@@larsassinck3868 have you tried to lubricate it with olive oil? you just take a qtip and rub oil along the cylinder walls and anywhere there is moving parts
This is my kind of engine :) axles that move everywhere, superchargers, a chain drive system to power different things, small details, and overall the look of a engine where you don't know what half of is but are so eager to find out
Thank you. This is my type of engine as well! Of course it's easier to build a ugly engine that works and stick it on a big plate but making something this large and realistic is on a whole different level. I probably won't make a similar engine again since it's so time consuming but I love when people really put in time and effort into their lego builds.
After watching this video multiple times it finally dawned on me how similar this is to a Detroit Diesel engine, with the exhaust at the bottom of the cylinders like a typical 2 stroke Detroit diesel, then you have the blowers as well, and the way it all works is very similar even in the way of it being an OHC, very awesome. Cannot say that enough!!!
I think your design is really cool, and I have a suggestion for a modification. Your LEGO engine operates using a vacuum system that pulls air in, and you could add a throttle or restriction to control the airflow. This modification would help regulate the suction power, allowing you to determine the engine's RPM based on how much the throttle is opened or closed. With the intake flap (or restriction) fully closed, the RPM would be at a minimum. On the other hand, with the flap fully open, the engine could reach maximum values of around 600+ RPM. Additionally, if you could modify the engine so that it generates more RPM at full throttle, for example, between 1000 and 1500 RPM, it would be very interesting and more realistic.
Amazing engine! Reminds me of what younger me used to do with lego, seems my lego skills didnt last but i surely hope yours will because this is really next level
Cool stuff man. Lots of thought in it. Only problem with vacuum is that is roots your moc to its place. But im sure that it can use as stasionary motor for lots of things too.
Thanks for commenting. Yes, it's vacuum powered, but during the time I haven't been uploading I've been trying many different prototypes for non-vacuum non-pneumaric engines.
@@Mattz6 cool, i hope you will find something usable soon. By the way- 2 month pass since i wrote that comment - since then i made the first ever moblie car powered by vaccum engine. I hope you will see it and like 🙏
id say using double sided tape without taking the strap to make both sides sticky is like one of the best gaskets you can get yourself easily because if youve used it you know its a bit squishy so it will get into any nuck and crany
WOW, I just got done with my 2 cylinder engine and I thought it was amazing but this... this is freaking cool!! good job!, if I ever make one of my self ill give you a shout out
Supercool build man! I was wondering how the superchargers deliver the boost to the engine? (Edit) are they like blowing fresh air to the intake when the piston goes down
@@Mattz6 I am sure this is not how it works, the piston is moving upwards because of the vacuum in the chamber and not the particles of air dragging it, when you add air to the chamber you are just slowing the engine because the vacuum cleaner has to suck out more air.
@@jantosone3380 as long as the intake valve is closed during the compression stroke it should work fine. There is more air volume which gets pressed downward on the piston. Also, the piston also pushes the air outwards, so it doesn't work like you described. The piston assists the vacuum in pushing the air outward.
@@BlueTechRSi don't understand what i wrote wrong. the only thing that i didn't mention was that the superchargers can help in pushing the piston down. because of this, this engine has only 2 strokes: 1 piston going up because of the vacuum, 2 piston going downwards because of the flywheel and with help of supercharger. there isn't any compression stroke in this engine. also the piston cannot assist the vacuum cleaner in pushing the air outwards because he gets dragged up by vacuum him self.(edit) even in the video you can see it running faster without superchargers
Love the ones with the starter motors. What makes this a diesel? Excellently designed engine, though. I can't help but think maybe a smaller timing chain would improve it's performance and reduce noise output. I designed an inline twin 6x6 engine recently which has a similar unique feature of running a mechanical oil pump which forces oil through the engine as it turns. I'm gonna upload another video or two on it before I finally tear it down to make a newer version later on. You might consider moving the cam down into the block to make it side valve again, or at least pushrod OHV as this will make the rotating mass lighter and lower friction for better performance. You might also consider making the valves the full 6 blocks wide, I see you used the trick of changing the outside pieces for the technic beams, but this doesn't always get you maximum performance. For slightly more you could make them fully open instead and gain some performance that way. Also, it looks like maybe your crankshaft has some wobble to it (One side twists before the other) causing the engine to be slightly out of time under load and causing it to run poorly at times. This is very evident during the supercharged run as you can hear one end of the engine clunking to keep up with the other. Otherwise fantastic design and I'll be subscribing to see more
Thanks! So um let's start answering! 1. The diesel part of the name has already confused someone else. I wrote that it is a 'diesel model engine' not a diesel engine. The reason I wrote that in the first place is because when building the engine I really wanted to make it function and look like a inline 4 diesel engine. I also wanted it to be similar to a detroit diesel (hence the 2 stroke nature of the engine and the superchargers) and a catapillar diesel since I had so many yellow pieces. That explains the fairly long stroke, the diesel-reminiscent oil pan, the various design elements like the dual 'oil filters' and the flywheel and flywheel housing. I at first wanted to make the engine turbocharged but I just couldn't imagine the turbo to spin enough to even make some noise, so I instead opted for a supercharged system 2. In what way smaller? If you mean a half as wide lego motorcycle chain then I don't have any (though that would have been nice 😔). If you mean by making the chain shorter then it would be great it I could, but I already lowered the cam gear as much as I could since I ran out of chain links. 3. That's a cool engine idea! Sure is a unique feature. Would be nice to have something similar on my engine, but it's going to require too much work and also the removal of the supercharger, which will make the engine less unique xD. 4. I did already consider having the cam/valves on the side, but I scrapped that idea because on one side the valves will interfere with the supercharger, and having the cam on the window side will require long and heavy beams, and will make the looks of this engine worse (I really tried making this engine look and function as realistically as possible). Not only that but it would cause me to run into more timing chain issues because the 3 chain gears would be in a pretty linear formation causing all sorts of problems. 5. OHV engines are quite hard to make with limited friction, so you'll be losing performance if anything. Even if it did somehow have little friction, most benefits would be outweighed by the complex camshaft, heavy pushrods, and the lack of support. I would also have basically nowhere to put my starter motor and it's mechanism, making the engine lose a important feature. But I am considering somehow making the engine OHV later on by maybe just getting rid of the superchargers. 6. My valves are 6 studs wide. Also what outside piece technic beam trick? 7. Yes, the crankshaft it a bit weird but that's because if my lack of 0.5x3 technic pieces. The last cylinder likes to clunk because I kinda ran out of pieces and the piston is probably nudging against something. In any case I actually think it adds to the sound soooo kinda a win 🤷?
Awesome I am really impresed and you can use not lego motors but normal like old motors you found it wil be faster I dont use lego they are exepensive and with your own you can put rubber band and here you go lego motor.
this is amazing bro! i tried a 6x4 aswell, single cylinder engine that ran off of actual fuel, and starter fluid, it worked a little bit, but it didnt do much. but all my legos are gone cause my mom gave them away and i wanted to experiment. honestly i might just 3d print my legos and cast them to metal so i can make a fully functional V-twin. what do u think?
Wow, that would be AWESOME. There were attemps on TH-cam for a working lego engine but the legos simply melted and there wasn't enough compression. Maybe with 3d printing and a foil-lined cylinder it might work!
how can a supercharger work in a pneumatic engine it just takes energy from the engine and puts it back into the engine, it can only make gains in an internal combustion engine
Thanks. But since the crank is situated in a 2 stroke position it is already balanced enough. Could be more balanced but it's too much work and I don't exactly know relative to what piston to put the counterweights
@@Mattz6 one more thing make sure that the middle 2 and outer 2 go up and down at opisite times so wheen 2 in mid go up 2 in out go down like a real 4 pot
@@the-evergreen The engine is technically a 2 stroke meaning the firing order is 1234. Making the engine have a 4 stroke configuration will reduce power and smoothness because 2 cylinders will fire at once.
Was that a compliment or a legitimate request lol. If it was a request I recommended using adobe premiere rush on mobile. It is free and you get the hang of it easily.
Are The Paper Gaskets Actualy efficient? and does the engine have Deacent Torque? because im thinking of making a lego engine powered by compressed air (5l with 4 bar] and mounting it on my bike
1. Probably. Though the supercharger isn't. Though it may blow some air, it doesn't actually seem to compress it enough to make power. 2. It has some decent torque but I think something like my inline 2 had more. For air powered lego engines I recommend searching up "pneumatic lego engine". This is a negative pressure air engine that can work with a lot less sealing and optimization. A positive pressure air engine on the other hand needs way more work to function properly so pre-made lego cylinders would probably work better. The youtuber "Green Gecko Technic Workshop" has some good pneumatic lego engine examples.
@@Mattz6 ik your engine uses vacuum but ik how to seal stuff properly like an engine built for suction so getting the engine to run aint my concern my concern is torque and fuel efficiency but mainly torque bcz if a 4 stroke 1hp 1 cylinder engine can get a bike up to 36mph whych is realy fast then it means that 0.1hp would be enough but even 0.1hp is incredibly hard to make with lego i had a 4 lego motors made then into one very compactly and then i did some math and figured out it does like 12ncm at 200 rpm whych is basicly 0.005hp them i realized putting that on a bike aint gonna work/be usefull. Since then i was thinking how to get something that made torque btw i was asking about the paper gaskets because like 2 years ago i made an experiment to see if see through duct tape was enough to seal it it sealed it 95% still leaked but very slowly
Not the first time I've had someone point that out. The engine is essentially a 2 stroke, so having a 4 stroke firing order may make it more balanced, but the engine will have much less power. I thought about doing what you said, which is to have 2 cylinders fire at once, but I decided against it. That is because it would simply defeat the purpose of having a 4 cylinder. At that point, a 6x6 inline 2 would be much better.
Dyno it lol, but actually. it seems pretty big displacement. Ill try buy some lego again and do something like this! EDIT: I calculated that this is 307cc
Its Nice to see A realy good looking Vacuum Engine because i have been trying to get my 1 cylinder to work for over a year now and i have tried almost all the valve designs and it still didnt run because all the valve designs had way too much power needed to turn it over whych in the end over powered the engine and it would need like a very big flywheel to make it work and it woudnt be worth it at that point but 2 days ago i made a design whych i hope works but im not sure since the timing mechanism is 5 studs away from the cylinder so im not sure if its gonna work do you have eny tips of making the engine run?
Make sure nothing is rubbing against anything. That is a sure sign of too much friction. Also the valve timing should be 90° ahead of the piston so check that as well. Also if you can try to lubricate the engine. Olive oil works the best, but I personally use a bit of lotion because olive oil is too messy. And thank you!
@@Mattz6 i used my own type of lubricant whych i hope is gonna work just fine im just gonna have to run it with my starter for 2 minutes and then i can try running it after i fix the valve timing because it uses gravity and i need to use a rubber band for it to return back otherwise it aint gonna run but i have used my starter and it could survive aboe 1.2k rpm so im not worried about it exploding even through u can unconnect the whole cylinder without a lot of force so im going to fix that tinny detail somehow idk how i dont have eny more lego pieces with stud holes but after i fix all of those problems i hope it runs. since it pulled the piston when i used my breath and then it stopped and it hasnt done that since but i hope with more suction its gonna work.well have a nice day and thx for answering. :D
btw u should try engaging the starter but not turning it on while running to see if it has the torque to do that since i dont think it does im still confused how that 70 rpm the starter outputs is enough to start the engine oh no wait its 90 degrees ofset crankshaft per piston that makes sense is it just me or does the engine do more rpm and is louder without the supercharger?
I don't understand what you're trying to say but yes, the engine is faster without the supercharger because the parasitic losses are greater than the added power.
Hello, thanks for the comment! I designed part of the engine on Lego Digital Designer. When I first built it though, I had a different valve design that didn't work (too much friction, I think), so I had to change it.
If they make actual boost then I think they can, since there's more air in the cylinder for the vacuum to suck= potential for greater pressure difference.
@@Mattz6 sorry I skipped through the video and only saw an electric motor. I missed the vacuum so I jumped to conclusions that it was just a realistic dummy. Great work making such a massive engine work. Meanwhile I fail at my 2 cylinder dohc dohv design 😂
![[LIVE] : ONE ลุมพินี 85 | คู่เอก "ยอดเหล็กเพชร vs ผึ้งหลวง"](http://i.ytimg.com/vi/Qq_19bnnxEo/mqdefault.jpg)
I spent way too much time building this engine and editing the video so PLS subscrib
That is soo cool.I already Subscribe:)
Yea me too
And I am building a 2cylinder DOHC
You could probably make the gascst out of cardbored for more realizem
Really cool
That’s the most epic i4 I have ever seen, and 600 rpm for such a big engine, my i4 reached 1300 at peak but it was way smaller
Thanks
How big is it? Mine is 4x4 but still does not run great because of too many friction I think
@@larsassinck3868 have you tried to lubricate it with olive oil? you just take a qtip and rub oil along the cylinder walls and anywhere there is moving parts
@@ethankirwan1646 I did but I used bricks for the walls instead of flat panels
Most engines idle at 600
This is my kind of engine :) axles that move everywhere, superchargers, a chain drive system to power different things, small details, and overall the look of a engine where you don't know what half of is but are so eager to find out
Thank you. This is my type of engine as well! Of course it's easier to build a ugly engine that works and stick it on a big plate but making something this large and realistic is on a whole different level. I probably won't make a similar engine again since it's so time consuming but I love when people really put in time and effort into their lego builds.
@@Mattz6 yeah I agree, it does seem like when people put weeks if not months on their engine then it looks the best
I hope this blows this up, your content is awesome
Thanks man
@Samuel Wilson True. You got some crazy builds
@@Mattz6 why is samuel wilsons comment deleted? also i tried to search him on youtube but i cannot find him... yes i have watched him before
@@scrapmechanicandlegoengine3096 Wow I dont know...
@@Mattz6 now i found a link to one of his videos and it just says that video is not available sooo... hmm
After watching this video multiple times it finally dawned on me how similar this is to a Detroit Diesel engine, with the exhaust at the bottom of the cylinders like a typical 2 stroke Detroit diesel, then you have the blowers as well, and the way it all works is very similar even in the way of it being an OHC, very awesome. Cannot say that enough!!!
You brought coolness to a hole new level man
your underrated if you made this legend
I love the engine especially the starter, I think that was a great touch.
This engine is crazy, I love it
That's actually really well done - Awesome!
That’s brilliant
Best engine ever, pretty cool
The best lego vacuum engine i've ever seen. Really nice work and i wish you all best!
Thank you!!
That looks awesome! Good job
incredible
You are genius man well done!! Great video
this was an instant sub, great work!
Thank you 😊
you are so underrated you deserve 1K+ subs
This one is very, very interesting... Nice job.
You are going places bro
P2 is going to be a whole car with that engine
Lol
Nice work dude! keep building!!!
you are the lego expert this engine is very cool
You have just won 20 bucks my freind this is by far the best most realistic LVE.
Wym
@@Mattz6 you need 20 bucks for this build
@@APERTUREAEC haha if only
That is so epic!
Plz make a full tutorial of construction of this engine, is the best engine on i see on youtube!
thx from Brazil!!! 🇧🇷
Sorry won't be able to. It is not a simple design at all, and replicating it would be really hard. But thank you!
this is a really cool design!
I think on the side would be a better spot for a belt tensioner- love it anyways
I think your design is really cool, and I have a suggestion for a modification. Your LEGO engine operates using a vacuum system that pulls air in, and you could add a throttle or restriction to control the airflow. This modification would help regulate the suction power, allowing you to determine the engine's RPM based on how much the throttle is opened or closed.
With the intake flap (or restriction) fully closed, the RPM would be at a minimum. On the other hand, with the flap fully open, the engine could reach maximum values of around 600+ RPM. Additionally, if you could modify the engine so that it generates more RPM at full throttle, for example, between 1000 and 1500 RPM, it would be very interesting and more realistic.
Amazing engine! Reminds me of what younger me used to do with lego, seems my lego skills didnt last but i surely hope yours will because this is really next level
Thank you sir!
Man, you are going places
This thing is awesome!
Beautiful
Great work on that lego engine, it's sick.
pure genius
Cool stuff man. Lots of thought in it.
Only problem with vacuum is that is roots your moc to its place. But im sure that it can use as stasionary motor for lots of things too.
Thanks for commenting. Yes, it's vacuum powered, but during the time I haven't been uploading I've been trying many different prototypes for non-vacuum non-pneumaric engines.
@@Mattz6 cool, i hope you will find something usable soon.
By the way- 2 month pass since i wrote that comment - since then i made the first ever moblie car powered by vaccum engine. I hope you will see it and like 🙏
Really nice build! You have a creative master mind.
Wow this is legendary
Спасибо
how much you wanna spend on production value?
mattz:yes
Yes
No I looked at the video and there spinning the opposite direction so it might spin faster
its a good project, i cant build sth like this, so i think it so dificult
That’s really fast for a i4
Seen some that were way faster, so not really but thanks.
id say using double sided tape without taking the strap to make both sides sticky is like one of the best gaskets you can get yourself easily because if youve used it you know its a bit squishy so it will get into any nuck and crany
Thanks for the recommendation!
@@Mattz6 and the strap is coated with a waxy surface so its like its always lubed
thats cool man
Phenomenal
WOW, I just got done with my 2 cylinder engine and I thought it was amazing but this... this is freaking cool!! good job!, if I ever make one of my self ill give you a shout out
619RPM idle is a good and realistisc rpm
Supercool build man! I was wondering how the superchargers deliver the boost to the engine? (Edit) are they like blowing fresh air to the intake when the piston goes down
Yup, exactly! More air in cylinder= more air for vacuum to suck.
@@Mattz6 I am sure this is not how it works, the piston is moving upwards because of the vacuum in the chamber and not the particles of air dragging it, when you add air to the chamber you are just slowing the engine because the vacuum cleaner has to suck out more air.
@@jantosone3380 as long as the intake valve is closed during the compression stroke it should work fine. There is more air volume which gets pressed downward on the piston. Also, the piston also pushes the air outwards, so it doesn't work like you described. The piston assists the vacuum in pushing the air outward.
@@BlueTechRSi don't understand what i wrote wrong. the only thing that i didn't mention was that the superchargers can help in pushing the piston down. because of this, this engine has only 2 strokes: 1 piston going up because of the vacuum, 2 piston going downwards
because of the flywheel and with help of supercharger. there isn't any compression stroke in this engine. also the piston cannot assist the vacuum cleaner in pushing the air outwards because he gets dragged up by vacuum him self.(edit) even in the video you can see it running faster without superchargers
@@jantosone3380is your point is that when exhaust port opens the supercharger blows air to make the piston move downwards faster?
im proud to be the 300th like this is really cool
So cool !
This guy gives me ideas😊:-)
Very very good job!
That's fucking awesome dude keep it up
Good job
👏
if you made a tutorial, you wouldn't have a price
who for - like
I managed to make my first lego single piston vacuum engine with scraps of my other lego sets and it works!!😃
Congrats!
Nice bro im making mine
@@davidstarbuck3966 are you building your first engine?
@@vasilepinzaru7862 My 11 year old Son is 👍
Cool i wish I had the parts to build that
Damn, that's nice
Only 3 hours to design
Wow you are fast
nice i wish i had some more bricks and stuff
can it actualy move a car if you were to builed around it
+1 sub.
awesome vid brother
Love the ones with the starter motors. What makes this a diesel?
Excellently designed engine, though. I can't help but think maybe a smaller timing chain would improve it's performance and reduce noise output.
I designed an inline twin 6x6 engine recently which has a similar unique feature of running a mechanical oil pump which forces oil through the engine as it turns. I'm gonna upload another video or two on it before I finally tear it down to make a newer version later on.
You might consider moving the cam down into the block to make it side valve again, or at least pushrod OHV as this will make the rotating mass lighter and lower friction for better performance. You might also consider making the valves the full 6 blocks wide, I see you used the trick of changing the outside pieces for the technic beams, but this doesn't always get you maximum performance. For slightly more you could make them fully open instead and gain some performance that way. Also, it looks like maybe your crankshaft has some wobble to it (One side twists before the other) causing the engine to be slightly out of time under load and causing it to run poorly at times. This is very evident during the supercharged run as you can hear one end of the engine clunking to keep up with the other.
Otherwise fantastic design and I'll be subscribing to see more
Thanks! So um let's start answering!
1. The diesel part of the name has already confused someone else. I wrote that it is a 'diesel model engine' not a diesel engine. The reason I wrote that in the first place is because when building the engine I really wanted to make it function and look like a inline 4 diesel engine. I also wanted it to be similar to a detroit diesel (hence the 2 stroke nature of the engine and the superchargers) and a catapillar diesel since I had so many yellow pieces. That explains the fairly long stroke, the diesel-reminiscent oil pan, the various design elements like the dual 'oil filters' and the flywheel and flywheel housing. I at first wanted to make the engine turbocharged but I just couldn't imagine the turbo to spin enough to even make some noise, so I instead opted for a supercharged system
2. In what way smaller? If you mean a half as wide lego motorcycle chain then I don't have any (though that would have been nice 😔). If you mean by making the chain shorter then it would be great it I could, but I already lowered the cam gear as much as I could since I ran out of chain links.
3. That's a cool engine idea! Sure is a unique feature. Would be nice to have something similar on my engine, but it's going to require too much work and also the removal of the supercharger, which will make the engine less unique xD.
4. I did already consider having the cam/valves on the side, but I scrapped that idea because on one side the valves will interfere with the supercharger, and having the cam on the window side will require long and heavy beams, and will make the looks of this engine worse (I really tried making this engine look and function as realistically as possible). Not only that but it would cause me to run into more timing chain issues because the 3 chain gears would be in a pretty linear formation causing all sorts of problems.
5. OHV engines are quite hard to make with limited friction, so you'll be losing performance if anything. Even if it did somehow have little friction, most benefits would be outweighed by the complex camshaft, heavy pushrods, and the lack of support. I would also have basically nowhere to put my starter motor and it's mechanism, making the engine lose a important feature. But I am considering somehow making the engine OHV later on by maybe just getting rid of the superchargers.
6. My valves are 6 studs wide. Also what outside piece technic beam trick?
7. Yes, the crankshaft it a bit weird but that's because if my lack of 0.5x3 technic pieces. The last cylinder likes to clunk because I kinda ran out of pieces and the piston is probably nudging against something. In any case I actually think it adds to the sound soooo kinda a win 🤷?
@@Mattz6love the Detroit diesel as soon as I saw the superchargers that’s what my mind went to
You should ad a transmission onto the back of the engine
Awesome I am really impresed and you can use not lego motors but normal like old motors you found it wil be faster I dont use lego they are exepensive and with your own you can put rubber band and here you go lego motor.
i really do like the video but, i think the engine would run wayyy better with a cross plane configuration. Which is 1 3 2 4
the next time you make a i4, make the pistons go like the middle 2 up first and then the sides, thats how most i4 piston patterns are
you are awesome
this is amazing bro! i tried a 6x4 aswell, single cylinder engine that ran off of actual fuel, and starter fluid, it worked a little bit, but it didnt do much. but all my legos are gone cause my mom gave them away and i wanted to experiment. honestly i might just 3d print my legos and cast them to metal so i can make a fully functional V-twin. what do u think?
Wow, that would be AWESOME. There were attemps on TH-cam for a working lego engine but the legos simply melted and there wasn't enough compression. Maybe with 3d printing and a foil-lined cylinder it might work!
Blud needs to upload again
sounds like a train kinda. sick build though.
how can a supercharger work in a pneumatic engine it just takes energy from the engine and puts it back into the engine, it can only make gains in an internal combustion engine
That is very cool!
Great work! :)
Thanks!
Your welcome :)
Holy Crap, that thing is awsome.
THIS THING IS SICK but if oyu want it to rev higher you need to balance the crankshaft but overall 10/10 build design
Thanks. But since the crank is situated in a 2 stroke position it is already balanced enough. Could be more balanced but it's too much work and I don't exactly know relative to what piston to put the counterweights
@@Mattz6 one more thing make sure that the middle 2 and outer 2 go up and down at opisite times so wheen 2 in mid go up 2 in out go down like a real 4 pot
@@the-evergreen The engine is technically a 2 stroke meaning the firing order is 1234. Making the engine have a 4 stroke configuration will reduce power and smoothness because 2 cylinders will fire at once.
@@Mattz6 on a real 4 stroke i4 there is only one cylinder firing at a time
Might as well add a Transmission😳
Would be cool but don't have enough parts or RPM out of the engine 😔
3 hours wow
Nice, but a proper 1-3-4-2 firing order and crankshaft would be proper.
Its a 2 stroke so there is a power stroke every 90°
You should make a throttle body
I thought the conversion from studs to cc is times .512? In that case, your engine would be 196.6 cc
I think you should make a engine that uses 2 vacumes
Only have 1 big one.
Bro toyota needs to hire you to build there engines
You need to teach me how to edit videos.
Was that a compliment or a legitimate request lol. If it was a request I recommended using adobe premiere rush on mobile. It is free and you get the hang of it easily.
Great buildt. Did it actually suck air?
Thanks for watching. Through the intake? Yes.
Are The Paper Gaskets Actualy efficient? and does the engine have Deacent Torque? because im thinking of making a lego engine powered by compressed air (5l with 4 bar] and mounting it on my bike
1. Probably. Though the supercharger isn't. Though it may blow some air, it doesn't actually seem to compress it enough to make power.
2. It has some decent torque but I think something like my inline 2 had more. For air powered lego engines I recommend searching up "pneumatic lego engine". This is a negative pressure air engine that can work with a lot less sealing and optimization. A positive pressure air engine on the other hand needs way more work to function properly so pre-made lego cylinders would probably work better. The youtuber "Green Gecko Technic Workshop" has some good pneumatic lego engine examples.
@@Mattz6 ik your engine uses vacuum but ik how to seal stuff properly like an engine built for suction so getting the engine to run aint my concern my concern is torque and fuel efficiency but mainly torque bcz if a 4 stroke 1hp 1 cylinder engine can get a bike up to 36mph whych is realy fast then it means that 0.1hp would be enough but even 0.1hp is incredibly hard to make with lego i had a 4 lego motors made then into one very compactly and then i did some math and figured out it does like 12ncm at 200 rpm whych is basicly 0.005hp them i realized putting that on a bike aint gonna work/be usefull. Since then i was thinking how to get something that made torque btw i was asking about the paper gaskets because like 2 years ago i made an experiment to see if see through duct tape was enough to seal it it sealed it 95% still leaked but very slowly
And btw i have not got a suction or presure engine to work even through i tried more then 10 times for the past 2 years
Paper gaskets probably only work for negative or low pressure situations. Duct taping a pipe if probably better for higher pressures.
Supercharger compress air not just circulate it, so technically not Supercharger
Sorta, tried to configure it like one anyway.
Fyi the firing pattern is incorrect, it's 2&4, then 1&3two at a time that way it's better balanced so maybe you can got more rpms out of it
Not the first time I've had someone point that out. The engine is essentially a 2 stroke, so having a 4 stroke firing order may make it more balanced, but the engine will have much less power. I thought about doing what you said, which is to have 2 cylinders fire at once, but I decided against it. That is because it would simply defeat the purpose of having a 4 cylinder. At that point, a 6x6 inline 2 would be much better.
Though I am thinking to maybe try to do so.
you should hook it up to a lego motor and see if it could power a light or something
Don't have a lego light. The engine speed, which is already slow, will dip below idle.
Dyno it lol, but actually. it seems pretty big displacement. Ill try buy some lego again and do something like this!
EDIT: I calculated that this is 307cc
Do you know any good ways of making a Lego dynamometer? Maybe using the white clutch gears?
@@Mattz6 unfortunately I don't cause I don't have any Lego stuff anymore, you could do a rpm Metee and message the tourqe from the clutch gear
You could put clutch gears on the shaft and show me the rpm with it and I will calculate it
Its Nice to see A realy good looking Vacuum Engine because i have been trying to get my 1 cylinder to work for over a year now and i have tried almost all the valve designs and it still didnt run because all the valve designs had way too much power needed to turn it over whych in the end over powered the engine and it would need like a very big flywheel to make it work and it woudnt be worth it at that point but 2 days ago i made a design whych i hope works but im not sure since the timing mechanism is 5 studs away from the cylinder so im not sure if its gonna work
do you have eny tips of making the engine run?
Make sure nothing is rubbing against anything. That is a sure sign of too much friction. Also the valve timing should be 90° ahead of the piston so check that as well. Also if you can try to lubricate the engine. Olive oil works the best, but I personally use a bit of lotion because olive oil is too messy. And thank you!
@@Mattz6 i used my own type of lubricant whych i hope is gonna work just fine im just gonna have to run it with my starter for 2 minutes and then i can try running it after i fix the valve timing because it uses gravity and i need to use a rubber band for it to return back otherwise it aint gonna run but i have used my starter and it could survive aboe 1.2k rpm so im not worried about it exploding even through u can unconnect the whole cylinder without a lot of force so im going to fix that tinny detail somehow idk how i dont have eny more lego pieces with stud holes but after i fix all of those problems i hope it runs. since it pulled the piston when i used my breath and then it stopped and it hasnt done that since but i hope with more suction its gonna work.well have a nice day and thx for answering. :D
btw u should try engaging the starter but not turning it on while running to see if it has the torque to do that since i dont think it does
im still confused how that 70 rpm the starter outputs is enough to start the engine oh no wait its 90 degrees ofset crankshaft per piston that makes sense
is it just me or does the engine do more rpm and is louder without the supercharger?
I don't understand what you're trying to say but yes, the engine is faster without the supercharger because the parasitic losses are greater than the added power.
what if u make the supercharger controled by electric motors and make it do a lot of rpm do u think that would increse the power?
I mean 31 hours wow,
It even sounds like a diesel
you can use is as a genrater
maybe u can get higher rpm if u use correct balance
Do you have the design from when you planned it somewhere? I'd love to see the planning behind this and maybe try to create something similar myself
Hello, thanks for the comment! I designed part of the engine on Lego Digital Designer. When I first built it though, I had a different valve design that didn't work (too much friction, I think), so I had to change it.
@@Mattz6is it possible to share the design?
@@stakedz Sure!
Here's the LDD file: drive.google.com/file/d/1D4v-8Gg10MB5qz9z_-mSSilGh7-1Be9S/view?usp=sharing
Hope this helps 😊
Looks like it runs better without the 'supercharger'
Not sure if you still reply to these, but do superchargers have a purpose in vacuum engines? It seems like all it did was hinder performance
If they make actual boost then I think they can, since there's more air in the cylinder for the vacuum to suck= potential for greater pressure difference.
Awesome engine, but how is it a Diesel engine when it’s powered by air
Hello! It's a "diesel model engine", because I tried to make it look like a caterpillar diesel engine or something similar.
Looks nice definitely. But while using the same parts a vacuum engine uses you missed the opportunity to "actually make it work".
Thank you for commenting! What do you mean by 'make it work'?
@@Mattz6 sorry I skipped through the video and only saw an electric motor. I missed the vacuum so I jumped to conclusions that it was just a realistic dummy. Great work making such a massive engine work.
Meanwhile I fail at my 2 cylinder dohc dohv design 😂
Can you make totorial 😂😂😂😂😂
Firing order is wrong it is supposed to be 1,3,4,2
Doesn't really matter since it's a 2 stroke. You can do any firing order and can work.