Build & Test Lego Engines: 1-cyl, opp-piston, S2, V2, F2, U2, W3, S4, H4, X4, radial-6

Using Lego to showcase different engine configurations. Each engine is built from scratch and then rotated at 3000 rpm for visualization and to demonstrate balance. Enjoy!
00:00 Single-Cylinder Engine
01:01 Opposed-Piston Engine
02:29 S2: Straight-Twin Engine
03:54 V2: V-Twin Engine
04:53 F2: Flat-Twin Engine
06:33 U2: Two-Cylinder U-Engine
07:42 W3: Three-Cylinder W-Engine
08:51 S4: Straight-Four Engine
09:50 H4: Four-Cylinder H-Engine
11:08 X4: Four-Cylinder X-Engine
12:36 6-Cyl Radial Engine
15:09 all engines side-by-side comparison

[@aboriani]

Problem with these videos is that they eventually end... I could watch to this the whole day...

[@budja1501]

Couldn’t agree more

[@NikoBellic-hg4un]

Yeah me too

[@MiMi420_]

So true

[@williams8453]

Yeah, I always get so excited when one of these videos come out and a bit sad when they end

[@al3rgen]

yep, I need V6, V8, V12 and V16 :-)

[@Boxygirl96]

I love when it starts goings so fast that it outpaces the camera frame rate and appears to reverse direction for a moment

[@tristanrow4951]

Even better when it happens twice on the same engine!

[@terrymightyena5820]

And then it starts looking like it's fading

[@andrewrowe1441]

It's called aliasing, and it's a really cool effect.

[@BanterEdits]

This has nothing to do with frame rate. What you mean is the shutter speed :)

[@cookiethecraftycat9439]

@@BanterEdits Shutter speed has absolutely nothing to do with it, he is correct, it is framerate.

[@dwuckyforone2358]

I really like how most of these actually sound like real versions only quieter

[@computernaut]

Exactly! The rotary engine actually sounds like an aircraft.

[@kyrian7600]

@@computernaut rotary and radial engines are two completely different things. People have made actual rotary engines out of LEGO too.

[@computernaut]

@@kyrian7600 Oops, my mistake. Meant to say radial.

[@THESLlCK]

after all these years of loving cars, never heard of a U-configuration, incredible

[@mojothejester9889]

Used in aircraft during WW1, car racing up to around 1960, and race bikes in the 80's

[@THESLlCK]

@@mojothejester9889 looked into it and found out all I needed to know, great comment innit

[@CHAUDHARY_BS]

Bro you know where to buy this legos

[@nazarderkach9320]

@@mojothejester9889 And a U-12 diesel was also used in the M4A2 version of the Sherman tank.

[@smergthedargon8974]

I love how, as the speed goes up, they all begin to look like they're vibrating with anger.

[@calebchan9411]

engines go brrrr

[@liambohl]

All except the flat 2 boxer

[@superchroma]

Petrol engines literally vibrate with anger.

[@PleegWat]

But some more than others. This is an important consideration in real combustion engine design.

[@mrwho30]

@@liambohl Boxer motor + least vibrations - needs the most space - needs the most material for the motor bock

[@Doctadoone1]

It's like watching someone go through a tech tree eventually we're gonna have something like Build & Test Lego Nuclear Reactor.

[@calebchan9411]

this seems possible with this guy, but where's he going to get lego uranium

[@elmik1351]

@@calebchan9411 Don't worry he'll just use REAL uranium.

[@riverciver8528]

LEGO chernobyl

[@Racc_Oon]

@@calebchan9411 probably green see-through studs

[@dedman2517]

hahaha thats what i was thinking, eventually this guys gonna be the first one with a lego rocket in space

[@SidusBrist]

I love how oldest engines were like washing machines in terms of balance compared to the modern ones!

[@boeing747-8]

8:54 Ah yes, the humble 4-banger, inline four or I4. The heart of many, many modern automobiles. Economic commuter car, or screaming highway beast, these things are everywhere now.

[@stevenstice6683]

The 900cc Kawasaki Eliminators from the '80s had straight 4's as well.

[@ThinkingCrimson]

Almost 90% of all cars have this humble, reliable little engine.

[@armstrong.r]

I love how each of these sounds vaguely like their real-world counterparts.

[@toucitan8275]

maybe not the H4 tho

[@chot530]

at the right rpm, you can kinda hear it

[@Tixer_yt]

AAHHHHHH 666 LIKES

[@Volcanacy]

its only because the shakiness makes it sound that way

[@EpicTyphlosionTV]

Oh man, he's getting into Lego engines now

[@abox1209]

If he can make lego engines, who knows what he could do?

[@martinp5315]

@@abox1209 next video. How to creat a nuke atomic bomb with lego

[@nochalnosowski]

I can't wait till he starts building lego gearboxes

[@oli_g_98]

Just wait until he starts making pneumatic motors

[@ionymous6733]

@@abox1209 how about a lego engine that drives an axle versus an axle that drives an engine?

[@TelmenBudsuren]

Nobody: Civic dudes at 3AM: 9:32

[@glitch_dood2929]

I’m actually disappointed you didn’t do the in-line 6

[@glitch_dood2929]

@Sekačka Obecná I think he did tho

[@glitch_dood2929]

@Sekačka Obecná oh that’s cool

[@chrislong811]

Glitch-dood

[@glitch_dood2929]

@@chrislong811 Chris-Short

[@alexross1816]

The Radial Six one had so many issues in filming it because it was trying to take off and fly around the room.

[@IamJmc1992]

the radial engine, knows where he belongs, the sky

[@Minecrafter-uh6qv]

@@IamJmc1992 the only thing that grounds them is a tank, like the M-18 Hell Cat

[@Appletank8]

So is the M4 series for a while

[@moohooman]

Jokes aside though, those things are pretty much just attached straight to the propeller with nothing really in-between (with a little exception during WW2 involving a certain model of Sherman tank), so not to surprised that it shook the test rig to pieces, when the angled tail shaft got involved. It was very cool to watch

[@volatile100]

@@moohooman I mean, it's not really a "certain model" of Sherman. The majority of them used radial engines. The weird Shermans are the ones that *didn't* use radials. Like the one that was used some of the British Fireflys, 5 car engines strapped to one flywheel.

[@hachiroku24]

The radial engine actually sounds like a propeller plane

[@dudezgamez550]

now we need an R18

[@pokoramora6359]

Maybe because this is propeller engine? Hm...

[@mingyi456]

Some WWII propeller planes (mainly naval aircraft) used radial engines. Those meant for land warfare mostly used inline engines.

[@h8ter1927]

Radial engines in aircraft I’m familiar with used an odd number of cylinders, that might be an interesting comparison. Are there “modern” radials with Ann even number of cylinders?

[@mingyi456]

@@h8ter1927 Given propeller planes are hardly used nowadays because jet engines have taken their place, probably not. The advantages of a radial design in WWII planes are that the structure allows for more airflow over the pistons, aiding in cooling. Also, because more cylinders are used, there is greater redundancy in case of damage from enemy fire. These points are largely moot nowadays, so I think this is unlikely.

[@bigb589]

Next thing you know "Build a hellcat Lego engine"

[@yoz0ra69]

The more you know

[@tylerthomason9461]

I love seeing how even though they’re mini engines, the balancing and vibrations are still super accurate to the real thing, for instance the parallel twin vs v twins are a great showcase on why you’d prefer one over the other

[@Taikamuna]

Everybody gangsta until he twin-turbocharges a v8 lego engine

[@TheLetterJ10]

[really cringe reply 'bout being first]

[@MeatyTF2Mercs]

Haha second go brrrrr

[@louisfushigiii.8967]

everybody gangsta till he quad-turbocharges a 4-rotor 787b dorito

[@ordinaryperson5413]

I haven’t seen you in a while

[@THESLlCK]

LEGO LS SWAP

[@mrc14_2]

The vibration difference between the 180° and the 360° S2 was astonishing

[@gobblu]

Makes sense though right? On 180° the forces are offsetting eachother while the pistons are "firing," while on the 360° both pistons are exerting force at the same time in the same direction

[@benevery]

@@gobblu would the 360 degree vibrate expodentially more because theres nothing stopping it?

[@halomaster7131]

@@benevery no they would hit a max vibration travel and start moving of there own against the friction of the table, if youve ever seen a construction packer it moves off vibration

[@panonf.9106]

No Straight-6 though - that would result in no vibrations at all

[@kal9001]

​@@gobblu An inline twin with phasing like that is uncommon. In a 2 stroke the pistons would be 180 degrees apart. and so would 'fire' evenly as every time a piston reaches the top, there's an ignition. When motorbikes started moving to 4 stroke that kind of twin setup ends up not working well, as each cylinder only fires every second top, so you'll always have uneven spacing of the ignition. which also complicates the ignition system as well as making the engine feel 'lumpy' The solution is to set the pistons 360 degrees, which means each piston still fires on every second top, but the ignitions are staggered so you still get one ignition per revolution. Vibration is taken care of by a larger countereight than on most engines. Such a system has the same basic ignition a single cylinder uses, it simply fires both plugs at the same time but because one will be at the top of the exhaust stroke it does nothing, hence the term "wasted spark ignition". Wasted spark is used on all sorts of engines, even modern ones where pairs of pistons both reaching TDC together, but on different phases, spark together, which can greatly simplify the ignition system. In twin cylinder 4 strokes there is a more illusive "big bang" set up which if you mess with the cam shaft you can put both pistons in a pair into the same phase and they fire together acting like a big single. People do this mainly to make the bike feel punchier, though there's no extra performance to be gained as double the power is offset by double the time between firing.

[@beans5171]

Imagine being able to afford technic ice kits

[@handletemplate]

poverty sucks

[@paul_ko]

SUS

[@beans5171]

@@handletemplate indeed

[@sohammahendrakar4247]

Amogus Sugoma Amogoma.

[@alkaupadhyay7650]

Oh god it's amogi

[@sammythefox1057]

I love that you show real variants of the engines you made

[@WajahatMAhmad]

This guy's a genius, no teacher could've taught me those engines so easily and in more fun way

[@Kodaiva]

To show engine you must build engine out of small plastic bricks

[@casematecardinal]

@Ivan Varela understanding the monst basic fundamentals of how each engine works is a very helpful thing to know. Because a lot of the time since it is a integral part you can work backwards from there to fix the problem

[@casematecardinal]

@Ivan Varela as long as their is internal combustion there is work. And even if we move away from gas we will probably still use internal combustion for a long time

[@yngfljm2277]

@@casematecardinal let's hope so :(

[@KurkoBaine]

Impoter sus

[@null_data]

I'd love to see a straight 6, and a v8, with and without counterweight, if they make those oc

[@sparky173j]

I've made a cross plane V8, but I had to cut a piece shorter to make it. A flat plane V8 us just two of the inline 4s sharing a crankshaft, so has all of their properties. The cross plane is smoother, as it doesn't have the secondary imbalance than a flat plane has.

[@bobboy61]

I'd love a straight 6.

[@seanjohnisee]

V8s irl are super cool...

[@kukkuud2105]

Straight 6 doesnt need counterwrights, but its impossible to make with lego becouse you can only put the lego pieces in 4 different direction, i6 needs dividability by 3

[@bobibeats2992]

Would like to see a W8 and W12

[@cannedbeanman]

14:32 so this is why we stopped using those for planes

[@crad5476]

3:35 that sounded surprisingly good.

[@badacktor]

younger, naive me: “boy that 360 degree straight two seems a little unstable huh? I’m sweatin’ over here...” radial-6: *sweating intensifies*

[@3rdDanPrime]

that's why engine balancing is big deal just look at flat boxer 2 and straight 2 180° they don't need additional weight for balance

[@oskazet7296]

@@3rdDanPrime The best balanced engine layout is straight 6, they dont need balancing shafts at all

[@1.618_Murphy]

Moral: *Before finalizing the design of any engine, test the Lego prototype to see its stability!*

[@abossoum2392]

You're right

[@walker4060]

I agree.

[@amm0gamm0]

You can even see hints of engine balance in this! Brilliant!

[@gibsenglender1727]

This is really good at showing how some piston layouts are much more stable and balanced than others

[@guillaumejoop6437]

Part 2 : piston order and crankshaft tweaking. Flatplane vs crossplane V8 for example

[@hurlaky43]

I bet the U2 & H4 engines would be smoother if the 2 cranks were 180° apart

[@seandorr7564]

I would have thought that he would just naturally offset them by that but ig not

[@mishkamcivor409]

@@hurlaky43 you would have less vibration, but the force would be turned into torque instead of linear force, which if it were a real engine may be less desirable

[@lancepharker]

and the smooth running glory that is the straight 6

[@ParaFox404]

@@lancepharker I was hoping for an i6 maybe another video with more engines hehe

[@_Just_Andy_]

Damn that radial 6 was impressive. It even started to sound like old plane. :D

[@soumadelezo4867]

The old planes used a engine configuration like that

[@isaakwelch3451]

@@soumadelezo4867 yes thats the point

[@caramelldansen2204]

@@soumadelezo4867 damn bro, for real?

[@jianng7795]

@@caramelldansen2204 Many of them are. Radials are among the first types of engines used for aircraft, but other engine types are used as well. In fact, the Wright Flyer uses an inline 4 engine.

[@fracturedframe1462]

I mean they all do if you listen close enough

[@jaboygamingyt2624]

It’s cool how some of them either just start to levitate a bit or just break from the sheer amount of energy they produce

[@aGodTierIdiot69696]

Love how the long bang (or possibly big bang) 2 cyl almost shook itself apart

[@BlankAreAthletes]

I love that this is a perfect demonstration of in phase and completely out of phase waves and how engineering is just infected with it. Everything that deals with movement at some point pretty much deals with wave forms and that’s apparent in looking at the I-4 and boxers stability vs the radial engine which is hardly able to be contained.

[@johnwright5845]

For the radial engine, he put a relatively large mass on the throw of the crankshaft and then only supported the crankshaft on one side. There was only going to be one ending to that.

[@pneumaticslap3344]

You can actually use Legos to test the balance and durability of an engine design... what the fuck

[@mjay6245]

@@pneumaticslap3344 To a certain degree? of course you can. Anything with weight will be able to have its fundamental physics checked as long as the movement is the same as the full-scale machine and all parts weigh the same in relation to each other..yes of course it's a good design.

[@laurocuha6546]

Yes, although I4 has great primary balance but a pretty bad secondary balance. Also he should have held the assembly in place from both ends not just one on the radial.

[@zif999]

This is a perfect way to see how actually balanced each engine is.

[@ironcito1101]

I was waiting for the straight-6 and its exquisite balance.

[@LucasSouza023]

Dumbass... What about balance shafts? Theres none in lego engines... Real engines have balance shafts tô preveting rocking motion

[@SagBobet]

Would have liked to see the H4 in a boxer configuration like modern cars actually use.

[@user-cy5xu]

@@ironcito1101doesnt work because the crankshaft needs 120 degree angles

[@fxckenedge6828]

Building one of these engines for the batmobile was so satisfying. Watching the pistons move as the wheels turn is so fire.

[@HotSneks]

I love how this video demonstrates the importance of counteracting forces. Do a wankel rotary next! (If it's even possible with legos)

[@AlexandarHullRichter]

I feel like this is an excellent demonstration of A, why I4 engines are so dominant B, why Subaru boxers are so loved.

[@Ghostlight89]

Even though there wasn't any Subaru boxer in it... The H4 IS NOT a Subaru flat-four... The subaru F4 has one crankshaft between two cylinder banks. The H4 has 2...

[@AlexandarHullRichter]

@@Ghostlight89 the 2 cylinder boxer he made had almost no vibrations at all.

[@AlexandarHullRichter]

@@Ghostlight89 4:57-6:01

[@davidwilems8915]

Maybe for low vibration but no mechanic loves an h or a boxer

[@fuckface4149]

Subaru makes horible and unreliable engines that will either throw a rod or blow a head gasket after 50k miles

[@Valthe50Cal]

Next: how to build a 6 speed transmission with a clutch using only legos

[@Leingod2005]

There is something similar in the Lamborghini Lego set, just no clutch. It has a shifter to engage and disengage the engine along with paddle shifters.

[@dang6787]

@@Leingod2005 you mean the LEGO technic sián?

[@collins9708]

I was the 666 person to like that comment

[@dang6787]

@@collins9708 668

[@BigChungus-no1ve]

How to build your own car using Legos.

[@colemiller6032]

Can’t believe I just found your channel, your videos are fascinating! I love that someone like you can make a living off this, keep it up!

[@PixelatedSlag]

Learned a surprising amount about engine's lol. thanks for the effort you put in!

[@therealbabspace]

The fact that inline 4s are naturally balanced and seeing a lego form run to 3k with very little vibration was really cool

[@varus113]

And people wonder why they last so long

[@mshathlonxp]

Not fully - straight six is better in this aspect.

[@augustopinochet6899]

@@mshathlonxp i6's have no primary or secondary vibrations. I4's only have no primary and i3's have no secondary

[@theinstitute1324]

@Ivan Varela Let him be he vibing rn

[@ameunier41]

@@augustopinochet6899 yes but inline can have trouble with crankshaft twist resonance

[@Holmesy87]

Everyone talking about how stable the Inline 4 is, and I'm out here staring at the S2 180 barely even moving. It's okay baby, I see you.

[@doge5603]

@Vrylle Llagas Yes it look lot more stable when both cylinders have different momentum.

[@Trades46]

The I2 design won't be ideal in a typical Otto 4 stroke design. Because the power stroke is not displayed here the balance is good but in reality the near 180deg of no power rotation makes the design questionable. E.g. Fiat tried to make a 1.0L TwinAir 2cyl turbo for the 500 city car back in 2011. It was a novel concept but alas it idled rough and was far less refined than the 1.2L 3cyl and the MPG gain over the TwinAir was negligible. Needless to say the Twin Air was discontinued from the Fiat lineup by 2017.

[@EmilehUnk]

Just imagine how stable the straight-6 would be.

[@identiticrisis]

The H4 should have been the same, had the lower pistons moved oppositely to the upper ones, as they did in the real engine - and as they did in the various "square four" engines, which were similar. A square four is probably more accurately described as a U4 engine, though. The 180° twin is very common in motorcycles because of the balance improvement and where the uneven firing isn't a problem, it simply adds character. 270° sounds sweeter, though - like the 90 degree v twin.

[@farmanshaikh6405]

reminds me of the single piston car i built out of technic lego back in the early 90's as a kid. Had a drivetrain, steering rack! Lego Technic has come a long way since then. Great content! Keep it up :)

[@whoathatsalotofdamage3718]

4:40 tell me you're unbalanced without saying your unbalanced

[@redshoebox]

You should try lego pneumatic engines, they are self powered by air instead of running them off motors, they are really fascinating!

[@jt101c]

And vacuum engines, they are easy to make

[@scrambledmandible]

God, the ideas to try if money weren't an issue.. I've been addicted to watching Lego pneumatics for years

[@sgbench]

What do you mean "self-powered" by air? They're not perpetual motion machines

[@scrambledmandible]

@@sgbench I believe they just misspoke a little and meant "powered by air"

[@redshoebox]

@@sgbench They don't require motors or anything, just compressed air. Here's a video of a pneumatic engine:kzbin.info/www/bejne/lYLUg3qmqdtmapY

[@jackalovski1]

I really hope there's a part 2 to this, need the V4, F4, V6, F6, but also I'd love to see you takle some weird engines like the VR6, S5 and V5 engines. this video demonstarates the engine balance so well maybe you could do a stright 5 engine with and without a balance shaft?

[@damjantasevski5769]

Yea I was waiting for them, hopefully in the next video, also W16 would be great if it's possible to make from legos

[@ThePiotr7oo]

@@damjantasevski5769 it is i have the lego chiron it has a W16

[@jackalovski1]

@@damjantasevski5769 the Bugatti w16 engine is basically two VR8 engines back to back with the staggered pistons, no idea how you’d create that in Lego, might have to get creative

[@lukeiannello6190]

@@jackalovski1 the Lego Chiron uses two V8s next to each other, when the real one is basically two VR8s with one crankshaft. It could be done but it would be very bulky and the proportions would be off, as the pistons would need to be a fair bit apart to get the angles right.

[@Fiatfan]

I love this clean style of lego videos. No music and time parts

[@BlueSquad00]

Incredible video! I never understood the basics of how engines work and now i do👍🏽💯😁

[@craftblader410]

I'm just waiting for him to make a lego spacecraft and go to space

[@k42uy4]

to lego space

[@LegoGamer-sk3oi]

Yeah!

[@phumipatsudmai9273]

probably next video

[@craftblader410]

He's making so cool stuff, and I'm making only lego beyblades lol

[@calebchan9411]

@@k42uy4 this actually seems possible with this guy he knows his stuff - imagine if he made something that flew to the moon and put something on there (get where the reference is from?), that would be really complicated, probably nearly impossible, but super cool!

[@MusicalMethuselah]

Missing that S4 in the final comparison. It ran so smooth!

[@micha5816]

Same

[@Trades46]

No surprise why almost all car manufacturers use the straight Inline 4 for most vehicles. It is a very balanced and effective design.

[@matthewmondragon2074]

@@Trades46 and more efficient than use more than 6 cylinders, the known Castrol Supra had a inline 4, also rally cars usually have turbocharged I4 engines

[@Galethvia]

The F2 Boxer also ran incredibly smoothly. It's so neat to watch how all these engine designs work.

[@wontonii232]

@@matthewmondragon2074 WRX has a turbocharged flat 4 engine. Shame he didn't show that in the video.

[@mehran1384]

Extremely engaging. Thank you.

[@sohammahendrakar4247]

This actually helped me learn a thing or two about engines. Nice

[@Ardy_Visser]

This is the best explanation of how engines work there is on the internet and the dude doesnt even talk. Respect.

[@PhoenixClank]

This isn't really an explanation of how engines work. However, it _is_ an explanation of why certain cylinder configurations are more stable than others.

[@jtktomb8598]

Those are jus the shapes

[@nellam8]

no

[@A.Filthy.Casual]

This whole channel is just the answer to the question "what can you do with an unlimited Lego budget and a mechanical engineering degree"

[@grim383]

3:07 this one sounds great

[@MuscoviteDN]

Oooyyeee!! I returned from the army a few days ago. It is very joyful to see my beloved channel again after a whole year of separation. The topic of the video is very useful, I was just interested. Thanks a lot

[@dargonman]

I have been binge watching your videos all day, and subscribed around the submarine ones. Now I get the notification there's a new one. Hell yeah.

[@chobyriley417]

What’s Dargon

[@eekamini]

Same

[@GhostSlayerYT]

@@chobyriley417 nothing it's just the last boss in minecraft

[@chowdown]

I like how stable the S4: Straight-Four Engine looks in motion compared to all others (why isn't it in the compilation at the end?).

[@benoitg6933]

It looks like the pistons should be in opposition of phase when going in the same direction and in phase when in the opposite direction for the "engine" to be stable. I think the one you mention is extra stable because of the symmetry that the similar two piston one doesn't have for instance

[@Robozgraggi]

Actually the boxer engine is even more stable because the pistons go in the opposite direction basically mirroring each other. The 2 cylinder model shown generates almost no vibration and manages to do so with 2 cylinders less than the straight 4.

[@Nessinby]

@@Robozgraggi yes but it's also less powerful, and as well the "consistentency" of the power begin generated should be taken into account, As I believe the less consistent the power the easier to stall. Ofc I am not an engineer or mechanic and thus discovering the "Efficiency" and value of these engines is just speculation on my part.

[@dezdesilets5047]

I just wish he went up to an inline 6, as that is the most "naturally balanced" engine configuration possible. Similarly a v12 (basically 2 inline 6 engines) which is why both configurations are both loved so very much

[@Robozgraggi]

@@Nessinby I have no idea what you mean by "consistency" and "less powerful". In terms of overall performance the boxer engine is better. But it's more complex and expensive than an the inline engine.

[@LegoEngineer003]

These are all awesome, but I think my favorite to watch is actually the Opposed-Piston engine

[@dietermitplatten]

Someone needs to do a 1-hour loop of that slo-mo comparison. Just perfect for every technician to chill out, find his inner peace and enter the land of dreams :)

[@justinstergar6757]

It’s cool seeing how some configurations are so much more balanced.

[@triipppzzz]

Yeah them being more stable is some of the big reasons certain engine designs are used more

[@Jean-Denis_R_R_Loret]

Here are the S2 180°, the boxer and the 4 banger, most of configurations aside of that are imbalanced because mass displacement is not compensated.

[@sgbench]

In real life they're always balanced by adding counterweights, if necessary

[@brianl8983]

I’m both amazed and disappointed that these all worked without catastrophic failure

[@retr0fusion46]

Tbf he could have so he just didnt include that part

[@marchog5276]

The u2 at 7:20 had a crankshaft fall off

[@whtkgl]

netflix: are you still watching? somebodys daughter: 0:28

[@Toht_888]

That joke ain't gonna work right now...

[@Breathtaker5000]

As someone who is getting more into cars this was a cool find!

[@GoofballAndi]

This just shows how so many configs are screaming and trying to desperately tear themselves apart. Meanwhile, inlines just tbe chilling. Hope to see a followup video with even more engine configurations and even higher RPM

[@valithevali]

It's so cool to see which configuration have most and least vibrations. Also most of them had a RPM sweet spot where the forces almost cancelled eachother out and they ran smoothly. A V8 with 90 degree vs 180 degree crankshaft comparison would also be awesome.

[@animatedsurvivors8792]

Who else is only watching the universal joint & waiting for it to break?

[@rageagainstthebath]

You mean Cardan?

[@animatedsurvivors8792]

@@rageagainstthebath yea , they are the same thing right?

[@capnplaidbeard]

With all that gearing up, the motor doesn’t have anywhere near the torque to break a u-joint. Now, if the gearing went the opposite way... then, there’d be cause for concern.

[@animatedsurvivors8792]

@@capnplaidbeard oh okok , well i am just a 17 yr old teen lol how would i know that 😂😅

[@rubyhillman1859]

@@animatedsurvivors8792 School? Lol 😂

[@DailyJuicyFacts]

These sounds are amazingly satisfying

[@Fiatfan]

You you taught me about engines in such a good way, that i didnt know i was learning

[@qsaification]

6:50 it's amazing how much stable the straight-four engine is

[@random-ve7sf]

thats how some Diesel engines works

[@I_killed_that_beard_guy]

@@random-ve7sf the one quiet kid?

[@zif999]

Wait until you see a inline 6. It should be the most balanced.

[@yngfljm2277]

@@random-ve7sf Wow, how do you know this stuff! You must be really smart or something, can you explain how other diesel engines work too? Again, super impressive, "some diesel engines use inline 4", fuck haha did not know that! (holy shit I'm such an asshole lmao)

[@xTHERANGAx]

@@random-ve7sf fr? I thought those ones used electromagnetism

[@JoelCreates]

And people ask why I love Subarus

[@Rentaro_dev]

Heyo

[@Rentaro_dev]

sup

[@triaplayzz701]

That boxer engine won't vibrate...

[@codehawkofficial]

@@triaplayzz701 thats what she said

[@lukejordan9389]

Should I dare say "head gasket"

[@ninjabaiano6092]

I love it when the engines start to spin at a speed that is a multiple of the camera speed.

[@HECKproductions]

cute that the pastic lego mock zylinder housings have cooling fins

[@MasterofOrion]

This video is a gem for teenagers like me who wanna learn mechanical engineering ❤️❤️❤️❤️❤️

[@flemmings5534]

I can also suggest engeneering explain if you hav not seen it yet

[@evyb3590]

Except if you want to get into designing engines you probably won’t have a job by the time you finish engineering class because electric cars

[@alexstromberg7696]

If you don't know this before going to collage, you won't have a good time

[@trololollolololololl]

@@evyb3590 im engine engie specialist and electric cars wont take whole industry

[@vividant]

@@trololollolololololl yet

[@ilovefunnyamv2nd]

Its interesting to see all these engines work in reverse, this was also a great demonstration of where the stress builds for each type

[@alexvives1335]

The slow-mo sounds like recordings of a triple expansion steam engine

[@Hackfilms1]

Amazing to see how naturally balanced flat engines really are

[@rodeomcneal3538]

Would love to see larger more eccentric engines like a W12

[@G31M1]

Or the Bugatti Verrinn W16 one with 6 cylinders on top and 5 on each side

[@Pretender1147]

Or a Napier Deltic.

[@aaaabababa]

@@G31M1 the Bugatti "W"16 is actually a vvr16, different design, probably nearly impossible to do in suach a small scale out of legos.

[@himawarii_gg]

I was hoping you'd show a straight 6 cylinder one because "2JZ broooo"

[@G3BEWD]

Or a V8 😉👍

[@trafficcones1485]

V16

[@MichealleShoemaker]

But you need 120° crank

[@hurlaky43]

@@MichealleShoemaker I bet you could fashion a 120° crank with the 6-hole wheel used in the radial-6

[@MichealleShoemaker]

@@hurlaky43 maybe

[@linux_doggo]

This channel just makes me want to buy a shit load of gears and technic parts to mess around with I fucking love this

[@tetrod123]

Amazing! Enjoying a lot to watch your videos with my son👏👏👏

[@rockingchair3458]

I didn’t even know a lot of these motors existed until watching this video, thank you

[@mojothejester9889]

H and U engines were used in aircraft during world wars, racing cars around the 60's, and bike racing during 30's (H engine) and 80's (U engine)

[@madman7XX]

Why don't you make a vid about all types of engines, inline 4, inline5, inline 6, V6, V8, V10, V12, W8, W12, VR6, W16, Flat 6, Flat 4

[@2railnation]

Cause part 2.

[@nathanielweaver7078]

Probably video length

[@AbhishekThakur-wl1pl]

You know he can build a W8 engine car.

[@cosmicegg7299]

It could be cool but the probleme with almost all these engines that they will requires modded pieces to do a realistic crankshaft

[@YaofuZhou]

I appreciate that you pointed out F4 in the very end!

[@GetTheFO]

Watching these bare essential videos really makes you wonder… why do some of these engine designs even exist hahaha. Fascinating vid, thank you for the effort you put into your content!

[@FortuitusVideo]

In the beginning of any field, its balls out insanity as engineers are searching and experimenting. Notice how most of these engines are from old motorbikes. As a field matures, efficiency finally sets in. Notice how similar airplane designs are as compared to WW2 era planes. Or cars.

[@4x4forlyfe]

Ah man. I was hoping to see a Boxer 4 and an inline 6, but maybe in another video. Gave you a thumbs up!

[@chillydickie]

Your H4 phase angle was 180. Would have loved to see 90 degree. Awesome vid.

[@Winkles.]

Wouldn't that be a V4? Or is that what you're saying?

[@bryanmiranda1745]

A great showing of how piston and crankshaft arrangements can affect engine balance

[@TheLPN05Fan]

Nice to see the opposite piston and Boxer engines and their advantages. Opposite Piston, (a 6Cyl was used in the Chieftain MBT) with it's high complexty but high compression (more power), small needed place (for the produced power) and little vibrations. Same for the boxer but lighter because less complexity which helps for example Porsche with their Rear-Engine (many supercars are mid-engined).

[@Mr.Exquisite]

When going 90° with a Cardan axle, pls make sure to also offset the U-joints 90° to each other, as opposed to using them in 0° offset when input and output are in parallel, to mitigate vibrations

[@Doostun]

14:39 when the crankshaft sus

[@user-qz1tw6ih3p]

When the crankshaft is SUS

[@Strikerz0r]

This was actually quite iteresting, seeing how smooth the different configurations are. Would love to see a part2 to this.

[@yourbigfan1777]

The stability and balance of opposite and flat (boxer) engine is what amazes me the most

[@volleybrawl1]

7:33 the guy throws in the towel, "That's it for me dawg, too tired..."

[@NamNguyen-yarb]

This is actually a pretty cool demonstration of the primary and secondary forces of the pistons

[@schism3014]

14:07 Actually sounds like a motor plane :-)

[@TheSoup222222]

yeah a lot of WWII naval planes used R5s and whatnot if i recall

[@AndrewGuns]

Or piston?

[@handletemplate]

tbf avenger, f4u corsair, f6f, f4f, sbd dauntless, p47 thunderbolt, many more

[@Alpha_X_CR420]

It's so satisfying to watch this and you can learn from this video

The inline-2 shown with 180-degree crankshaft is a two-stroke engine. In the 4-stroke inline-2, the pistons go up and down concurrently, together, in conjuction, whatever you call it. Only in a 2-stroke they can go alternately.

[@hiszpanszkainkwizycja7230]

Patrzcie, miastowy po zagranicznemu gada

[@MikeTheCretan]

Not true... en.wikipedia.org/wiki/Straight-twin_engine

[@JEDSaje15]

Thats not how pistons work

[@TheSoundWeaver]

someone: invites me to the dancefloor me: 14:57

[@light-master]

7:34 Basically what happens when your engine throws a rod.

[@pifilixxiv3192]

when lego teaches you about engineering

[@SBVCP]

I would love to see videos about all those experiments on which the whats and the whys are explained. Like efficiency, wear, noise, etc etc

[@Andrecio64]

S2 180°, F2 boxer and S4 were the most clean engines with Lowest vibration problems