8-stroke engine?? How does that even work?

[@rayceeya8659]

Might have better luck converting a 4 stroke to a 2 stroke. With forced induction I'll bet you could get a little four cylinder like that up to about 300HP. At least until a rod goes through the oil pan.

[@bigjay875]

I like your idea but let's upgrade rods and Pistons and rings to give it best chance of working

[@gabrielv.4358]

@@bigjay875 I second this

[@johankriel8883]

DKW Auto Union

[@MrJdsenior]

Yeah, just pull the cam out altogether. You should make a video on youtube that says you did that and got 600 bhp, like the idiot this goofy crap was based on. :-) It won't do anything, BTW. Actually converting one to a two stroke (cylinder ports) would require near as much welding and machining as just building a two cycle from scratch, and would be far more of a nightmare.

[@rayceeya8659]

@@MrJdsenior That's why I specified forced induction. Pump the fuel and air in through the crank case and have reed valves on the pistons. Keep the cam. The intake manifold becomes another exhaust manifold. Biggest problem I see is where to source a roots blower the right size. Then again they're Russian so if they blow the engine in the experiment then who cares.

[@cubleycat]

This is on par with the “piston return springs” lol.

[@Sithhy]

which is funny, because people replace the valve springs in gokart engines (and similiar) with stiffer ones to gain some horsepower

[@tradismerrill2105]

Thats the problem they didn't install the piston springs.

[@brandonwillis4811]

@@Sithhy type piston return springs on YT its not what you are thinking 😃

[@DavesWhips]

@@Sithhy Valve springs are for higher rpms and are very affective, people do it in cars to not only go karts

[@27Zangle]

Sure is fun to dink around an experiment though.

[@cocusar]

I would like to see a behind the scenes and a recap of all these years doing crazy stuff! how it started, what do they do for a living besides these youtube videos, etc! would be amazing!

[@YourFatherFigure-]

It’s always nice to dream

[@АлексейЖуков-м3р]

They have a network of car washes, an auto parts store and a car service.

[@AndyKPOV]

Started with Vlad in a garage he owned. He raced dragsters and did lost of oval track racing. Worked on friends cars and what not. Slowly worked up from there. Then you throw in KZbin. He has a chain of auto parts stores in Russia. If I remember right he owns 4 garages/shops. He been doing this since the late 70's

[@AndyKPOV]

Started with Vlad in a garage he owned. He raced dragsters and did lost of oval track racing. Worked on friends cars and what not. Slowly worked up from there. Then you throw in KZbin. He has a chain of auto parts stores in Russia. If I remember right he owns 4 garages/shops. He been doing this since the late 70's

[@cocusar]

@@AndyKPOV Cool! I started watching these videos right when they came up in English, from that original little shop he owned! Nice to know about this. Also, do people over there know the brand? Or is he not so much known? I'm just curious because the quality of content I see here is straight out of what you would expect from a famous TV show

[@JoelGronstrand]

Try using one engine to supercharge another. By disabling ignition from the first engine, connecting exhaust pipes straight to second engine's intake and making the first one to spin (belt driving it with the second engine) at 2:1 ratio should produce ~1bar of boost pressure.

[@THESLlCK]

this is something that's actually been done

[@THESLlCK]

@@Zoey_KL gross, a pet abuser

[@GigachadAKM]

@@Zoey_KL - furries make the euth list.

[@StreetForged]

@@THESLlCK any more info on that for a non-furry? Sounds great

[@Xurikyo]

@@GigachadAKM nice bait mate

[@davecurlett2227]

If you simply double the number of cam rotations for each crank rotation, the valves would just open and close halfway through each piston stroke, pushing unburnt fuel out the exhaust and the piston loses compression halfway through the stroke. That's why it was hard to get those engines running, they essentially only had about half their cylinder volume to work with.

[@mcscheck2000]

exactly .... was doomed from inception...

[@teardowndan5364]

If the timing shaft is at the correct position for TDC, then they will also be in the same TDC position at BDC with the inverted gear ratio (half crank = full timing), which means the exhaust valve should cycle somewhat before half-way through each stroke and the intake slightly after with all valves closed for the first and last quarter of each crank. With everything else timed properly, it should have 30-40% of a cylinder to work with depending on how quickly the intake valve closes. Needs a turbo to force air-fuel mix through in mid-compression (after losing most of the "intake" charge to the exhaust valve opening during compression) to have a chance of working.

[@mcscheck2000]

@@teardowndan5364 Possibly yes. I'm too lazy to draw it out on paper but the addition of a charger (although I would go with a supercharger than a turbo since you would need a good amount of exhaust pressure to pack the o2) might do the trick....

[@statementleaver8095]

Considering "stroke" is number of pistons moving( lets not even start with waste cycle difference.....twinspark,water injected applications This Episode was never going to be a success. Adjusting the belts gave a few ° in timing. Causing over fuelling. "Crankshaft" needed to be swapped with V8crankshaft and the Pistons need to be half moon x2 to complete chamber Cylindrical shape. In doing so should mean half capacity engine running at twice speed creating normal power of 1 engine.

[@steamdriver6964]

Exactly

[@HSPOVgames]

In a 4 cylinder. Modify 2 cylinders as air compressors and feed them to the other cylinders. Self supercharged

[@gabrielv.4358]

This guy invented free energy! (The compression cylinders need to have a insane compression ratio for that to work I guess.

[@atsekjoker]

this would only feed the normal air volume of a cylinder. no extra boost

[@MrJdsenior]

@@atsekjoker It would be great, who doesn't love getting less, for more? Oh, wait.

[@NoctisIgnem]

This is already a engine design, you basically double the air intake of the other cilinders

[@NoctisIgnem]

@@atsekjoker in 50cc landspeed record they tried this, it forces the air in after the other cilinder almost finishes the inlet stroke, effectively putting in 100cc of air. This was meant to circumvent the 50cc limit so to say

[@lawrenceveinotte]

to me an 8 stroke would be to turn the cam at half the speed of a 4 stroke, i don't see the advantage, but i think it would run.

[@robertwilliams8116]

Very slowly, and that's what I thought would be an "8 stroke".

[@adam_maliś]

Exactly, now its 2 stroke hahaha

[@michaelterry9257]

I think it might actually be a 1 stroke because for a 2 stroke you get one full cam and crank revolution but here you would get a half a turn of the crank and 1 full turn of the cam.....then again a 1 stroke wouldn't really work, like at all

[@mikemapson7281]

@@michaelterry9257 - yep, I see it as a 1 stroke as well as the cam is running 4x it's normal speed

[@izaacbanks3337]

@@michaelterry9257 cam in a 2 stroke? lol

[@AndreS_-df2nw]

There are actually 8-stroke engines, the cam rotates once for every four engine rotations. They would have a heavy flywheel, cam grind would be very different, and would be good in agricultural pumps and some generator applications. Efficiency would be good, but output would be fairly low power though.

[@MariuszChr]

So what are the other 4 strokes? Apart from suck, squish, bang, blow?

[@alberto148]

@@MariuszChr pretty sure he doesnt know, but i think he is refering to the single cylinder hit and miss governor engines from the 1900's kzbin.info/www/bejne/np3GXpxtnN2Kb5Y

[@NIGHTOWL-jf9zt]

@@MariuszChr You hit the nail on the head. It's physically impossible. The only thing that happens is the repetition is 2x the speed leading to failure.

[@MariuszChr]

@@NIGHTOWL-jf9zt it maybe makes sense to blow gases twice for cleaner air mixture, but probably worth nothing seeing EGR systems...

[@bigpig187]

A stroke doesn't mean an ignition by half a piston cycle lmao It's like saying your car is a 0 stroke when you let off the gas

[@dar3726]

Try a 6 stoke set up. I have seen engine converted this way, where an additional power and exhaust stroke is added. Water is injected after the power stroke resulting in a extra free power stroke due to the water expanding onto steam. Then the chamber is cleared by the extra exhaust stroke. These engines do not require a cooling system! BMW experimented with this , however they gave up because they could not achieve the engine smoothness that they felt BMW customers expected. It did however achieve outstanding fuel economy and efficiency.

[@monad_tcp]

if you are going that way, you might as well add a low pressure chamber and turn it into a steam engine hybrid.

[@27Zangle]

@@monad_tcp - I really like where this is going.

[@danhatman3538]

Garage54 HAS to experiment with water injection! It was one of the developments pioneered by the late war Luftwaffe as an efficient way to cope with low octane fuel the Germans had to deal with

[@rhyswoodman6781]

I love how vlad was laughing from the very beginning at how ridiculous this 'hack' was.

[@the_kombinator]

If anyone knows anything about how valve timing works, they'd know it was a joke. I still watched it, in the same way I watched the piston return spring episode ;)

[@rhyswoodman6781]

Me too!🤣

[@mrclassic2284]

Screw 2 flathead engines top to top so both pistons meet up to fire at the same time. What could go wrong? So instead of horizontally opposed it would be an horizontally inpposed engine.

[@sloopkogel22]

Aren't there actually diesel engines like that? In submarines or smth?

[@michaelterry9257]

There are engines like this, sterling engines maybe? Can't remember exactly but I'd love to see their version

[@hyperboloidofonesheet1036]

The T-64 tank used an opposed-piston diesel engine. You can also look up the Fairbanks Morse 38 8-1/8 diesel engine used on watercraft and locomotives. And for fun, look up the Napier Deltic.

[@TheBibliofilus]

@@sloopkogel22 Old large 2-stroke diesels, but they tend to need forced air induction to work..

[@jdspeed99z]

I was totally thinking about an opposed piston engine with two blocks together but I didn't think about a flathead engine. Maybe do OHV for one block and a flathead for the other. That would be wild!

[@Dia1Up]

This was absolutely hilarious. I'm no mechanic, but wouldn't an 8-stroke mean the cams are spinning half as fast as a 4 stroke? Wouldn't a smaller cam gear make it turn faster?

[@RickZanardi]

Yes. This was more of a 1 stroke engine, the same stroke I'm experiencing by typing something as moronic as "1 stroke engine", but still, 1 stroke of the piston has the cam to do two full rotations, so yeah, 1 stroke even if it makes no sense at all...

[@trogdorburninator6627]

One of the few that wasn’t a 107% success rate - wonder why? 😜.

[@anonym3017]

6 strokes are relatively easy by having a high pressure engine and a secpondary low pressure cylinder in a 2 stroke configuration

[@sebi0037]

I see your idea! Though, in that configuration you have a 4 stroke rotaion and a 2 stroke rotation, that alternates. I guess that's what you meant. Would be fun to try that out, but it will cause a lot of vibation and it puts the crankshaft under an uneven stress.

[@bobbyvarnell9350]

A windmill company named Aermotor built a single cylinder 8 stroke engine in early 1900s to pump water. Really neat little engines.

[@bo-dine7971]

It's amazing the kind of incredible stuff I can find in the comments on an April-fools -style of video, lol!

[@phildelsol97]

I kinda always wondered weird stuff this channel does I'm very glad for garage 54 being around thank you guys

[@JM-fv9kl]

What about making a good old 2-stroke engine, by putting the same pulleys/gears on the cam and crankshaft as well, getting a 1:1 ratio?

[@lsh3rd]

Though 2 strokes typically don’t use valves, it seems as though with a little cam timing work this might actually work! Great idea.

[@bobalex6323]

Poppet Valve engine. They have done, on a VW Diesel engine. kzbin.info/www/bejne/oaDXanqPd8p2gJo

[@jublubb]

I think they misunderstood. This is a 1 stroke now. 8 stroke means 1 camshaft rotation = 4 crank rotations They have do double the cam gear size

[@richardrozeboom4357]

idea> 5 stroke engine cyl 1 & 4 dump their exhaust in collective 2 & 3 2&3 respectively echaust via inlet valve gain extra power by injecting water in 2& 3 most modern engine

[@overseerofyahweh7811]

Make a 4 cylinder engine out if single cylinder motors to power a Lada.

[@IamCanadianBacon]

I seen some one make a 4 cylinder out of single cylinder engines.

[@tahahaider5836]

@@IamCanadianBacon hes a taiwanese guy but he does that to motorcycle engines.

[@snakehead3650]

You did not actually create an eight stroke engine it's more like a one stroke or half stroke. In order to make it an eight stroke you would have to make the cam gear twice as large

[@erikcourtney1834]

I was going to say the same thing. Cam rotates 8 times to 1 rotation of the crank. An 8 stoke would have the crank rotating 8 times to 1 rotation of the cam. Hence a 4 stroke is 4 strokes to 1 cam rotation.

[@troysmith4363]

This is right! You had the crank only doing one cycle the valves were opening while is trying to compress hence why it was spitting out of the carb!

[@System0Error0Message]

i think you got it backwards. given a regular 4 stroke of intake, compression, expansion, exhaust, try 6 strokes first of intake, compression, expansion, compression, expansion, exhaust. With this you will want to run the air fuel ratio as close to middle as you can but you would need to be careful not to combust any nitrogen. You can also try a different way by running rich initially then lean, For instance intake (rich), compress, expansion, intake (air), compression, expansion, exhaust, which is 7 strokes. However for the 2nd intake to prevent any materials traveling the wrong way, a turbo could help. Nowadays there is an engine in development that uses a piston to combust the product of another piston which if you did would halve the effective number of cylinders but give you 8 stroke, That means after 1 cylinder goes through 4 strokes, at the 4th stroke the exhaust is the intake for another cylinder but it does not take any air in. This method though has to run cool to ensure it doesnt combust the nitrogen instead.

[@Crimsonedge1]

4:25 Just watching the man trying to keep a straight face. Trust me, I was pissing myself laughing for you buddy.

[@michaelharrison1093]

A challenge for you is to build a legitimate 6 stroke engine with a camshaft gear that is 3 times larger than the crankshaft gear and regrind all the cam lobes - the 6 strokes are intake, compression, power, exhaust, scavenge in, scavenge out. You need to do this on a sequential fuel injected motor so that fuel is only injected during the intake stroke.

[@mitchellpatterson1829]

I always wondered about a 6 stroke engine. Intake (fuel), compression, power, exhaust (fuel), intake (no fuel), exhaust (no fuel) Fully purge the engine with each combustion cycle. Should be able to make water cooled power on an air cooled block. Reduce the weight massively, and a turbo might improve heat scavenging. With the turbo you might leave both valve open for the flush stroke?

[@MushookieMan]

That's a bit like a hit and miss engine.

[@austinmaxi]

Spin the Camshaft the same speed as the crank...add a supercharger.. would be 2 stroke, bit like a Detroit.

[@DarioDosen0000]

I was thinking the same thing. Would love to see how would it behave under throttle

[@RubyRhod]

Cam shape and cam offset doesn't make it 2 stroke ever. It just won't work

[@austinmaxi]

@@RubyRhod if these blokes can do what they do with engines.. reprofililing and changing Lobe seperation and phasing on the Cam is child's play. There are a few supercharged Poppet Valve 2 stroke conversions about on You tube..

[@RubyRhod]

@@austinmaxi yes surely they can do it, but they will have to modify the camshaft.

[@lukehanlon9965]

Always fascinating stuff! I wonder if you can do an opposed piston engine?

[@AnalogDude_]

i would like to see casted lead pistons. be sure to include copper rings in de casting to hold the piston rings and rod pin.

[@adriancarter825]

Great video love the experiments all the best from 🇬🇧 uk

[@json8172]

you guys are getting closer to 1 million followers. congrats.

[@danw.3291]

A thought I've had for a long time now would be taking two Toyota 22R's and mounting them side by side and either have them fire together... meaning one piston on each engine firing together or some kinda eight cylinder having one Piston fire at a time....

[@hheywire]

Double the rotation of the cam shaft instead, let’s see firing every other other stroke! I’m curious if it could over come the extra dead spots in firing.

[@bitsnpieces11]

There were 6 stroke engines. 1-Power, 2-exhaust, 3-intake (no fuel), 4-exhaust, 5-intake, 6-compression, Next 1-power. The idea was to flush put all of the exhaust gases and get plenty of fresh clean air inside. I can see adding another two flushing strokes.

[@michaelharrison1093]

How about trying to build a 2 stoke Lada engine by making the crank and cam gears the same size. You will need to work out the correct cam profiles and add a supercharger to make it work

[@danieljerke980]

An actual 8 stroke engine is much more complex. found this in some forum: 1. intake 2. compression 3. power/ignition 4. exhaust 5. water intake and 2nd power stroke (pulls in liquid water, which boils and turns to steam, driving the piston) 6. steam recycle (exhaust steam expelled to steam electrolysis module) 7. hydroxy gas intake and ignition (pulls in hydrogen/oxygen gas mixture from electrolysis module) 8. exhaust (exhaust water vapor expelled or recycled)

[@rokitman5753]

Maybe it needs to crank over faster you need to put 24,36 even 48 volts to the starter

[@lucasvanhamburg4937]

that would just fry the starter, they should try spinning it up with another engine via the gearbox

[@gabrielv.4358]

@@lucasvanhamburg4937 seems to be a great G54 way to do it

[@sembenorimaki3155]

they have that soundbarrier breaking-wheel spinning/launcher machin around lol, maybe it could spin it fast enough]?

[@MrJdsenior]

@@lucasvanhamburg4937 Nope, I actually did this with a car that had been sitting with the plugs out and would almost start, but not quite. Obviously I just fed the 24 to the starter, not the rest of the car, but it worked fine. I didn't turn it long and let it cool a while between attempts, but the starter worked fine afterwards. Try to turn it for 30 seconds with that kind of current flowing though, and I expect it might less than the 30 seconds. Got it running and it started fine on 12v after that. The engine was pretty much junk though, as I expected it would be. Somehow rings just don't seat that well in pitted cylinders. 😕 Fine though, an excuse to upgrade the old style 318 (66 Fury) to a hypo 383. Much more fun.

[@AnonYmous-qg4ph]

Changing the camshaft rotation doesn't change the # of strokes. All that does is open the valves unnecessarily during the 4 strokes, resulting in lower cylinder pressures. It still has 4 strokes, intake, compression, power, exhaust...what are you going to add??

[@Arya-rv9gd]

7 strokes

[@donnicholson5762]

An 8 stroke motor actually has the camshaft turning at 1/4 the speed of crankshaft, not twice the speed. They were used last century for use in dairies. They were governed to 1000 rpm to give drive to the cream separator & the camshaft was brought out as a 250 rpm for the vacuum pump

[@altruismfirst6489]

Please revisit Diesel to Gasoline engine and put in original pre-combustion chambers un-modified because last time they were opened up and ruins pre-combustion desing which would work perfect with gasoline and also then test with pre-combustion sparkplugs!!! 1, 2 and 3 combustions!!!!! super efficiency!!!!

[@russellbergersen3296]

I'm surprised the valves didn't hit the pistons. I'm also surprised that you didn't have a fire.

[@lsh3rd]

I’m sure they chose non-interference engines for this reason.

[@glennbartlett416]

It's actually double the size gear on the cam or at the top, or half the size gear on the crank on the bottom.

[@tomwilson2112]

If they sped up the camshaft, that doesn’t make this an 8 stroke engine. That makes this a 2-stroke. And that needs some significant changes to the timing and probably the intake system (ie a supercharger) to make work with a multi cylinder engine.

[@euace1027]

I would try this experiment with some valves added to the intake, i mean directional valves so it can't spit the air and fuel back thru the intake manifold/carb. Then it might work, currently because the valves open twice as much, during compression it pushes the air/fuel mixture back thru the intake. That's why you don't have compression either

[@johnfudacz8495]

cam shaft will not allow enough fuel to stay in combustion chambers, if the cam is in time the exhaust will open before compression so no compression! if you can see piston location to valve timing you should see why it dont start !

[@howardkoster4026]

If going from 4 stroke to 2 stroke increases power, because a 2 stroke fires twice in four cycles, then why would one think an 8 stroke could produce more power? You guys proved it does not work!! Well done !!

[@ronniemaeker9102]

There is a 6 stroke engine that does work...with water injection as the other "fuel"... It takes an injected engine and turns two of the strokes into a "steam" engine...cooling the engine in the process... I think Mr. Crower, of Crower cams, built one...

[@ChargerMiles007]

Here is the problem: You are running the camshaft 4 times as fast now, so you have gone from a 4 stroke to a 1 stroke! Hint, that won't work out very well ! Put the same size of sprocket on the crank and camshaft, and you will have a poppet valve 2 stroke. You will need to add an exhaust scavenger pump (aka a supercharger), or butcher up some type of compressed air system, or even a fan. You also need each cylinder to have spark every crank revolution. Anyway, it will indeed run as a 2 stroke, I know this will work, since I did it with a 1 cylinder 4 stroke Briggs lawnmower engine, using a piston supercharger. Happy welding guys! ChargerMiles :)

[@stacyp4534]

I’m not sure but I think with the valves opening half way through the cycle the exhaust valves are opening during a compression stroke pushing fuel and compression out the intake.

[@nathanwest2304]

can you try making a 5 stroke engine? it's a real engine concept that kind of still is in development apperantly, it looks to be simple enough

[@ColtonFranzoy]

Love the videos guys!

[@testphone5020]

You would have to shorten the Stroke of the pistons to like 1.4 inches and when it starts off the start that's only because there's leftover fule in the cylinders or put a bigger cam in it to make the lifters stay open long enough the fule don't come out the carb

[@trex5703]

Don't skip 0:49 to 1:39 support this channel. He does a great job!!

[@markysspotlight2472]

This one was a fantastic idea Vlad! 💡 let's see something similar next video! 😎

[@normiukkeli3739]

This would be a 16 stroke. For an 8 stroke the crank and cam gears would have to be the same size.

[@misterdeedeedee]

that would make a 2 stroke

[@michaelmacleod]

BTW for the translator, GRAND is only really used when talking about money, ie 1 grand as in 1000 UKP, but for normally it would be called 1 Kay for 1000,

[@filipsjoberg6201]

Would be very cool if you tried making a lada v8, from two normal in-line 4s

[@tommyhallum2054]

The only thing close to this that I've ever heard of working was I believe Ford had a small block v8 it might have been the 1st of the 302's that you could swap 2 of the cylinder's firing orders and generate more power I think the engine was less efficient but you made a significant jump in power. maybe 30/40 hp which is significant for the amount of work required.

[@Jacksonkellyfreak]

4/7 swap. works on gm small blocks too

[@larryphillips4164]

Awesome. Love y’all. Keep up the good work

[@coffeear]

The valves do the 4 normal Strokes the problem is that the piston ONLY does 1 cicle so you have intake and compresion on the way down and explosion and exaust on the way up . So you Will have spark at tdc but no presure in cilinder as you just did exaust on the valve side

[@tonyloechte9994]

Still a great reason for me to drink beer and watch you tube.

[@aadiljones7494]

It will start if you get a starter on the cam gear or if you get a starter to spin the crank fast enough

[@gabrielv.4358]

I know! Just repeat the intake, compression and power twice and then exhaust, bang, 7/5 (8) stroke engine

[@EF8SQUAD]

“Lets check the spark” “Oh man that’s enough to kill an elephant” 😂😂😂

[@victorsteerup4582]

Should have tried the Same Size pulleys on crank and cam. That would have given a two-stroke engine. Would need a blower to force air-fuel into the engine. This was experimented by big car manufacturers about 10 years ago. Thing is, at 4 thousand rpm, the valves think they are operating at 8 thousand rpm. But low end power is awesome.

[@JackLoyal93]

I swear I once saw an animation of an engine, two smaller pistons on eachside of a larger one, instead of having a piston push out the exhaust pipes, the two smaller pistons would push their exhaust into the larger piston to be used in its combustion process. That, or maybe it was a set of three pistons which would use the exhaust of the piston in front of it to try to squeeze a bit more power out of the fuel. It might have been some sort of boiler engine, or steam turbine engine, used in some sort of marine application.

[@janreitsma1096]

you should build 2 lada engines on top of each other so the cylinders against the cylinders no valves or cam shaft

[@atsekjoker]

where does the air come from and where does the exhaust gas go to?

[@fanplant]

like an Opposed Piston Diesel Engine, i like it!

[@atsekjoker]

@@fanplant you would need a cylinderhead between the two motors with side valves, ore bore the block to press air into it and let out the exhaust gases

[@fanplant]

@@atsekjoker not a head as much as a spacer with intake and exhaust ports and valves. That is unless they drill ports in the cylinder walls and make it a 2 stroke. Oh those poor Lada engines

[@nicolasgiasson2449]

9:35 love that bubling sound of engine withou exh. manifold

[@goldenhippie6352]

Question, I know you've experimented with using material such as plastic to make pistons for your engines.. have you ever considered making a plastic or wooden block and stick the steel eternals inside of and see if you could start it?

[@vcmdpropulsion126]

now what would be a good idea is something like my prototype cam shaft for a v6. instead of firing one cylinder at a time, it fires 2 at a time on the same power stroke. basically 2, 3 cylinder engines .

[@brushbros]

"Dude" is a handsome and capable helper isn't he? He will be as capable as you one day. Bravo.

[@ashiehakoto1490]

if the crank is meant to rotate twice for every rotation of the cam, then having the crank and the cam with the same size pully, it should run like a 2 stroke. and that should work.

[@alexoffroad2660]

I have a request… One time me and my girlfriend went off roading in our manual jeep and she stalled it in first gear going up a steep hill and then rolled backwards while still in first gear and the engine started up again but instead of running normal it was running backwards sucking air through the exhaust and blowing exhaust out the air in take, I wanted to re-create it but didn’t want to wreck my jeep you should try this from my understanding this means there is multiple gears going backwards and reverse would be forward PLZZ TRY

[@bitsnpieces11]

I think maybe the exhaust isn't open long enough to blow out the burned gases and the intake isn't open long enough to pull in enough fresh air. The camshaft was different on the 6 stroke.

[@__...Michal...__]

These engines are 4strokes in 2stroke cycle (it suck & compress in first stroke, then it ignite & exhaust in seconf stroke (when piston is going up)). Try 2x smaller wheel on crankshaft, maybe it will work. It would be interesting to see working 8stroke engine.

[@drsm7947]

is this 8 stroke possible suck, squeeze, 5x bang and blow

[@knobsdialsandbuttons]

Great video as always ! 👍👍

[@vaprobe87]

If you could chop up the cam shaft and reweld it to where each cylinder would 2 consecutive strokes of each cycle It MIGHT run that way if all the compression didn't escape between the first intake stroke and second intake stroke. If you could somehow use one way valves so that the compression couldn't escape back into the intake manifold when it went for it's second intake stroke you could pack alot more air/fuel mixture in the cylinder before the power strokes. I could see how that would make more power atleast for the first power stroke. I don't know that it would translate in to more power overall seeing as how a 4 cylinder engine would essentially have to free spin between power strokes and it would probably throw the Ballance off. Haven't ever thought of this before that's just the main points I could think of trying to run it through my head

[@velomobileusa8293]

Lets see a Russian airplane engine in a lada! Much love from USA garage 54

[@ecomotive6158]

The starter motor died on my truck last week and had me stranded. It made me dream up an idea for your show to bypass the starter: Having a small auxiliary motor to get the truck rolling for a push-start. Maybe a chainsaw under the truck but the chain goes around the driveshaft to turn it. That would take advantage of the gearing ratio in the rear differential. Perhaps even more gearing-down is necessary. You could reach under the truck, pull the chainsaw cord to start, then get in the seat and throttle up the chainsaw while in 1st gear with clutch down. Even if it takes a while, the truck could eventually get enough speed to dump the clutch and start the engine.

[@theplayer12312]

yes, there have been (old and big) engines with pony motors to start them before, this isnt new

[@quevicular]

You got the pulley sizes backwards for eight stroke. He would want to leave the bottom pulley the same and double up on the size of the cam pulley

[@Bodgemiester]

Fit the correct size pulleys 2:1 but use a V belt or a serp belt. See how long it takes to go out of time. That would be fun!

[@frankp.9655]

Hi, How are you guys... I'm a big automotive guy. The Idea and Theory is there. I think you need an engine that has 2 Spark Plugs so she can Fire Both on the Compressor Stroke and the other on the Exhaust Stroke... This might have better success....

[@brandonsilvay4822]

Because the cam is rotating twice for every rotation back from below it's opening during the compression stroke turn your timing 180 out since it's coughing out the intake it's backfiring it might actually try to start but it's going to run like s*** that's why they make things a certain way

[@the_kombinator]

3:52 Damn I remember fitting the wrong tensioner to my 4G63 not that long ago - I started the engine, went out to go see how it was running, and saw that the belt was slowly walking off the crank. I pulled the coil lead as fast as I could. By the time the engine died down from a fast idle. the belt was more than 3/4s off the cam sprocket. Imagine if I had stayed in the car? Piston and valve kiss.

[@malakihayes9774]

Try Is forced induction like a Turbo it would fix the stale air If the cylinder through it may not fix the timing issue

[@elonwhite6628]

Because the engine is being turned over and the valves are opening and closing at a much faster rate than usual this could cause the engine to spit out fuel rather than suck it into the piston

[@Zayka007]

Maybe it will work if you spin the motor faster at startup, for example welding the crankshafts of the normal and the 8 stroke motors together and the normal one acts like a starter.

[@SP-mp9yi]

Haha 😆 I was wondering if I had it wrong on valve s needing to be closed now and again for the whole thing to work. 8 stroke is half the power of a 4 and the 2 is completely different design. Try building an Opposing Piston engine from 2 bolted together somehow ? 2, 2 stroke diesels might work if there easy available.

[@fliegendeaufnahmen7307]

Can you get a motor to run the other way around? So rebuild intake manifold to manifold and manifold to intake manifold and everything so that it runs?

[@kylevizbara9891]

Try adding one way valves to the intake and exhaust like on a snowmobile

[@jasonbirch1182]

So you should supercharge one engine with another or one bank of a V8 with the other. Make the valves in one bank open and shut so it only blows air, no compression stroke, pumping it's air into the other bank. It should make 1 bar of boost since the air will be doubled.

[@Jamo65962]

Best channel!

[@sugavmig021]

Idea for the a upcoming video! Instead of the engine spinning a shaft, try fixing the shaft in something really steady, and spin the whole engine instead! 😁 Maybe car engine will be hard, but a little smaller engine

[@lancelima9786]

The 2nd engine has a simple spark ignition system so that's why it started

[@Gkitchens1]

Lol yeah definitely would need to cut the fuel down and make sure timing is absolutely perfect along with great valve seats.

[@stevenhale600]

You would have to have the cam sprocket bigger to make 8 stroke.keep the original crank sprocket and double the size of the cam sprocket.

[@PexiTheBuilder]

"How does that even work?" Good question, in middle of compression opening exhaust valve releasing pressure and get only half compression for ignition. And then opening exhaust valve again too soon and get only half energy from combustion. And this suppose to add power?

[@throttleblipsntwistedgrips1992]

4 stroke refers to the number of pistons movements. It's still a 720° firing order. Need to have each cylinder to cycle on time without ignition and return to bdc. I think it would be a 1440° engine at that point, each cylinder firing at 180° instead of 90.

[@High_Caliber]

production took a step up lately.

[@garbageman3992]

this seems more like a 1 stroke engine, for every single piston stroke the intake and exhaust valves open so it is trying to be a one stroke engine. if you wanted an 8 stroke engine you would have to put a bigger cam gear so that the piston does multiple strokes before the valves do their thing.

[@JM-mn4ph]

Doesn't multiplying the camshaft spin actually reduce the number of strokes? The valves would open during the compression and firing strokes. That drops it to a 2 stroke. Slow down the cam rotation in order to gain more strokes. Maths?

[@MrBanaanipommi]

in this video it was 1/2 stroke :D

[@vyruss000]

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