4 Stroke Combustion 4K SLOW MOTION | 33,000 FPS | Clear Engine Cylinder

[@raulbila46]

a moment of silence for those who didn't find yet this automotive jewel. son, you made the whole petrolheads proud. good job mate

[@TROdesigns]

Hahaha, you can't properly enter the gearhead afterlife without witnessing this view of an engine running! thanks for the comment brother!

[@Jimblefy]

Truly awesome indeed :) Thanks.

[@Jimblefy]

@Repent and believe in Jesus Christ Nah. I'm good thanks.

[@aslammohammed3524]

removed my like mate. just to keep it at 420

[@allaboutworksvlog6529]

How much it cost.. good for motor show.. im impressed about that block good talent....

[@bingeciren]

As a mechanical engineer, this is one of the best videos I’ve seen in a long while for educational purposes. I truly appreciate your work.

[@TROdesigns]

As an ME, I appreciate this comment!

[@AlexMkd1984]

you are mechanical engineer😂😂😂😂😂😂😂😂😂😂 stupis human

[@AlexMkd1984]

@@TROdesigns 💩💩💩💩

[@Rodrigo_R.Vieira]

Me too!

[@rcdogmanduh4440]

As an retired Machinist this was fun to watch!

[@MokanElTurko]

I had a stroke once but 4 strokes at once is more awesome.

[@lauritsjespersen2254]

lmaooo

[@fadedbreads]

haaaah

[@babyoil00]

Lol

[@FrostyTheOne_]

I had a stroke reading this until I had 4 strokes at once which is awesome

[@SethiozProject]

and it caused you enough brain damage to think that this is suppose to be funny or something?

[@fauzanramadhan9046]

This would be great for engineering students to see the engine on action

[@Cebok_barengan]

+62 indicated

[@Rsenior1981]

As an understanding of how the four stroke cycle works, yes. But cylinder pressure data is far more valuable. Clear chambers are used in engineering to analyze fuel puddling during cold starts, analyzing carbon accumulation, but mostly for analyzing air flow in the combustion chamber.

[@johndough9187]

This is manufacturing and operation, not engineering.

[@generaliroh842]

Are you +60 or +62?

[@fauzanramadhan9046]

@@generaliroh842 I'm from planet earth thank you

[@mannys9130]

This is the single coolest thing I have seen in all of 2021. I mean that. I watched those slow mo shots over and over. At the end you can really understand spark advancement. The spark fires and starts the burn just before the piston gets to TDC and the flame front really starts to get going as the piston reaches TDC so it has the perfect timing to push down hard on the crown. I'm guessing that shot was taken at a high engine speed, not idle. 🤔 Beautiful work. Absolutely beautiful work. You can also see how some fuel gets trapped between the compression rings, and how combustion pressure gets behind the rings to push them outward and make a firm seal.

[@TROdesigns]

Goddamn, this is the best comment I've had on my channel yet! 90% of viewers don't watch till the end and see the spark go off right before TDC, or the leaked combustion between piston rings...this is why I didn't narrate over the whole thing and let people observe for themselves. Thanks for noticing the details brother!. And yes, high rpm for that shot 😁

[@mannys9130]

@@TROdesigns This was captivating! I had no choice but to watch till the end!!! 😺 Instant sub btw, I can't wait to see what else you make. The clear Monster valve covers to show off the desmo valves was really cool too, and the slow mo carb Venturi. 👍 Super duper cool!

[@vacuumpowered6119]

Instant sub from me aswell i never seen a engine run with seetru cylinder

[@valeriotriolo8505]

you can also notice that if you give it slightly little more spark advance the air fuel mixture would be better exploited!

[@cumbob]

@@TROdesigns at least some of us noticed lol. It was cool to see the pressure move the fuel around in-between the rings before the flame front was even visible

[@armedfarm3429]

This is amazing to see, the oil, the fuel, the exhaust, the spark. Make you wonder how an engine can hold together for thousands of hours of use.

[@TROdesigns]

Thanks! It's amazing this acrylic one held together for as long as it did

[@noahway13]

That is what I always have thought. The force of explosion and the speed of the moving parts... People take for granted how well engineered these engines are.

[@thegadfly1951]

Probably because there was over a hundered years of r&d into ICE. I cant even imagine the number of failures that must have taken place to mature the techology as it is today...

[@uhtred7860]

What is amazing engineering is Honda's mid 60s RC149, it was a inline five cylinder, with a Bore of 35.5mm and Stroke of 25.14mm, Into this 1.39 inch diameter cylinder Honda stuffed four tiny valves and a centrally located spark plug. And its revved to 21,500 rpm!!! and was good for 130mph, it won the 1966 world 125cc championship. They also had the equally amazing RC166, an inline 6 cylinder 250 cc.

[@researchandbuild1751]

Metal is a lot stronger than we typically think.

[@Offroadwithtom]

Hands down the best Video I've watched in years

[@TROdesigns]

That's a helluva endorsement coming from a guy who wheelies Hyabusas at 183 MPH!!!

[@tvdinner325]

This SHOULD be mandatory in high school.

[@manedwolfwithagmailaccount1478]

@@tvdinner325 watched this in my hs engineering class. Much better explanation than the CGI models or paper diagrams

[@thedownhillerboy]

@@tvdinner325H.Goring? I thought you was dead since 1946🤔🙄. Yup👍, and everything else that really matters like how to properly cook homemade food versus eating junk food, endoctrination on leading a healthy life style on multiple fields,exercising indoor and outdoor, human body physiology... Totally not the crap that they use to fill our young minds with garbage 🗑️ 🗑️🗑️.

[@TROdesigns]

You can lead my propaganda team any day!

[@MaxwellBenson80]

Badass! I would LOVE to see a 2 stroke version of this!

[@TROdesigns]

You're not the only one! I'd love to see that

[@PSWii360onBaSS]

I feel Ike the entire block and crank case would need to be acrylic.

[@RonnieMacJr69]

A 2 stroke version might be a little more challenging if the plan is to use non steel piston rings, as I’m sure the plastic rings or whatever they are must be easier bent and expanded with heat which would raise the possibility of snagging a ring on a port. That accompanied by the fact that here the hot exhaust gases are expelled through the real steel head and valves but in a two stroke all the hot gases would flow out of the exhaust port in the cylinder. I don’t know anything about acrylic and it’s properties but those would be my concerns

[@TROdesigns]

@@RonnieMacJr69 nice post. The rings catching on a port is definitely a possibility. The PTFE rings are much more lightly sprung than the steel rings so that works in it's favor. I had a thermal camera going when I ran this engine and the head was MUCH hotter than the cyl. So yeah, that exhaust port is going to be roasted quick...Acrylic is surprisingly strong at room temperature lol

[@RonnieMacJr69]

@@TROdesigns it might be possible if you made a cylinder with a water jacket and pumped coolant around, if you are going to try it I would use a cheap pk80 Chinese bicycle motor their like a $100 they’re turds but hey they run. Look forward to seeing more of your work man. Best of luck and you earned a new sub.

[@thomasladner2713]

Dude this is golden for automotive schools around the country. Actually being able to see it in live action slow motion, rather than see a computer animation or 2D drawing in a textbook makes it much easier to see how it works. Sadly though, now that I’m working in the industry, I see that everything is going all electric, and there will come a day in our lifetime when automotive schools will stop teaching combustion engines…

[@Juice-iv5jx]

Just watched this video in class at my community college!!

[@kylecurry6841]

Dude, you've taken this to the next level. I thought the see through cylinder head was cool, but this is far more note worthy. Being able to actually see what happens with blow-by at the rings is insane. Wish we had boost to work with here lol.

[@TROdesigns]

Thanks for the comment brother!

[@pastelskies8466]

At least it's not oil blow-by from crappy, worn out rings. lol He used Teflon rings!

[@Choober65]

This could be a brilliant tool for cam design.

[@nykola331]

it's focking crazy.. waooo

[@101jchristensen]

I knew how IC engines worked as a teenager. My father was an engineer, I grew up adjusting carburators, playing with air fuel ratios, timing before TDC, and you could picture what was going on in the cylinders in your mind. But to actually see it? This is awesome.

[@JayDee-xj9lu]

Years ago I remember you could buy a see through glass spark plug, so you can adjust the mixture by observing the color of the flame. But nothing to this detail. Excellent stuff. How long will it run until the plastic is going to melt.

[@victordemaria9720]

Amazing work!

[@TROdesigns]

Obrigado Mano! I appreciate your comment and the Real!

[@aryankarthik_r]

As a motorcycle enthusiast, working process inside of an engine cylinder was just an imagination for me. I'm so satisfied after watching this. I can't express how beautiful this is. Thanks a ton mate !!

[@TROdesigns]

What a comment! Thanks a lot dude, glad you dug it!

[@mimose97]

Me t1aoo, and imagine that this 4 stroke cycle is running hundreds of time in a second when your engine is working at highter RPM... fantastic!!!

[@shaderblue2555]

To my knowledge this is the only video where you can view the valves interacting in the stroke of the engine which is absolutely incredible. Amazing video well done

[@TROdesigns]

Only one I've seen...Thanks man!

[@NeillWylie]

The accuracy and precision of valve timing always blows my mind.

[@a64738]

Yes, it supriced me to see that the exhaust valve seems to close at the last moment moving at the same speed as the piston so close that the piston is almost pushing it shut...

[@GladiarOfDestruction]

I like how you went straight to the point in the first 45 seconds

[@TROdesigns]

That's how I roll! Nobody's trying to watch some BS minute long intro. Hit em with it right off the bat!

[@JoshuaTootell]

Under rated

[@tjberry5899]

Automotive, motorcycle and boat mechanic 26 yrs…this was absolutely amazing! I’ve never really been able to animate the 4 strokes of a modern engine with my hands and words very well. Intake, compression, power, exhaust all seem self explanatory to me lol. This video brings a new meaning to the phrase “a picture is worth a thousand words” 😉 Keep up the good work!

[@TROdesigns]

Thanks a lot brother!

[@user-bk9km3sn9f]

Кутак кысты

[@firesquare16]

This is the best thing on KZbin. By far. Mechanic of 20+ years. This is beautiful!

[@TROdesigns]

That's high praise from a guy working with these engines everyday!

[@chrisweber5327]

Incredibly done from the fab work to the photography. Thank you for sharing this with the world!

[@TROdesigns]

Strong comment man, thank you!

[@stevesmith3033]

This is so awesome! I had a 1987 Honda XR 80. It was one of the first dirt bike engines I took apart and did mods to as a teenager. As you were assembling the engine, I recognized a lot of the same parts and instantly gave me flashbacks in time. I also ran it without a muffler and even your sound on here recalled my memory of instant recognition. Thank you for this. It was also enjoyable to watch your machining process.

[@TROdesigns]

Awesome! I thought it would be cool to see the assembly without the cylinder blocking the view

[@TheGamerfreak1555]

Seeing comments about the oil, the combustion, compression getting past the rings but I have yet to see someone point out that the scavenging effect is super apparent and easily visible in this video. Wonderful job

[@TROdesigns]

You're the 1st commenter to mention this - good eye!

[@jaredkennedy6576]

That's wild. I've seen a few of the clear cylinder head videos, but this gives a much clearer view than that.

[@TROdesigns]

I agree - Gotta love the overhead valve engine doing it's thing!

[@Tagames_70]

4⁴⁴

[@Tagames_70]

3q0tt⅞w2442049⁰²1²¹¹¹03

[@vector006]

@@Tagames_70 I think your cat is walking on the keyboard again

[@armandbeyers2935]

The amount of time and effort that went into this is astonishing mate , couldn't have done it any better and it's such a underrated video . Best example of how a engine works in real life conditions and shows how inefficient they actually are with all the unburned fuel leaving they exhaust . Cannot get enough of this video mate absolutely epic job ,well done and thank you for your efforts sir 👌👌

[@TROdesigns]

Thanks for the epic comment! I tried to make something petrolheads would love so I'm glad you guys enjoyed it

[@giovinis]

yup gasoline are injected as liquid imagine how thing changes if was injected as super ho vapor

[@galerinha]

@@giovinis this is what turbocharged direct injection does

[@KainRazielMT]

>Says the video is underrated >Video has almost 7 million views Seems like engines are not the only objects having strokes.

[@Brasileiro222]

​@@tomdomenico Bozo ?

[@spacepotato2277]

I have always been a visual learner, and have always wanted to see this: a real 4 stroke engine, really running, with a transparent cylinder and super slo mo camera so you can watch it all happen for real. This is legendary.

[@CarLoverPhotography]

Subscribed this is so much easier than trying to explain how an engine works to my non mechanical friends It clearly demonstrates the oil system, cooling system, valve train, combustion, compression, and exhaust happening in real life thats so sick

[@ryanbernard5287]

The patterns of the flames inside the cylinder are simply mesmerizing. Awesome video

[@177SCmaro]

Basically, what you're seeing is imperfections in the air-fuel mix - areas of richer and leaner mix that create swirling patterns of flame. It can be quite beautiful when slowed down like this.

[@luckyPiston]

@@177SCmaro Yeah its barely a vapor which is what would actually be there in a proper operating temp motor, still it shows the patterns with is important and interesting.

[@inebriatedengineering6288]

This is literally the most adorable sounding engine I've ever heard.

[@Evanzie]

This needs to be shown to anyone learning about engines!

[@richardsidler]

Four stroke internal combustion engines particularly.

[@JasonMisterDude]

Man, it's awesome watching the rings doing their job and how much activity there is during combustion. Even the oil sloshing around inside the wrist pin!

[@TROdesigns]

Lots of details to check out in slow motion - good eyes on the wrist pin sir!

[@TheDiamoniteG]

my teacher had a full acrylic cylinder back in 2004. he didn't have a high speed camera nor a youtube channel to post it on. He did show us how different gasoline and alcohol burned while running with the lights off, while tuning between the 2 fuel sources while it was running. Glad someone could put this together so we can share that with everyone on the internet now. Everyone I told this too that wasn't in my class said it was "impossible" - and here we are.

[@Biosynchro]

I'm so over people saying that things like this can't be done. Yes, there are limitations, but it's an educational tool.

[@nizarrazzouk9385]

It's just crazy how close the exhaust valve gets so close to the piston, almost hitting each other 😱

[@tomasdaniel6510]

yes the timming in modern engines is critical… tolerances betwen piston going up, and closing valve was in few millimeter distance

[@0xf7c8]

Imagine what happens when you cut the belt 😅

[@bubbleman2002]

@@tomasdaniel6510 There's lots of modern engines that forego the interference design in the name of reliability and bulletproofing. The Toyota 2ZR-FAE (1798cc) has a non interference design despite having variable valve timing and lift, as well as a timing chain in lieu of a belt.

[@altortugas5979]

What surprised me was the exhaust valve opening before the piston was all the way down. Is the cam timing off, or is it supposed to be like that?

[@nizarrazzouk9385]

@@altortugas5979 no its correct it is supposed to be like that.

[@alexmaclean1]

I'm impressed with it holding up so well, I guess all the extra work at the beginning was definitely worth while!

[@jeteon]

Answered so many questions I had. Great work.

[@TROdesigns]

Glad you got something out of it! I appreciate the Rand brother! Much appreciated

[@SakisTheDrifter]

Glad to see engines like this one be alive. I have the 50cc version of it on my honda cy50. I ve seen transparent cylynder heads and now transparent cylinder. Make a combination of these two and you will have the ultimate machine to stare at until it seizes up :D

[@TROdesigns]

These engines are hard to kill, but an all Acrylic top end should manage it lol

[@ejkk9513]

I don't think you could do an acrylic top end on this engine because it's a single overhead cam design. You would have to do that with a L-head (flathead) engine. Unfortunately, with those engines you couldn't do an acrylic cylinder because the block houses the cylinder, piston and the valves. I think you're stuck with one or the other.

[@ayoutubechannel921]

@@ejkk9513 if you did a two stroke then you could

[@5.43v]

@@ayoutubechannel921 then you have to worry about the rings catching the exhaust port

[@matthews852]

After seeing this I think It’s insane engine cylinders, and especially cranks and crank bearings last as long as they do.

[@asono11]

Wow. I remember some ten years ago I was dreaming of being able to see a slow motion video of a running engine and back then there was only one, bad quality video available on YT. I basically studied every single frame of that video to fantasize about how it would look IRL. Fast forward today and we can see the whole action through an acrylic cylinder in super high definition. Amazing. Thanks for uploading this!

[@TROdesigns]

That makes 2 of us brother!

[@GrillerGT]

Thank you so much for this. Just a few days ago my daughter asked about this precise topic, and while I tried to explain it as best as I could, nothing beats looking the actual thing xD The look in her face as she watched this was priceless ^^ Now I'm sure she knows how it works heheh.

[@TROdesigns]

Glad I could help the cause!

[@tadeusoares5648]

Thank you for giving us awesome footage right in the beginning of the video!! excellent work! Please make more!

[@TROdesigns]

No intro, just give people what they came for! Thanks for this awesome comment and for not demanding a 2 stroke version lol 🤙

[@reaper5631]

Yup

[@Summeron253]

Very cool! I love how you can see the combustion gasses flow through the different ring lands.

[@alfredragnarsson9359]

Best video of 2021 for sure, just love seeing the valves in action, now we just need an clear block to show the function of the bottom part of the engine and this will be every engineering teachers dream come true. Keep up the good work.

[@spacesaver100]

An excellent combo of real time, time lapse, and slow motion footage. Great video. 👍

[@TROdesigns]

Glad you liked it! everyone has different opinions on that, but I did my style

[@AlfinoFr]

Not a thousand horses 2JZ, not a screaming V10, not a lap around nurburgring... This... is what a petrol head's wet dream looks like

[@TROdesigns]

A howling 911 GT3 RS comes close, or a Mazda 787 WOT. Thanks for the epic comment brother!

[@TurboVisBits]

idk my 1000hp 2jz is pretty wet dreamy.

[@sierrachief117]

The piston speed at idle was waay higher than I ever expected. Being a motorhead that finds joy in engines and wheels, watching this was like a fuckin dream come true!!

[@TROdesigns]

I made this video for guys like you so glad you enjoyed it man!

[@elvenisar]

800 revolutions per minute = 13.3 revolutions per second

[@sierrachief117]

@@elvenisar I know, right! Blows the mind

[@michaelskinner896]

Very cool video. Beautiful fabrication work and implementation! It was interesting to me to see how effectively the exhaust gases escaped even when the piston was at BDC. I had always figured that the piston still needed to travel upwards on the exhaust stroke to fully evacuate the cylinder. But clearly there is still tremendous pressure inside the cylinder even after the piston is fully extended by the power stroke. Thanks for the visual clarity.

[@TROdesigns]

Thank you very much!

[@str8xrippin]

Air will always move high pressure to low pressure regardless

[@nithianathan7962]

Hence the effectiveness of the 2stroke engine.

[@thisusernamecrapre]

I was surprised by the exhaust flow too.

[@vishwajeetholkar3029]

As a mechanical engineer.. I can truly appreciate his efforts. Material selection and manufacturing process for rings and cylinder is really good. Awesome video... Great work... Kudos...🙌

[@ianferreiraian]

This is amazing. The best video of a working engine by far. Congrats and cheers from Brazil!

[@TROdesigns]

Obrigado Mano! It's something I always wanted to see, and it seems like I'm not the only one 😁

[@cainento]

"Obrigado mano!" Adorei esse cara hahaha

[@gabrielvieira6529]

+3

[@brunoborssi9109]

🇧🇷🇧🇷🇧🇷🇧🇷

[@TROdesigns]

Do Brasil!!! Have some Picanha and watch this video lol 👍

[@mishakuldman2879]

Очень интересно наблюдать за такой работой двигателя, спасибо автору за проделанную работу!

[@Umoddafokka]

Привет.. Как Ваши дела?

[@Umoddafokka]

@Nagato is better than Punk Naruto Приезжайте сюда, в Россию, и у нас будет водка.

[@Umoddafokka]

@Nagato is better than Punk Naruto brother, i did not say anything bad. What i said is "come to Russia and we will drink vodka". 😂

[@Umoddafokka]

@Nagato is better than Punk Naruto oh it takes a little time to drink alcohol. 😁 You'll get used to it.

[@kennylaw559]

As a gearhead and an automotive tech of 20yrs the efforts to display this is much appreciated....super cool

[@RH-xm5uk]

This reminds me that I once had a spark plug with a glass port that allowed you to see inside the cylinder. It was a tool to see the flame color. In days where you could adjust the fuel/air mixture yourselves, the flame color was a great help. The aim was to have it as blueish as possible. Funny enough, your flame color in this video is deep red. Really the opposite. But apart that your fuel mixture is totally off :-), what a great video. Amazing that the perspex has no problem with the heat, the pressure, and carbon deposits. Great craftsmanship!

[@rchelihaven5027]

A Gunson Colourtune. Useful bit of kit!

[@DrFiero]

It probably doesn't help the AFR that the CR was dropped, and there's no pipe. But then again, with the lower flame front heat - it lets the engine not turn into a molten puddle after 2 minutes!! :D

[@glumpy1024]

Had a colour tune as well. I wasn't sure about them. You could only really tune the idle mixture as wasn't possible to see the thing Under load and run beside the car. I did use it Tuning Triple SU carbs though. Least the idle was right but with a Million different needle profiles, who could tell the rest.

[@onemoremisfit]

One thing about the rich mixture, I'm sure he can't run it long enough to get it up to operating temperature so we're always seeing it run cold and choked.

[@cavecanem7062]

@@onemoremisfit it could be even that he purposedly kept a rich mixture since richer = red flame and colder combustion

[@chemistrykrang8065]

This is the best illustration/demonstration of how a 4 stroke works that I've ever seen. It didn't really show me anything I didn't know, but it took exactly what I knew was happening in my head and put it clearly in front of my eyes... and as a polymer chemist I'm loving the plastic barrel even though it's definitely going to overheat really quickly.

[@TROdesigns]

Thanks man! I ran the engine through short, 20 sec or so cycles so it didn't reach operating temp. But after a WOT run, I guess it reached "glass transition temperature" - part of the cylinder walls near the top of the cylinder crystallized and a chunk blew off. The piston rings left an imprint into the softened material once I stopped the engine. You'd know a ton more than me about it!

[@chemistrykrang8065]

@@TROdesigns Yeah as soon as you hit the Tg it'll start to deform - this is the point where the polymer chains can start to move relative to one another. Still, it did the job long enough to get some great footage, so mission accomplished, really. I seem to recall that engines with some transparent components have been made in the past for research purposes. I recall attending a talk by the late great Peter Williams, who was both a gifted engineer and motorcycle racer, where he mentioned such a thing. I seem to remember parts being made out of exotic materials like sapphire... so it's remarkable that it worked for as long as it did with PMMA.

[@TROdesigns]

I know Lotus had a sapphire crystal one, would be nice to have one of those! I knew the PMMA cylinder would function theoretically from the hoop stress calculations, but not for how long. It was a matter of the rate of temperature change while the engine is running, plus the addition of dynamic pressure change which amplifies the stresses quite a bit. I was shocked myself to see how long it lasted! I'll have to check out Peter Williams

[@workoholekhh7542]

People can teach this video in classroom because show us everything in theory we learned before. Thank you man. It's awesome.

[@deniskushnarenko2258]

Молодец, сколько подготовительных работ, для студентов и спецов по ДВС данный ролик будет очень поучительным! Спасибо Вам. Илону привет)

[@3800S1]

I have been waiting for this footage all my life, a see through OHV engine in action! It's so cool seeing and confirming what I knew about the exhaust gases throwing themselves out as soon as the valve opens rather than the piston doing much of the work.

[@coachmen8508]

What an absolute marvel !! A Marvel of engineering this acrylic engine but also of the internal combustion engine ! Truly a marvel of engineering. All of the precision and the tools and of knowledge and the resources to make that all possible.

[@andynaka]

This is one of the most detailed videos on youtube showing how a combustion engine works, i've seen others but only this one shows things like the oil lubricating the piston in real time and the exhaust fumes appearing instantly on the outside at the slightest lift of the exhaust valve, which gives an idea of how much pressure is held inside after combustion, very nice video!👍

[@dave1066]

This is an amazing build/mod and the best, by far, demo of suck, squeeze, bang, blow I've ever seen - for real instead of animated. Animations are OK (in fact they can be excellent educational aids), but to actually see the whole process is absolutely amazing. Well done on a brilliant build and the best video I've ever seen of a four stroke cycle!

[@rahulnalamasu2071]

As a ME this is one of THE BEST video of IC engine I have ever seen on the internet. Truly amazing and hats off for ur time and money spent on this!! ✌️

[@johnwalker194]

I agree with manny ! This is the most interesting video I've ever seen on the internet !!! The shock waves coming down through the piston rings are amazing to watch and I loved the camchain view and did we see the points open and close behind the flywheel also ? You-tube has been completed !!!

[@TROdesigns]

I tried to pack as much cool shit as I could into 1 video, glad you liked it man!

[@johnwalker194]

@@TROdesigns wicked mate, thank you for reply also 😊 yeah, was cool watching the little Honda doing it's thing in real life !!! I have maybe ten of these little OHC singles in various stages of restoration and even a fuel injected version that I'm installing into a 1975 trials/enduro frame 😉 thanks again man and I'm a definate subscriber now, John walker !

[@TROdesigns]

@@johnwalker194 Holy shit that's a lot of Hondas! Sounds awesome man

[@Reg4x4]

Well... Maybe not the best video in "whole" of internet 😁🤭 but definitely the best one on YT! Super efforts are appreciated 👍

[@TROdesigns]

@@Reg4x4 lol. Surely there's more interesting videos on Prawn Hub than KZbin. There's some serious gearheads on here, I love it 🤙🏼

[@cnhaygood1865]

Not only great for the slo-mo part, a great tool for explaining the 4-stroke process. I wonder how long this setup would actually last under normal conditions. Great video!

[@Nevir202]

Normal meaning mounted and driving? Probably 10 minutes. Problem being plastic doesn’t carry away heat very fast and as soon as you overheated the cylinder wall, it would lose compression.

[@sanjaysakhalkar3813]

Heat will melt acrylic soon.

[@dcfuksurmom]

Not long with acrylic, If he managed to cast it with thick glass it could be interesting.

[@sbdftw1702]

As somebody who is trying to learn more about how internal combustion engines work and how they transfer the power to the wheels on a vehicle, or whatever else they’re made for, this is awesome. It’s neat to see what the piston does but also watch the fuel/air mixture and ignition.

[@cnhaygood1865]

@@sbdftw1702 You are correct...a great learning tool. Internal combustion engines have always been a combination of timing, chemistry, longevity.

[@FooodConfusion]

Thats eyegasm for those who love IC Engines; you nailed it, Bro.

[@pavelperina7629]

Awesome. Once I tried to realize how steam engine works and despite it's completely different I have some expectations. For example, I expected that fuel is completely burnt in the early stage of expansion and expanding and cooling gas does the work. I did not expected that it still burns when the exhaust valve opens and it also seems to open just before the piston reaches the far end.

[@tmac1572]

Interesting to see that globs of oil get thrown up to the wrist pin on the upward stroke. I also thought the fuel would be atomised more than it does as you can see the drops of fuel come through the intake valve.

[@TROdesigns]

Pretty cool to see how the oil is slung around, never occurred to me to even consider that

[@timothybuchman6498]

@@TROdesigns Some additional footage on the relationships among the oil, rings, piston, and cylinder wall would be especially helpful for teaching about engine oil. Are you able to control the air-fuel mixture? It would be interesting to see mixtures that are too lean and too rich.

[@marcushaynes843]

I'm a mechanic, and I know about how the four-stroke engines operates. But I never seen it like this. Slow motion watching that engine running. Very good job on the demonstration.

[@bagus154ble]

This is mindblowing, yet so pleasing to watch, love your works dude. You deserve for more recognition, i think...

[@TROdesigns]

Thanks for the comment dude! I think so too lol

[@prabaprabath4871]

👍

[@bagus154ble]

@@TROdesigns sorry for the miss-spelled... LoL...😂

[@TROdesigns]

@@bagus154ble no worries man!

[@broncobill861]

That was cool as fuck mate thanks for your efforts

[@TROdesigns]

I appreciate that mate, a lot did go into it, so thanks for noticing!

[@isaacsrandomvideos667]

Bloody was, and still is!

[@killerivesy8901]

@@TROdesigns how can’t we notice true art?

[@ИвасМатвеи]

Молодец, а теперь сотвори картэрины!)

[@jasonga]

@@TROdesigns I used to do machining and know how much has go into it, it's a nice thing to see and fantastic as a teaching aid!!! A 2 stroke version with a head made of the same would be truly impressive, trouble is it's getting the transfer ports into it..... but Bravo mate......

[@Jack81631]

THE BEST VIDEO OF SLOW MOTION TO DATE WITH A WHOLE TRANSPARENT ENGINE.

[@michaelbontoft5026]

Very nice. You can clearly see the piston rock at 16:58. Great job!

[@TROdesigns]

I was waiting for someone to mention this - look at the eyes on you bro! There's quite a bit of piston to cylinder wall clearance

[@michaelbontoft5026]

@@TROdesigns I replace lots of pistons at 15 hours because of it. How about a 2 stroke next. Cheers

[@ismailmohammedkajee9084]

I really enjoy your video Chris.. I love how methodically and carefully you put everything together, I personally wish that my vehicle could be done by you, due to your attention to detail. Wonderful to see you working.. makes me want to pursue education in mechanics!!!

[@SaintLouisTom]

by far the best video of this type i've seen and i feel like i've seen quite a few of them on youtube. This one blows them all away, thank you for making it.

[@MikeDLees]

Mesmerizing. Thank you for your efforts to produce this video. It makes me realize just how amazing the internal combustion engine is, and also how ancient it is, relative to new EV technology. None the less, fantastic to watch.

[@TROdesigns]

It's interesting to see the inner workings of this archaic technology - definitely beautiful to watch. Thanks for the comment man!

[@TheVingadorT]

What's "new" about EV?

[@freddieparrydrums]

EV sucks

[@MiguelChaGra]

Great view of the workings of a four stroke engine, particularly the power stroke. Finally we can see the dynamic of the fuel-air mixture combustion, especially right at 17:51 of the video. It would be fascinating to see the dynamics of an abnormal combustion event such as detonation, but I’m sure that is a major challenge to produce and the plastic cylinder may not survive it. Excellent work, thanks TRO!

[@bendenisereedy7865]

Fascinating! Well done! It makes you realise what a 9:1 compression looks like and how strong an engine must be to survive that for years.

[@Zombytes]

Well it is a honda ha

[@ZilogBob]

I always thought that being able to watch the flame colour with a "Gunson Colortune" transparent spark plug was fascinating but your video gives a whole new complete view. Thanks for all your careful work in making and showing it! 👍

[@wrightvcx2249]

This is what youtube was originally made for.

[@theoriginalcripster]

After 30 years of tinkering with mechanics… I finally understand the term “2 stoke”. All thanks to this video! Thank you! Edit: yeah, I know it says “4 stroke”, but you get my gist.

[@tomtheyankee3646]

I've always wondered why we didn't start with electric motor first its such a much simpler design than the internal combustion engine but there a reaL work of art and a treat for the eye to see in action thanks for sharing 👍👍

[@poonannyjones2375]

We did! The electric automobile was prototyped about three years before the internal combustion automobile. The issue was the same as it is today. Limited range due to low energy density compared to fossil fuels

[@tomtheyankee3646]

@@poonannyjones2375 well excellent videos man gets the brain juice flowing with ideas..💆‍♂️

[@tomtheyankee3646]

@@poonannyjones2375 so have to make a video update on the new technology that has come to change that I would definitely watch that video update from you .

[@JMB676]

This great most interesting part for me it to see how early the exhaust actually starts to come out of the port after burn n how little it needs to b open for it to escape. Thanks for sharing this

[@TROdesigns]

It almost looks like the exhaust gasses escape before the valve is open! All that cylinder pressure helps it evacuate

[@mannys9130]

That's primarily why all engines are loud, and partly why diesels overall are very loud (diesel engines are mostly very loud because of the violent combustion event but their exhaust is loud because of the high pressure valve pop). The pressure in the cylinder is very high even at the power stroke's bottom dead center. When that exhaust valve opens just a hair, it's like popping the cork on a champagne bottle or like a bullet leaving a gun barrel. That blast wave travels out the exhaust port, and then the piston moving up very rapidly to push the rest of the gas out really shoves that gas hard and makes a secondary compression wave to follow the initial pop of the valve opening to release the high pressure. Usually at high speeds, the fuel air charge is still sorta burning that last little bit when the exhaust valve opens and that's why you see the flames coming out of the very short header pipes of top fuel drag race cars when they launch at full throttle. This is why things like the Atkinson Cycle engine were developed. The Atkinson engines actually hold the intake valve open while the piston starts moving up for the compression stroke. That pushes some of the air-fuel charge back out of the cylinder. Then the intake valve closes when the piston is 1/4 or 1/3rd of the way up on its compression stroke. They have high static compression ratios. By compressing a volume of fuel and air smaller than the full cylinder capacity, the charge has more room and time to expand and cool compared to a regular Otto Cycle engine which compresses one full stroke and expands one full stroke leaving leftover pressure that is wasted as that exhaust valve pops open. The Atkinson makes use of that wasted pressure to continue pushing on the piston that extra little bit and the cylinder pressure is lower at the power stroke BDC and there's less of a pop when the exhaust valve opens. By having a higher static compression ratio, they don't lose a lot of ratio by giving back some of that air-fuel volume during the start of the compression stroke. The dynamic compression ratio is a more normal amount so 87 octane works fine. It makes a lot of sense! They are more efficient than standard Otto Cycle engines and THAT is why hybrid EV cars use them! 😺

[@JMB676]

@@mannys9130 thanks brother for the explanation. Thanks for sharing lookin forward to more

[@knotical689]

With nearly any type of valve, 90% of flow is achieved by 10% opening. Doesn't take much for most of the gasses to escape

[@Choober65]

This is the BEST video on KZbin, or at least in the top 4 IMHO. Amazing to see total burn. Never thought that happened, but I think I see one of the valves opening a little too soon? This one on the right in the initial showing. By the way, why aren't normal piston rings overlapped like that, it makes a lot more sense to me to do it your way?

[@Methintic]

16:57 Look at those mixtures.. sick man 🥶..

[@TROdesigns]

Crazy isn't it? Thanks for watching!

[@exoticg9]

One of the coolest things i've seen! 🔥

[@TROdesigns]

Fook yeah man!

[@kobayashimaru8114]

This is probably the cleanest and most visible version I've seen on KZbin. Very nicely done.

[@MrFuel2burn]

Very impressive. There was a lot of skill that went into creating this demonstration. Although not intended for longevity, I'm curious how long the engine has been operational.

[@mofosoto]

I’d love to see this back on a bike. If you could also find a way to tune the exhaust to really accentuate the bubble machine sound, that would be epic!

[@TROdesigns]

I was looking into that - there is an XR75 for sale on CL nearby...

[@mofosoto]

@@TROdesigns I might have missed it but how long can the engine run before it gets too hot and starts to wear or melt? If there's a time limit, I wonder if you could design it to cool better. Like more water passages with its own separate system or something. Maybe glass would just work better though?

[@TROdesigns]

@@mofosoto I didn't include the thermal camera footage, but the cylinder never got hotter than the GoPro next to it! I ran the engine through about 50 start and stop cycles. It's likely it would lose compression at operating temp

[@BareFootDuck]

It's mindboggling as to the speed that all this is happening. Love how the piston syncs with the camera at times.

[@eadams1975]

Excellent work. Very noticeable when then fuel charge losses it's atomization simply due to the cylinder wall being so smooth. (Also why it's always a bad idea to mirror polish intake ports, creates solid drops on the smooth surface instead of keeping the charge atomized). Outstanding work!

[@JT_70]

So we weren’t helping at all and did tons of unnecessary work porting and polishing the intake and exhaust ports when we built high-performance heads?

[@eadams1975]

@@JT_70 porting on both sides works great,however polishing should only be done on exhaust side. The intake side can be extrude honed for best flow while keeping charge atomized

[@Taka_6511]

Mankind is trying to make this technique a relic of the past.

[@TROdesigns]

I hope not!

[@CornellSmith-c1n]

Someone get this man the Nobel prize for excellence. Good lord man all I can say is thanks for the tremendous effort doing this.

[@volvo09]

Great work, that's impressive attention to detail.

[@TROdesigns]

Thanks for observing the details 😄

[@omgitzsteg]

Damn that's crazy, I bet this video goes viral

[@TROdesigns]

If it doesn't get a couple Millie views, I'm making a kitten mitten video next lol

[@omgitzsteg]

@@TROdesigns @PabloThePaw is down for some kitten mitten action.

[@jaxonblade1659]

Magestic. The best 4-stroke (4 step times) engine video i ever seen.

[@TROdesigns]

Thanks for the awesome comment!

[@АнтонПодковырин-о5б]

Сколько работаю мотористом, но то что вы сделали шикарно:) прям залипательно

[@TROdesigns]

Thanks man!

[@surajpawar7724]

the GREATEST KZbin VIDEO I've ever seen🙏 Best Regards, 🇮🇳 I N D I A 🇮🇳

[@TROdesigns]

Thanks a lot man!

[@duckbizniz663]

Great demonstration of a 4-stroke single-piston combustion motor. Transparent combustion chamber allowed us to see the 4 separate cycles versus 2-stroke motor. The 4-stroke engine also sound different from a 2-stroke engine.

[@justtl5885]

Seriously badass. Nice work!👊🏼

[@TROdesigns]

Thank you sir! 👊

[@viewererdos]

00:13 This sound makes me laugh so hard.

[@udayrajvishwakarma9703]

This is one of the best video I've ever seen. Absolute masterpiece. Hats off to you for the idea and execution.

[@TROdesigns]

Thanks man!

[@jeffystevens]

Whoever started calling it "suck squeeze bang blow" is a genius. It's too funny sounding to forget

[@igor_klinskih]

Круто! Теперь не только слышно но и видно как все работает и двигается поршень.

[@jarrydlee7906]

Best video I've ever seen. How any engine can run for more than a few seconds is amazing to me

[@ЕвгенийКозлов-з7м]

Занимательно как давление проходит сквозь поршневые кольца. 👍