Micro SUPERCHARGER on the TWIN Cylinder 4 Stroke Engine! - First impressions

[@irelia2752]

Before judging or having suggestions for this guy. Let’s just appreciate he’s work and time he put into it. He creative af gj dude!

[@colossalbigfoot256]

I can’t believe anybody telling this guy what to do. He was the first one with this motor and has created a lot of one off stuff.

[@georgeyoung613]

I agree, this is pretty darn impressive.

[@hjl4004]

My comment was only a suggestion, not a judgement. Please don’t jump to conclusions so easily. I’m not a hater, in fact I’m a fan and I love his creativity!

[@bikerboy3k]

Commenting for the sake of platitudes.

[@irelia2752]

@@bikerboy3k you’ve been noticed.

[@TypicalBas]

Yes finally the return of the charger And happy new year to everyone reading this

[@7MGTE]

Happy new year to you too.

[@wolfkonig246]

Happy new year, and I see I'm not the only one who loves his charger videos :)

[@TypicalBas]

@Li Zhi-qiang - META I couldn't be more real

[@JL-wf2wp]

@@TypicalBas happy new year bud!

[@corporalclegg914]

Happy New Year, Indeed! let us all thrive in whatever job/career/studies/hobbies/relationships/quests/projects we undertake!

[@among-us-99999]

The amount of effort and knowledge it took to design and build this must have been insane.

[@giorgosdim9845]

not really, having the perfect aerodynamics at these sizes isnt that important, the diffrence is small

[@giorgosdim9845]

@Giuliano Skywalker well I don't personally own the equipment needed and I doubt my school or my boss would let me film in the workshop. Plus why would I? I've spend years learning these stuff go do it yourself, you'll learn much more than I could teach you in a video

[@asmithii84]

All he did was add a turbo to the already built little engine

[@Zandercd]

@@asmithii84 no no he not. A supercharger is driven by the crankshaft of an engine, usually connected with a belt, therefore requires engine power to run, while a turbocharger runs off exhaust gases created by the engine. You've been learned. :)

[@alberto-cg7ox]

@@giorgosdim9845 mhhh I think the knowledge Is important to make a turbine.. I had a big exam only in the projectation of pump and turbine ..a loro of math , physics , physics of heat ecc ..

[@olajiggly5873]

Who else wanna see a rc car build with this

[@alwayselite3229]

Holy shit

[@alwayselite3229]

Are boosted rc cars a thing 🤣

[@danyal5288]

Boosted pulls on a rc car, one pebble and and the turbo is done for

[@alecgamer420]

my thoughts exactly

[@ksikidfox771]

For real. I was saying to myself "That's a whole ass R/C Engine* 🤣🤣

[@MrJp990]

Amazing work from one of my favorite youtubers! I just wish there was a way to measure the power output on such a small engine. I wonder how much extra power it makes! Anyway, keep the content coming! Happy new year to ya.

[@WarpedYT]

Jonny Don't be scared, increase that rpm to the f****ng stratosphere, then you will see results, I was working on a similar thing a few weeks ago. AWESOME JOB AS ALWAYS MAN ❤️....happy new year!.

[@raydoesaudiostuff]

Now he needs to make a bigger cam that will work with a supercharger.

[@raydoesaudiostuff]

well its actually pro-charged, its not a pro-charger, is a supercharger and I know that know so I thank you people for telling me that.

[@WarpedYT]

@@raydoesaudiostuff yes he's very talented he can totally do it.

[@damnthiccassboye7138]

Inject nitrous

[@WarpedYT]

@@damnthiccassboye7138 lmao... I wish Johnny would come over to my garage one of these days, I think it would be a lot of fun!

[@MrGrimCarnage]

I was watching the smoke coming out of the exhaust when you were revving it, when it gets to the higher RPM, the smoke decreases significantly, indicating a lean condition. I've raced nitro buggies for many years and this is one of the traits that I watch for during operation, to determine if the tune is correct. I couldn't tell if the carbs on this engine have a low speed and high speed needle, but you are definitely running out of fuel under full throttle, when the engine revs up. You can try richening both needles 1/2 to 1 full turn, and see if that helps....if there are no low speed needles, then it may become too rich to idle properly. The pull through carb that you showed at the end should alleviate the problem, assuming that it's large enough for this engine.

[@evansallee603]

I would agree with you! The carb adjustments make a big difference. I would also recommend if possible adjusting the ignition timing. This is because under boost the fuel air mixture in the engine burn quicker which could be potentially fighting the piston downward before it hits top dead center.

[@ronbradshaw7404]

You may be right. There is the fuel pressure entering the carb too, HAS to be over the total boost pressure otherwise, fuel starvation will occur...

[@ravensfan7986]

I was thinking the same thing since I know that with all that extra air getting into the engine you need to compensate by adding more fuel. If he was using the same carb as before that could be an issue if the jets aren't large enough

[@TestECull]

They do have LSN adjustments....standard TN carbs...but the problem is more that he's running them blow-through than it is anything else. No amount of carb twiddling is ever going to get it to run right; these carbs just can not operate properly under boost conditions.

[@TestECull]

@@evansallee603 Ignition timing is fully automatic with these engines, set by nitro %, compression, and glow plug heat range. It will advance itself further forward as it needs to.

[@AutoAddictionMedia]

Would it be an idea to put the carburators before the supercharger? That way the supercharger "sucks" the air/fuel mixture through the carburator, so you won't need to worry about backpressure etc.

[@johnnyq90]

Yeap, that's the draw through setup that I'm considering doing next ;)

[@jimmyschwarz9075]

You Here?

[@bigpig187]

Thats what he means at 11:13, it's called a draw through setup

[@random123name1]

As he said, the mixture leaning out is probably the result of the current carb setup. Whenever the supercharger delivers any kind of boost, only in high speeds, the pressure will reduce the fuel flow. And this is highly unlinear, exhaust backpressure could work but is hard to adjust. The only quick solution is carbs upstream of the charger.

[@ericmaulijr.2493]

With blow through you Need to add the Boost on the fuel pressure plus 0.3bar, there are special valves for it for real Cars. Problem will be finding them in this size. One Good side effect of the Draw through would be that the supercharger gets cooling/lubrication for longer runs. In This case This would be the way to go

[@NickEter]

Came here after seeing some dude installing a turbo on the same engine. Not just a compressor, but an actual turbo, and it kinda worked

[@DIZZYDAZZLER2011]

This is pure lockdown therapy watching these parts be produced in such micro detail.....Brilliant!

[@ARC-zj5ur]

And this folks, is the type of person who will help us get off this planet. Amazing!!!!

[@jordanpike9778]

I was today years old when i found out titanium can ignite!

[@rajinkajin7293]

All metals can burn, some with some very impressive results. Thermite and solid rocket motors use aluminum.

[@JonLinde]

Try with powdered magnesium.. And when you do, make sure to lave Lots of space around and keep a safe distance...

[@marioghioneto1275]

@@JonLinde and preferably don’t look at it

[@poptartmcjelly7054]

@@JonLinde even regular aluminum powder can burn, setting it off is not as easy but when it reaches that "supernova" point it glows incredibly bright with a very slow burn.

[@mattio79]

@@rajinkajin7293 And Iron Oxide I (rust powder).

[@bassdrop001]

JohnnyQ90's videos: _Peace and tranquility_ PocketNC: *BZZZZZZ BRRRRRR ZZZZZZZZ BZZZ*

[@jackradzelovage6961]

JohnnyQ90's videos: Peace and tranquility PocketNC: BZZZZZZ BRRRRRR ZZZZZZZZ BZZZ Running engines: PUHPUHPUPUHPUHPUHPUHBBBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAWWAAAWAAAAAWAAAAAAAWWWAAAAAAA

[@bdarmech]

Detroit diesel was at this step in the 50s. They addressed it by adding a turbo that was able to compliment the mechanical compression of the sc at increased exhaust pressures. The result was a increased performance across the board, but was later proved redundant. If your able, the history and evolution of the m113 and its variants would interest you. On a side note, I was there to see the changes and what was necessary to get the cummins triple nickle to over 600 hp, fielded in the m2/3, m3a3 variants back in 2001. Those modifications were only able because of the steps your taking. This is Awesome, rock on!

[@cronos51101]

You may want to add a pressure tap before and after the carb to measure static pressure. It's pretty easy to use some clear tubing to make a water monometer to operate at those pressures. You can do differential pressure too with that setup. Might help you determine boost issues at different RPM.

[@thoriso1000]

Finally we get to see what the supercharger will do 😭🥺

[@bradenclifton45]

Pro charger

[@Thatcressidaguy]

@@bradenclifton45 yeah everyone’s calling it a super charger 😂 it’s not a supercharger with 2 rotating rotors and 6 apex seals spinning off the crank shaft 😂, it’s not a turbo being drivin by exhaust preasure 😂, god damit hahahahaha

[@xenonram]

@@bradenclifton45 stop with that procharger nonsense. You're the second person I've seen on here correcting someone that said supercharged. This is a supercharger. Period. Procharger® is a brand name. That's like correcting someone who said tissue, and telling them it's Kleenex®.

[@xenonram]

@@Thatcressidaguy nope. It's called a centrifugal SUPERCHARGER. The Roots style supercharger isn't the only type of supercharger. Derp.

[@Thatcressidaguy]

@@xenonram shhiiiiut up malaka, pro charger

[@DoRC]

I would go draw through on the carburetor. you're going to save yourself a lot of trouble trying to deal with boost referencing the fuel pressure to the carburetors that way.

[@PredaFran]

Draw through ruins bearings and reduces power. It's never worth it.

[@DoRC]

@@PredaFran for this application I highly doubt either one of those are actually going to be an issue. If he was going to be putting 10,000 mi a year on it maybe but this is just a toy and an experiment.

[@TheBryce98]

@@PredaFran Is that a matter of the fuel stripping grease from the bearings? Because for nitro engines it wouldn't be as much of a concern, since the fuel is a total loss lubricant.

[@PredaFran]

@@TheBryce98 i forgot that he's running nitro with the engine, but yeah usually fuel washes the grease or dissolves it.

[@PredaFran]

@@DoRC eh imo if you want all the way to make a nice supercharger from scratch i would try to utilize it to the best of its potential

[@williamhorn4290]

omg finally we get to see this thing in action

[@adambetterley3808]

For real I've been waiting for so long! Looks great can't wait to see you push the limits

[@Calthecool]

That tiny flywheel puller is cool.

[@jmlewallen7]

Let's appreciate the time and effort to make this instead of criticizing.

[@andycoppes]

Titanium boggles my mind- I've known welders that worked with it and people use it at luminous temperature a lot. Cool to see it acted like a magnesium flare-up.

[@Gu1tarZer0]

right? I *am* a welder and I've never seen that before

[@andycoppes]

@@Gu1tarZer0 I think buddies said they were using a purge box. Thought about shielding gas for machining but not sure coolant is too messy. Just odd though, suppose the shavings are just like wood, splinters or thin spots will ignite with less effort.

[@Alpha_Mods]

*Μπράβο φίλε 👍* I would be very happy if you saw my vids and remembered your old compressor project 😀 In fact I was inspired by you, when I started my 3D printed supercharger project. I also made a plastic Turbocharger a couple of weeks ago (video will be available soon) and it even made some boost, 19mbar lol 😂 Just to save you some time: swap the 2 small carbs with a bigger one, make some coper piping for intake and exhaust, and a draw through setup. Works great. Good luck! Anthony. P.S. you can use a sphygmomanometer gauge to measure a small pressure. This is what I did..

[@GKendin]

Опа, какие люди)

[@sotiriospapastergiopoulos8582]

Έλληνας φίλε??

[@Kysok_Tashera]

спасибо, что даришь нам контент)))

[@romakarpyuk4865]

Здрассссс.. хотел написать спиздили у Alpha mods но он уже тут

[@hortismoregan2233]

Так и знал что ты тут будешь

[@averagecarguy420]

Super cool, this guy is amazing at machining. Been watching for a long time, super excited on the wankel updates!

[@elburropeligroso4689]

I hope he puts the Wankel in an RX-7 rc car

[@wolfkonig246]

Same, Im watching him for years, and I get excited for every video he uploaded.

[@BaoNguyen-un1km]

I agree and it also amazes me how much it costs for all this as well

[@Bird-dl7xs]

Just nonchalantly let’s us know he MADE the most badass little pro charger by himself!!. You sir are so much smarter than me and that’s why I like your videos.

[@Ichibuns]

At first, I was wondering how the exhaust in that little engine would be able to adequately spin the comparably massive turbine. Then I saw the belt and was like "ooooohhhhhhhh...supercharger. Like it says in the title." I see you improved the gearing in a later video. This is great stuff!

[@DerGeileEisbaer]

The supercharger FINALLY returns... i've honestly been waiting for this :D

[@1991apfel]

A simple way to messure the power is to add a Brake with a (weight) scale. With that and the RPM you can calculate the power....

[@drdavisrein]

Warped Perception has done this

[@workshop.wizardry]

Would be pretty difficult as the engines is super small and its al little harder to calucate the friction if the brake which is very important for this type of measurement... i would put a high efficient electric motor to it and put one after an other a electrical consumer to it untill it starves

[@adolfogracialavega8252]

Uk

[@InsideOfMyOwnMind]

@@workshop.wizardry So just use the 2nd motor as a brake, measure the current and Bob's your Auntie. Friction is effectively removed from the equation.

[@Cr125stin]

Could you run a generator off of the engine and measure how much power is generated?

[@ChamonixMatrix]

For power readings there are two options, 1st you could use a brake that can rotate around its axis and use a load cell or other scale to keep it from rotating the force from the load cell or scale can then be multiplied by the distance to the axis to get the torque. 2nd option is using the engine to rev up a flywheel with a known inertia. Measuring how fast the flywheel accelerates can then be calculated to the power being put in to the flywheel

[@johnk756]

That or have it spin a small motor (using it as a DC generator) and use a potentiometer to vary the load on it and measure power output.

[@nezh80]

Just found this channel and I can already see me spending quite a bit of time watching these videos…. I have an engineering background and served an apprenticeship… I am always fascinated and impressed with the things some people achieve just for fun and to see if they can! Bravo Sir 👌

[@FurryKeidran98]

Your original videos on the super charger are what got me into machining and mechanical engineering. It's crazy seeing your videos pop back up on my feed. Good to see you are doing well!

[@timn4481]

im a mechanical engineer (30 years and counting) and his videos made me angry. very little engineering and mostly machining. engineers make things for specific reasons.

[@rc4lifebnsf]

Pls make a roots style supercharger, like a 8-71 blower, that would be interesting to see miniatureized lol

[@CorruptInfinityOfficial]

Would be cool but probably not feasible, can’t make gears strong enough and small for it to be used as intended. Like what happened when this channel upgraded the gearbox on the last one it grenaded itself before even reaching its potential rpm; you gotta realize you are talking about moving parts the size of watch gears. Less then finger nail size

[@wyatte123]

Look up an Aisin AMR300. That's about as small as they get and still usable.

[@pawansaini8237]

@@wyatte123 l

[@jackmagnium6115]

@@CorruptInfinityOfficial i built something like that out of legos and not only it worked but grenaded my lego 4 speed :(

[@jackmagnium6115]

@@CorruptInfinityOfficial also check this video out. its my lego replica custom model running a small turbo from turbokyechains.com kzbin.info/www/bejne/omPYZ61shNyFe6M&ab_channel=TreasureDowning please use earbuds as my pcs mic isnt very good at picking up noise

[@PhilKawasaki]

I’d love to see more on how you get you dimension for your models in cad and how you manage to reference it all so it fits to how it should

[@stevendepascale8364]

Yea that’s what I was thinking first thing and access to machining tools

[@emds6819]

The 2 Rotor engine needs something like this

[@michaelpressman7203]

Your design ability and use of CNC equipment is phenomenal I am amazed have a great day thank you for everything

,,,,,Yes finally the return of the charger And happy new year to everyone reading this,,,,,,

[@MrSneakyGunz]

11:18 Build yourself a scale size Dynamometer Johnny. *That* , in itself, will make for terrific content my friend! Thanks as always for the entertainment.👍

[@kz6fittycent]

YES

[@joesolo9946]

Your machine tools are awesome at a super high level, appreciate everything you do.. Thanks.. 👍

[@benjaminmathon7417]

Great to see that you are experimenting with force induction again ;) To test the power output, why not use a brushless motor as a generator, a full bridge rectifier, and a serie of big resistor

[@Fix_It_Again_Tony]

This is my first through as well. Just need to properly calculate the losses in the diodes and in the motor. Then again if it is just A/B comparisons maybe the absolute power produced is not as important as relative difference. In other words have the changes made increased or reduced power output.

[@JonLinde]

Make a motor mount on a short length of rails. (20*20 alu v-slot extrusion?) Let the motor pull some propellers and use a load cell to measure the pressure the propellers can generate.

[@benjaminmathon7417]

@@JonLinde Good idea also, to get a simple power difference, but I think you meant traction instead of pressure.

[@ChamonixMatrix]

The efficiency of this system must be known to get a valid number. Without this u can mesure the difference between two versions of this engine but not compare it to other numbers

[@markusjordantesoro2992]

This is what we call Art a bright masterpiece.

[@rexfielder1545]

I think it's badass that u can make micro things like that. Cool as hell

[@nordishkiel5985]

Hi, awesome work! In order to measure power output, i would suggest driving a generator (permanent magnet dc motor). This allows to test the engine with a variable load, and to really measure net power output (volts x amps).

[@mikeiver]

My thought as well though I would use one of the 3phase motors as they are designed for much more power. I suspect that this motor will output a large amount of power for its size in the super charged configuration. Amazed at your projects!

[@jfseaman1]

Happy new year. Draw through carb, bigger pully. Mini hydraulic dyno.

[@SylpheedW]

I don't know how precise it would be but a miniature version of Warped Perceptions 3HP Dyno could work

[@sirfinn5753]

All the people hating on this video, cant and wont take the time to do this themselves. Awesome work

[@ayxanmusayev832]

this is super dope man congratulations

[@jaredsmith-bove4264]

It sounds like its leaning out, you could try running manifold pressure into the fuel tank and riching up the fuel mixture

[@FaultyMusic]

this exactly, needs to have boost feeding the fuel tank not exhaust, that way the carbs will be back to their atmospheric pressure tuning

[@kleetus92]

@@FaultyMusic No, you need more than just boost, other wise the carb, tank, and manifold are in equilibrium pressure... how's fuel supposed to flow like that. You could absolutely use manifold pressure for an external say electric fuel pump to bias the fuel pressure, but without an external pump it's useless. This needs to be a draw through setup.

[@gadgetdeez7069]

In order for that to work, you'd need 2 check valves with very low forward pressure. One tied into exhaust and one tied into the intake and y'd into the tank. The intake wont provide pressure at idle like exhaust will, and if the sc were to work, the exhaust wont provide the pressure that the boost can. Still sounds like irratic tank pressure to me tho.

[@dabbyduck517]

Warped Perception had a pretty sweet setup for testing his turbo's engines, I don't know if it would scale down politely tho

[@CMBProjects]

Amazing!! Johnny you would like to see my homemade 1/5 49cc RC car!

[@alexanderthorbrugge6489]

Hey i subscribed

[@CMBProjects]

@@alexanderthorbrugge6489 thanks man :D

[@leemilica]

Cool car!

[@m4d_mark_xtr3me79]

Everyone with draw through intake... The problem with that is the fuel can: A. Contaminate the impeller housing. B. Add a brake to the amount of speed you can put on it so it requires more load to get more boost. C. Any part of the carb that fails gets sucked straight into the turbine/ impeller. Best having a blow through design because the venturi effect on the carb will add more fuel anyways 👍 Also you can spin up the turbine better. Downside is heat soak, the mixture won't cool it down so you may need to use a water cooled airbox on a taxing system. But blow through is far superior to draw through for most applications 👍

[@yondel-kttkoh3948]

If you could make this, you could make anything. Great job!

[@tobok7]

That engine would be amazing in rc car👍

[@AutoAeroplanes]

Yars it would

[@deavenferrett8642]

To measure the power. Make a heavy flywheel and measure the amount of time it takes to get to a set rpm.

[@danilolattaro]

Agree on the inertia dyno!

[@freyja4954]

Problem with this idea is that you can calculate average but not peak.

[@deavenferrett8642]

@@freyja4954 true. Another option is to run a generater and add load until it stalls. The peak wattage would be your power.

[@danilolattaro]

@@freyja4954 it's possible to calculate the torque by the speed transient

[@DiS1267]

The Alpha Mod and Johnny Q90 collaboration коллаб альфа модс и джонни Q90

[@DiS1267]

@@ruchey да он в 30 минутах живет

[@allenszykula8071]

Seeing these rc engines being taken to this level is awesome.

[@003nattaradonjuajun4]

Toyan: *Make a Mini engine* JohnnyQ90: Ima end this man whole career

[@thevanillathriller2564]

Try a velocity stack for the feed into the compressor wheel it may be getting starved at high rpm

[@_sxmurxi_6015]

I don't know about all of you but I'm just here for SHATATATATA

[@themobileguy7303]

Hahahaha 😂

[@kenshinhimura2008]

shatatata

[@WalnutandSteel]

Think the fuel pump pressure is too low once the engine reaches peak RPM’s? Just a thought. Nice work as usual!

[@jpabon18]

The venturi effect from the negative pressure (vacuum) should be able to pull plenty enough fuel to feed that little guy... at least imho 😉

[@spencertaylorcrowe]

Something about these videos brings me peace within my soul lol.

[@woodgrain18]

I wish I had a quarter of this mans machining skills and knowledge!!

[@judgejimbobrowntown7600]

Need more fuel somehow on the top end leaning out on you brother

[@TheAnoniemo]

Make a miniature engine dyno based on an electric motor and variable load!

[@jttech44]

Electric motor turned genset, and find the output wattage with and without the supercharger installed. Should be simple enough to do because you're really just after how much it changes, not really a precise number.

[@yayo4478]

THE REASON ITS BREAKING UP TOP WAS BECAUSE YOU DIDNT HAVE A MINI LAPTOP TO TUNE IT

[@calyfornykid]

Nice you looks like you know what you are doing trial and error is what it's all about, you are the man.

[@adamramirez7626]

Amazing! I am blown away by the possibilities of modern technology.

[@kilianmuenscher5616]

Try and build a roots supercharger dor on of those small engines

[@justpauls]

A you tuber “warped perception “ came up with a reasonable engine torque measurement device. Check it out.

[@mattio79]

The scale is... a bit big...

[@doctordonutdude]

Yeah, he actually comments sometimes. Lol.

[@WarpedYT]

@@doctordonutdude well I did make a smaller one, I just never used it in the videos

[@RelianceIndustriesLtd]

@@WarpedYT he called you "a" youtuber !! thats insulting

[@justpauls]

@@mattio79 Yes that's true but Johnny can figure out how to scale it to his engines.

[@rileybaldwin4906]

Thats a turbocharger

[@rileybaldwin4906]

Atleast where i live

[@WestOzRC]

@Riley Baldwin aaahhh no it is not. A supercharger is driven by the crankshaft of an engine, usually connected with a belt, therefore requires engine power to run, while a turbocharger runs off exhaust gases created by the engine. You've been learned. :)

[@Dmn0PT]

@@WestOzRC yup 100% true

[@speedbitgaming4124]

@@Dmn0PT yep

[@rileybaldwin4906]

@@WestOzRC ohh i didn't know that lol is also funny because im doing school work rn im learning 2 ways rn

[@zacc412]

bro your videos are the shit. i watch and have watched your content for a long time, and it’s always the exact type of shit i want to see. i love the work you put into it and i love your content, it’s so interesting and well filmed and i’m always so happy to see you post another video. i look forward to seeing what you end up doing with the supercharger man

[@levince9315]

That’s the cutest turbo i have ever seen.

[@johnhickman3232]

*supercharger

[@geepeet]

I would love to see a measurement of horsepower: 1. without turbo & 2x carbs ; 2. with the current turbo &2x carbs ; 3. without turbo & single carb (once built) ; 4. with turbo & single carb + whatever other scenarios you build for it. Love the content.

[@Flumphinator]

@2:36 Johnny, we keep telling you, if you need a bathroom break, it's ok. You're still on the clock, just go do what you have to do. We all know the white monster goes right through you.

[@warrior13shadows]

I think this is one of the best videos I’ve ever seen, that machining of the parts and the functionality is just so impressive this made my evening 😊thank for sharing that video!!!!!

[@w01f9ack8]

People dont realize that their full size engines would idle way higher if there was no ecu/carb/limiters.. good work man im about to try to make a mini 2jz chainsaw

[@petermoller4610]

At my previous company (Bosch) we experimented with miniature turbo compressors. They were idling at 50'000 RPM.. And developed boost at 125'000 to 150'000 RPM. You can miniaturize everything, except physics. Those tiny blades need to spin very fast to do any work.

[@CJ-ty8sv]

even that is slow. Many full size medium frame automotive turbo's these days are typically in the 100K to 130k range when sized properly for the engine. Smaller frame units are often in the 125k to 175k RPM range and can be as high as 200K+ RPM. For example, I have a pair of Garret GT2052's on a small V6 engine that at full boost and Max engine rpm are topping out at about 172k RPM compressor speed. Garret rates these at a max RPM of 195K RPM.

[@petermoller4610]

@@CJ-ty8sv At Bosch we were developing a micro turbine for use in refrigeration system. It was designed to work with R134a, this refrigerant have a significant higher density than air, and that is the reason for the lower RPM. A micro turbine for compressing air, is probably impossible, due to physics. The turbine we developrd was running on elctricity using a PAM motor instead the the usual PWM, which is a separate problem. For bearings we had air bearings, since it was the only solution that provided friction that was low ehough. Starting and stopping a turbine on air bearings is a separate science again.... The stopping block was the "surge line", to get efficiency you have to be as close as possible, but cross it and your turbine is scrap instantly. That part we never solved, so project was cancelled.

[@CJ-ty8sv]

@@petermoller4610 Interesting... I never would have thought that a centrifugal / turbine type compressor to be a viable option for any type of closed loop system like that of a refrigeration system because of the exact problem you mentioned (keeping the compressor for crossing into surge region of gas flow). That does make a lot of sense now for the "seemingly low RPM's", knowing that it was R134a that you were working with with its 3.5x greater density over air. Definitely would have been quite the feat to get the system to work reliably, that's for sure.

[@757streetspeed8]

That’s awesome excellent execution, sounds like she needs more fuel the air to fuel ratio is super lean at higher RPMs due to increased air flow from the centrifugal supercharged. That will eliminate the break up in RPMs at WOT. Good luck and would love to see another video on this.

[@MostBeautifullest]

Did you know that a turbocharger is actually a centrifugal supercharger? 😳

[@brsrc759]

That fireball with the titanium was awesome!

[@billfletcher5495]

You are a talented engineer and fabricator.

[@tomh6784]

I don't know much about what your doing but very impressive and cool mechanical skills! Thanks.

[@gadgetdeez7069]

For a dyno, you can do this a couple ways.. you need a load cell for starters. Size appropriately to expectations. Then you can either machine a waterbrake. OR, get a good ole brushed motor and couple it to the crank of the engine. Attach your load cell and either a suitable rheostat or adjustable carbon pyle load and start shorting the motor to increase load. You also need RPM reading to calculate hp. It's a pretty simple thing to make a dyno brake. There are so many ways. Hell, if you made a belt driven copper platter and put some neodymium magnets near it, you could even use eddy current to brake it like trolly cars do. Closer the magnets get, the more brake you get.

[@rcclassiccrawlers4368]

Wow! That is so awesome! Heck of a nice job building all those parts. Thanks for sharing.

[@carlseiz1266]

I'm amazed at this little thing has a turbo it's crazy

[@alexwolfsburg9182]

Hey man i know it's not a turbo, but it looks like it is a turbo, but i thank u for showing de work you've made bro, congratulations, keep on rolling.

[@casemodder89]

I was modeling with 3,5ccm off road cars (mostly picco, rb and os speed engines) for years and i'm pretty sure the engine runs rich in lower rpm's but leans out in the top end as the forced induction produces boost. So lean it a bit in the lower end (small needle screw in the carb) and richen it up a bit in the upper end (big screw where the fuel nipple is located)

[@vinazbro]

Next video running the engine on my enemies blood 😂 Awesome work man 😎

[@iansrving]

You should actually try your hand at making a true turbocharger. The RC world would go nuts for it.

[@entzbrazy8055]

I wish this had a full exhaust system and was inside a rc scale crawler our drift car!!💯💯💯 thanks for making this video bro

[@josephrenil707]

go on bro its awsome!! and do check its power after all and do a video on making a really supercharged rc car with everything u can add!!🤩🤩

[@peterherrington3300]

I have a centrifugal supercharger (rotrex) on my 1340 cc twin cam 16 valve motorcycle and found your micro version fascinating. Love a charger 👍

[@wesleycrawford6339]

First off, I'm amazed at your knowledge and ability to create everything from scratch. Wow!! How'd you get started and what tools/machines do you use? I've been into R/C cars since the mid 80's and am blown away at your creations.

[@saifi1124]

Kitne ka mile ga ye

[@cuppie2112]

The valves are probably starting to float also I couldn't imagine the flow characteristics of the valves is very great

[@gilwilliams9036]

I used similar tachometer in my garden tractor engines. I think they are pretty darn accurate

[@ka3ypu]

I have no doubt with your engineering skill. Amazing!

[@isaacpierna2462]

Its crazy that these are micro and still working

[@trenthice8400]

And some says "if you can't fit your whole fist through the turbo, then it's not big enough"

[@Nitro_rc_life]

That was the coolest thing I've ever seen your f*cking awesome man good work

[@bigheverly]

I wanna see the fly swatting contraption he’s made to keep all the snizz off his bird 😍

[@RydogGaming2002]

This issues with it breaking up at high rpm can likely be fixed with a fuel pressure regulator, so that the fuel pressure stays the same relative to the boost pressure

[@S13Reborn]

10:30 You're wrong, I have only praise for you. Thanks for sharing your work.

[@scottishlyscubaru145]

Keep it up bro, no limit to innovation. I’d like to see more.