@brendan547]

PB&J Racing whooooooooooooooooooooooooooooooooooooooooooooooooooooooooosh

[@pbjracing14yearsago49]

@@brendan547 ok

[@Jorge_R762]

@@pbjracing14yearsago49 .

[@riccc]

r/im14andthisiswoooosh

[@NemesisProject1]

People have no idea about the madness that goes on inside an engine

[@NemesisProject1]

Dacia Sandero yes I do

[@dexterjsullen]

Most people engine doesn't go to 14k rpm

[@NWLegacyChannel]

This is a racing engine apparently, meaning it can only run like this for a bit. Know why F1 cars have to go through pit stops?

[@jace_Henderson]

NemesisProject1 i knew this shit was always fast but it’s one of those things where no matter whether or not you know it still amazes you.

[@JamoZNL]

@@NWLegacyChannel This is a regular road going engine. Nothing special about it. F1 cars only pit for tyres nowadays. Shows you have no clue what you`re talking about...

[@idriwzrd]

Hard to believe that the combustion event can be controlled in the cylinder at these speeds.

[@skepp7600]

+idriwzrd the engine on my rc red lines at 36k rpm

[@idriwzrd]

Anton Marinski The two-stroke engine. No valve or spark events to control. Impressive engine speed, though.

[@skepp7600]

+idriwzrd well yeah but still

[@Sheehy223]

Formula One cars use compressed gas instead of springs to prevent "valve float" which is what happens when your engine is at such a high RPM, the valves can't close fast enough to contain the compression stroke and you lose power. So yeah, on very high revving engines, you'll rarely find springs.

[@BrowerBandit]

+idriwzrd im surprised theres no valve float at this RPM.

[@nasedo3129]

Amazing. The tiny amount of time those valves are open they somehow let in enough air/fuel to make power and then let out the exhaust. Amazing.

[@stevendegreef93]

@@DaN3xtSlimShady There is no "blow by", it's mist/spray from the oil getting vaporised. The engine you see is not functioning, you can only hear the sound of the valve train. It's electrically driven probably, just to show/film the valves doing their job.

[@UFO-047]

@@stevendegreef93 thats the sound of a running engine, its not valvetrain noise...

[@ShinYuzo00]

Valve Springs at 14k rpm are like: That's too fast, we are spinning now instead of beeing a spring.

[@derekhightower1530]

They spine to rotate the valves to prevent over heating. They are called valve rotaters

[@BenState]

@@derekhightower1530 only on one side?

[@derekhightower1530]

They exhaust and intake valve both were rotating. They dont have to rotate in a complete circle but they can move back and fourth with a small degree.

[@benjammin5055]

@@derekhightower1530 It has nothing to do with over heating. They rotate so that they reduce wear on the valve tips. If they didn't rotate they would wear out faster.

[@benjammin5055]

@@derekhightower1530 They are supposed to make free and complete rotations. If they don't then they wear out faster.

[@scavengerspc]

14K RPM? That is some strong valve springs.

[@passngas2]

scavengerspc this engine appears to have a valve return rocker. Another car love actuates it. It’s prevents valve float at high rpm by pulling back up on the valve once it has already been opened. I forget the name of this type of engine

[@passngas2]

scavengerspc it’s called a desmodromic valve setup

[@profblindserv]

But wouldn’t each one be spinning at 7100 RPM‘s As the piston is traveling at 14,200 rpm’s

[@AstraZero7]

@@profblindserv no rpm is based on cam speed not crank speed. The crank is turning twice at fast. So at 14k the crank is spinning at 28k rpm

[@jaredphillips2423]

@@AstraZero7 nope, rpm is always based on the crank, so at 14k rpm the cam is spinning 7k rpm.

[@TheFortyAnomaly]

Props to the guy who risked his life to film inside a running engine.

[@vladimiro83]

Stativ?

[@adamya1639]

Ummm he didn’t?

[@numbedstinkbug6689]

Adamya r/whoosh

[@adamya1639]

Numbed Stinkbug he wasn't joking

[@consoleconceptshd6371]

@@adamya1639 yes he was dumbass

[@zstrode.8953]

Even being a technician all these years. This still blows my mind that everything working in sync is doing one job Respect for these engineers! Maybe one day I'll be at this level 🥰

[@Ebrakes]

Some one really needs to do this again with one of those 10,000,000 fps cameras, that would be a trip to see in slow motion, actually watching those spring go up and down that fast...

[@TheGDFP]

I was thinking the same thing, but then pondered, is seeing some thing that is going really fast, slowed down, really getting me any where, versus just watching it while it's going slow?

[@EricBlumenstein]

Terry Straubel I'd argue that it is. Acceleration and anything affected by gravity look completely different when at "hi speed slow mo." Think of watching someone run vs. watching someone walk; there are all sorts of details that are completely different.

[@Kj16V]

Terry Straubel I've seen it in slow mo. I can't remember where though. It does indeed look different; the top of the valve spring goes up and down with the cam, but the middle sort of resonates back and forth like a slinky.

[@thezulucow]

not quite 14k rpm but here's 8500 - just paste this after the watch? part of the url for a video v=WtqDHJDN79w (i can't remember youtube's standard reaction to posting links in comments)

[@ccls2]

thezulucow You can post links. Started a few months ago.

[@demise8713]

Everyone: KZbin recommendations are broken. KZbin: Hold my overhead cam

[@ibo1137]

🤣

[@SenorBumboCactoni]

Cams*

[@frisos8850]

This

[@aaronvargas2550]

😂

[@iHaveTheDocuments]

Dead cringe meme

[@roadrunnerblink]

Always baffles me that the springs are able to 'expand' quickly enough to keep up with the cams. You wouldn't think they'd be able to at that speed. Awesome.

[@wraithking1295]

Jonas Jonaitis not necessarily. Next choice can be desmodromic valves - uses Ducati.

[@wolfy9005]

David Sýs The desmo uses pneumatic valves

[@albertllaphan]

wolfy9005 Ducati do not use pneumatic valves. Not even in their MotoGP prototypes.

[@wraithking1295]

espibanez1 I agree completely.

[@wolfy9005]

espibanez1 Ah I was mistaken about the desmos valve train being pneumatic. What sort of pressures are they running to open and close valves in a purely pneumatic system? Surely a hybrid system would be more accurate from a timing perspective... Could always increase compression ratio to keep power the same and reduce the typical rpms into a more spring-and-cam friendly territory. Not like they don't have the money, I should probably read the MotoGP rules for engines

[@Johnnywhamo]

This is how BMW gives you back your engine after servicing it.

[@justarandomguy3969]

You engine?

[@qwertyqwerty-zi6dr]

Still not as good as ur vtec =)))

[@RSx94]

1:35 Close your eyes and suddenly you're at the barber shop.

[@MSneberger]

The springs spinning like that was the most surprising part of the video.

[@bhaweshk139]

The sound of trimmer LMAO

[@UCmDBecUtbSafffpMEN3iscA]

I can relate lmao

[@jaggernut-1237]

Lol

[@michaelmcaleer59]

LMAO I'm dead,

[@Engineer9736]

It's incredible that the springs and valves can keep up with that speed.

[@danylabonte498]

ever heard of valve float?

[@DerPilotMann]

+Dany Labonte I think I actually noticed a bit as they were ramping up in speed. Particularly on the right, valve seemed to stay open for a short while. The second spring helps with that though, as both should operate at a different resonant frequency, which is a large contributor to valve float.

[@keesketsers5866]

+DanTheSasquatch I like Ducati's solution more....just have a second rocker arm close the valve instead of a spring. You can reach way higher rpm's without valve float. Look up ducati desmodromic valves. Drawback is valve gap adjustment is a b*.

[@DerPilotMann]

+kees ketsers Will do! I'm sure there are better solutions, bit I work in aviation and getting any "new" ideas is almost blasphemy. God help you if you actually want anything to become certified...

[@DoubleM55]

What's even more impressive to me when you realize how fast pistons must be moving in this engine, imagine the g-forces experienced by those engine components. Brutal.

[@Gabriel-he6ih]

2:00 my hard drive when im installing 50 Terabytes of "homework"

[@midas8877]

Bro I think your teacher is trying to get you to drop out

[@computerwiz4]

@@midas8877 Whoosh

[@UCmDBecUtbSafffpMEN3iscA]

I bet that's full of cp lmao

[@romero-kyun2681]

i use a petabyte of storage for that.. does the trick well

[@frankielemonjello]

And by 'homework' I mean 'PrOn'.

[@rhouser1280]

This is much more deserving of my time than the news

[@wtechboy18]

y'all need to get with the Slowmo Guys and take a look at this again at like a million FPS.

[@jklbubbublkj7939]

wouldnt that be the same as turning it over with a ratchet? and much cheaper?

[@wtechboy18]

@@jklbubbublkj7939 that doesn't show valve float or anything

[@nameless5r]

@@jklbubbublkj7939 no, it wouldn't

[@simonmessenger7217]

I think the max they can film is 300,000 FPS at a shitty resolution, unless they've upgraded recently.

[@wtechboy18]

@@simonmessenger7217 that would still be pretty cool to look at, I think.

[@danielcarroll6303]

Me: see cams at 14K RPM also me: put your finger in it

[@adrianlopezbastos3832]

How the hell did you read my mind?!

[@bottomtext593]

Your finger would vaporize

[@joycethegermanshepherd9432]

i put my hand in a snowblower now i want to put my finger less places

[@hongthainguyen5334]

_Someone said they touched an open piston while running a V8 with one head off, and it’s like touching a solid block, so it’s fine_

[@Xiaoyixiann]

I thought that too...

[@don1738]

When your buddy says hes just "taking it for a spin around the block"

[@dw4940]

Lol

[@kevinchamberlain7928]

I'm that buddy.

[@blohmymind]

2:22 Sound coming from my step-mom's bedroom at 9:01am.

[@GBPaddling]

Blind Man's porn, ha ha.

[@rosebriji4433]

Lycky

[@frankdeon6539]

You win best comment.

[@bruh-moment-21]

LMAOOOO

[@DurtyDog]

😂😂😂

[@daltonelliott5447]

this is arguably the coolest video i've ever seen. i love being a car geek and knowing that there are thousands of others who feel the same.

[@daltonelliott5447]

+Scott Rikkard i feel that spiritually, man. i have ONE friend who likes cars, but he's into stance...

[@daltonelliott5447]

lil bit. wants to slam a WRX of all things..

[@jp_0118]

Dalton Elliott "Hell naw....2 da naw naw naw...Hell 2 da naw; hell 2 da naw..... 2 da naw naw"

[@daltonelliott5447]

i think stance is alright on VIP sedans and such, but not performance cars.

[@daltonelliott5447]

***** well, yes and no. the valves are really being pushed, not pulled.

[@arnavkumar3060]

Those springs have a tough job ... 😯

[@3RTracing]

when and if you do get valve float it acts like a limiter, and the engine will not achieve higher rpm. Dependent on the deck to seat distance, sometimes you do have valve incident (valves hitting the top of the piston), but usually, the torque curve is such, that a trained driver, builder or someone who understands red line on a tach WILL NOT take a motor to the point that it floats the valves,

[@creepyzeek1]

so does my drive shaft.

[@nahrafe]

Sub to pewds, report T-Series!

[@ssimon64]

Yeah... it's a good thing they are inanimate objects that don't think or feel anything.

[@johnwhodat8135]

@jesus jones ...lol

[@gionotreal]

And that kids is how Takumi blew his engine

[@mitchelmitchel8152]

GiosMediocreWorld lmao

[@KMakoENVtuber]

I still cry

[@bobbyqueso]

GiosMediocreWorld thought a piston punched through the engine block

[@keisuketakahashi3597]

But in my car there's no cams 😎 my FD3s is batter then 86.

[@Xx_Stogi_xX]

Lol why

[@far0n]

It amazes me that the springs can return quick enough to handle that kind of rotation 😲

[@southbaywaverippers8393]

Don’t let this distract you from the fact that Hector is going to be running three Honda civics with spoon engines, and on top of that, he just went into Harry’s and bought three t66 turbos with nos, and a motec exhaust system.

[@_T_R_E_V_O_R_]

Why did I immediately know what u where talkin about lol

[@ashleysmith3912]

A motec system exhaust, not a motec exhaust system

[@badtama07]

😂😂😂😂😂😂

[@NuclearTopSpot]

Don't let this distract you from the fact that Mr. Krabs sold SpongeBob's soul for 62 cents

[@scottschreiner7925]

So what are you saying you are going to go around and check everybody's shit out.

[@bicylindrico]

And the pistons are running at twice that speed.

[@RNA0ROGER]

+bicylindrico More like 4 times that speed.

[@bicylindrico]

+("RNA0ROGER") Nope. One revolution of crank moves piston up & down. One revolution of cam moves valve up and down. Cam runs at half speed of crank.

[@RNA0ROGER]

bicylindrico That might be why they broke in my mothers car.

[@MusicForEver19951]

+bicylindrico nope the pistions are running with 14k rpm and the cam witch 7k ;)

[@bicylindrico]

+nHeptan Gaming That's what I said genius

[@DaveDuzzit]

Randomly skip around the video after 2:33 to play a song

[@Chase_01]

Dave Duzzy u right

[@tommypham2550]

Dave Duzzy sounds like a Swedish House mafia song

[@posadist681]

this is why i love youtube lol

[@peytonthomas4506]

Sorry broke boy alert my WiFi ain’t that good

[@GroveDaLord]

Hahahah love this comment

[@jamesscholz8338]

I recently had a Gates timing belt that was putting my camshaft pulley off a half of a tooth, one way my 0-60 was really good with horrible low end torque, the other way lots of low end torque but it would actually slow itself down once I got to higher rpm accelerating. I ended up getting an OEM one and it solved all my problems. It astonishes how a smidge of a degree a camshaft can be off, make drastic changes to low end and high end torque, be driven a few thousand miles, and still not ruin a motor.

[@bendenisereedy7865]

We once had an ex-MOD Landy with the 67 bhp 2.5 litre N/A engine and it ran fine. We fitted a new timing belt and found the old one was two teeth out!

[@torah033]

The rebound of springs just amazes me. Watching a automatic gun fire and knowing the springs are moving that fast is impressive enough. This video just blow my mind that those valve springs can preform like that.

[@jed-b3857]

So many of these comments mistakenly believe this is showing a car engine lol, this is normal for sport bikes (but still an incredible feat of engineering)

[@factoryrider9537]

Considering the r6 with a 16600 redline or the cbr250rr with 20k that's even more impressive

[@monochrome_linux]

FactoryRider this was from a bmw s1000rr or something.

[@muhammadakmalbasyhaazis3294]

@@factoryrider9537 CBR600RR has shorter strokes than S1000RR

[@BrokeTruckerGyal]

Thank you, this is what I thought.

[@MrMotorNerd]

@@factoryrider9537 Honda NR 500 in the early 80,s was doing 20 k

[@KFLY67]

Spinning so fast looks like standing still

[@chinesekid7000]

KFLY67 welcome to the world of video cameras.

[@КлиментЦонков]

Because 30fps

[@kjun9313]

valve rotator's only real giveaway...........

[@cgouais]

Same thing with me! I'm moving so fast around the house, it almost look like I'm sitting still on the couch all day!!!

[@scallie6462]

shutter speed.

[@user-fm7ripak]

It's hard to believe that the valves have time to close completely! It's amazing

[@siIent_hero]

Takumi: *Turns lights back on during final race* 86: 2:00

[@cosmochaosmaker]

In case of poor visibility, you can equip a permanent camshaft interior lighting.

[@AbsoluteAbsurd]

lul

[@forbiddentictactoe1734]

@@cosmochaosmaker not even close in the 86 everything was glowing hot lmao

[@Gunzee]

I love how the springs slowly being turning in unison around 1:37. Also those springs are amazing, at that rate one would expect skips or miss beats but they rebound with such speed.

[@LeGronk]

am I the only one tensing up watching this?

[@rot_v]

Nope lol

[@savagemako17]

LeGronk Hell no!! I wanted to go run behind some furniture. It doesn't seem possible. And just when you think it can't go faster...it goes faster !!! Incredible!!!!!!!!!!!

[@schlaznger8049]

LeGronk I think my nuts ran laps around each other and then jumped back in my body

[@chickenstrangler3826]

+LeGronk Stick your finger in it.

[@LeGronk]

Stuntman Mike that's definitely something Stuntman Mike would say.

[@jonasgrumby1093]

Just remember at 14K RPM the cams are turning 7K

[@hasanalikhann]

I'm wondering how springs does their job at that speed.

[@sessna]

Valve return shocker

[@ghostjaeger4326]

Hasan a lot of times they dont, that’s why you hear about people who smacked a valve

[@budgetboizmedia]

super stiff springs

[@mudargamer]

@@ghostjaeger4326 stupid comment, stock s1000r can hit 14k rpm

[@ghostjaeger4326]

I’m not sure how to explain this if you’re gonna be stubborn, I’ve seen people smack valves at 7000rpm. I’ve seen bikes that rev to 16000 rpm. I said a lot of times. Not all cars, learn how to read مضر زهاء

[@robojimbo7039]

I felt like I was gunna blow a motor or gasket just watching this.

[@prometheus575]

Well, only if it bought you dinner first, but I usually wait until the second date for that...😋

[@bennybop5387]

@@prometheus575 ha😄!

[@hughjassstudios9688]

@@arinb.756 Or if the valve slaps the piston

[@ryancooper73]

Show this to people who neglect oil changes.

[@kristupasantanavicius9093]

Oil is cheaper than heads.

[@nigelcarren]

I honestly gulped and had instant guilt upon reading this. (Orders oil and filter immediately). Thank you 🏆

[@bustabusta7676]

Now I want to change my oil

[@hectorrangel1580]

And when they add oil they put Texas oil

[@Junpei747]

To think that this is just only a scratch of what humanity is capable of, and we can just continue more and more with innovation

[@datsun100a3]

2:25 my cpu when running notepad

[@felixarvidulfkjellberg6361]

Technically it’s faster than that. But i can understand that. Quite relatable tbh

[@datsun100a3]

Felix Arvid Ulf Kjellberg I got the blue screen of death weeks ago and now it’s completely fried. Stupid piece of junk! Well.. I’m done with that windows10 and now I’m using my windows7 from 2012. I feel like a kid again! They just don’t make them like they used to

[@felixarvidulfkjellberg6361]

Datsun 100a yeah man true. I hackintoshed my 2017 dell inspiron 15 3000 series laptop. MacOS Catalina runs better than windows 10 on my laptop. Though it takes 10 minutes to boot up with my 5400 RPM 1TB Toshiba HDD and a ~2 GHz i3 7th gen processor. Intel CPUs these days are overpriced crap

@@datsun100a3 Ive been using Windows 7 all the way thru... You cant make me downgrade!

[@adamya1639]

Datsun 100a r u stupid if u use a trash processor how the actual heck is windows related to that I mean like u have literal zero knowledge

[@mikerotch5945]

im a marine engineer. during my 7 years of being a seafarer ive never seen a valve rotator in action (our engine has 1175kw or 1175bhp medium speed inline engine) seeing this video is an eureka moment for me haha. i love it! great video.

[@withoutl7980]

If you were an engineer you would now that having 1175 kW your engine cannot have 1175bhp.

[@mikerotch5945]

@@withoutl7980 we have a measuring machine that measure it at the fly wheel.

[@mikerotch5945]

@@withoutl7980 bhp is power measured at the fly wheel sunny boy

[@Kekeslicious]

1kw doesn't equal 1 horse power

[@mikerotch5945]

@@Kekeslicious umm stfu son bhp calculate it stoopy

[@ello5839]

Great educational video for everyone interested in mechanical engineering. The valve spring oscillations are actually very interesting.

[@EATSLEEPDRIVE2002]

1:25 I like how from this point on you can see the valve spring’s own soul

[@rogerpearson9081]

Fascinating to see the valve rotation occurring and the fine mist of oil at those insane revs. Really shows how you need lots of oil control at those speeds.

[@falcongamer58]

See guys? This is why you should change your engines every 3 or 4 miles of driving

[@Bezzer1975]

WRONG!... You should only need to change your oil every day!!

[@falcongamer58]

@@Bezzer1975 oil is useless, change your engines

[@TheNicoxoxD]

@@falcongamer58 what in the actual fuck

[@falcongamer58]

@@TheNicoxoxD when your tires wear out, swap a new drivetrain

[@TheNicoxoxD]

@@falcongamer58 you just trolling okay

[@petermoygannon698]

it amazes me how the spring can compress and expand quick enough to shut the valve

[@Mobischer]

Those are really strong springs

[@southern_merican]

Or does it valve "bounce" when valve slams shut. Or does it ride the high spot on the cam at high rpms.

[@BobbyDwi12]

@Oggy Umm.. didn't the spring need to be hard enough to prevent floating at high rpm? And how did you open the valve in your engine with your thumb? Even when I was using the right tool to push the spring out, I still have the difficulty to push it out.

[@Georgey0121]

Tempered and tentioned springs, must made a good base for a matress

[@rainbowwarrior2635]

Wow that is intense. It is amazing the forces inside a modern motor. It's also the level of engineering it took to get valve trains to rev this fast. As fast as those cams are spinning the crank is going twice as fast. You can see why pushrod motors can never go this fast. Those springs are bouncing all around and spinning and everything, and the wear on the cams is a lot too. This is why diesels last so much longer. The lubrication system has to be so intense too. That is just crazy.

[@DanielPfender]

Awesome watching the revs line up with the camera's frame rate, so it looks like nothing is moving. Great video!

[@tarassu]

140 000 FPS please.

[@gummel82]

Arnis Tarassu Wouldn't be much different than seeing this at low rpm.. what do you expect? Some kind of explosion or what?

[@tarassu]

John McJohnson spring being too slow and camshaft running faster than valve recovers.

[@CaptainDooDooButter]

John McJohnson Valve float.

[@TheTate182]

This. things operate very differently at 14,000rpm than 1000rpm...

[@deletevil]

@@gummel82 , humans could not have improved engines or technologies with that attitude. There are actually many things happening at that rpm that may behave differently than at lower rpm; one of the uses of high rpm camera in here is to observe exactly what rpm valves start to float at.

[@mykullee]

Song notes: "5" is D (re) "6" is G (sol) "7" is B (ti) "8" is A (la) "9" is F# (fa) in a scale, you can press 5, (missing E or mi), 9 , 6, 8, 7

[@Bulk12]

Michael Lee 7 8 6 8 7 7 7, 8 8 8, 6 7 7, 7 8 6 8 7 7 7 7 8, 7 8 6. Mary had a little lamb.

[@Maddo1X]

+Luke Taylor U are a genius

[@akupehsluarketatAR]

+Luke Taylor LoL i actually try dat... hahha awesome.. how to play mary had a lilttle lamb using s1000rr engine

[@G0DALMIGHTY]

Thanks guys. :p that was fun.

[@mb-fx9wj]

got to it before I did

[@Grunchy005]

No discernible valve float, and they're just single valve springs. Pretty darn good !!

[@MaxPower-yg1uf]

The average dummy sitting at a traffic light has no idea

[@deletevil]

Tbh, the average dummy's engine's camshaft sitting at a traffic light don't look like these though (I meant the RPM). xD. edit: but yeah you're right.

[@davehughesfarm7983]

@@deletevil you mean neo-liberal city fools that know nothing....

[@deletevil]

@@davehughesfarm7983 , you may say that :)

[@kendelion]

My idle speed is just around 600rpm, I dont rev at stop lights. Even acceleration only goes up to 2000rpm to save gas. My bike can go up to 14000rpm too but that's just when I feel like doing so. I hope transparent engines becomes a thing, I'd watch that more than my infotainment!

[@SpaceMissile]

@@kendelion Have you seen this vid? kzbin.info/www/bejne/oJW6Yqdup52kj8U It's a one-cyl ICE with a see-through head. Very cool stuff.

[@LWUndsoo]

2:07, springs be like: You spin me right round baby right round.

[@reggiemasanque3489]

Like a Record baby Right round round round

[@kwekumensah5642]

Ooohhhh oohh ohh ohhh oh oh ohhhhhhhhhhhh

[@vojtyyk5812]

Lol

[@leftright6054]

That's how he died

[@depax95]

Bullshit, i only counted 13.944 rpm....

[@porkchopgaming8480]

depax95 shit, that's a slow engine only 13.9 rpm

[@EGGINFOOLS]

depax95 Well counting what you see in the video would really only get you 7k rpm. Or 6.944 lol

[@mpoerot8013]

depax95 that's because you're watching at 240p

[@deepak0148]

depax95, u might have blinked couple of times, i counted 14,010 rpm!

[@Rocky_Aspen6021]

Close enough

[@davidvenegas6401]

Around 1:45 it's moving so fast it actually looks like it isn't moving at all.😮😮😮

[@sto1asgoetia600]

It’s moving so fast the springs are literally rotating in their housings

[@LASSOV]

Nobody: Me: presssing 6 8 7 9 on the numeric keyboard to make music 6 1:59 8 2:39 7 2:19 9 2:59 Ps.: I will be uplading my own songs & music vids soon. A subscribe is very much appreciated ♥ (lol am I promoting myself over a motor vid? this shi got 7 fkn million views tho) Music is timeless ♥ EDIT: Please share your tabs lol

[@omen2332]

Bro that's actually sick

[@hazard5477]

@@omen2332 xd

[@weedleaf4873]

7 8 6 9 6 6 6 6 6 I wanna know your name

[@hazard5477]

@@weedleaf4873 neme is: ابو ذبان

[@LASSOV]

@@weedleaf4873 hahaha

[@Gottaloveguitars427]

That’s amazing, see how balanced everything is at the higher rpm’s

[@Magnatross]

Such is the power of a Gallo 24

[@christianesparza5302]

Gallo 12 is a better engine for the skyline.

[@Halbinito]

Good old Brian O Conner :D

[@fowvee]

Remember, the cams turn at half the speed of the crankshaft. These cams aren't turning 14,200 RPM, the crankshaft is. The cams are turning 7,100 RPM. It's still an amazing sight to watch.

[@adamhonda98]

Going so fast the springs and retainers start spinning OMG

[@megopteryx]

Thats intentional, its to have the same amount of wear on the valve, otherwise it wouldnt have a correct seal

[@adamhonda98]

@@megopteryx wow I never knew this but it makes sense

[@adamhonda98]

@@megopteryx wow I never knew this but it makes sense

[@lel3923]

That's probably a shutter thing. Like how helicopters blades look stationary through a camera sometimes

[@samhicks97]

1:40 Suck, (Intake) squish, (Compression) bang, (Power) blow. (Exhaust) Combustion process with in that time is maddening with that high RPM.

[@scheidldratza3001]

squeeze

[@orderofmagnitude-TPATP]

At just 2.5krpm - that cycle happens 80 times a SECOND!

[@jamescornflake1542]

Sneeze))

[@digitaldreamer8637]

Fark me! 😳 Those poor valve springs and lobes. Make you realise how important oil supply to the valvetrain is. Wow. 👍🏼

[@igiveuponhumanity9238]

Digital Dreamer I didn't realize there are people who think oil isn't important to an engine.

[@tpz7618]

The internal combustion engine is an absolute engineering marvel and this video proves it every time I watch it.

[@rhynocerous988]

It's amazing to think that the only thing stopping the cam lobes from grinding themselves completely to shit are those droplets of engine oil that get splattered around the rocker boxes. Unreal.

[@danthemanzizle]

amazing what you can do with hard steel and a bit of oil.

[@ThexXxXxOLOxXxXx]

danthemanzizle Look at your body you give it one fruit and some water and it works with all its functions for days hell some even weeks. shit your comment was made 3 years ago xD

[@srt4dyl981]

ThexXxXxOLOxXxXx Lmao oh shit your comment was made 8 months ago

[@PoliticalGangster]

your comment was made 22 hrs ago LOL

[@TheRealTooda999]

PoliticalGangster your comment was 1 month ago

[@connivingkhajiit]

@@TheRealTooda999 your comment was 22 hours ago LOL

[@100thMkey]

From the moment I understood the weakness of my flesh, it disgusted me. I craved the strength and certainty of steel. I aspired to the purity of the blessed Machine.

[@kwstasxatzhpetros3749]

Sounds like something out of dark souls.

[@Proscoro101]

@@kwstasxatzhpetros3749 Bruh that sounds something a Tech-Priest would say, not an Undead.

[@Rythblaqk]

Chumbucket? Is that you?

[@mclazyps5334]

Flesh is weak

[@100thMkey]

@@Proscoro101 Gets it!

[@morley3810]

So that's why lightweight valves are important...Hard to believe the spring actually maintains control at that speed. Incredible.

[@craigbielsky115]

SPRINGS ARE MADE OF TITAINIUM AND KRYPTONITE

[@Уголёк-ч3ф]

The lightweight valve cools worse, as a result of which it wears out faster, and burns out more often.

[@MrMoto655]

Is this why I have to check my KTM's valve clerance every 5 seconds?

[@sergioferreira5771]

BULLSHIT YOU SHOULD CHECK EVERY 4.8 SECONDS

[@Dr_Xyzt]

Kinda. The valve seat wears out, so the valve tries to go deeper into the guide until it's up against the cam constantly and the valve never closes. On a low RPM engine, it just makes it hard to start and it doesn't run quite so perfectly. On a high RPM engine, the stem concentrates its force on the center of the valve bucket and can split it. Head is toast. Another more common problem is the poor clearance makes the valve resonate and it eventually breaks off. Engine is toast. Look up "Dropped valve."

[@rambow70]

I loved the enthusiasm on that comment, made me spit food out.

[@ShipWreckAndHaloFan]

No, it's because you own a KTM.

[@FarrFromPerfect]

He has to do something to pass the time.

[@jadennorman298]

Alright see yall in 5 years when this back in our recommendations

[@JrGoonior]

Shoot!! My own comment from 7 years ago is at the top of the list...

[@BeesUhLikeADaHoney]

KZbin algorithm just got to me

[@chickenpopper]

✋

[@dreadminion1284]

Took me 3 years GG 😂

[@jadennorman298]

@@dreadminion1284 I forgot I made this comment

[@joetheman357]

when bae says she's home alone

[@bustarogers9990]

Anyone using the word bae should be sterilized.

[@YaHussain3_1_3]

lol

[@joshbobst1629]

Matt Irving Apparently his bae doesn't think so.

[@puprilla]

When u see a crowd

[@khateebahmed3691]

When ur mom is alone joe dicocco and ur sister 🤤🤤🤤

[@lars9168]

props to the springs, the true heros in the video

[@yoville73]

Those things are taking such strain with the engine revving higher than modern day Formula One cars (they currently do about 12,000rpm in their current spec) it astounds me that they don’t just blow off at that speed

[@devalraval007]

I salute to the engineers!!!

[@jungle6815]

Bmw my dude 🖤🖤

[@TheSavage3.6]

iiJungleIQ big money waster

[@jungle6815]

@@TheSavage3.6 quality > quantity

[@TheSavage3.6]

iiJungleIQ are you fighting for or against

[@jungle6815]

@@TheSavage3.6 against

[@mattsmith4322]

So that's what happens when you put redbull in your coffee...

[@427ci3]

and meth

[@Masterman5010]

Along with crack

[@2smokerr973]

+Masterman5010 plus bath salts and acid.

[@homerotreto9391]

and mentos, for good measure

[@meltedcheese9301]

and smoke weed while drinking it

[@WhiteboyzaMacc]

i counted the rotations

[@КлиментЦонков]

Chris Moore LMAO me too

[@КлиментЦонков]

Jk lol

[@ochoat4650]

Chris Moore how much ?

[@КлиментЦонков]

Ochoa T If there was a rpm gauge it would've been posible to calulate.

[@dustinmarshall5741]

ahhahhhhAHHAHHAHAHAHHHAHHH

[@Rusoatrincherado047]

A RPM reader in a corner would be amazing

[@kerimca98]

The high-pitch scream occurs at 10k rpm, but the rest yea idk

[@wenethmoon6587]

Anybody else feel really guilty for the abuse they’ve given they’re bikes after seeing this 😭😂 ahah

[@sierrachief117]

My bike spends its life on the redline.

[@justsaiyansteve]

Nope, not at all. Thats like telling a human to go shovel dirt for the rest of his life.

[@reinbeers5322]

They're made for this. With quality components, this is no problem.

[@kaifriedrich1763]

I'm only giving 8000 rpm to my Honda , but she can do 10500rpm before the red area begins

[@jedr.3494]

OIL!!! Oil is the savior!!

[@honokafrl2469]

1:30 Old 4AGE Engine 2:00 New AE101 Engine

[@hongthainguyen5334]

Lmao

[@based_will]

You can play a song by pressing the 5, 6, 7, 8, and 9 keys in a rhythmic pattern while the video is playing.

[@israelruiz372]

5678688695899595959595959595959592859284828;

[@Ryancady010]

israel ruiz that song sucked... Haha

[@shawnkirk4056]

VideoGamePlayer12 i just played the intro to crazy train doing what youve told me

[@danteeAus]

666458989898989

[@DaniBarza]

VideoGamePlayer12 9 8 and a longer 7 is the perfect intro of "smoke on the water" hahahahahhaha

[@bmxcwl34]

2:04 school computers when they're booting into windows xp

[@boostaddict20]

lol for whatever reason when it sounded like it was getting over 12k i started to involentarily back away from the screen lol. like its going to blow up or some shit. thats crazy though.

[@mbaer5]

was waiting for it to send a camshaft through my phone screen

[@brandx4715]

LMAO!! 2 years after you and I did the same thing! I was sitting here,thinking it was going to come apart and come out of the screen....lol

[@AtlasReburdened]

Lol right? Like squinting at headlights on screen but not the completely white comments section.

[@patriotsleepercell4060]

lolol me too

[@dennisschell5543]

I was waiting for a valve to drop...lol

[@hyperboytkl1077]

Amazing! It’s alive and it even bleeds like a real live beast!

[@johnaavang5312]

Dear heavenly Spirit. Thank you for providing us with the direct-port nitrous... uh... injection, four-core intercoolers, an' ball-bearing turbos, and... um... TITANIUM VALVE SPRINGS. Thank you.

[@Rome6426]

2:07 even the springs started to spin

[@testinggameslol9782]

2:05 your phone when someone calls you at 3am and its on vibrate mode

[@MiniMotoAlliance]

Was waiting for it to grenade. Cutting the cam cover open usually isn’t a great idea.

[@Nyuhkkus]

And why would it do that? As long as the components are getting lubricated it doesn't matter

[@edteach5707]

It’s just an opening in a cover. It’s not inside the cylinder.

[@jeremywilliams9470]

Shane Liberty I cut the cam cover open on all my engines for weight reduction lol

[@oldspirit3125]

Jeremy Williams upload a video. You won’t because you’re lying to these people.

[@mukundthorat5672]

It’s a good idea if you get a million views...

[@MrRasZee]

I was edging away fr0m the screen , in case it blew up

[@hondaslave-kd6hi]

Me too

[@nyneshpanchal7711]

Yes man literally

[@aaronalagos739]

Me: I'm so stressed, I do alot of work Overhead cams: first time?

[@beyalora4588]

the engine is currently running at 14k rpm and normal car engines only go to about 7000 rpm

[@Goofiest_Goobster]

1:10 My Heart When i have 12 diamonds in my inventory and i hear a hiss

[@asustech0079]

You'd think at those speeds, the valve springs couldn't expand and contract fast enough to do anything... ?

[@unknowingkoala]

ever tried to compress one of them valve springs? you would probably crack the bones in your thumb doing that

[@asustech0079]

Dexter Tang There's no one that I personally know of that can compress those springs by hand, without a valve spring compressor tool it'd be quite hard to do. It'd take one tough dude to do it, there's no way I could.

[@LykosLykos]

***** Actually, it's not a strange thought. At 14K a spring can actually make it, but at higher revs (let's say, like in MotoGp prototipes, 18K) they struggle a lot, which is why engines enginereed to work at those high rpms comes usually with pneumatic-assisted or desmodromic valves.

[@Proffa]

***** Pneumatic valves have been a reality for ages. For example F1 has had those since 1980's. But system is not cheap, and not for normal road car because it cannot stand hundreds of thousands of kilometers. I'm waiting for camless valvetrains using solenoids or magnetic systems that are currently being prototyped by Valeo and Ricardo. All traditional valve systems however have a valve that jumps up and down. It has to be drawn to cylinder head with quite much power to be well sealed. This causes massive amount of stress to valve structure itself. So that is still not as good as rotating valves which have capacity to reach unbelievable rpm's. They made 14850 rpm so far with engine that was not built max rpm at mind, similar poppet valve engine reached only 5700 rpm. More interesting figure are breathing figures. Poppet valve engine reached 3.7661406 (cubic meter) per minute and Rotary valve engine reached 9.03307406 (cubic meter) per minute. If you can almost triple airflow you can also have same amount of power increase ;) www.coatesengine.com/csrv-system.html www.coatesengine.com/files/theme/csrv_vs_poppet.html

[@030233854914]

***** but we already got some solenoide valve controller ... all electrical

[@superdave2403]

Absolutely amazing!!! Thank you for letting us see that!!

[@timstill152]

That made my head spin pleasantly. But it's not so amazing, you take a simple process and speed it up.