Worlds smallest working LEGO V8
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- čas přidán 19. 06. 2024
- This is the worlds smallest working LEGO V8.
It uses the LEGO original "fake cylinders and pistons" in combination with a custom crankcase, custom crankshaft and custom valves.
The valves and crankshaft werer custom made and designed by myself.
The crankshaft is partially made of 3D printed parts and partially made of metal.
The valves are made using two different tire valve cores.
The crank case was designed by @venturilegochannel9991 :
/ @venturilegochannel9991
He also made a very similar engine, but because of the valves, mine is smaller ;)
00:00 - Introduction
00:36 - Reving the engine
02:44 - Max rpm test 1
03:06 - Max rpm test 2 - Věda a technologie
All it needs now is a 4 speed gearbox and an old muscle car body.
i actually made my own heavy duty sequential 3+R gearbox in the past.
But i used it for my other engines with the big lego pneumatic pistons.
Usually all the gearboxes on youtube were not strong enough to deal with the torque of those types of engine.
I dont know if it will work with this engine tho. The gear ratios could be a problem :(
That's cool
Keep up the great work
Pretty sure it's a flatplane from the sound, so I think a supercar would be more fitting.
@@thestarlightalchemist7333 it’s actually a crossplane :)
This engine essentially is a two stroke, so that probably changes the sound a lot.
It also has no real exhaust, which also plays a very big part in the sound that is created, as the gasses can overlap.
But I already made the parts to test a flat plane configuration, I just didn’t test them yet :)
If there is any meaningful difference between the configurations, I’ll probably do a video on that aswell :)
Sounds phenomenal! Excellent work! Hoping for a tutorial :)
Thank you very much!!
I‘ll be doing a tutorial on the valves at some point probably :)
However I don’t know when that will be…
@@ShaunSchafGames43 Thank you!
@ShaunSchafGames43 ima be subscribing for that
@@blazegaming219 i too
@ShaunSchafGames43 yes I think you could very easily sell the plans on rebrickable and have a link to buying the custom made parts... I would definitely be interested in buying instructions and possibly the custom parts to build 1 or 3 of these
i love how the tubes look almost like a set of headers that thing sounds amazing
That was exactly what I was going for ;)
@@ShaunSchafGames43 can we get a vid of you showcasing the car with this engine?
sounds more real than actual mini gas engines, good job!
I know what you mean, yeah ^^
@@LEGENDA0315 my second car, a 2.4d volvo v70 sounds nearly the same to this.
I can feel the smell of molten plastic :D Great job!
Actually no molten plastic at all :)
The engine is lubed with silicone spray and there is also some metal ball bearings to support the crankshaft :)
@@ShaunSchafGames43 good, i don't need more temperature induced mechanical failures right now, i've got several thousand in my computer already.
@ShaunSchafGames43 so it's only air and no ignition?
@@saltyfloridaman7163 yes, that is a compressed-air engine, but I wouldn't be surprised if it ran off steam since the way you generate mechanical motion with the two is pretty similar, albeit steam is liable to melt plastic.
@@ethans4965 depends on what kind of plastic you use. There is a plastic for 3D printers that can take 270+ degrees Celsius lol.
I'm an automotive mechanic/technician and I love this! Those valves can be a valuable component depending on the torque output. I get that it's a pneumatic engine, but I'd love to see this in a moving model! This inspired a quick search for a torque converter to help prevent stalling, but instead I stumbled across an auto 2-speed gearbox that's incredibly simple. If the vehicle weight is on the heavier side, this T/M should be able to go into its lower 2.33 gear, then after acceleration go to 1:1. Here's the vid link:
czcams.com/video/TjhBIw50gFk/video.html
This can be big, please make more content about these!
I have seen very similar gearboxes like this before actually :)
I will probably do a tutorial on the valves at some point. Mechanically speaking they are very simple. The challenge is more to find the right pieces and knowing how to put them together.
FYI: I actually just got my masters degree in mechanical engineering ;)
Sounds like a beast! Would love to see this powering a lego car!
Sadly I don’t have a fitting car at the moment :(
@@ShaunSchafGames43 CO2 powered V8 Lego RCs would rock
Imagine putting this on a bicycle but it's bigger and more powerful!
OMG ! that's the most beautiful working V8 I've ever seen! (Sorry for the 2 weird holes in the 3d part, it was supposed to fit 2 metals bars for more strength). And the performance are amazing two, well done 👍.
And about the cranckholder tell me if there are some improvements I can make. For me (with sla) it's good, but with fdm it's different I guess.
Thank you so much!!!
Yeah I figured that’s what the holes are for. I don’t mind them tho. :) I actually think they make the part look more interesting ^^
I very happy with the engine overall, however i with it would be able to rev higher as yours does…
But i have a suspicion that it can’t go higher because of how my valves are built. I‘ll have to make another engine with the „standard“ valves I guess :D
@@venturilegochannel9991 The crankholder/crankcase is absolutely fine with FDM. My printer is actually quite shitty and it still had no problem.
The crankshaft itself was more of a problem, hence why i made my own…
I was able to print the crankshaft parts and i expected the parts to fail between the layers, but they actually didn‘t… The part simply just twistet as a whole… I ruined like 6 connecting rods because of that xD
That’s when i decided to print the eccentric parts and make the connecting rod shafts out of metal. Works flawlessly so far… :)
I just have a little bit of trouble screwing the crank holder to the lego V8 holder part as i don’t have screws that are small enough… I already thought about using half beams and new holes in the crank holder to secure it in place, but that would look not very pretty… So i had to life with what I had.
@@ShaunSchafGames43 Nice, thank you for the feedbacks. I think what prevents your engine to get more RPM ( even if that's already a lot of RPM !) is how fast your valve is closing and how fast the air can fil the cylinder.
So with a less powerfull spring you should work more on using the airflow to push back the valve, and then close it faster.
That's exacly what I'm doing with my new engine, because it's a springless valve engine.
@@venturilegochannel9991 Hmmmm... I have not thought about that. But the valve closes pretty fast during the pressure test. The air is literally pushing the valve into its seat from behind the valve body.
But yeah, i am also kind of worried about air flow.
However i really think it could be the backpressure because the rpm stops immediately at 4300 1/min. Usually if you dont have enough air it should slowly reach max rpm? But if i go full throttle it will rev up to max rpm very fast and stop, as if there is a rev limiter... The only way i can think of why that is, is because at that rpm the back pressure and the torque of the engine cancel out... But i dont know for sure. :)
I am curious what you find tho..!
Meanwhile ill try the standard valves, and i'll give an old experiment another go. I tried creating my own 360° turnable valve in the past, but that did not work. Maybe i can get it to work this time. But sealing that thing will still be a challenge...
Wait, someone really did my dream? Someone really did a working Lego V8 from layout?!
Truly masterpiece!!!
Thank you so much! 🥰
I love the intake manifold. It looks like a LS low profile manifold but it still looks like its actually made with Lego bricks. Absolutely awesome.
Thank you very much ^^
This is the best engine I have ever seen, it even sounds like a real engine! Good work!
Thank you very much! ^^
I love functional/practical application Lego builds. Making something that's potentially useful out of Legos is amazing. I've seen Legos integrated into PC towers. This is definitely the most interesting application for Legos that I've ever seen. The Lego Transformers kits like Optimus Prime are fascinating as well, transforming from vehicle to robot mode without rearranging the bricks is phenomenal.
Thank you very much! ^^
I have never heard of Lego used in a PC before, tho... I'll have to look that up i guess 🤔
ABSOLUTELY INCREDIBLE, you need more attention, I wish I had skills like you!
Thank you so much!
Sounds like an actual engine? Check. Revs at 4000 rpm? Check. Coolest lego engine I've seen? Check.
Thank you so much :)
However i know 7000 rpm is possible, so i would like if i could get it to rev higher.
But the 4000 rpm limit is probably due to my own valve design.
Im working on an engine with "standard" valves that could go higher, and a completely different engine concept aswell :)
Probably the best air powered Lego engine I’ve seen. Nice work!
Thank you so much! ^^
That sigh when a part flew off 😂🙏
Yeah… 😅 it was not the first time that tube flew off that day 😂😂
This could be the basis for a more compact authentic v8 rc car! Great work!
Could be i guess...
Although the engine cannot start itself.
So you either have to make sure it does not stop, or you add an electric motor as a starter.
Also you will probably need an automatic clutch.
@ShaunSchafGames43 but it sounds cool, which I'd the important part.
@@gregga.7546 I guess so, yeah 😅
@@ShaunSchafGames43 hey, no motor can start itself irl. Right?
@@ShaunSchafGames43 Is there an engine that "starts itself?"
PLEASE release this as a lego set, looks like a really nice "your first engine" kit that wouldn't cost much
Well, if you tally everything up I spent about 100€ on this engine! I think…
But that includes trial and error…
Sadly I am not planning on selling any parts, let alone entire engines.
That’s why I made a very long tutorial for the entire thing! ^^
Oh my God that's the coolest thing I've seen today! You sir just earned yourself a sub. Will you make a video on how it's made?
Thank you so much! :)
I’ll do a video on the valves at some point… but I don’t yet know when that will be :)
imagine a v12 or even a w16, will sound amazing
A real W configuration is not really possible with standard Lego engine blocks.
You would have to create your own. But you may just gave me an idea :)
A V12 would probably work not very well because the crankshaft would have to be 1.66 times as long and thus very flexible :(
@@ShaunSchafGames43Is it possible to add trubos to it to make it more powerful?
@@varatic644 no since it’s a pneumatic engine there’s no way to add forced induction because it already runs on compressed air
@@Legostuffidk I could not have explained it better myself :)
@@Legostuffidkcant you still add one to make it sound cool?
Holy crap that sounds like a v8. That is insane!
Thank you so much! ^^
this is true the best thing I've seen in a automotive capacity that lego bricks can achieve. this has the potential to make it in other building applications
Thank you very much!
Sadly its a lot of work to build this engine :(
And it cannot start itself, which is why start it by turning the flywheel.
Still its very cool tho, I agree! ^^
looks and sounds so cool :]
holy hell that thing is sick, sounds amazing
Thank you very much! ^^
Interesting how the air flows in through the outward-facing side of the pistons and out through the middle, opposite to how real V8 engines work.
Yeah :)
However the parts in the middle are purely cosmetic.
The „exhaust“ is a hole inside the cylinder wall at bottom dead center.
insane, i love the sound
Thank you so much! :)
i love this v8 sound! exellent work i am impressed. It also looks stunning. I'd love to see this thing in lego car.
Thank you very much! ^^
Maybe at some point :)
Omg thats insane. Great job
Thank you so much! ^^
very cool! i love the sound!
Thank you very much! :)
this is the best working lego engine i ever saw ,it can fit in a lot of MOC ,and damn it sounds awesome, like a Quad or something like that
Thank you so much!!! ^^
I am really glad you like the engine
I am planning on making more videos, however i havent found the time to continue as of now
@@ShaunSchafGames43 you're welcome
It would be awesome to fit it in a MOC
what if humans developed a cat using this engine, but just scaled way up? 0 emissions
What? xD
I like the way you think xD
Sounds so good!
Thank you so much! ^^
wow didn't expect that sound :D how cool is that
It is very cool :DDD
Seriously impressive!
Thank you so much! ^^
sounds and looks like the real thing great work
Thank you so much! ^^
This is beyond awesome dude, nice job
Thank you so much! ^^
Wow in the low revs that engine sounds good
I know, right? ^^
It sounds too good! Bravo!
Thank you very much! ^^
Can we talk about how this man is just simply blowing into the tube to run the engine??? It’s just mind boggling, almost as if it’s not real!
The fact a pneumatic Lego engine sounds better than that electric Dodge Charger thing
What electric dodge charger thing? 😅😅
it sounds really cool!
Thank you so much! ^^
You should supercharge this piece of art
well... its powered by compressed air, so i guess it kind of already is supercharged? xD
Sounds like a flat plane crank v8 rather than a coyote but still impressive without a doubt
It's neither a flatplane, nor a coyote ;)
It uses a cross plane crankshaft.
However I already manufactured the parts I need to test a flatplane crankshaft :)
Thank you very much! ^^
That's sound is amazing
I know, thank you 😊
It sounds like a small block Ford on helium :D
I love it!
Thank you very much!
Interesting comparison aswell 😅
subbed. looks AWESOME.
Thank you very much! ^^
Seen this on the news feed on my phone.... Sir I am very impressed!
Same!
I am also very impressed, that this is seen in peoples news feed ^^
This is absolutely great
Thank you very much! ^^
This masterpiece brings me pure joy
Thank you so much! I really love to hear that! ^^
That’s sick!!!!
Thank you very much! ^^
This is really cool
Thank you so much! ^^
Bro, even a lego V8 sounds like a real V8
Great job none the less
Thank you very much! ^^
That's one way to earn a subscription, sounds absolutely epic dude!
Thank you very much! ^^
I am working on the next couple of engines at the moment... So hopefully I will have new videos in the near future :)
@@ShaunSchafGames43 Sick
Nice, sounds good.
Thank you very much :D
sounds like a 4 cil and a fp v8 very good!! keep the work going!
Thank you very much! I am already working on my next engine ;)
Wow it's very powerful !
It seems to be, yes :)
But i have not really made a test under load...
I've never heard a V8 sound like an i4... But this sounds exactly like a 4 cylinder lmao
People seem to think it sounds like a whole lot of different engines ^^
Its very small and essentially a two stroke engine, so that messes with the sound a lot I'd think :)
I’d love to see a working fully functional rc car with this❤
That would be cool, yes :)
But the engine cannot start itself.
So you either have to make sure it does not stop, or you add an electric motor as a starter.
Also you will probably need an automatic clutch.
It’s awesome
Thats sick bro!
Thank you very much!
I think it’s sick too :)
Yo this is sick!
Thank you very much! ^^
Sweet. Curious how you deal with piston/cylinder friction not melting things?
The engine is pretty well lubricated with silicone spray on the inside :)
And before i run the engine I will usually spray the insides with new lubricant :)
it actually sounds really good
I think so aswell! Thank you very much :)
@LEGO please contact this guy and build a real LEGO RC car for this motor. This has to be one of the coolest things ever
Thank you sooo much! That would be very cool i guess. ^^
However sadly also pretty useless for kids, unless they own a compressor :/
Great!
Thank you :)
The sound
Thank you very much! ^^
That is awesome, I would have given anything to have this when I was a kid
Me too, which is why i built it now i guess? xD
It’s so cute!!!
I know, right? ^^
Hot damn, that's cool. I wish I had one of those.
I will do a tutorial on the valves at some point :)
And probably release the files of the 3D printed parts
This is so cool!!!!!
Thank you very much! ^^
That is so freaking cool
Thank you so much! ^^
This is amazing
Thank you so much! ^^
That's insane
Thank you so much! ^^
Thats awesome. Does it use a cross-plane crankshaft?
Yes, this engine uses a cross plane configuration.
I have some new parts printed out to try a flat plane configuration aswell.
If it has any meaningful impact on the engine performance I’ll probably do a video on it.
But as this basically is a 2 stroke engine, I don’t know what to expect.
I have not tried the parts as of now.
Wow, just WOW!!
Thank you very much! :)
So cool!
I think so, too! ^^
@@ShaunSchafGames43 You've got a knack for this, please keep it up! I am excited to see what you can come up in the future. Nice work!
IT'S SOUNDS INCREDIBLE BRO,OH MY GOD...
Thank you so much! ^^
Legit why does it sound so good?😮
Well... 8 cylinders result in a good sound most of the time i guess? ^^
Cool Engine!!! pls make video of V6 Engine
Thank you so much! ^^
I was planning on doing that at some point :)
Amazing !!!
Thank you very much! ^^
The 3d printed oil pan is a nice touch
It's also required for this thing to work properly :)
Though i did not make it myself..!
This part was originally designed by @VenturiLegoChannel on youtube :)
He made a very similar engine, however i did use valves that are a little smaller ^^
That sounds like a lawn mower pretty cool
Thank you! ^^
Now it needs the body of a Lancia D50!
Yes, that would be awesome!
this is a very nice design it sounds amazing, and its small enough to fit inside one of the technic sets niceley, good work. But I think you should make “transfer ports” on each of the cylinders and mix a little oil in with the air so when the air enters the cylinder it lubricates it and then after the piston goes below the transfer ports the air is forced in to the crankcase where it can lubricate the crank.
however i cant find the bearings required for the crankshaft for under $6 a peice so if you would be able to link the bearings you got i would really appreciate it.
Yeah, you could also use a pneumatic oiler to get some oil in the intake air :)
The crank case does not really need a lot of oil because of the bearings, so its fine if you spray it every once and a while... The o-rings could use better lubrication tho, you are right...
Well the entire engine is not really cheap... I paid like 3€ for each bearing...
I got mine here:
www.kugellager-express.de/edelstahl-miniatur-kugellager-ss-mr-106-w2-5-offen-geoelt-6x10x2-5-mm
Or here:
www.123kugellager.de/lagern-MR106-ZEN
@@ShaunSchafGames43 thank you so much i really appreciate it
Wow this is so cool, i just ordered some bricks to build a gallardo V10 replica i hope i get it to work just like this
I will do a tutorial on the valves in the near future :)
Looks like art and sounds great ! Do you know if there is much air leak or loss? Thinking if co2 or air tanks would be ideal, but may not last long ? 🤷
CO2 tanks are far from ideal for this engine. First of, they would not last very long, as you already mentioned. Also they have a veeeeery high pressure, which will probably destroy a lot of stuff in the engine… (or at least the tubes will fly off…)
Max pressure for an engine like this is usually around 8 bar (116 psi).
sounds like overrevving 4 cylinder diesel so for me it sound fantastic
I glad you like the sound! ^^
You should put that in a Lego car or semi truck it will be good as hell😊
Would love to see some build videos!
I'll do a tutorial on the valves in the near future :)
Is that the actual sound? If so that is pretty damn cool. Sounds like a real V8
It's the actual sound of the engine, yes ^^
I would 100 % buy this
I probably would myself, if I did not have one...
Sadly I do not plan on selling this engine or build ones just for selling.
But I do plan on doing a tutorial on the valves :)
IM IN LOVE!!! is it possible to get the files of the custom parts and maybe a couple of pictures i want to replicate the motor for a project im working on.
thanks
You can get most of the 3D files from @LegoVenturiChannel on youtube.
He made the crank case and a crankshaft.
I just made my own version of the crankshaft.
I plan on doing a tutorial on the valves, and maybe some other videos once i find the time for them.
@@ShaunSchafGames43 what size seals do you use?
@@wardkindts5711 the rubber o-rings are Ø4x1,0 mm
AWESOME
Thank you very much! ^^
@@ShaunSchafGames43I would love to make this, any chance of a tutorial or instructions?
That is awesome! :D
Thank you very much! :) I'm glad people seem to like it :D
@@ShaunSchafGames43 Yeah it is because it’s awesome!
also I’m just curious, do you have discord by any chance?
@@xmysef4920 I do have discord to do a little gaming with my buddies, yes :)
Looking forward to see it in a lego car
At some point maybe, if i ever get to that :)
cant wait for a tutorial, definitely gonna make it and put it in my big 18 wheeler im making, hell ill even see what modifications could generate more torque. i definitely recommend using lego aluminum or steel axles for the crankshaft ends. and would you happen to be using supports in the middle so that each cylinder pair has its own bearing surface or is it like lego's that just has all of them just supported by the 2 ends of the block. i definitely see a counterweight on it, so i gotta wonder if thats all you did to make it rev so high with no visible center bearings.
again, cant wait to see what all makes this thing tick, im loving the low profile of the valves and the amazing sound
The crankshaft is supported with bearings after each cylinder pair, like a real engine, yes ^^
Steel/Aluminium axles are probably overkill for this engine. However I have the biggest displacement V8 made of Lego lying around, too (well the biggest until brick technology posted his video recently…)
That engine could really use some metal axles 😅 I thought about buying some multiple times, but have not so far
Also: you may want to check out my channel in pretty much exactly 17 hours 😜🤫
@@ShaunSchafGames43 the steel axles will make the crank axis a little bit heavier, optimizes just a little bit of an extra flywheel effect. also hoping i can use your valve and crank design with my bored blocks and over size pistons, waiting on a new soldering iron to cast some special heavy alloy pistons and rods, more displacement and heavier metal pistons will most likely change the sound and power output so im super excited
@@beepboop69420 that extra weight in the center of the crankshaft has about as much of an impact as a fly on your windscreen :)
My crankshaft is about half way made of metal anyway, but more so because of the added rigidity and lower stress on the connecting rods due to more surface area.
And if you plan on modifying so much, there is not a Lego left, is there? 😅 at that point you might aswell start making your own engine? 🤔
@@ShaunSchafGames43 very true, i do enjoy pushing legos to their limits though. so if a lego engine can handle what i want without making a whole new engine, more power to it, plus i havent made a lego compatible cast for an engine block yet hehe, might in the future, but for now, tinkering with this design is more on my current level.
How do these valves work? What tells them when to open and to close? I don't see any connetion or actuators. And where are the exhaust outlets?
The valves are made up of tire valve cores
The piston pushes the valve open, once it reaches top dead center
The exhaust ports are hidden inside the pin holes ^^
@@ShaunSchafGames43 thanks!
Oh god, i love the startup... Sounds like a Real v8. Is It flatplane or crossplane?
yeah, especially on low rpm it sounds awesome!
It's a crossplane in the video :)
But i switched over to flatplane by now, because it's able to hold lower rpm with that :)
The fact it sounds like a real car engine is insane🤯
Well... it works very similar, so i guess it makes sense that it sounds similar ^^