The Most Powerful Two Stroke Ever - progress so far
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- Опубліковано 30 вер 2024
- Honing the cylinder to size, performing a hardness test, and answering questions/explaining things.
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I'll be going through and answering comments as soon as I have time, hang in there!
2STROKE STUFFING ur making history rock on bro🤘
Responde aí amigo não fala o segredo
Can't wait for a dyno run... Need my fix..lol great work as usual
Did 50cc racing in France during some years. It's fascinating seeing someone continuing the small 2-stroke development. On Derbi base block we reached 19.2Hp. ( almost 400Hp / liter) I'm so curious howmuch HP you will get out of it! Keep up the good work
I am working with some small nitro engine for rc cars. This can reach about a HP per ccm (1000 HP/liter)!!! I have one with 0.85 HP at 1.2 ccm. Bigger ones have a better HP to ccm ratio but this engine is so small and has already so much power. Love it! ;)
@@maxischerr What kind of RPM do you need for that kind of specific power ?
@@hojnikb "Only" 30.000 rpm.
You are the 2stroke wizard just amazing skills you show. Fabrication, computer designs, casting, chemistry, imagination and the motivation to follow your idea through. Very impressive 👌
2srtrok fanaat to croomand uithonen
I know you sort of stick to 50 cc moped engines...but I would love for you to make a 500 cc cylinder for a CR500 or a KX 500!!
Lots of wibration
@@janeblogs324 Just make the motor mounts out of springs and rubber bands
Take his concept, duplicate 10 times, and have a v10 2 stroke monster!
Everything he talks about is more or less scalable to any size you want!
I'd like a 4 cylinder inline motor with this architecture.... LOL!
A Chester lathe mill combo looks like a good option (for me anyway) 😊
You sir, are fascinating madman, thank you so much for sharing your antics with us all.👌
I always see these videos pop up right when I am getting ready to crash out lol
😂👍
When it's finished the obvious conclusion would be a trip to Bonneville salt flats, the worlds fastest moped would be a fitting accolade for all your hard work
the whole motor would fit in his carry on
Yes!! Make a Go found me and I will gladly help. Make a little documentary of it all. ua-cam.com/video/m-7juUCcSoU/v-deo.html
Full on but munroe styles
You are Burt Munroe! en.wikipedia.org/wiki/Burt_Munro
Yaaaaaayyyyy 2strokestuffkng uploaded! Gunna make my night.
Great stuff,
100% the best idea, pink floyd booze and a smoke !
If the coating is harder than cast iron, I suppose you can run cast iron rings without issue.
At least for a couple of test runs and then you can check/measure for wear.
Hi hope.we can make something.im not to stupid.then maibee we can do something I prepare my engine.then can make you help maibee?
croomwand uithonen, 40 yers ago yamaha 4over maat
Always excited to see another video uploaded! While you wait for your piston and head, You could try out your plating process on a working engine that you have not put 100's of hours and $$$ in to (hone out and re-plate) and see how it goes? Can't wait for you to have a running engine!
I for one, will never complain about the price of re-nickelsiling after watching this process.
You and AVE (youtube) shoulds work together, he is doing a similar community prototyping thing with his 5 axis cnc he got specifically for that purpose.
also, there is an equation you can use to calculate the coating thickness. Google: "electroplating material science coating thickness equation". i forgot to comment it a while ago.
I have a small chinese 7x14 lathe and a small chinese mill and i love both of them.People that hate them generally haven't ran them they can be extremely accurate with the proper setup.I say if it fits your need then get them . Keep up the good work
I thought of writing a long paragraph about how seeing a new two stroke stuffing upload makes me feel like but as I'm watching this during my lunch break and work starts again in 20 minutes, I just wanted to say I absolutely fckn love your videos more than any other videos on youtube. I always get really really excited when there hasn't been a new video in weeks. Thanks for the extremely well made and addicting videos! I am sooo looking forward to see the result of your dream cylinder! I just love two strokes and the simple way they work and how many things there are to make them more powerful. I ride a Husqvarna WRE 125 1995 myself and its loads of fun! I luckily found a HGS tuning Pipe for this model, which is extremely rare cause my year was one of the last years where the pipe would go to the left of the bike and then to the right of the bike to the silencer. Sad thing is that I absolutely don't know anyone who could do the jetting for me cause there is nothing to find on the internet about this particular pipe. If anyone reads this I would be so damn thankful if anybody could help me with the jetting. Again its a Husqvarna WRE 125 1995 with Mikuni TM35 and a left side HGS Pipe. Thanks in advance kind stranger!
Edit: I would be happy if anybody reading this would like my comment so it will be higher up in the comment section and maybe someone reads it who can help! I count on you, two stroke stuffing family!
I hit like before the video even starts playing, I already know it’s gonna be good 👍🏼
Ditto!
I celabrate with Guinness and Green Day over here in Wales when i get something right!! lol!
Great Video Alex... Thanks Mate..
I am watching from New Zealand. I compare you to the World Famous
Bert Monro of motorcycle home build fame... good luck & well done so far. Modern engineering has come a long way from mid last century...
That's quite a compliment!
I'm honored, if anyone's a hero for me it's him.
@@2STROKESTUFFING I live about an hour away from Invercargill. E Hayes & Sons have most of Berts collection, a great collection of other motor bikes too. John Britten springs to mind also.
Good luck Brother...
Two-stroke resistance Brazil, great work, do not stop, hugs!
Thanks!
One single SMALL scratch is all it takes to do a Rockwell hardness test! You attempt to make ONE little scratch, starting with the softest file and work your way up until one leaves a barely visible mark. Then your hardness number is somewhere between the last file you used (the one that made the scratch) and the previous one.
Please, next time don't scratch all your hard work to hell completely just for a hardness test.
Other than that one nit pick... Keep up the awesome work dude! I can't wait to see you achieve your goal!
Thanks! Great advice!
You *can* run the softer coating, as long as you are using piston ring(s) which are made for softer cylinders than Nikasil ones are. Maybe a ring meant for nodular cast iron cylinders? Not entirely sure what hardness those are, but rings for Nikasil cylinders are notoriously hard.
Nice just the best thing to wake up to
👍 Thanks
What a long road you are traveling with this project! it's really admirable the effort that you put in it, I can not wait to see the final result and hear the roar of that small but powerful engine again!
Even if you use the solvent I'd hone the bore out anyway, hone pattern will probably give the new harder plating something to hang on to.
Re the mill, get a "Mill Drill" (be sure to get a geared head not belt), Ive had a chinese one since 2005 and for first 11 years used it daily in my business and it is still good.
I've got an old vid doing some work with it on my chan. ua-cam.com/video/V6AEZ6dSRIU/v-deo.html
Most used bit of machinery I have and aside from milling you'll never used your old pedestal drill again once yo have one.
Thanks for the tips!
It's ok, since it's harder than iron!!
Dont let the amount of work needed to get the cylinder hardness to the correct hardness stop you. Rather do it right the first time so that you dont have the possibility of a problem looming in your mind the whole time. Will be worth it in the end
Good advice!
your coating is fine just be particular with the hardness of your ring material a broad dissimumularity is prefferable.i applaude your tenasity.
those small lathes are awesome. dont let people tell you otherwise. i got one 2 years ago and had so much fun with it. but keep in mind that you really need time, the machines are not very powerful and also not very rigid, not saying they are floppy or something, they are just too small for heavy work. if i were at your point, i'd go for the milling machine first - there are many things that require either flat surfaces or precise holes, thats what a mill can offer, a lathe really just can make round parts with holes in it (yes you can do a sqare and stuff but still, a milling machine is more useful for general fabrication than a lathe)
Kreidler crankshaft stroke 39,7 minarelli Am6 stroke 39 But I measure 39,6
I did not go back and look but, your metal/CBN matrix is still nickel based, right? You might need to just up the powdered CBN amount, the SiCarb can't hurt though. CBN is harder than SiCarb. I happen to work in a commercial investment casting business (mold maker, machinist really, that works in the tool shop for the wax pattern molds) that uses vacuum aided filling for certain specs with certain materials. Here's some food for thought, we put the whole investment under vacuum in a larger container, vacuum all around the porous investment (fired, preheated investment, should still work on unfired) except for the sprue which is under the surface of molten aluminum. Think about it.
We also prototype 3D printed parts, I'll ask what product we use to protect the pattern. And,last but not least, your telescoping gauge method is now spot on, congrats. If you want to ask me questions about investment casting, I believe you can contact me through here.
I edited to say that the investment is turned upside down with the sprue under the surface of the molten aluminum and the vacuum applied to the entire outside of the investment
Whilst the Nikasil bore has clear power advantages, the time, effort and cost of perfecting it will eventually prove to have not been worth it at this stage. How long have you now been stuck on it and you still have big problems...? It would make far more sense to perfect the design of a running engine with a steel liner and at the final stage add a Nikasil cylinder. Any changes in the cylinder/port design moving forward means a new cylinder every time!! I cant see the Nikasil will affect any other part of the design that means you need it now. I have no idea why you are fixated with heat transfer through the cylinder wall when there are easier and better ways to solve any heat problem on a test bed engine...How much would it cost to have the final cylinder plated and how long would it take...compare that with what its cost you so far and how much time you have spent on it...
Let's not forget that a chainsaw can run on 50CC. Also, it will be good to have some friends lend a hand. That will take some of the pressure off.
As always, your videos do not disappoint sir !
It’s coming right along,Thanks for sharing !
Kevin
Congrats on your progress! As always, very interesting to watch. En hilsen fra Bergen ;)
Almost successful. Diy cylinder.Are you use rotary valves or reedvalves and also what type of forced induction system or boost bottle is used?
This has been my favorite channel since you stared this series. I was going to say a few videos ago that you need a lathe and mill! Keep up the wideos mate.
When you get ready your project, start to produce powerful sylinders to suzuki pv and s1. 🙂
We need more films You are the best
Thanks!
SHINE ON YOU CRAZY DIAMOND. as always very interesting, and entertaining. continued success be yours. from an old guy in Va. USA.
Brilliant work! I still believe that a piston ring that wraps around the piston twice much like a four stroke oil scraper ring would solve the port clearance problem. By circling the cylinder twice you will have 720 degrees of contact an the piston ring will remain a perfect circle and will not expand into the large ports. If 75% of the cylinder is opened for ports this will still give you 50% contact. if you use a ring that circles the piston three times your cylinder is now 1080 degrees and you have 75% contact "in theory".
Stupid and crazy ideas, is what got my prototype up and working. Been running full advance on the ignition timing ever since.
It's like buying A bottle of octane booster rated at 200 octane.
cast iron liners and rings best, cheap to re-bore and nicasil plating does not last, Mercedes went back to iron liners, i know you will disagree but ive been down the nicasil 2T road and come back, good luck.
Less than 40 HRC is pretty low, I cannot see this being durable at all. Yes it would work, no it would not last...
I'd pursue the silicon carbide route. Having said that I think you have a lot to learn on how to manipulate voltage and current during plating to achieve better results with boron nitride too..
I would avoid getting one of the chinese lathes or mills. They will eat up a lot of your time to get them to achieve any acceptable results and they still wont ever be 100%... Look around for older mills/lathes of european origin. You might still have to spend time with them, but in the end you will have a much better machine, much more capable, much more dependable...
I feel for what you are trying to do. Its more or less what I am thinking of pursuing myself. Quit my job a few months ago and been contemplating on what to do next. I got a lot of machinery (boxford lathe, harrison mill, kemppi welders, saws etc, more or less what you are missing LOL) and plenty of ideas, I just have not go the capital to do the next move atm.. I wish you were closer to me, I am sure we'd have a lot of fun on many projects!
Keep the quality video coming. It really is entertaining and interesting stuff, I always learn something new!
Thank you!
Chris
Hold on to your goals! They are worth it fighting, you will get what you want 💪 Just awesome!
China mills and lathes are not all that good for the average user. BUT...for thinkerers like you they work out just fine. A little improvement here and there and som mods they work wonders 🤙
Yeah. Improvements can defo be made. Some manufacturers are better than other too it appears.
Alex doesn't strike me as someone who goes off half cocked. He'll no doubt do his research and due diligence before he stumps up the funds.
Injection? ! maybe would be very cool
Megasquirt certainly has the computation power needed, it computes up to 20 thousand RPM!
I'll leave the cigar but Floyd and a great Whisky, YES!
Just don't get stuck in a Floyd-Hole!
are you suggesting it's not obligatory to be smoking a cigar while listening to Have a Cigar?
@@gramursowanfaborden5820 the whisky is obligatorily, the cigar is optional. ;)
Holy shieet! Cant wait to see it done! Love your videos, Greetings from Spain :)
The legend has it that as he rose from his chair to pick from his Pink Floyd record collection, he could not help but choose Pipers at the gates of dawn...
I've got a bike, you can ride it if you like
It's got a basket, a bell that rings
And things to make it look good
BN harder than CS. Looks like you got only nikel on plating. As i wrote in early videos - you use big flow rate (and washout BN before it will covered by nikel) or/and less likely what little surfactant used in solution.
Check plating with microscope. On good nicasil you will see CS blotches in nikel, so use that for quality test or you coating.
P.S. Also i found video from asian(?) litle factory and i hope it will help - ua-cam.com/video/TZ5r_Xd9a2U/v-deo.html
Thanks! I'll get a microscope.
My I offer some advice? I have built 14 small bore 2-stroke engines that have broken records at El Marige Dry Lake. Understand, peak horsepower is important to an extent but you have to understand how the cylinder fills when pulling up to your best power range. If you can't make torque low in the rpm range you will never pull the tall gear you will be running. Ergo, you will continually be slipping the clutch just to get up to speed. With one mile to work within the lack of torque will kill your attempt even if the motor makes big numbers on the dyno. For me it came to cylinder fill, squish velocity and a lot of pipe testing... in basic terms. Cheers.
Thanks! This is where the variator shines - the engine can be held at peak power rpm all the time.
Look at the combined mill/lathes if you haven't. Grizzly g4015 is on my wish list
bad idea people get rid of them almost immediatly once they realize the compromises makes them pretty useless
Oh, and at stroke 39,7mm you are still under 50cc at a bore of 40,044mm
Though small, the slightly longer stroke will be an advantage unless you plan on aiming for absurdly high rpm.
@NoNoNoNii
I am well aware of the goal. It's the name of the video series.
Allow me to elaborate. 39,7mm will still be within the 50cc class up to the mentioned bore, meaning there should be no reason to aim for a shorter stroke.
My attempt to imply that piston speed will likely not reach a point where a 0,5mm shorter stroke will be advantageous over the increase in displacement was poorly thought through.
Unless there is a wish to "future-proof" the setup to allow for a bigger bore with 39,2mm stroke I see no need for it. Especially with new castings in the future.
Have you had any contact with teams going for the 50cc motorcycle land speed record? I'm sure that your work would be of interest to them. Many of them are "shed" teams that depend on innovation and design to make up for what they lack in resources. Thanks.
I'm currently on one of those teams myself!
And again.....awesome video. Really like the style of your videos. Can't wait to see it running👌
12cl Lagavulin a Bolívar robusto and have a cigar whith Pink Floyd Sum's this Up so far!
Cheers from northern Sweden 🍻
I really hope it will work
Fortsätt med att göra sånt här det är najs🔥👌
hello de France, toujours au top bro!! j'ai envie de le voir fonctionné toute suite , HAAAAAAA!!!!!! je ne suis pas patient quand c'est du contenu plus que correct, peace
Perche non parli italiano... percheee
Crazy is awesome.
You mentioned your surprised your at this stage already, had 100% faith in you new you would be here.
Amazingly every time a small problem pops up you know exactly what to do and that teaches us my friend.
Awesome subed with Mark A also a clever wizard love he's videos and fantastic he's onboard with piston also if I'm right Jess with head.
A cylinder for my mint nsr150sp would be gold maybe 200cc.
Has any nikelsil platting company tried graphite in the mix .
I know it's soft in pure form but in same family as diamond and 5 x heat tranfer of Aluminum just a thought.
Purchase a Tshirt soon also can't wait for next vid. CHEERS.
@Eddie Hitler thanks i hope your right cos very handy stuff in hot and friction areas.
Cheers mate.
maybe for honing it is easier to use a colum drill? to keep it straight and maybe modifying it so it goes up and down automatic? nice project :) great serie well done mate keep it going.
Excellent video I love the breakdown. But I'm dying to see this thing light up. Also please brother better gloves always. The right chemicals take only 26 seconds to absorb into your body
Hey after all this hard work I have seen you have done.. and your still gonna tell me its not worth it to just machine this out of billet? Ever consider pressing in a sleeve instead of coating? love that you are dedicated, but seems like you are committed to cast/coated and that is fine, but for a prototype I would suggest start with a machined billet cylinder with a pressed steel sleeve (for a prototype)..but keep up your journey.. i love your vids :)
He literally explained why he doesn't want to use a liner in this video.
@@ferrumignis yeah i jumped the gun lol didnt watch till end lol
I say strip your test cylinder (using the definitely not nitric acid) and try it with the silicon carbide powder to see how it goes.
Put this cylinder on Tomos moped
Nice work man thanks for taking us on this journey your hard work is very much appreciated must be a terrible load the film and try to invent
Strip and re-line your practice cylinder and see what hardness it is. If it's harder do it to your good cylinder. So happy for you my friend. Things are moving fast
When using Hardness test files, it's better to start with the black (RC50) file as it's the hardest. You don't need to use them as a traditional file but just lightly push one direction with slight downward pressure. If the file teeth "grab" the surface then proceed to the next lower hardness file and progress until the file slides easily across the work. This method doesn't damage the file teeth and preserves the integrity of the kit.
Wife, what the hell are you cooking?? 2stroke dude: iam cooking horses, go away :)
Pink Floyd would be a great background music for parts of your videos! But in general I think it's great that you concentrate on doing a good job and not on secondary things like music. Please more of the same!
Land speed racing engines?
Did order the camshaft t-shirt the moment i saw it.
hmmm, just thoughts why you didnt try to do a direct double injection with variable velocity stack - that would be kinda interesting ..... better timing electric adjustable injection better cooling of the cylinder and probably you are able to install a water injection to run that thing on full throttle full time without heat problems and with that thickness of the cylinder bore you can run up a much higher compression rate than other cylinders - or if not high compression rate than you are able to get pretty damn high rev band when the stroke and the middle piston speed isnt that high.
I would have a go with the cylinder you have and maybe make another cylinder for the boron nitrite coating. If you get both cylinders to 39.9 bore size potentially the piston head etc could be shared
Well my friend
i appreciate very much all videos and your job and skills!
But, I was thinking about the exhaust port and the rings:
Will not break there??
Do not test the work bro
First I would get ahold of an iron sleeve and test that against your cylnder coating to compare hardness. If you are above the hardness you should be fine, the coating will wear down and then you can improve your formula next time you need to apply a new nickasil coating, this would allow you to progress onto the other aspects of your build. But that is me and I am not you, much has to be thought about in order to achieve sucess and failure, they go hand in hand, you either suceed or you fail, this failure mode drives us to be better than before, truly one of the best build series all around, your determination is the best part of it, i am sure tho that I am all ready for the next step. Peace from the east, only beacause it rhymes and the fact that if you go far enough east you will arrive at my country Canada lol
Thanks! I did the file test on the iame cylinder liner and it was definitely softer.
First thank you for acknowledging my comment. I am a long time two stroke addict my first two stroke was a moped and graduated quickly to bigger and better bikes so you are a real brother in my mind. Biggest I rode was. Suzuki 750 water buffalo, scariest was a 400 can am dirt bike lol. Sorry got off track but seeing someone as addicted as myself is making this old man giddy as fuck. I am wondering was the cylnder you tested a nikasil coated iron sleeve or nikasil over aluminium like yours? A plain iron sleeve is what iwas refering to so if yours was harder than that then it would last for some good testing before replating was required. But due to my age I may be totally fucked brain department for saying this lmao. Also blessings to you and your family especially your wife if those are her pots amd pans you are using have a great day everyday love the content.
The wen minilathe is good, as well as the blue and white mini lathe. Just prepare to do some fabricating on small things to get it to run smoothly. I own both and they run fine once u dial them in.
RE Plating softness.. SEND IT!
Good stuff. Thanks for the update. I am thinking it will be good to test the linning you have already created under actual running conditions just so you can start comparison data on boron nitride/silicon carbide mixing towards your balance of heat transfer verses hardness. Scratching the surface using a hardness testing kit without the lubricants and temperatures of actual running conditions seems like a poor data return considering how much effort you made to create the coating. Very exciting to watch you develope. Thanks again. I look forward to next update.
I would hate to see you wreck anything however it would be very satisfying to see your plating in action ...what I'm saying is you worked really hard on that plating and I am interested in seeing how well it works but also don't want that special piston destroyed so I guess I myself am in the air with it...just touching on your testing idea, I think it's a great hobby and very interesting. I am staying subscribed until you shut the channel down haha. You are awesome man!
congratulation for your achivement. I have a chinese late and a chinese mill too and they work perfectly fine after some twiking.
+1
Trying to get like...50(edit: more than) hp from a small engine!? Excited!!
44hp out of a 125cc and 72hp out of a 250cc single both on c12 over 23 years ago..lol..
I'm aiming for 30+hp out of 50cc here...
@@2STROKESTUFFING
I can't remember what we got out of our 80cc and we never dynoed a 60cc.
I would think your best chance would be with a rotary valve. Can't remember if that's what you were using or not? Think so. If you get close....you can always add another coil and spark plug and tip the can? Lol..a little nitromethane goes a long way .If you haven't I would look for a piston with the highest pin height possible as well. Don't be afraid to over carb it as well. Your gonna be hanging on the big end to get that compressor to pump as efficiently as possible..some good retard on your ignition curve to match up to high rpm..You know you can remove the factory pin for the ring and install a new one where you would like the end gap to be...if you know all of this sorry for repeat. Run wire for your head gasket too. At that level.
Proprietary pipe. I know a silencer is worth 1.5hp on a 44hp cr125. The way you pack the silencer and core style is worth 3/4 h.p. it's amazing how many tiny things come together to make a true fire breather. I run a 40.25mm carb on my 250 because we weren't into offset boring back then. Wish we saw that potential. I am planning to upsize on my next build.
I have built over 1000 2strokes from bare cases with all kinds of builds from stock to prototype. Haven't been on the scene for over 15 years? Took a bored 450 with shoe horned valves and prototype ignition on different fuel (all was illegal back then at world superkart challenge) to beat a built cr250..
Those are all rear wheel numbers. So if you don't have a gearbox or drivetrain you can measure higher as well..water brake?
Good job man, but you forgot some links!
Thanks, I'll fix it!
Cigar, Lagvulin, Pink Floyd - does it get any better than that? Yeah only slightly :)
Getting close! Good to see you’re getting some key support also. The gauges are nice but an old fashioned degree wheel mounted to the crank and piston stop in the spark plug hole is actually more accurate and simpler to determine TDC and other port timing events.
Please run it you can only watch so much casting and plating 🙄
Loving this STUFF!!
Just try it.
If the other coating is stronger why not just go ahead and do it. Considering you already have the materials to do so and it's just more content for your channel.
Make a 4 cylinder out of it !!!
V12 !
YES YES YES.. Closer every week..cannot wait.....
enjoy your cigar and pink floyd, you deserve it :D
wonder which pink floyd it will be... perhaps he tried woods rum thats what I have right now...
23 years ago, my two stroke made 0.875HP per CC no turbo or supercharging. 50cc should be about 44HP to be equal.
I'm guessing that's based on manufacturer claims for a tiny methanol/nitro engine?
@@2STROKESTUFFING That was my worlds winning 3.5cc (0.21c.i.) 4HP nitro motor for 1/8th scale rc car, 7 port motor built by ron perris, tested on a dyno. It rev'ed top just over 60,000 rpm. If you like rpm, check out my 3.8 million rpm video ua-cam.com/video/ZQE05T-3680/v-deo.html
👍 Not sure I can beat that, even on Nitro...
I had to do it sorry, likes were at 69 but i couldn't just not leave a like, you are at 70 now. Sorry
Run it
I see all the work to get this done and its alot! Makes me wonder how the fastest Indian guy did it?
Yes!