Get rid of friction and see the power differences. Graphene dust or silicone lube could work.

Can you demonstrate an H-4 next?

Beautiful sound of v8 engine

I am in awe of the amount of funding you possess to have that many pneumatic pieces.

build an air powered rc boat!!!!1111!1!!1!1

@〘 Hengem 〙 This is Lego Elon Musk

​@Michele Mehelean m e t a l b r i c k s

Not a rocket but a figure

That already happened

Yea, just have to wait 6 more years

@Windhelm Guard You seem to be confused about how this works and are attached to one part that you know. The flat vs crossplane dosen't really affect the sound profile on this because there is still a piston discharging pressure at the same point in time that it would have previously. Honestly you should have taken more issue with the fact that it's a 2 stroke instead of a 4 stroke. Or the fact that just listening to the audio does, in-fact, sound pretty similar to an I-4 diesel....

@Brundin Grabe it still wouldn't sound like any four cylinder diesel engine, because they're pretty much all flat plane.

@Windhelm Guard That's advantageous when you have a counterweight, and are talking about a lot of mass over a distance. The mass is negligable to the power here, so it's more advantageous to go with 90 degree timing.

@Tony which is weird because the 4 in the video is in a cross plane configuration, whereas modern diesel engines are almost universally flat plane. what this means is that the cylinders in the video are 90° out of phase, which is a terrible configuration because it generates a lot of imbalance. in a flat plane configuration they're 180° out of phase, which makes it so that the two middle cylinders and the two outer ones are always moving in opposite direction, thus cancelling each other out.

@GreatCentralGlory Some are, but everything that actually tries to produce high efficiency will inject steam on both sides of the cylinder, to avoid loosing energy from the cylinder cooling down.

Without really speaking.

i seriously LOVE this guys channel no annoying tts or voiceover just PURE video and subtitles

Classes that delt with trades like woodworking, car mechanics, and others we slowly phased out over the years. You can blame whoever cut the finding.

Now I'm just remembering that time I built a model V8 engine out of K'Nex. I can't remember if I built a crossplane or flatplane crank, just that both were possible with my layout. That beauty took up a whole shelf spot as a conversation piece for a while.

Lol you think schools are for education 😂

@ArcOsprey how far can a tank of compressed air get you? On that note, if a tank of compressed air I could get you a reasonable distance. Rather than gas stations, how about compressed air refill stations. . . Idk lol

It's amazing what small pieces of plastic and air can do. Imagine what could be done with pieces of steel and hydrogen combustion. The energy and technological interests are evident.

All you need is a powerful compressor powered by a battery, but there you’ve got an electric car

@jroj assengard an engine is nothing but an air pump my man, so... Yeah. No difference. Just louder.

@pyropulse well you have a good point but as you said yourself, as soon as the lengths or even the shape of individual exhaust manifolds differ you can hear a faint but noticeabal difference. this is the case for a lot of engines, different shape with transverse engines, different length for longitutanal ones. it's a huge difference furthermore if we have two cylinder banks (mainly observable with V8s) and two exhaust lines. when you equally fire left-right-left-right (1-5-2-6-3-7-4-8 or 1-6-3-5-4-7-2-8) it's quite harmonic but for most american models you go left-right-right-left-right so you have two cylinders firing right after another in one bank and in one exhaust-manifold and -pipe (e.g. 1-5-2-6-7-3-8-4). that's a big part of the gurgeling "american muscle burble" sound. also as pointed out before your firing order in essence comes down to the structure of the crankshaft which in turn brings different secondary imbalances which requires more or different additional "counter-shafts" and while the difference is slight and nothing you can put your finger (or ear) on it is noticeable.

​@JNaWK what? xD where the hell did you get that from? sorry, but that's the most ridiculous thing I've read this week. what happens in an internal combustion engine is an explosion very much so. the kicker is how fast your "plain old fire" happens (up to 4000 times a minute or 67 times PER SECOND) and more importantly that it happens with a huge increase in volume and/or pressure. if that doesn't satisfy the definition of an explosion than god knows what will. there are even see-through builds which pretty much makes the argument redundant. ukposts.info/have/v-deo/opSIZapvqW6iupc.html

if you are having literal explosions in your cylinders, you are having a bad day. in regular operation, its just plain old fires, many times over and over.

@Benjamin Watson Pneumatic air pumps basically but turned up a notch

That's how they made the sound effects for hill climb racing probably

@Michael Ambrose The v6 sounds more like a v8

Yes, I also noticed the sound! it's like starting up after a long downtime. The inline four is the most balanced, but the sound of the V-shaped engine is something incredible!🤗

exactly, this sounds very similar to the sound you get at idle with the hood up, hearing all the higher pitched valve click and stuff you normally don't hear

@Michael Ambrose you said it before me, but i commented the same thing essentially

I came here to say the exact same thing. 1.9 PD clacking away

Someone made a Lego wankel engine that runs on compressed air.

I love me a good radial engine

@J024 TWO cats!

remember, the skid marks were NOT from the engine torque overcoming the grip, it was from the mass of the car overcoming the grip

And a Cat, dont forget the cat!

@Ty There's a good answer to that... You can have a radial engine air cooled, You can't air cool a V-12. Without the added extra complexity of coolant and radiators an air cooled engine tends to be more reliable in aviation applications.

Radial engines were used on airplanes for decades. Only got competed out on the high end by turbo props and on the low end by cheap mass produced car engines. So they can't be heavy for the power they give or planes would quickly change to better designs. Number of pistons space and center of gravity could be factors for why they were not populair in cars.

@Cool things in games! the main topic of the creation is still lego so

He used a drill and glue to make it work. This is not 100% lego.

@Ty If you build in real life Round engine would use too much space and weight and eat up too much fuel while those supercar always try to reduce weight and can't use too much space for engine. and as far as I concern for now V and W engines are enough for those sport car on a normal traffic or even on race track. so other types of engine such as round engine would just hardly appear on some heavier duty vehicle such as Tank which need more power and don't care much about space,sound.

Remember that the Lord Jesus Christ died on a cross for you because He loves you so much. He then rose up from the dead three days later The Ten Commandments are called the moral law, (most of us are lying thieving blasphemous adulterer at heart and deserve hell) you and I broke the law, Jesus paid the fine. That’s what happened on that cross. By believing that Jesus died on the cross and rose up from the dead 3 days later and not just confessing your sin, but also repenting of all sin you have done and putting all your trust in Him in prayer, He will grant you everlasting life as a free Gift.

@RCP-1136 yeah and how efficient is the battery?

@John Freeman I didn’t think I needed to clarify “internal combustion engines,” but here we are.

I'm sorry, I'm gonna have to argue with you on that one... STEAM power makes almost no sound when it's brought to just about the pinnacle of generation/application of power/recovery. If you look up Jay Leno's video on his Doble Model E steam car, you'll find that even HE refers to the power of the Model E as 'the Hand of God', because there is NO indication of where the power is coming from. The engine is almost completely silent, and when the inner wheel of the driver's wheel is turned (to allow greater steam power to be sent to the cylinders), the force of the acceleration is like the hand of god is pushing you back into your seat, because the engine makes NO additional sound to indicate it's pushing harder. This from a car that's running superheated steam in a recycling system, so there's no 'hiss' of released steam (since it's being run out through the condenser in the front - that looks like a radiator, but acts to cool the STEAM, not the engine, then returns the 'cooled' water to the boiler system) as the car runs. Truly an amazing vehicle, and the last of the great steam engines.

@RCP-1136 Most inefficiency lost in internal combustion engines is due to the friction generated by its own parts, not noise. Noise is the by product of friction being over come and fuel being detonated. If you put an engine in a vacuum(with oxygenated fuel) you won't hear any sound at all but friction will still have to overcome. And who told you electric motors were silent? I've worked on a LOT of electric motors and they are incredibly noisy things. Now compared to internal combustion engines yes, they are a lot quieter but they make a lot of noise because friction is and always will be a thing, and don't try to at me with, "It's the bearing and the drive shaft making the noise" argument, because that is still part of the motor. All moving objects have their efficiency reduced most by overcoming their own friction, which is why turbine engines are way more efficient than reciprocating engines, especially at higher altitudes where the air is thinner and the engine doesn't have to over come the friction of moving thicker higher pressure air and get even more efficient at higher altitudes.

Important to know that this isn't a toy. He actually made steam engines.. They sound like the real thing because they are the real thing. Just made from different material.

​@FrostyDragonVRE for me i was hearing an AK-47 sound

They work like real engines except without the controlled explosion, so I'm not really surprised.

@Luca Ceccatelli Yeah they definitely sound like a v6 and a inline 3

An engine is just a fancy air pump. So recreating it with air pressure will make similar noises at similar times to the real thing. The tempo of sounds of these models are spot on to the real thing, especially the radial. Sounds exactly like one minus the roar.

Can confirm the I2 engine sounds like my old 90s clapped out Ninja sport bike 😂

Yes the sounds connected dots in my head.

@Tiltorn What you're hearing (and the reason it's so similar to how the irl counterparts sound) is due to certain frequencies matching together. The actual constituent rattles of the lego doesn't have such a low pitch of course, but if you repeat that sound at the same frequency as a low pitch noise, it's gonna create that low pitch sound. This video ukposts.info/have/v-deo/jqN-dmqhlq-Zp30.html shows something like that happening.

I think the sound was modified on purpose. I can hardly see tiny Legos producing bass sounds like that.

Yeah i was thinking the exact same thing, especially when I heard the v8.

Inline 4 sounds like a diesel locomotive

@J O Buying parts seperately from either bricklink or from Lego!

How does one even go about obtaining these sort of parts without collecting 100 unrelated sets and using a handful of pieces from each?

he even reinstated how expensive some of these builds are

I know. If I did a channel like this, there'd be Ninjago lime green and neon orange in the mix.

Nvm, just read your q&a part. Still think it may be worth, especially with a flyweight to see how high you can get steady state rpms

@qwert asdf Very true, my original comment was a bit harsh

@Eclipsemantis cool either way, even then, the commenter hadn't seen it yet so it doesn't matter that they have been around for a long time.

@DOGE >young >doge pfp Sure thing grandpa

@Scientist Walter are you mad you’re too young to be on there?

@jnkara or maybe because they would cost 1000$ then, because Lego is a shitty company

@Spicy Dong They're all right. Every website I can think of, of the top of my head right now, has been a victim of the side effects of succes.

@FauxFaFox Reddit has a little bit of everything. If you're interested in something, chances are there's a subreddit about for you to interact with like minded individuals.

Right?! I could hear the rough cam idle as he added load to the |2

i understand nothing cuz i don't know anything about machinery

@Dennis Ferron fascinating!

I read an article about a visit to an engine building shop that, in addition to a dyno, has an engine test stand that can just forcefully spin the engine without it actually running (using compression, just no fuel or spark). They also tested just valve trains this way (spinning, no compression). The author was struck by how much of the characteristic running sounds of each engine were still recognizable.

It will reduce airflow and torque, you need more pressure or wider channels to take advantage of this scheme.

@Lumen3 definitely. In the end this is what flywheels are made for. Would probably also help for the 12 cylinder radial to put another one behind it with half a rotation offset to minimize vibrations. And it would be super cool if you could pull the cylinders further apart and create a hollow axle in the middle kind of like on those fighter planes where they then put an autocannon in the middle. But those are probably just dreams in terms of Lego feasibility...

the limiting factor is generally friction in the valves and pistons

@Scarrax01 Also i think some kind of flywheel would help make them run smoother.

yeah or even like for the v8, using one tube for each half

The first one is free

@BrowncoatInABox HOLY SHIT, The V8 version has the V8 sound to it.

It's sounds like an engine

the MG-42

Diese Unterstellung weiße ich im Namen der Bundesrepublik Deutschland zurück! Aus einem DEUTSCHEN Gewehr strömt der Klang des Sieges und nicht solch ein jämmerliches Geklapper! Just kidding. I laught my self dead.

@Unus Annus what about the mp40?

@Mr Confuse ok well what about the MP40?

@Game Seeker This series of development started off in the stage developed by James Watt. What followed were quite similar engineering mistakes, plus their respective solutions (and failures). Each 'stroke' is a sinusoidal movement. Depending on the properties of the mounting frames, these movements translate into vibrations of which many transform into sounds.

Is this because piston strokes don't have a perfect circular motion? Or rather, perfectly constant movement during the stroke?

As a government official I can confirm he's already on a watch list for beginning work on one xD jk

@IstasPumaNevada Anti-Lego reactor when?

Or fusion, combining 1-stud bricks into 2x2 bricks.

Ya that would be great vid

That would be a sick video though.