Realize that I forgot half of what I was going to explain in this vid. The pipe, the piston, port timing, simulation software ++ Have to make a script or something. Anyways, already started on the next vid, different carb, see if I can find some softer reeds, maybe stuffing the case for testing ++
It was probably running strangely because of the massive crankcase volume. If you get an expansion chamber on there, it will probably run a lot better. Edit: lol I didn't realize you mentioned stuffing. That could definitely help with testing the weird piston setup.
Good idea stuffing the case for now. The large case volume and low primary compression will make it hard to start, have you considered running a longer intake on the primary carb to get a bit of ram effect to help with starting and low rpm running?
Wow this thing is LIT! I really would love to know all what is making this 2 smoker so trick nickel cylinder yes i know some older Suzuki had plated cylinders but very cool man
@Josh Frank Idk, it's rewarding having done things like that yourself and I think that's why he has done it that way. But it's also clear that it is only a prototype engine so I don't think a professional coating would be necessary until he fine tunes the design.
I've been following since the beginning i feel happy for him. Imagine how cool it would feel to have a running engine in your hand that started as a chunk of metal . I feel great when i rebuild a carb or a top end lol
Same 4 me. Was playing Skyrim and needed to see a video for something i can't even remember anymore. I see this and immateriel click. Now wish me luck trying to find out what i wanted to watch before this.
13:00 minutes, NO you didnt make me more confused, I understood it all and was hanging on your every word! been following you from the start, so glad to see it get to this point, KEEP gooing
Liked immediately, been watching since motorised bicycle build and I've got to say the quality has got better and better with every video you post. I hope to see you break 100mph at Bonneville. Just thought I'd add I built a motorised bicycle and managed to break 70kph with a downhill boost. :)
You know your stuff Sir. Thank you for sharing this video. I enjoyed it very much. The awesome two stroke in all its glory. The power uptake on these things are amazing. I love how they sound, how they run and how they are put together. That's probably why I have been bisecting and examining them myself for the last 25 years. Thanks for sharing this video! Craig
Your like a mad scientist!! creating a beast of a baby 2 stroke motor. I have followed you for a few years now and it keeps getting a little bit better every time. Keep up the awesome work.
SHE LIVES! 👏 Congratulations big man. Also love how you simplify everything near the end - no doubt this vid is going to see a lot of new viewers, I hope you get as many addicted as I am
I started watching your vids from the start and studying at the same time I’ve learnt I believe all there is to no my current engine revs just over 16000 rpm and has 20.8 bhp and does 88 mph and is 70cc more power than a kx 80 at 18 bhp. Thanks dude you know it all. I only wish that I had this knowledge when I had my rgv 250 wow what power I could of got from that.
Been following this journey and this channel for a long time. I hope people appreciate how badass this is. This takes so much time, energy, and dedication to see through, amazing.
the first time i saw your videos i came across you machining a crank case. That clean cut informative video all on its own earned a subscription. that was about 2 years ago if i remember correctly this is the first time since , your videos have been on my suggested feed. good work brother. i cant wait to see the results
Way back when I was playing with 50cc 2T we usually threw out the stock ring & machined our own out of meenite (don't know how to spell it but it sounds like that) it has better wear properties & would hold its shape better on lean runs. That was back in the '70's though so there's probably better metals to use now. At an absolute push, you could machine one from cast iron. That's what some engines from the 50's used as rings.
Hi, I think he could use cast iron. The reason is it doesn't have to be super exotic, only dissimilar from the cylinder material. Also cast iron is easy to work with. Now that I think about the causes it wear... I would consider three things, pre-tention of the ring, finish of cylinder and lubrication. Then I would do a test to see if the ring continues to wear or if it only lost material while it just set in place. Then If it stays the same, take in consideration the initial wear when gaping the ring. Congrats for your first start!
Great job man Build a complete engine I hope you get it run well You'r almost there i think You must have a lot of patience for doing this all Good luck
Kind of how the SR71 engines work on after-burner. The momentum of turbine exhaust pulls extra air from around the housing. It's more air than the amount going through the engine turbines.
Lovely, i bet u will break hp records and make a huge gap of more power then the current guy holding the record of most powerfull 2 stroke 50cc engine, im stoked to see it run when it will be at its best! Great stuff dude!! I never missed a engine video of your project since the beginning
Congratulations!!! I know you still have much to do but it's awesome to see it fire and hear it come to life!!! Even for a few seconds.... You came a long way.... Great Job Bro!!!✌🇺🇸✌
IT'S ALIVE!!!! YEAH YEAH YEAH YEAH YEEEEAAAHHHHH BUDDY!!!! IM SO DAMN GLAD TO READ THAT TITLE AND START WATCHING THIS LITTLE BABY BEAST OF A SINGLE CYLINDER BLOW SMOKE!!!!
Glad to see it working, progress man! Btw on a pumper carb, it can help starting when you choke it with your hand. You kinda need three hands in your case to operate the throttle.
I have never commented on anything Mr 2S Stuffing, as with others been watching for ages and great to see these vids. I hope your proud you should be and with the limited knowledge I have in this field your future direction looks to have huge potential. You rock bruva and I look forward to further posts and progress.
Every Nikasil cylinder I’ve ever worked with - from Porsche 911 to Honda CR500, I’ve sent out to a machine shop with Sunnen CNC honing equipment and diamond cutting stones. Where we could, we used torque plates.
2STROKE STUFFING pro tip is to check your sellettra ignition with a timing light... as a moped mechanic i found out that the ignitionpoint of most aftermarket ignitions dont got the right markings on flywheel and stator and can vary ignitionpoint upp to several MM before and after the markings.
Härligt Alex! 😃👌 So much, if not all, of what I have learned (and forgotten) the last 5-6 years about 2 strokes is included in this engine...and then some. So pleased to see a guy in a small garage pointing out details most “big names” still get wrong. I think it sounds angry and with potential. Keep posting. 👍
As a suggestion the cut should be in a diagonal to extend the surface area of the bond, they actually sell kits for this with a cut template but I use a razor blade and cyano whenever I don't have the right oring, good call.
What about a one piece ring. You would need to preheat the engine fully to fit the ring and start the engine. Ring would be dished slightly so gas pressure expands the ring when combustion is taking place.
about the hardchrome coating in the cylinder , sumting i seen done on kreidler breitwand cilinders that is grooved beyond repair they bored out the cilinder and got a good cilinder from a older forced aircooled kreidler , these have realy small ports and not too big ribs , they chuck that cilinder in a lathe and wittle it down untill just the cilinder is left with about 4mm wall thickness , then they open up the ports to fit the breitwand and press that cilinder in the breitwand cilinder , mahle cilinders are about the best cilinders when it comes to the hardchrome coating
in my karting days facing the motoplat ignition the motor turned anticlockwise i guess you have this right? A second stage throttle plate on the injector port may not be a sin , even a tuning advantage you have been thru alot of carbs, i like easy starts and smooth running reciprocation , keep at it .
I think the biggest problem there is the cylinder. Because transfers have a very large cubic volume. The cubication of transfers cannot be to much greater than the total cc. All this together with a very large crankcase causes little fuel air mixture to pass into the combustion chamber. This leads to the piston having to pump more to send the correct amount for a good compression. Try to block the 2 big transfers and leave only the small ones. Best regards, continues with the development of the project.
When i watch this guys videos i feel like im no longer themad ctazy man in the basement building all kinda of crazy stuff, this guy garage surpases all my tools by a million and he can probably build anything.
I like your plan for your forthcoming expansion chamber, especially the no moving parts part. I remember when motocrossers came out with movable exhaust ports. I hated that. I wonder if you made your ring out of A-2 toolsteel, unheattreated, would it heattreat itself as it ran? I’m sure it’d be much better to wear out a ring experimenting than your cylinder. I also remember Honda Corp. chroming their cylinder bores. It seemed to work well. Anyway, good job!
did you check the squish?chamber volume ?compression ratio?the ring is the easiest to check but has less effect than the rest. the most important in the ring clearance is to take into account the thermal expansion so it doesn't lock.
I have long wanted a Quattrini small frame racing engine for a Vespa which are insanely powerful 2 strokes and a darling of the German scooter scene. Their cylinders look somewhat like yours on the water cooled ones. I have in my large frame MK1 Vespa T5, an LML Xpress engine bought direct from India which has a power output equalling the Vespa P200 engine but also some grunt as it was designed to propel LML scooter and 2 adults and children around the streets of India and is an awesome hillclimber. Its not just the reed valve and slightly bigger carb that aids the power but LML's "half brick" heavy duty coil and a modernised CDi unit that creates a much brighter spark than a standard Ducati etc from Vespa's. OK I thrash out at 75mph but I get there bloody quick and I could by changing teeth on primary's give me quicker accel/less top end or slow accel/higher top end which is the beauty of them engines :)
This would make a HELL of a hot saw engine! (modified competition chainsaw, for those who live in hot places) I love the DeLaval nozzle principle of the exhaust design.
Be careful with carbide in your cylinder coating. It is very hard and granular. If the surface finishing is not perfect it will tear your piston to shreds. Also Teflon coat the piston skirt to reduce friction. It doesn’t last long but it reduces friction a lot.
If I don´t remember wrong .the exhaust time of our racing engines were 135 dgres(19500revs). Initial for testing you ought too go for 120. don´t make the exhaust too wide .lost of vehlocity. Intake/exhaust area usually is around" 1/2." ex. 19mm carburatur should have an exahaust area of 567 mm2. Exhaust port (12) x 47 mm. 12 is the hight and should be taking into notice into port timing degrees. Area should remain the same. Change the whidth. Plkease dont start experiment with ports until yuo find out port area and port timing. P.S love your work. Heja Norge.
I'm new to seeing this kind of design. Awesome work man. I'm used to dirt bikes, so my question is.... Would a 2 stroke of that size benefit from an expansion chamber on the exhaust or does that not have an effect with your style of airflow and injection?
Realize that I forgot half of what I was going to explain in this vid. The pipe, the piston, port timing, simulation software ++ Have to make a script or something. Anyways, already started on the next vid, different carb, see if I can find some softer reeds, maybe stuffing the case for testing ++
It was probably running strangely because of the massive crankcase volume. If you get an expansion chamber on there, it will probably run a lot better.
Edit: lol I didn't realize you mentioned stuffing. That could definitely help with testing the weird piston setup.
Good idea stuffing the case for now. The large case volume and low primary compression will make it hard to start, have you considered running a longer intake on the primary carb to get a bit of ram effect to help with starting and low rpm running?
Finally !!! next i hope you get it to run properly and get some proper rings !!! want to hear power!
Wow this thing is LIT! I really would love to know all what is making this 2 smoker so trick nickel cylinder yes i know some older Suzuki had plated cylinders but very cool man
Maybe for further vids you should have a script up with notes, so you can remember it all :)
Been waiting almost two years for this moment! Can't believe how fast it's gone!
Same
@Josh Frank Idk, it's rewarding having done things like that yourself and I think that's why he has done it that way. But it's also clear that it is only a prototype engine so I don't think a professional coating would be necessary until he fine tunes the design.
I've been following since the beginning i feel happy for him. Imagine how cool it would feel to have a running engine in your hand that started as a chunk of metal . I feel great when i rebuild a carb or a top end lol
@@edgar1528 Me tooo
It's got a similar sound to a yamaha rx100 cant wait to see it built & up & running
It took me exactly 0,0001s to click on this video.
😀
Too big turbo, too much lag :)
Same 4 me. Was playing Skyrim and needed to see a video for something i can't even remember anymore. I see this and immateriel click. Now wish me luck trying to find out what i wanted to watch before this.
I have just mildly tune a 1963 lambretta, its going to fly!.
Lol, I did it in 0,000002 sec boi
U late
glad you're back with some 2-stroke vids! gtrs from the Netherlands
Blijkbaar zijn Nederlanders best geïnteresseerd in motorblokjes😂
Hahah vlg zijn der wel meer nederlanders
@@wederden2759 ja😂
Zekrt
Jazeker
13:00 minutes, NO you didnt make me more confused, I understood it all and was hanging on your every word! been following you from the start, so glad to see it get to this point, KEEP gooing
I have never switched youtube videos this fast in my life.
I was watching Dust channel when this notification popped up. forgot what I was watching now bcs I clicked on it so fast haha
Liked immediately, been watching since motorised bicycle build and I've got to say the quality has got better and better with every video you post. I hope to see you break 100mph at Bonneville.
Just thought I'd add I built a motorised bicycle and managed to break 70kph with a downhill boost. :)
Congratulations, I'm hoping to get a motorised bike in the future!
That's amazing!
I have been following your project from the beginning, and I'm so excited that it actually works.
Congrats man, keep working this way!
You know your stuff Sir. Thank you for sharing this video. I enjoyed it very much. The awesome two stroke in all its glory. The power uptake on these things are amazing. I love how they sound, how they run and how they are put together. That's probably why I have been bisecting and examining them myself for the last 25 years. Thanks for sharing this video! Craig
Your like a mad scientist!! creating a beast of a baby 2 stroke motor. I have followed you for a few years now and it keeps getting a little bit better every time. Keep up the awesome work.
love this serie so stoked you are back 100% greets from the netherlands
Thanks for the update! I really love seeing people go all in on engineering stuff to make it better
well done alex. good luck from australia. im looking forward to your 50cc 2 stroke breaking a land speed record :-)
I have been following this project since last year. Glad that it alive now.
SHE LIVES! 👏 Congratulations big man.
Also love how you simplify everything near the end - no doubt this vid is going to see a lot of new viewers, I hope you get as many addicted as I am
I started watching your vids from the start and studying at the same time I’ve learnt I believe all there is to no my current engine revs just over 16000 rpm and has 20.8 bhp and does 88 mph and is 70cc more power than a kx 80 at 18 bhp. Thanks dude you know it all. I only wish that I had this knowledge when I had my rgv 250 wow what power I could of got from that.
Been following this journey and this channel for a long time. I hope people appreciate how badass this is. This takes so much time, energy, and dedication to see through, amazing.
That is badass. It's about time someone advanced 2 strokes. Keep up the good work.
Such a pleasure to see you solve the puzzles of your design. Thanks for taking us along.
the first time i saw your videos i came across you machining a crank case. That clean cut informative video all on its own earned a subscription. that was about 2 years ago if i remember correctly this is the first time since , your videos have been on my suggested feed. good work brother. i cant wait to see the results
Here's a suggestion : use molybednum for piston ring's friction side
Piston to ring side is fine to use current metal
Yep. Or nitride them maybe?
These guys here have some info on various options
www.jepistons.com/blog/piston-ring-materials-explained
Way back when I was playing with 50cc 2T we usually threw out the stock ring & machined our own out of meenite (don't know how to spell it but it sounds like that) it has better wear properties & would hold its shape better on lean runs. That was back in the '70's though so there's probably better metals to use now. At an absolute push, you could machine one from cast iron. That's what some engines from the 50's used as rings.
Hi, I think he could use cast iron. The reason is it doesn't have to be super exotic, only dissimilar from the cylinder material. Also cast iron is easy to work with.
Now that I think about the causes it wear... I would consider three things, pre-tention of the ring, finish of cylinder and lubrication. Then I would do a test to see if the ring continues to wear or if it only lost material while it just set in place. Then If it stays the same, take in consideration the initial wear when gaping the ring. Congrats for your first start!
@@olivierroy1301 cast iron has graphite crystals in it, too
What exactly is molybdenum and what does it normally for I know I'm lost sorry
Ive been following this series for 2 years, can’t believe it’s finally done. From paper to reality, I salute you man, congrats.
Great job man
Build a complete engine
I hope you get it run well
You'r almost there i think
You must have a lot of patience for doing this all
Good luck
Amazing been working a while with 2stroke and you look just like an normal dude but you're an genius
So in other words you have just made a 2 stroke pulsejet?
That's not far from the truth at all. Just happens to be a piston in the combustion chamber stealing some of the energy.
@@2STROKESTUFFING that slight bit of energy taken should hopefully stop it sounding like a giant fart though!
Thats an ugly thief-piston! :)
@@2STROKESTUFFING hmm. Is a Ram air intake permitted? You could get quite a bit of extra air in at speed.
Kind of how the SR71 engines work on after-burner. The momentum of turbine exhaust pulls extra air from around the housing. It's more air than the amount going through the engine turbines.
It’s good to see you excited about this engine again. Best to hop to it before the competition steels your ideas though! Nice job, your very smart.
Lovely, i bet u will break hp records and make a huge gap of more power then the current guy holding the record of most powerfull 2 stroke 50cc engine, im stoked to see it run when it will be at its best! Great stuff dude!! I never missed a engine video of your project since the beginning
When all most all of your subscribers watch your video within the day it came out. You know your on to something. Keep it up. Love from New Zealand.
That's one massive milestone! Really amazing what ingenuity and relentless work can achieve...
Congratulations on getting this far. What a really great project.
Can't wait for the next vid, sleeve and ring sounds good, then you can be certain that's not going to be a problem
Excellent! I am so happy to see the progress you are making. Keep it up and stay safe!
Congratulations!!! I know you still have much to do but it's awesome to see it fire and hear it come to life!!! Even for a few seconds.... You came a long way.... Great Job Bro!!!✌🇺🇸✌
Love watching your videos! They are so interesting. Keep going!
AMAzing absolutely brilliant well done 👍🏽 waited patiently for this moment
Great to see you back on this project again. For I while i was wondering if we would see any more.
IT'S ALIVE!!!! YEAH YEAH YEAH YEAH YEEEEAAAHHHHH BUDDY!!!! IM SO DAMN GLAD TO READ THAT TITLE AND START WATCHING THIS LITTLE BABY BEAST OF A SINGLE CYLINDER BLOW SMOKE!!!!
Got tears in my eyes when the monster started waking up here!! Amazing job. Gratulerer.
Randomly saw the last video in my suggestions and now I might get to see it run, awesome.
Every day is a school day with you. Your my number 1 Tuber.
Thanks man!
You are one SMART feller...can't wait to here it blasting across the track...keep up the awesome vids...
This is a great milestone! Its only upwards from here on out! Keep at it!
It lives! Damn, this is so inspiring! You really made my day, I have my own projects that are grinding on, but perseverance pays! Congrats!
You're really taking this technology up a notch. Good on you bro, you're a genius and an asset to humanity
Wow this is so exciting to see this come together! Yep, harder ring needed for sure! It sounded good even though it was running weird!
Glad to see it working, progress man! Btw on a pumper carb, it can help starting when you choke it with your hand. You kinda need three hands in your case to operate the throttle.
Fascinating engine design!
I have never commented on anything Mr 2S Stuffing, as with others been watching for ages and great to see these vids. I hope your proud you should be and with the limited knowledge I have in this field your future direction looks to have huge potential. You rock bruva and I look forward to further posts and progress.
Great work, technik and ideas and workscraft. Greatings from Germany
I now know what I’m doing for the next 17 minutes.
The moment of life is at 5:55
Thanks
Great to see these videos once again
Every Nikasil cylinder I’ve ever worked with - from Porsche 911 to Honda CR500, I’ve sent out to a machine shop with Sunnen CNC honing equipment and diamond cutting stones. Where we could, we used torque plates.
mad props for designing your own engine from scratch!
Love your channel..im pure 2stroke lover from malaysia..wish u always good sir
Thanks man!
IT ALIVE :O Love your videos :) i wish i had the skills that you have =) keep the good work up
Your videos are awesome, it takes a lot of time to do the machine work your doing + set up video production for TH-cam. Props sir props
2STROKE STUFFING pro tip is to check your sellettra ignition with a timing light... as a moped mechanic i found out that the ignitionpoint of most aftermarket ignitions dont got the right markings on flywheel and stator and can vary ignitionpoint upp to several MM before and after the markings.
Thanks for the heads up, I'll do that!
So cool! So nice to find such an interesting channel! Amazing work!
Härligt Alex! 😃👌
So much, if not all, of what I have learned (and forgotten) the last 5-6 years about 2 strokes is included in this engine...and then some.
So pleased to see a guy in a small garage pointing out details most “big names” still get wrong.
I think it sounds angry and with potential. Keep posting. 👍
Congratulations on finally getting the motor going. Even without getting to your final desired result yet you deserve to be so proud.
So stoked to see it fire up!
Whooo!!
CONGRATULATIONS!
You can do it!💪
Cheers from Northern Sweden 🍻
Hi
Use cyanoacrylate glue to connect rubber seals and o-rings et. for head
As a suggestion the cut should be in a diagonal to extend the surface area of the bond, they actually sell kits for this with a cut template but I use a razor blade and cyano whenever I don't have the right oring, good call.
Keep going buddy I am absolutely loving this series on your quest.
What about a one piece ring. You would need to preheat the engine fully to fit the ring and start the engine. Ring would be dished slightly so gas pressure expands the ring when combustion is taking place.
I was thinking about removing the issue of the ring catching on the port edges not sealing. At 20k rpm ring seal end gap is not relevant
did you see that flames, oh my god it looks dope, i was waiting for this video for ages
Have you ever considered making teaching focused videos, your knowledge always impresses me
about the hardchrome coating in the cylinder , sumting i seen done on kreidler breitwand cilinders that is grooved beyond repair
they bored out the cilinder and got a good cilinder from a older forced aircooled kreidler , these have realy small ports and not too big ribs , they chuck that cilinder in a lathe and wittle it down untill just the cilinder is left with about 4mm wall thickness , then they open up the ports to fit the breitwand and press that cilinder in the breitwand cilinder , mahle cilinders are about the best cilinders when it comes to the hardchrome coating
That's a good tip, but I really want it plated after chamfers etc.
"This is a resonance system not a pump"
So this is more like a pulsejet than a two stroke. Brilliant!
That's some precision machining there
in my karting days facing the motoplat ignition the motor turned anticlockwise i guess you have this right? A second stage throttle plate on the injector port may not be a sin , even a tuning advantage you have been thru alot of carbs, i like easy starts and smooth running reciprocation , keep at it .
👍 Checked with a light just to be sure.
I really enjoy these regular uploads
When the pipe starts shooting flames at 5:48 dis gon b gud
I absolutely loved seeing it run... now I'm excited to see where it goes from here!
Congratulations, what a huge milestone!
Well after a long time waiting and watching many of your videos the beast is finaly woken, grets from sweden, and that case föow design is brutal😍
Alex sir you are a genius
WAY TO GO MAN!! it sounds fucking incredible❤❤
I think the biggest problem there is the cylinder. Because transfers have a very large cubic volume. The cubication of transfers cannot be to much greater than the total cc. All this together with a very large crankcase causes little fuel air mixture to pass into the combustion chamber. This leads to the piston having to pump more to send the correct amount for a good compression. Try to block the 2 big transfers and leave only the small ones.
Best regards, continues with the development of the project.
👍 Thanks! Might stuff the case for initial testing, and blocking transfers is a good idea.
When i watch this guys videos i feel like im no longer themad ctazy man in the basement building all kinda of crazy stuff, this guy garage surpases all my tools by a million and he can probably build anything.
Congratulations. Looking forward to see it at full noise.
Looks amazing m8.
I like your plan for your forthcoming expansion chamber, especially the no moving parts part. I remember when motocrossers came out with movable exhaust ports. I hated that. I wonder if you made your ring out of A-2 toolsteel, unheattreated, would it heattreat itself as it ran? I’m sure it’d be much better to wear out a ring experimenting than your cylinder. I also remember Honda Corp. chroming their cylinder bores. It seemed to work well. Anyway, good job!
Nice work lad.
did you check the squish?chamber volume ?compression ratio?the ring is the easiest to check but has less effect than the rest. the most important in the ring clearance is to take into account the thermal expansion so it doesn't lock.
I have long wanted a Quattrini small frame racing engine for a Vespa which are insanely powerful 2 strokes and a darling of the German scooter scene. Their cylinders look somewhat like yours on the water cooled ones. I have in my large frame MK1 Vespa T5, an LML Xpress engine bought direct from India which has a power output equalling the Vespa P200 engine but also some grunt as it was designed to propel LML scooter and 2 adults and children around the streets of India and is an awesome hillclimber. Its not just the reed valve and slightly bigger carb that aids the power but LML's "half brick" heavy duty coil and a modernised CDi unit that creates a much brighter spark than a standard Ducati etc from Vespa's. OK I thrash out at 75mph but I get there bloody quick and I could by changing teeth on primary's give me quicker accel/less top end or slow accel/higher top end which is the beauty of them engines :)
Skål!🍻 Snyggt jobbat! Mycket underhållande och fet kvalité👊❤
I've been watching so long, I was super excited to hear to fire up (even if you indicate its running funny) Grats on its' first fire balls!
Nice mate, good to see it finally running good!
This would make a HELL of a hot saw engine! (modified competition chainsaw, for those who live in hot places) I love the DeLaval nozzle principle of the exhaust design.
Great job bloke! Keep it coming!
This is still crazy
Sounds like you have it all figured out, just have to go to Bonneville and pick up the trophy now.
Lots of figuring out still.
Hello from France! I love your vidéos 😍
You made it happen! #thumbsup
Häftigt, drömmen är att själv bygga ett ”monster”. Bra jobbat
reodor felgen ville vært stolt👌👍
Be careful with carbide in your cylinder coating. It is very hard and granular. If the surface finishing is not perfect it will tear your piston to shreds. Also Teflon coat the piston skirt to reduce friction. It doesn’t last long but it reduces friction a lot.
If I don´t remember wrong .the exhaust time of our racing engines were 135 dgres(19500revs). Initial for testing you ought too go for 120. don´t make the exhaust too wide .lost of vehlocity. Intake/exhaust area usually is around" 1/2." ex. 19mm carburatur should have an exahaust area of 567 mm2. Exhaust port (12) x 47 mm. 12 is the hight and should be taking into notice into port timing degrees. Area should remain the same. Change the whidth. Plkease dont start experiment with ports until yuo find out port area and port timing. P.S love your work. Heja Norge.
Thanks! 135 sounds extremely low?
I'm new to seeing this kind of design. Awesome work man. I'm used to dirt bikes, so my question is.... Would a 2 stroke of that size benefit from an expansion chamber on the exhaust or does that not have an effect with your style of airflow and injection?