Great work! I just can't thank you enough for this!

TOTAL ART .... two strokes for ever ........

I’m really glad you guys are working together on this most powerful 2stroke. Just mint boys. Thanks for sharing

Love it, I was really hoping we would get to see this part of the process as well

Nice going! I really love the way you guys work together to achieve a goal. People were put on Earth not to exploit, but to help each other. Keep it up and all the best! 👍

Wonderful vid...I visited your channel before...thank you for helping Alex ...you are great machiest and great equipment....👍

That exhaust port is GINORMOUS!

super excited when this will be done

Awesome stuff dude,, Can't wait to see this cylinder fitted & running.. That exhaust port pattern looks pretty radical ...👍

Awesome to see this side of the project and glad to see another video from you.

Its always a good idea to think about machining operations when making a pattern. A small amount of material in the right place to allow machining for gripping in a vice etc is invaluable. Pays huge dividends in prototype work. For example a bit of extra material around where you had to pack with your strips. A quick mill before lathe work makes other ops easy. When a component needs setting up again, this is super easy. The added bonus is a more confident, firm and distortion free setup right from the start.

Nice work fella. Just remember that a micrometer loses accuracy when heat from the headstock of the leather gets a chance to transfer into the measuring instrument itself. Good day. Thanks and peace too.

You have now officially partipated to the coolest project on youtube, congrats!

Just a stupid suggestion, those inclusions can be reduced by using a iron liner at the position where you pour. When the molten metal first comes in contact with the mold it can erode the surface taking the mold material in with it into the casting. Damm shame that one came out well.

Thank you for your skills. I've been watching this with excitement.

This man deserves more views and subs! Glad your back!

Lekker bezig daar buurman!

Awesome video, I'll have to check out the rest of your channel dude!

Finally some more quality content!

great work. i was watching a video from kevin cameron and he said british engineers would inject the molds from the bottom up to prevent air pockets or porosity in casting motorcycle cylinders and cases.

Great work brother. Can't wait to see it run.

The music was extremely distracting. Interesting machine work but the music nearly ruins the video.

This is awesome. Great work 👍

Watching you doing the work was really awesome 😁

nice work

Wow. You do incredible work. Great job.

Very nicely done, looks awsome!

Nice tools

Quality work you do. 1st time here might just hang around and learn some stuff cheers mate.

I’m glad I found this channel, love that music 🎶 to!!!

For the second one even if there is damage in the bore you can still high temperature epoxy a sleeve inside, so it's probably not a loss anyway.

Good "stuffing" Shame about that porosity revealing itself after all the work machining it. The casting process is still a work in progress for Alex though and it's no easy thing to master.

I can't wait for ignition! I'm worried the rings will catch on that super wide exhaust port.

Great jobb! 👍

winter in scandinavia is stressful, cant imagine how much you guys have to drink when its completely fucking dark all the time

Wow, great work!

Awesome project.... creating power out of thin air, I will look for the finished product... Now for the music.... I hated it at first, but now its playing in my head... Im worried. I had that problem with my castings, but degassing helped a lot

fantastic stuff! great work, love to follow this project

I see you are wearing your "This Old Tony" T-Shirt. I have one, too. Mine is the cat one. :-) You are awesome! Love Snowmobiles!

great job... looks like a casting fault huh? cant he have them bored out and sleeves put in? hope things work out..

JB Weld would fill those pit holes pretty good.

Great Video!

The stuffer sent me here ;) so you sir got a new subscriber :)

Hope to see the plating process

Awesome work man!

2 Stroke Never Die

I don´t think most people realize the intricate procedures of tuning a twostroke engine. When it comes to fourstroke you just slap a turbo or a compressor on it and you can immediately gain 20-50% horsepower with not to much of a hassle. Two stroke tuning is all about the small details and precision. Flow dynamics and timing is everything. Nice job. Better luck with the next casting though. At least I would not waste nikasil on those. God knows where there could be porosity ready to crack at any time. Perhaps heat shrinking a sleeve inside the bore?

hello my friend I hope some videos about the 4 cylinders 2stroke !!! I'm from Brazil and big fan of yours!!! big hug from Brazil!!!

Just found your channel, nice work!! Please finish the 4 cylinder I'm dying to see it... I've been dreaming of an engine like that for a long time but using cr500 barrels to make a 2 litre... oh yeah, then fit it to a small car... ooooohhh yeah!!!! Anyway, i just want to hear it run...

Perfect Work!!!!! Greetings from Germany

Amazing work makes me want to get into machining

always like lathe action

Wow, awesome 👍👍

So if Alex does make the most powerful 50cc 2 stroke, will he be casting some barrels for your 873cc 4 cylinder 2 stroke.

Nice job.. Great skills

fantastic

thanks for uploading this

Awesome video! I really enjoyed it:)

porosity will crack the cylinder when it got over 100c i would recomend to use a sleave well lubricated

Hi Nice job, you should try CCGT inserts made for turning alu, I remember way back in my youth that Kreidler tuning cylinders had small recesses (maby d=0,25mm and t= 0,10mm) with regular intervals in the Nicasil plating.

fine wrk! ✌😎

Could one not be machined out of a solid billet aluminium ? Until the casting process is conquered. Great work by the way 👍🏻

Great vid

How do you think the piston (ring) will be able to pass the exhaust port? The port is half a cylinder wide, and for now, I am pretty sure the spring will jump into the port. Tell me?

Today, is the first day of the rest of your life.

The small pits are nota problem after nicasil. They will fuction as lubrication holes.

Mooie video ,netjes gedaan man!!

I dont think it will hold together when it runs...... but it is a kewl project !!

Great view of a unique build. How was your bandsaw blade after going through the casting sand?

Hey! I see you are using the same shape inserts as I do for steel (CCMT universal geometry). But I also have CCGT that have geometry for aluminium - much sharper angle. Give them a try, chinese grade works fine - it's like night and day when working on aluminium compared to CCMT. The cut really smooth and you get a real proffesional looking mirror finish.

This is great stuff im telling you!!!

High pressure liquid aluminum injection casting would be just the ticket. It would cost tens of thousands , maybe hundreds of thousands to set up.

"It's a nitrous injection port I mean inspection hole, he told me..."

I would hone those too size when you get them closer

Wow and bugger at the same time; for the pitting. Cast several more I suppose; until they're right huh ?

At this point, it would have been faster and cheaper to have a professional prototyping shop machine a few of these from raw stock.

Nice T shirt!

Nice machining job but alas a total waste of time. The castings are no good, too many imperfections on the bore and welding them all up would distort the casting too much. Take an x-ray or ultra sound of the barrel and you will find it is like swiss cheese through out.

Hell again. The relocation of Piston Pin. please keep in mind im no expert just a Garage fella. I took a small file ground both sides smooth and thickness of file a couple thou smaller than Piston Ring Groove. Then I used edge of file to file away the old Pin. For the new Pin 3 ideas, One drill hole .010 smaller than a expanding roll pin. 2. drill through the top of the piston into the desired ring locate pin position, then drill ream undersized press new pin in and use TIG small tig weld on top pin, now never come out, 3. Yah another one sorry,,when re drill for pin use drill and tap small thread and screw in small bolt then cut off and clear ,I hope maybe give idea. Thank-you I enjoy much you're Videos. I am also 2 stroke Fiddler.

Mycket intressant. Jävligt nyfiken jag också.

Maybe Alex should have you machine a chromium sleeve and press it in, because we all know that the plating isn't going to fill those pits....just a thought, good luck and keep'em comin!

Do you use variable frequency drives or do you have 3-phase in your garage for your lathe and mill?

Rings wont last a heat cycle! Follow up video?

Great work but did not get to the end MUSIC !!! ARRRRR.

Hi. Novice machinist here. Why didn't you use an angle plate to hold the cylinder when flattening the intake flange?

Excelent, disculpa. Que no te puedo escribir en inglés, tengo que armar mi pc,excelentes trabajos!!!!

Why was it designed not to be sleeved?

Good karma on you for helping that other crazy Norwegian , because because because it takes a Village ! Crazy Norwegian Jazz music machine! Oh it's a Lath

Damn neat to cast a cylinder or two! I would think a shrunk in alloy liner would not only make the 'scrap' cylinder usable but would be easier to change port timing and clean up/re-shape transfers if needed? Doesn't the bore need to be 0.25~0.50 larger to allow for the plating build up?

this is aluminum or steel?

Hahahahaha perfect intro. 😂💪

super fin video .... et lille tricks. prøv at bruge sprit (ethanol) som smøre middel til aluminum. virker meget bedre end olie især ved gevind skæring og savning. (båndsav og rundsav

I think he went overboard on the oval exhaust, it might have too much surface area and pull heat out affecting the scavenging and rebound pulse performance. I did read that ktm is using oval header pipes because they maintain better, smoother flow around bends though. Maybe that's the reason?

You got another subscriber. Where r you located?

Take your 3D print to a professional wax caster it will come out A+++++

Never put micrometer on headstock. The heat from headstock will cause the micrometer to give you the wrong measures.

For a second I thought this was a parody wideo

Great video New subscriber Cheers Dave

he mcould bore the one with the fault further and have a cast iron bushing inserted in it , if he uses a pistom with a chrome ring it should act close to the same , dies taka some doing to get the ports in and line everything up before pressing the bushing in a hone it to size

great machining. =) but why the music? i can't hear the machining, sometimes can't even hear what you say, and besides that the music is awful and reminds me of the muppet show. hearing the machining and how the metal cuts is half of the experience of a machining vid in my opinion.