Finishing & Running the 2 ROTOR Wankel RC!

The process of joining two O.S 49 PI type II engines, has come to its end!
Apart from a bad start and a broken rear counterweight, everything went well. The engine at the moment, is working at very rich settings to prevent any overheating and it will be leaned out gradually.
Also there are some leaks that need to be addressed, but other than that, the engine starts right up, idles perfectly and has incredible throttle response considering the rich settings.
It took me a while to finish it and the result is very rewarding.
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[@alexanderwoolley1623]

not surprised the motor broke, most of it seems to be built with guesswork and lack of knowledge in mind, next time try researching your projects and building from there.

[@thedailywin537]

Perhaps you would do us the kindness of going away. It's plain that your comment couldn't possibly apply to any of the content presented on this channel. Remember: you can't be missed if you won't leave.

[@13panda13]

​@@thedailywin537 oh cmon, they are as entitled to their opinion as much as yours. Its not your channel, so shut up.

[@stevedunn854]

@@thedailywin537 to be fair the engine stopped after first fire because “front rotor dig into the plate”. A properly measured and assembled engine this would have been spotted. So whilst harsh, Alexander is right.

[@alexanderwoolley1623]

@@stevedunn854 my point exactly, nothing was actually explored nor was it tested/measured, it's just the equivalent of 'I put together a lego engines'.

[@thedailywin537]

@@stevedunn854 I don't disagree that the rotor/plate failure was a blunder. 👍 I still take the broader view that the channel owner's general skill set, which is plainly evident in all of his build videos, is such that it shouldn't be unthinkingly dismissed out of hand (which is the tone of Alexander's comment). A simple mention of the rotor/plate issue, or even a gentle critique, would have been the correct and diplomatic approach here. It's instructive to consider that JohnnyQ90 could have edited out this particular event, but he didn't. His long-established M.O. should guide our corresponding feedback.

[@LogicalQ]

Anyone who can scale a rotary engine down to roughly the size of a baseball deserves a sub in my book.

[@2muchofyou]

They are commonly made for rc...

[@SandmannOZ]

What he's actually done is take two radio controlled plane rotary engines (made by a company called OS) and converted them into a single, dual rotary engine. Still some incredible home engineering skills, in fairness... but not entirely home made.

[@zachyurkus]

Dude’s out here machining his own multi-rotor crankshafts for RC cars as well as other fully-custom CNC and lathe-built parts. It’s incredible.

[@therealrobert5877]

Agreed

[@battaliance]

@@SandmannOZ an aircraft rotary engine and this are 2 entirely diffrent engines, this is a Wankel rotary engine, and aircraft rotary engine has cylinders and pistons just like a regular engine, but the entire cylinder block rotates as opposed to a rotating output shaft

[@doca8792]

Just the fact that you have the tooling and knowledge for such a small engine is impressive.

[@bigsmoke1811]

The tools is the hard part. Understanding small engines is simple. And it's different for a rotary engine but it's the same concept of compressing air and fuel, igniting said mixture and it combusts to make power.

[@mdtransmissionspecialties]

All he’s doing is stepping the scale down of a original engine..?

[@mr.channel6467]

Time and money. That’s it

[@larrybrown9279]

The best part of the video to me is the very satisfying sound of a "snap" from all the parts as he puts them together. Very preciseally satisfying.

[@AaronAlso]

I have to wonder how many of your viewers know what sort of wizardry you pull off. Having worked manufacturing for 2 decades, and quality control/precision measurement for 6 years; I am always impressed by your work.

[@Cai_VR]

Time to perfect the mini turbo design for maximum Rob Dahm!

[@Hoffman0911]

I agree

[@alim7502]

And then put it against a 4 stroke RC car with Hoonigan Mustang body :))

[@cj09beira]

just missing 1/2 rotors.

[@janimyyrylainen2553]

Then build an rx7 rc body around it 😍

[@champ0682]

I was just coming to say this Lolol!! A miniature 4 rotor IS WHAT WE NEED…and maybe a supercharger for the v4 😈

[@BitSmythe]

11:40. Yep, that’s what happened to my amazing RX2 in 1973. The Mazda had an amazing engine. I could do 50 MPH in 1st gear, or 10 MPH in 4th, and it still had great torque. And response like a slingshot!

[@warbot2544]

How is that possible?

[@BitSmythe]

@@warbot2544 Those are some of the benefits of a rotary. Always lots of torque, and very high RPMs possible! Too bad they hadn’t figured out the seals well enough. I loved driving it.

[@Matt-jx2gu]

@@BitSmythe Excuse me? High torque on a rotary?

[@BitSmythe]

@@Matt-jx2gu OH yeah. It was awesome!

[@turbocpt1]

I'm sorry, torque? Rotary engines are hossible at creating torque.

[@BanterMaestro2-bw9vr]

Your craftsmanship is off the charts. That is simply gorgeous.

[@michaelboyko5024]

Wow, I watched the video holding my breath almost till the first start! I'd sooner call this magic if I didn't see the process with my own eyes! It's as much fascinating as an airplane in 1904! You're a great craftsman, absolutely no doubt!

[@ethannye7940]

I’m so happy this is finally completed, I feel the next step is just adding more rotors until whatever RC vehicle it goes into just has to be built around its size. Great job with this build 😁

[@ImAcidic10]

@Captain MufDyven *Rob Dahms 4 rotor RX-7 F1 sounds intensifies*

[@beanyboom18]

@@ImAcidic10 Was thinking someone should @ this build to Rob.. lol

[@ethannye7940]

@Captain MufDyven that would be incredible 😂 it would sound like an angry barrel of bees defending form the sky.

[@panther105]

This is why I don't have a lathe.... I'd never do anything else... They'd have to drag me away.. !! Curious the demand draw, pulse cycle overlaps with a shared carb and intake manifold..

[@repentoryouwilllikewiseper8741]

Repent to Jesus Christ “Blessed is the one who perseveres under trial because, having stood the test, that person will receive the crown of life that the Lord has promised to those who love him.” ‭‭James‬ ‭1:12‬ ‭NIV‬‬

[@ssplintergirl]

This channel has been consistently the absolute coolest, well done content, for years.

[@_Jester_]

Yes, no unnecessary music, just the bare bones manufacturing noises. Love it!

[@randalkeller4845]

No gaskets? The tolerances must be dead on amazing! The world needs more machinists like you Sir . Much respect and great work 👍🏻👍🏻👍🏻👍🏻👍🏻

[@timarc9895]

This miniature engine, albeit an amazing feat of machining, was puking fluids all over the bench. I'm sure it could've used a few gaskets.

[@michaelpressman7203]

The thing that really amazed me with those cams that he made heat treated them and then ground them to specific dimensions that is amazing have a great day

[@mrgreyman3358]

if you wanted to pay a million bucks per engine maybe. for us plebs, gaskets are a life saver, and easy on the pocket book LOL.

[@tonygonzalez9699]

Simply amazing. One of the best videos I have ever seen. I'm a huge fan of the rotary engine and to see it scaled down to that size is simply amazing!!

[@DaneC020]

That thing is amazing. I'd kill to be able to make one of those bad boys. Glad you didn't damage the rotors and housings too badly when it seized, I would have probably cried for you. Keep up the amazing work!

[@RCTanksTrucks247]

Amazing work brother! Can't wait to see this in a car

[@qofiagya4891]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@kentaltobelli1840]

Hate to break it to ya, Mazda already did it :/ (but still lots of room for improvement!) RC car though, that'd be a wild ride!

[@g.o.b.2558]

@@qofiagya4891 TRASH 🗑

[@spinklin]

The patience and care in this vid as well as the presicion is absolutely stunning. What a wonderful crazy thing to make and share. Thankyou

[@ylleba]

These projects that I've seen you make are absolutely incredible. Very impressive!

[@aserta]

I half expected the episode to start with "Hi, i'm Rob Dahm..." :)) Nice work on this one, you're getting better and better at machining stuff.

[@feedyourpassionstoo]

Make a 6 rotor for dahm! Lol

[@cj09beira]

@@feedyourpassionstoo these engines are quite rare sadly as they are no longer made.

[@feedyourpassionstoo]

@@cj09beira I could probly source 1 or two locally myself. The E shaft would have to be super strong, I wonder what material would be necessary?

[@cj09beira]

@@feedyourpassionstoo just a hard steel that one could later harden and temper, there shouldn't be much need for exotic steels.

[@davelowets]

@@cj09beira 4140 would most likely be more than enough. 4340 would bullet-proof it.

[@ICGedye]

I loved this video, it takes me back to the days when I was young and all the gear to hand. The sky was the limit. It must have been frustrating to experience these set backs.

[@hunterphille1280]

That's crazy! I'm just starting to get interested in all these different little engines and it's amazing to me how these are handmade and work so well! Thanks for the video! You did an outstanding job!

[@jmc2567]

What a great machinist you are and surprised how responsive the engine was and how quickly it returned to idle when you let the throttle off. Best wishes to you, from, Auckland, New Zealand. Awesome vid and great camera and sound.

[@datdudeinred]

This dude is so capable. Above and beyond anything i've seen.

[@Nordlicht05]

These people must be somewhere. Just look around what things you are using. Especially the one that invented it or... A huge part of it.

[@Scuba_Bro]

My dad is a tool and die maker and spent years as a machinist and welder(he makes stuff like this and more in an aerospace company prototyping shop… the stuff he makes like this blows my mind and he never went to college. Made me appreciate the power and skill of the industrial tradesman 💪

[@adamgentry332]

No kidding...I'm jealous

[@qofiagya4891]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@g.o.b.2558]

@@qofiagya4891 TRASH 🗑

[@evielknievel4972]

I really admire someone who builds something like this. 👍 Great job! And it sounds amazing.

[@philoverton8668]

That signature rotary sound is amazing especially on such a small scale, well done

[@user-jk5qg6cg9j]

Sounds nun like a rotory

[@jima9863]

you should put a cup under the exhaust to catch the unused fuel

[@jimmiejones5865]

What happens when it backfires tho

[@jima9863]

@@jimmiejones5865 nothing

[@moja7585]

Can't wait to see mini rx8.... great job and thank you ❤️

[@3089io]

I've followed you for years and it's really great to see all the places you go with making tiny engines. I really enjoyed the tiny jet engine experiments intially. This work is particularly beautiful to me. I still think someone needs to make a thumb sized jet engine and continue that work you did. Maybe one day that will be me. I want to use one to power small electronics with high proof rum because I'm an idiot. Super cool stuff though. I look forward to seeing what it gets put into!

[@larrybrown9279]

Rum has many beneficial lubricating properties.........

[@crabmansteve6844]

With parts like bushings and keys, etc, it's always good to make a couple like you did. If you have time to make one, you have time to make two. No one ever said "Man I really wish I didn't have a set of replacement parts". I'm glad you went back to dual carb, I love the way they look, especially on classics.

[@georgekalafatis7286]

I can respect the intricacy and the time and the planning is just amazing I'm a mechanic myself and I know you can't just pick up a screwdriver and do this thing this guy has to be a NASA engineer very impressive

[@knightsportsfc3s]

Proud moment for me. Well done my friend. You have done exceptionally well and persevered with your build. I'm sure if you're a true rotar head you're already working on a triple and quad motor. Lot's of respect for your work 🤜🤛

[@philipgrobler7253]

I can only imagine how fast a R/C car will accelerate with this little gem in it!

[@STITCHWA]

Be freaking awesome to see this thing rip in an RC car. Great video thanks for sharing

[@kristopherdetar4346]

You must be an aerospace machinist. Beautiful ultra fine intense craftsmanship. Enjoyed watching your amazing build.

[@teaddict-]

Sounds like it runs pretty smooth! It's always exciting when you upload a new video about this project. Looking forward to the next one :)

[@qofiagya4891]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@jackrichards1863]

I have a hatred of the rotary engine. That revealed however this little bugger is to be admired. So to is the work you managed to create it. With RPM so high it has real potential for use . I'm deeply impressed by what you produced and truly admire that you kept at it, until it runs well. Beautifully machined parts.

[@LeonardoCostaUSA]

OMG no words tell what I've just saw!! awesome! I want that life for me ! The engine's sound worth every drop of burned full !! That would be amazing to see that beauty flying !!

[@julesviolin]

Genius !!! Well done I'm staggered how quickly the single carb weak mixture seized the rotor !!!

[@michaelclements4664]

Nice, brings back memories. Back 25 years ago I built an RC plane with this engine, the OS Wankel 4.9cc / 0.3 ci (single rotor). It ran and flew well, made good power, but it had to run rich which is not efficient, and with glow fuel this is messy. My first one gradually lost compression and stopped running after a year or so, despite careful initial breakin and running it rich. OS sent me a new one under warranty. Despite its limitations, it was a unique and fun engine.

[@Cerberus984]

RX7 owners put small amounts of oil in their fuel tanks for longevity

[@michaelclements4664]

@@Cerberus984 That depends on the year model. I raced a '95 (twin turbo) in SCCA and we didn't add oil to the fuel because the engine had an oil injection system that automatically triggered at high throttle/RPM.

[@davidgierke7582]

@@Cerberus984 The oil is mixed into the fuel... like a two stroke cycle engine.

[@KentandHanni]

You certainly did a beautiful job machining all the parts for this twin rotor. It turned out very nice. I was looking at your cooling fins knowing these motors run very hot. Then i realised the amount of fuel you put through the engine provided the additional cooling. I used to run a Mazda RX8 rotary but it only manged 45000 miles before requiring new apex seals. Would be great to see your engine installed in an aircraft.

[@xXAlexbXx-hl9nf]

Was the rx8 a fun car to drive?

[@KentandHanni]

@@xXAlexbXx-hl9nf Yes it was an amazing car but expensive to run . In the end in lost £14000. The price of fun is not cheap.

[@danehewitt1709]

This is absolutely amazing. The amount of time it must’ve taken to build this little engine. I cannot even imagine having that kind of patience. Very well done.

[@michaelpressman7203]

I was a tool and die and mold maker for 45 years and I have to admit your genius as far as you design and you're the best machinist I've ever seen man I am impressed have a good day

[@rocknrye9273]

Its crazy how extremely fast the RPMs drop to idle. Its almost as if its idling as you rev it lol so cool. Has the Rotor idle and 2T sound.

[@chriscoolTV]

Its normal for a very very little engine

[@bricaaron3978]

@@chriscoolTV Largely rotating mass, though, right? Racing engines on actual vehicles respond very similarly.

[@pnwRC.]

AMAZING project, it was neat to see it being bench tested!

[@pierre68299]

The kind of machines, lathes etc. You have is just mind blowing

[@wayneorendorff5657]

Long live the mini Wankel! What a thrill it is to see you machine such an engine!

[@sakumar]

Terrific project! Congratulations. I love these little OS Wankels and have two of them. One thing, a propellor, in addition to providing the rotational momentum like your flywheel, also functions as a radiator fan to push air over the fins on the engine to cool it. Your IR camera didn't show things to be too bad, but in the long run that may be a problem. I suppose you could use an external fan for bench running.

[@Lozzie74]

I had the same concern about cooling

[@BTW...]

It will suffer heat damage in short time. There are better ways to combine multi-rotor arrays.

[@inoahmann7542]

@@BTW... running as rich as it is, I doubt it'll get too hot. In a loaded application with a proper tune, it would probably overheat.

[@BTW...]

@@inoahmann7542 Hahaha... oil cooling through oil loss, it will still overheat the rear rotor and housing. In a loaded application with a proper tune, it will certainly overheat. The rear rotor and housing is in a draft shadow AND if intended for an enclosed under a car shell and used at high rpm (14,000 is a pointless operational rev anyway) it won't last long. As stated, easier and better ways to configure multi-rotor engines given a gear reduction drive will be used anyway.

[@inoahmann7542]

@@BTW... Not oil cooling, actually evaporative cooling from excess methanol boiling off and not being burned. It has a very strong cooling effect. To brake in a nitro engine in cold weather you need to block off all it's cooling fins because otherwise it'll never get up to operating temp, and that's running the engine with a load, sometimes running it wot for a few seconds at a time. In a car it would need a cooling duct and fan to run with a proper tune but these engines don't need a ton of cooling like gas engines do. I don't know about this engine specifically, but I've seen os rotary engines rev out to 25-29k before (unloaded). Most nitro engines can rev in excess of 30k rpm and some can rev over 40k.

[@URHYNS]

Really cool! And so realistic, runs super rich, leaks oil all over the place and smokes up the whole area, just like a full sized rotary :)

[@loekfa]

Respect for your craftmanship and patience !!!!

[@DillonNichols]

All of your videos are amazing but this is probably my favorite project so far. Can't help but watch with a huge smile on my face.

[@Lozzie74]

Beautiful work, as always. How did you disassemble and fix the seized engine when the rotor dug in? I’d suggest using a propeller rather than a flywheel for forced cooling.

[@d.chnippelson_aga]

Потрясающе! Отклик на подачу топлива и максимальные обороты выше всяких похвал! 👍🤝

[@TheExplosiveGuy]

Congrats on getting it running, this has been a long project and it's nice to see things come together.

[@AndrewRafas]

It is so satisfying to watch your work. All that precision is awesome.

[@simplywonderful449]

I have one of the O.S. Wankel engines, intending to use it in a Piper Cub R/C model. I broke it in properly, but have never run it further than that. The price of these things is ridiculous now. I ran mine for break-in with a prop on it to ensure cooling of the engine, by the way, otherwise the engine gets very hot as you showed. Congrats on this project!

[@michaelpressman7203]

I agree as far as the fan it would have saved a lot of grief even though the motor was right on have a good day

[@alvarorodriguesschmidt8507]

I cannot affort machinery and tools right now, but my plans for future hobby is create tiny mechanical stuff with sensors and eletronics and your channel is a great inspiration! Thanks

[@cj09beira]

Boa sorte.

[@qofiagya4891]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@g.o.b.2558]

@@qofiagya4891 TRASH 🗑

[@mrgreyman3358]

thanks for the video John. I enjoyed watching the process very much. The best way to learn is from mistakes, if nobody made mistakes, we wouldn't grow and learn as a people.

[@SciHeartJourney]

Now I'm really fascinated by Flowmax mufflers. They had sound engineers design them to give optimum performance with less noise. Noise is the ONE thing I dislike about these small engines. Add a big muffler and it might not work at all. It's not very easy to make a good one, but I wish I could find one for these small class of engines.

[@xXAlexbXx-hl9nf]

Never really thought of that. You bring up a great point

[@HCSeelig]

Hey JohnnyQ90! I really admire your work, like jewelers precision. If I was rich, I'd buy something from you, but, I'm not. Very satisfying.

[@primorec17]

i have no words. this is amazing. you should be super proud of your knowledge. well done!

[@goingoutotheparty1]

I'm an Electric Guy but I LOVE what you did there it's so nicely homemade, looks amazing crazy little powerplant

[@TheLopen69420]

This thing is super cool and when it comes to the single carb making run lean I believe it’s because you have the airflow doing two 90 degree turns before entering the engine the fuel in the mixture is getting caught on these turns especially the first one I think it would work if it was a less aggressive angle off into each cylinder

[@renesisfd1]

It is also the fact that the is trying to move twice as much air through the carb. If he had one rated for the airflow it would work.

[@Erik_Swiger]

Since you specialize in small engines, it would be fun to see you do a "large" engine, such as a 49cc moped engine, but as a V8 or maybe an inline 6. I'd love to have a V8 moped.

[@freddieparrydrums]

Agreed

[@jerryc6147]

Here ya go. This is so cool. kzbin.info/www/bejne/gaqzaJ95hJuKeMk

[@jinglemyberries866]

like keith57000's v10 engine

[@joshuaprobably852]

Straight six moped. Or maybe somehow a small scale diesel??

[@TheCardinal365]

The first RC wankel motor i have seen and wow, what an engineering achievement! Amazing work!

[@guidobosson3332]

The way everything slides into its place is magnificent 😄👍🏼👍🏼

[@alexanderscott3647]

Beautiful work. Every mechanical apparatus takes months/years of thought and design more than one prototype plus countless hours of test bed operation to iron out the bugs. Still you never know if you've found all of the devices weak points. never give up, you're almost at perfection on this one. I can see it powering my focke wulf 190D 9. Good luck to you!

[@repentoryouwilllikewiseper8741]

Repent to Jesus Christ “Blessed is the one who perseveres under trial because, having stood the test, that person will receive the crown of life that the Lord has promised to those who love him.” ‭‭James‬ ‭1:12‬ ‭NIV‬‬

[@RenoLaringo]

I can't even imagine how this is only possible... The tolerances and all the thinking for each and every parts. It looks alien to me, honestly ! Fantastic work!

[@yavuzbesorak5041]

Bravissimo, fantastic. Just loved watching it. Apex seal chatter was my Ph. D. thesis, U. Wisconsin. Thank you.

[@Tidgepilot]

Having rebuilt a real Wankel which now has 30k miles on it, I can only say, EXCELLENT WORK !!

[@kentuckyblugrass]

After the time/money spent on it...I'd DEFINITELY be running it rich AF lol A lot better than melting or seizing it up. Incredible work 🙏🏻

[@rumblef1sh]

this is so wonderfully satisfying to watch, and I'm in awe of your skill and design abilities. Great stuff! :)

[@valentinvazquez7074]

The sound is ridiculous good any rc car with that will be extremely fun👍

[@garen_g2956]

Fascinating craftsmanship.

[@makere]

Love these Wankel RC stuff, nice to see stuff running.

[@qofiagya4891]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@g.o.b.2558]

@@qofiagya4891 TRASH 🗑

[@BraveMicrobe38]

Awesome series would love to see you continue to increase the amount of rotors

[@qofiagya4891]

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@g.o.b.2558]

@@qofiagya4891 TRASH 🗑

[@62saki91]

@Operaatio eeeh how about stopping at the 26b engine or what is in the mazda 787 racecar. 4 rotors.

[@Megadoculous]

Super impressive work Johnny. I owned a rotary Mazda RX2 in the eighties, it was a blast. Amazing engines.

[@jeffishturn]

This is absolutely ridiculous and I love it. ✊🏾. Beautiful engineering brother

[@64bullets]

Rob Dahm would love this!

[@RuNiTzEchO]

Could you do a 4 rotor or even a 5 or 6 rotor version of this? I think it would be incredibly interesting to watch and see how something like that would perform!

[@romie6466]

You are brilliant! Thank you for sharing, I'm amazed!

[@Wimmsi]

Thanks for not destroying the video with music

[@leokimvideo]

Nice line trimmer motor. I remember these OS motors from the 70's. Expensive and totally unreliable. In hobby stores they became the ultimate dust collectors.

[@Doonit_hard_way_since_65]

I had a friend that put a pair of them in a scale DC3. I saw it on the flight line many, many times, but I don't ever remember seeing it with both motors running at the same time.

[@ManualdoMotorStirling]

Your project is great! I just had a question, is it normal to release so much fluid from the engine exhaust? Or does the engine have a problem?

[@madsmc8789]

He was running it very lean for now ;))

[@dans_Learning_Curve]

@@madsmc8789 I believe it's the opposite, running very rich.

[@ThePaimChannel]

@@madsmc8789 very rich you mean, it was lean with a single carb. glow engines are release a lot of oil but that is excess, needs a fine tune on the needles, ( it is rich for break in process)

[@stonesie81]

@@dans_Learning_Curve Yep very rich to lubricate everything, model engine glow fuel is commonly 15-20% oil so a lot comes out the exhaust even when they are perfectly tuned... There are many different blends but the red colour indicates a synthetic oil and probably some Nitromethane with the majority of it being Methanol. I flew R/C planes for years and they are messy buggers. Great fun though.

[@onlinehelper374]

As he clearly wrote engine leaks on front bearing and exhaust,so yes, it's a problem.

[@lkw6640]

Wow, that's incredible workmanship! Well done!

[@haroldgodwinson832]

Amazing work. Thanks for sharing.

[@HRM.H]

Now it needs a scale Mazda RX3 chassis and body

[@g.o.b.2558]

@IMOES. SEXYY TRASH 🗑

[@g.o.b.2558]

@@jovanka--------4563 TRASH 🗑

[@Tunerfreak99]

Im not sure if it’s been said already Johnny, but that exhaust is meant for a two stroke. There is a tuned baffle cone in there for resonance waves. I think you would be better off using no exhaust

[@hakan8997]

Yes! And less heat in the engine.

[@davelowets]

Just a straight pipe would be the best option. Wankels LOVE a free flowing exhaust. Edit: He is also using the 2-stroke pipe as a means to pressurize the fuel system and deliver fuel pressure to the carb. Without the pipe on it he would need to design some sort of fuel pump, which wouldn't be easy. With the current exhaust and pipe, it acts as a rather linear, RPM referenced, fuel delivery system(more fuel pressure as the RPMs go up). Not easy to replicate the same kind of fuel delivery system without using a pressure tap on the tuned pipe.

[@davidgierke7582]

@@davelowets Not true. A simple tap on a straight exhaust pipe will pressurize the tank. Besides, there are multiple methods that can be used for fuel delivery.

[@davelowets]

@@davidgierke7582 Yes, it is true. Fuel pumps aren't exactly used very often in R/C applications... Also, we use taps on on exhaust headers on our race cars, plumbed into the valve covers of the engine, and it draws VACUUM into the crankcase, not pressure into it.

[@davidrobertson1980]

Simply awesome dude, I am a MM and studied the Wankel after buying an RX3 in the 70's, can't tell you how beating a car with a V8 off the mark felt with these little gems, but warming the engine was critical for the seals, I loaned the car to someone for a week and it came back sick. IDIOT right :( Owned 3 rotaries, but that was when I could afford the fuel lol This build from scratch is amazing (but having a lathe is a blessing and essential tool for the smarter of us - always loved metalwork!), well done Johnny, God Force has truly blessed you!

[@eriksark4883]

I had one of these OS Wankel engines on a RC plane back in the 80's !!!

[@bl00dh4nd4]

Have you ever seen the liquid piston engine? Great work.

[@Daniel-rq5ok]

Mate huge respect and admiration from a lifelong die hard Rotorhead. that's easily one of the coolest things I've ever seen especially with the twin carb. I've shared this video series with heaps of mates in the performance car industry and fellow brap brap enthusiasts, you have a definite sub from me and hopefully 23 more to follow. Where can I buy one of these crazy little Rotary engines mate?

[@Stevo736]

Great engineering skills its fascinating to watch you at work and that little engine is beautiful and revs amazingly.

[@hillbilly4christ638]

Your machine skills are amazing!

[@edgar9651]

Wow, I am sure many of us would love to do this. And many, including me, would fail for many reasons. So it's nice to see you doing what we would like to do. How much time did you spend on this project?

[@breakshot7451]

his skill set is really boss level, bravo

[@captaincreosote]

I think I'd fail at the think about it phase.

[@frankwilliams4445]

@@qofiagya4891 Wow amazing 😮 I'd love to meet you Anna ❤ 😘

[@ziggyman77]

MMMMMM Dorito sized Doritos in that one.

[@danjordan1979]

What s beautiful build! I was glued to it.

[@jeremy7923]

Love the craftsmanship man!! I wish I knew how to design parts for CNC.. awesome.

[@shred1894]

If you don't make an RC RX-7 I'll be disappointed. I'll leave it up to you whether you do FB, FC, or FD. I'd also accept an RX-8, but I wouldn't be happy about it.

[@585ronin]

Time for two more rotors. We love twins but quadruplets are way more fun when it comes to dorito shaped engine parts!

[@BTW...]

Sure, overheats 4 times as fast as a single.

[@JanTonovski]

True craftmanship!

[@MacNifty]

Now this is craftsmanship on a precision level that should be respected most definitely brothers!!!!