Blown 50cc Two Stroke gets a ROTREX Supercharger!
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- Опубліковано 21 сер 2024
- That C15 unit sure is sweet!
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I’m 68 yrs old and as a Paramotor pilot and a very old school snowmobiler, I am very interested in anything 2 stroke. I’ve been watching your videos for a long time now and enjoy them very much. From Tennessee, keep up the good work.
Kyle o glee. Matt Minyard. Aviator ppg.
@Edward Elizabeth Hitler Kyle o glee. Matt Minyard. Aviator PPG.
Can you imagine if he worked a thundercat
@@pittsjohn57 @wz
I wish you health and wellness 👋
That was very cool of Rotrex, not only by allowing you in, but to also take their time to let you build the supercharger and film it for you. It gave a great insight into the process, and how the company operates.
You can tell that their customer service and support will be second to none, unlike some of the other big names that are only happy to take your money.
This for real.
Of course it is advertisement for them but the way they conducted it especially for a smaller youtuber is really different probably 2strokeStuffering has same fans over there
@@TheLtVoss 2strokestuffering
That Rotrex is a real professional setup. Having a individual press for a individual job and individual situations for each task. Super cool of them to have you in and make your own. Enjoy the channel!
👍 Really well thought through production line.
@@2STROKESTUFFING would you ever consider building either your own blower or a baby transmission
Pretty basic for any production shop
But that was really cool of them great company that for sure
A VERY Impressive shop area there!!
As a Dane I'd say your trip sounds like an succes. Went to Denmark, Met the most Danish non Danish person ever, got hammered, and got a (free?) Rotrex supercharger to cure those hangovers... Welcome to Denmark!
Let's not talk about the stolen things thou...
Finders keepers
I bet it was some Swedish spy who took that bag.
Det Danmark i en nøddeskal
Rotrex's quality control looks fantastic. They really make a nice product, good things happen to good people that put in the work and are not scared to reach out to others
Yes, excellent quality control, both thorough human inspection, and by machine for more quantifiable results. And every unit has a serial number matching it up with what batch of parts were used and when.
A big thank you to Rotrex from a long-time viewer of the channel! You've now moved up my list of supercharger suppliers! at least, the list of supercharger suppliers I'd look to If I ever actually got around to supercharging anything!
And it's ok Alex, getting drunk in Copenhagen is entierly too pleasant and easy to do, in fact, I'm surprised you actually made it back with ANY of your luggage! Man I love Denmark, It's kind of like a cross between Scandinavia and Germany, without the peculiar kinds of insanity associated with either!
I always wanted to use a Rotrex in one of my projects. Always thought they were a little on the pricey side, but after seeing they are handmade and not Chinese stuff I may play with one some day. That was a really good PR move from Rotrex to invite you like that!
Agreed
Sitting at home with Covid and your loud 2 stroke is making me feel better
I hope you get well soon
Get well soon.👍
Cow Id ?
I thought that was out of fashion
Really enjoyed this despite all the issues you had to deal with. Alcohol nearly ruined me in my earlier years and it is the most powerful drug on the planet. I hope you can stay in control as it, like boost, tends to cause runaway situations :) Thanks to watching how these Vortex superchargers are built, seeing the team and the business, I now know that I will be dealing with them for the next build. Very informative and thank you for posting this. Good luck with the rebuild.
Except it's not. Sugar is the most powerful and most destructive drug on the planet.
@@funone8716 can confirm. went through glucose withdrawal and now my brain is powered solely by reading dumbass youtube comments. doctors say I'm a miracle
@@funone8716 having run a half way house for people with drug related problems, I can say, hand on heart, I've never experienced this as a problem.
@@CrazedCrittic Neither has the 400 lb morbidly obese guy. It's a slow poison, takes years to kill you. Meanwhile the medical industry stands to make a lot of money off your insurance co. treating you 'problems'. It's so addictive in tricks people into believing it isn't. Diabetes is a billion dollar industry. I had high blood sugar until I stopped eating it, now back to normal.
@@CrazedCrittic not a lot of halfway houses for sugar addicts...
Anyone else from UK?? I've been watching this dude from way back when he was doing all his dyno work with the aprilia rs frame an the knowledge I've gained is unreal ..... keep up the good work man its a brightens up my day watching another mad man allowed to go full crazy an build whatever you want
I designed and 3D printed a centrifugal electric supercharger. It works. Charges my Volvo 1,6 D at 4-5 PSI. Ran at ~20 000 RPM with a 12S 5000 mAh lipo. I'm going ot make a new one with a higher Kv motor and a big 24 V battery next.
See Alexltdlx
I can't think of a worse punishment than to speak to a Dane while hungover. 😅
As a machinist of some years, the whirrr of that gearbox brought both a thrill of anticipation and a sigh of satisfaction at knowing that they had chosen to share the depth of their knowledge by opening their shop to you. What an honor!
I'm 25 and have had not much experience with 2 stroke engines on the tuning part, however I have been watching your videos for over a year now, and it feels like I have been there all the way, down to the engineering side of things. Thank you for your wonderful content, and looking forward to the pip engine running with the supercharger!
The most honest travel vlog video ever....it happens to us all!
🛬☀️🇩🇰🙂🍺😋🍺😃🍺😀🍻😁🥃😆🍹😅🍸🤪🥂☺️🍔🍺😏🍸🥴🍷😵😴🤢🥵😨😱😬
They let you assemble your own compressor! That is the coolest thing ever.
Rotrex has been a great company to me also. I am doing a special custom build, and unfortunately the larger units can get pricey. I messaged them regarding some design data, and possibly some 3d cad data for solidworks mock up. They were more then helpful to send along any info i needed to design and prototype with. Even to the point that i was able to 3d print some mockup dummies to test fit with. They were magnitudes more helpful then the slouches at Vortech superchargers who wouldn't even give you the time of day. The Rotrex is light years ahead in design then the other centrifugal supercharger companies.
One thing to keep in mind is Rotrex has very specific design parameters (oil feed placement setup, and drive constraints). The Rotrex do not like sudden rpm changes "ie" banging off the rev limited.. etc. and had issues with input shafts snapping when folks were stressing them with erratic rpm changes.. So during testing its best to slowly work your way up to higher pulley ratios and keep rpm changes as smooth as possible (more so on the larger units which have alot more inertia moving inside) I believe their newer units have strengthened input design.
Would it be possible to use a freewheel pulley from an alternator on the rotrex input?
@@aleksejunas In theory yes, however those "freewheel" one way bearings are not designed for the abruptness and high torque transfer that would be seen with these types of applications. Even though this is a small scale super charger, it could easily see 20-40hp of power transfer to drive the supercharger thru the belt drive of the system. Larger units can consume 150-300hp thru the drive system to run the supercharger. Those one way bearings (in stock sizes) might have issues with internal locking. Would need to test to find out.
OMG this engine is 70% blower. Looking forward to next week.
This has to be the largest 50cc engine ever!! 😂 You can hardly get a glimpse of it beneath all auxillary støff. Love it to bits.
Now that's what I'm talking about. Way more efficient than the Rootes for high boost levels. Good stuff, I'm excited!
You're gonna have to be very mindful of fuelling when you shut the throttle at pressure. I'd also test the carb body and seals at pressure. Apply 2 bar to the carb and see if it leaks. You also have to be mindful of fire. Leaks at the carbs have both air and fuel at high pressure, this is basically a flame thrower.
Most motorcycle carbs do fine until 30psi and a simple plenum that encloses it will stop that issue easy. As for when you close the throttle it should have vacuum behind it. You can also go a good bit higher without enclosing it with flat or round slide carbs than you can with a CV although the CV will tune easier. The pwk I'm using now sees over 60psi occasionally and aside from a brace to hold the bowl on and a small oring where the cable goes it barely makes any leaks. (Small mist around the cable hole)
@@oliverscorsim I'm saying to Alex he should test 'his' carb as not all carbs are created equally lol
The boost might blow that slide plate out. need to make sure there is boost on the "pull" side of the throttle plate.
@@dirtygarageguy great plan but not so easy to test. It's a small problem most of the time and I don't think we're gonna see Alex take this thing over 25psi tbh. Would be awesome if he did and if he plans on it I'd skip all that and just put it in the plenum so it can't be an issue.
@@rubikmonat6589 yes actually a stiff spring works most of the time but a reference port would be a great way. I did actually have this happen on my first 40psi road test and let's just say I'm glad kill switches work lol. Now I run a stiffer spring and i drilled the slide hole abit bigger problems gone but I did forget about that oh shit moment way back lol.
That was quite fortunate to be given the chance to assemble your own Rotrex supercharger. Hopefully nothing goes wrong with it but if it does you’ll understand it’s inner workings being the one who assembled it. No big deal it’s happened to a lot of us, the getting sauced on a little work trip thing😂 Really looking forward to your next video.
that was incredible! so nice of Rotrex for letting you film, and thank you as always for the golden content!
Hey bud love the build been here since the first vid. Check out my vid explaining a simpler blow through set up. Stick to blow through the charge cooling is worth the headache over efi. We saw -250°f across the carb on e85 and more like -110°f on efi. I have zero experience with that carb specifically but as far as normal motorcycle carbs go the pwk is very tuneable. We even moved the powerjets out of the carb and into the intake trumpet for some fuel flow alitte earlier for cooling. I would say if my turbo 155cc needs about 675cc of plenum to smooth out the pulses all the way your 2stroke probably will need about 400cc. Do remember to put your pitot tube after the bov and before the plenum youl thank me later. If you need any help with it iv done about 50 blow through set ups. Those fuel pressure regulators are hell. I did get one to work but getting that base pressure low enough is not fun (youl have to make or modify the spring) it won't go low enough consistently. And it's kinda a big setup (heavy and space is always an issue for bikes). Currently to make things safer I made a small tank about a liter with a check valve from the tank and a vent with some baffles. It's still above the carb so gravity gives us base pressure then boost gives us the rise. I pressurized the tank for a long time but as boost got over 45psi I didn't like how much the tank was growing. This iv tested to 120psi and it doesn't move. Saved me 11lbs and a ton of space going this way and no more super rich on decel and more power available for spark not having to run the pump from my little stator. Best of luck I can't wait for the next one and don't feel bad blow through isn't exactly an easy thing it's okay to pull some hair out during it lol.
Very cool video! you should totally do more of these and get more sponsors, it will promote their business and you'll get to try tons of chargers on your engines!
Well done Rotrex! Awesome content.
you are a head person who wants to know and can do everything exactly, who thinks about everything, Best Greats from Austria !
You still kept your glasses on your face Alex, call that a win !
And how very generous of Rotrex, what a great gift, and as you say, what a great place to work, Nicklaus and Benjamin you guys are legends !
Even with the lost footage you are getting good at this documentary stuff!well enjoyed 👍🏼
Danish people are almost as soaked in alcohol as the Irish population. Don't get me wrong though. Both are the friendliest kind of people you can imagine. Every time Danish people show up to our big racing event here in Sweden they always try to give me plenty of drinks. It feels bad to decline them but I have an important job to do at the track. Hangovers and decibels are not the best of friends.
I think the centrifugal blower will be a much better idea and will give much better results. Looking forward to this build...and the huge performance figures!
This channel just gets better and better :D
Nice trip. Glad you made it back. Looking forward to next week
Your best video yet! The honesty is so good.
Thanks man!
@@2STROKESTUFFING thank you!
Drinking like a true norwegian!
So awesome that they let you build your own supercharger, perfectly fitting for this series
I remember in the 70s in elementary school they would show us tours of how fun things were made in a factory, perfect representation.
Voice over was fine. Very well done.
Brings back memories of fitting Rotrex to motorcycles. A lot of fun.
These videos are GOLD! Keep up the great work!
That planetary roller systeem is a thing of beauty. Would love to see more details on how it works. Rotrex is a Great company
I had no idea! I just thought it was a normal helical gearbox like other centrifugal blowers were. Really cool stuff!
I wonder if it's like a Cycloidial 'gearbox' kinda thing?
@@austinmaxi No. It's like a planetary gearbox but with wheels instead of gears. It uses a special oil that get "sticky" with friction.
The way you talkabout your filming is basicly te same as your approach to 2stroke. love it
your channel is better then network television.
don't worry about format, we love you.
OMG That was so dam cool for Rotrex to let you assemble your own super charger ... So envious , Cant wait to see you build the set up for the Rotrex.. Go easy on the Beer when traveling... Id say, that was a sponsorship from ROTREX , congratulations !
i think your going to have to put a reed valve back in the system as a roots blower is a positive displacement design and the centrifugal wont stop reversion till it has enough rpm to stop reversion. the crankcase pulses may be strong enough to cause compressor stalls.
Haha, I'm sure they would love to have you on the assembly line. Like you know this construction already💫
i think they deserve there name on the belt plate for the dyno that way your sponsors get full exposure. looks like they looked after you very well cant wait for the start and that sweet noise 🤩
They'll get a big spot on there👍
Thank you , love your videos they’re good for my mental health.
These videos are great fun and inspiring. I’ve even started fiddling with a little old moped engine with some success.
Thank you for the confidence. 👍
10:35 when they said you could work there you should have asked about the employee discount for the supercharger your building lol
Can't wait to see that thing making boost! Definitely get some different sized pulleys ready and start with low levels of boost and dial it in before really cranking it up, nitromethane also burns very slowly so dialing in the timing will be crucial. Great work Alex that's super cool you got to assemble you're own supercharger, and hence know the entire assembly process. Nothing better than expanding your knowledge when it is in regards to making power!
I love how you show the fact that you messed up and drank to much reminds us all that your just one of us, awsome video man deffinatly my favourite channel
I have a feeling you’ll really like the centrifugal over the roots type.
I have the same experience with trying to film others. Normally, the whole writer/director/actor/DP/editor/sound guy/colorist is in our head. As soon as you need to coordinate just one person, the whole thing changes completely, and at least for me, it is back to being a newbie again.
Edit : Pretty nice of Rotrex to quickly paint all their arbor presses and assembly line rollers teal colored and ad the orange oil can to match your Netflix color vibe :)
😁 They even painted their skies
Amazing work Alex. I just had a hangover aswell so I 100% agree on how you felt during that factory tour.
I would look into a pressure box for the carb so the entire carb is pressurized making it much easier to tune. Even with that I think your MUCH better off with EFI as it's on the fly tunable and much less risk of a catastrophic melt down...
Don't even need to watch it to like and comment 😍
Things are about to get real! I love your channel and the things you create. Your pushing yourself to improvement gotta love it. Big respect from Kentucky
Gillar verkligen att kolla på dina filmer, alltid intressanta och inspirerande.. Stor tumme upp...
Nice to hear you speak Norwiegan and the other guy danish,.. you did well with this filming bra jobbat trotts that drink overflow =D Love cheers =) from Sweden
Your sense of humor got you a subscriber. Your love for gin and tonics will keep it for you.
Remember that a hangover is the proof that you had a good time last night ;)
Can’t wait to hear it zing pretty sure it’s gunna be spicy😂😂😂 loving the progress with your own designs especially the brute force, so glad doing the tube full time is working out, looking forward to see what you put together for the landspeed bike.
Awesome Alex that's the supercharger option I was thinking couple of video's back , it will smoove out the induction exhaust now .
Keep belt short though.
Don't forget fan for oil cooler.
This will be Awesome cheers.
While looking at the C15 the other day and doing a rough calculation of the engine to blower ratio it suddenly occurred to me what was happening with the Roots blower. As you mentioned in this video, the pulses from the Roots blower would be out of phase with the engine and you would not be able to come close to solving that without an enormous plenum chamber. Perhaps a multi-vane blower could have helped but I think this blower will solve a lot of the problems in a much more satisfactory way.
A whipple charger has more veins so less of a "signal" I would suspect?
You need to give that shit up man. This ain’t a party it is now your business.
I get hammered too, buddy.
That was really awesome of Rotrex. When you go efi, speed density would be very easy for you to tune with your setup.
Great video, nice to see the innerworkings at ROTREX 👍💗
I really like your honesty, goin on a trip to a supercharger factory and ending up getting there with a hangover .. brilliant! It is a good thing you are not my neighbour, since i love rum also very much 😅 keep up the good work! Cheers
Amazing rotrex centrifugal turbo setup, can't wait the assembly
Hey Alex, putting the carb downstream of the turbo will pressurize the carb, you will not draw any fuel into the airstream.
How about something like a plug and play Holley EFI, that allows you to set air fuel mix accurately using an O2 sensor in the exhaust
Keep up the good work we love it
Geoff B
Can’t wait to see it run with the new goodies!!!!!!
0:59 you made me remember and watch a lot of Pearl Jam videos. Love your content btw.
Now I am happy
When the keg was gone, my buddy (who was many times the host) would show me where he had the Tanqueray hiding. This was last thing I could remember everytime.
nice new Supercharger
this is like watching bob dylans never ending tour,,,you dont know whats coming next and we are all along for the ride. ACE.
The boost curve rises with rpm on your new compressor. Unlike the roots. You will need to install a good blow off valve to control boost.
A cam for a turbo and Good content, not a Bad trade 😅 hope everthing works out and These Guys like the Projekt as much as we👌
Loved seeing the Rotrex factory...
❤👌🏼❤👌🏼❤👌🏼❤👌🏼❤👌🏼❤
That's like a USA PROCHARGER, Great guys at Rotrex to sponsor one. I hope the Publicity they get is worth it.
I've found drinking equal parts water and drink of choice by volume eliminates hangovers. It also cuts the amount you can drink in half, which also helps.
best thing ive found to stop a hangover- liquid IV packets. drink a couple of those throughout the night and before bed and you will be amazed. no hangover!
I've never had a hangover (I've tried for 40+ years, but just can't seem to get one) but I hear they can be rough, thank you for toughing it out for us .. really enjoying watching this little motor come to life ..
What a nice way to start the weekend! Thanks man. Greetings from Denmark.
I have seen so many episodes of "Bonderöven" that I could almost understand what the danish guys said. It will be very interesting to see how it works out with an centrifugal compressor.
What an amazing piece of kit. Cool company. Looking forward to next video.
I'm glad you show the journey
Yeah I'm also pretty shy about doing videos around other people, definitely something to work on in the future. Anyway looks like that charger was built with quality parts...assembly quality I'm not so sure about!🤣Lol just kidding but excited to see how the Rotrex works out!
Top quality parts assembled by a complete amateur😁 luckily I was well supervised.
Thanks, from Okla., USA.
What a great bunch of guys and an incredible experience. Thanks for sharing it with us!
Gonna be really exiting to see how long before you blow the top, ;D
He has blown the spark plug part of the head off before 🤣 he will probably do it again if he makes enough boost
The "Even Flow," you spoke of is called laminar flow, fyi. Love ❤️ the content man, thanks for being the two stroke community glue!
The "Langtuning" sticker in the left corner of the blackbord makes me smile😁 i hope your engine will be running soon without any problems . Great wishes from east germany 🙏✌️
I love the fact they are using manual press, hand torque wrenches etc.. Shows they really put love into their work vs smashing products out the door 🤘
I love how the Norvegeans, Sweds and Danish people can speak to each other while not sharing the same language !
When you do an interview by all means ask the questions that you would ask, myself and I'm sure many of your viewers have a brain for this kinda thing and we understand how things tick so there is a solid chance anything you are curious about/ intrested in asking will be perfect
Happy you survived Copenhagen sorry about your gopro looking forward to see the new rotex
Your two stroke adventures have truly been an inspiration! I love that you challenge the status quo, while validating thru experiment. Something that seems to have faded over the years. Keep testing!