SUPERCHARGER Installation on RC V8 Car and TEST!

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[@jjpark98]

The fact that even at a significantly smaller scale, you can still hear that supercharger whine is amazing!

[@लवकुशराजपूत-ढ4झ]

भाई यह कितने की गाड़ी है मुझे चाहिए

[@harjinatorconstipator8732]

@@लवकुशराजपूत-ढ4झ Bhai engine alone is 1000 dollar US. The rest of the car is made by himself.

[@saad7044]

@@लवकुशराजपूत-ढ4झ teri aukat nahi hai rehne de tu

[@TheHighborn]

not to mention it's a pretty basic/ rudimentary blower

[@Diesr]

he should make an agressive cam for that dragstar wraaaaaaaa

[@damianpogu7272]

Every single time I see a mini V-8 engine on KZbin I always think when is somebody gonna put that on an RC car. Thank you fulfilling my KZbin V8 RC car fantasy

[@LisaAnn777]

Id put one in a mad max looking rc car lol

[@tommjonn]

Introducing the hellkitten?

[@digitalarslan1778]

Underrated

[@nicholasselvaggi54]

😁😁😁

[@sheneedsyrruup]

I love the Hellcat name so much because of jokes like this, the name is unforgettable.

[@jdburge17]

🤣😅😂💪

[@timwilke16]

No

[@frankaudi00]

Dont give up, the advice everyone is giving is spot on, i got nothing to add, when you get the air fuel n timing right it will all be worth it

[@afellowinnewengland6142]

I'm a retired automotive technician so take my advice with a grain of salt. When you install something forcing significantly more air into the engine (Supercharger) you immediately need to recalibrate jetting (or injector tune) to increase fuel delivery- especially on the upper half of the rev range. Bogging on combustion engines is a symptom of fuel starvation. Increase fuel delivery incrementally until the bog goes away. Your goal should be to run slightly rich to keep temperatures down and ensure you won't damage the engine. The other thing to think about is the ignition timing which needs to be recalibrated slightly for forced induction. You may need to advance it a touch. Good luck. FYI- a very cool little engine. I wish we had things like this when I was a kid.

[@ThePower1037]

The only thing I would add to that is since the oiling system in this engine is the fuel, I'd all a little bit more oil into the methanol to keep temps low, also the timing will be hard to adjust, because the glow plugs at boost tend to overheat and pre-ignite.

[@MidMadn]

Seeing that it is a glow plug engine - I don't think the timing can be altered.

[@ThePower1037]

@@MidMadn Glow plug "temperature" can be used as a robust way to adjust timing on a nitro engine.

[@hillbillybozocatfishing884]

I thought I was hearing something not right , after reading what you said , I was right with what I was hearing. . . 👍

[@fowlplayoutdoors68]

I heard the bog as well in the intro. Was surprised about what seemed slightly poor throttle response. Generally, I expect a well tuned roots setup to be pretty snappy. But, you do have it backwards on the timing. When you compress the intake charge with a supercharger, or turbocharger, the molecules in the intake charge are closer together and this causes combustion to happen faster. Therefore, you need to retard timing from what it would have been naturally aspirated to prevent detonation. The same is true with nitros, which some would call CHEMICAL supercharging.

[@sirlansirlan7167]

@donutmedia this guy knows how to start it

[@Missed_Apex_GT]

It’s going lean at high RPM mate….add more carbs,fuel and air otherwise it’ll run super hot…great video ❤️❤️❤️ adding boost means the engine will need to flow nearly double what it is now…I’ve built real engines with high boost,maybe look at increasing port size and or bigger valves…you got this bud love your work ❤️❤️

[@paulterhaar4862]

Agreed, definitely needs more fuel.

[@Missed_Apex_GT]

@@paulterhaar4862absolutely my friend

[@Talent_ndeso]

Kelihatanya anda sangat berpengalaman

[@dlaw1954]

In bigger engines, bogging down at high RPM usually means too much fuel, doesn't it? Unless everything is getting too hot and it's expanding, causing internal friction? The exhaust looks pretty rich to me, too, but I'm not real familiar with nitro/gas RC cars either, certainly not anything in this caliber.

[@YZ-YZ-]

Likely too much friction at high rpm that the engine struggles to overcome. The blower is probably producing little (if any) added power, while contributing to parasitic losses and heat.

[@andrew-stv1777]

Now we live in era when rc car can sound better than an actual car. What a nicely done job! The sound is everything!😤😤😤🔥🔥🔥

[@ryanryan3473]

DUDE! I have never heard a better sound out of a miniature super…good job!

[@cenreaper9127]

I never saw a miniature super

[@ryanryan3473]

You’ve never seen one before this video?

[@cenreaper9127]

@@ryanryan3473 Nope.

[@gagepuffinbarger6939]

@@cenreaper9127 I've seen small engine compilations, and some have the supercharger, but I'm not sure if they are actually forcing air, or if they're just for show

[@bill-nj6fc]

yeah ok

[@cestmoimmortel_dheeraj]

Bro, that supercharger looks like WALL-E when you look it for the first time.

[@Zoltec-q1g]

Everytime you open the throttle it sounds like the supercharger is shouting „VRRROOOÖÖÖMM“ 😂😂😂

[@sergep1971]

You mean it have a swedish accent?

[@janne65olsson]

@@sergep1971 I am from Sweden. And yes.. but no. 😁🤣😎👍

[@quadmechanic2896]

I saw a video where the intake valves were ported and it made a huge difference. Im convinced that if you did something similar combined with the blower and good fuel pressure the top end would come alive

[@FifiToJaITylkoJa]

With more air, you need more fuel. Try building a pump and pressure gauge that will give you the right amount of fuel depending on the pressure.

[@bradleyward285]

You can have more pump all day but if the carb jetting isn't big enough it will never get the fuel it needs

[@billynomates920]

@sourand jaded thanks for your comment. rather more detailed than mine would have been (even could have been) i just liked the whoop whoop sound of the miniature supercharger! 😃

[@jsmith1871]

​@@sourandjaded2586the fueling is still an issue beyond just winding the needles out. Traditional automotive carbs suffer in supercharger setups as the vacuum of the blower prevents the power valve from opening under WOT, this is due to it being actuated as the engine vacuum decreases while the supercharger increases carb vacuum as it spins. These hobby carbs don't have any of the circuitry required to properly fuel this application or make use of boost reference and winded needles will just muddy the throttle resolution elsewhere. How does forced induction increase your compression ratio? The comp ratio is set by the material properties of the engine components. Do you mean volumetric efficiency? If so it's directly benefitted by forced induction. A thicker head gasket can reduce the compression ratio which can assist in avoiding detonation. Forced induction enhances your volumetric efficiency provided you can adequately fuel the application. Literally everything hinges on the carbs.

[@kleetus92]

@sourand jaded Only thing I can think of is the carbs aren't designed for that much airflow and are going lean, or, the 2 to 1 feeder can't supply the fuel, might need a separate one for each. You wouldn't think it would need that much here, but who knows. Other thing is might need different glow plugs, might be blowin these ones out.

[@thunderdick6117]

It's not a fuel issue it's an air flow issue. The reason you can hear such an audible whine is due to back pressure in the blower case from the blower being so restricted . They made it like that on purpose and the two very small outlets from the blower are clear evidence of that . This blower was made for sound not performance . That's the reason it's bogging it's not getting enough air you can hear that the blower makes less noise at high rpm because the vacuum from the engine is effecting the back pressure in the blower it's being lowered because the engine is trying so hard to get air . If the air outlets were bigger it would breathe better but you wouldn't get the cool blower whine .

[@Tywild327]

I was NOT expecting that much of a dramatic supercharger whine

[@hellaxjdm]

No this is badass, it sounds so good

[@JazzbLu]

Very cool to have a supercharger on a mini V-8! After you get it tuned, dyno numbers please! Keep up the awesome work!

[@pootmahgoots8482]

You need to increase the amount of fuel coming into the carbs to compensate for the increased amount of air coming in from the supercharger. Really cool setup. I am looking to get some of these engines to build and put on display. :)

[@lbj4796]

What is the adress internet site for these engine please?

[@whitehuayra]

​@lbj in the description

[@thatgingar8765]

Definitely think it’s an issue of tuning, getting a lot more airflow than it was before so it’s running lean, I’m definitely interested in seeing once you have it situated what sort of power it gained from the boost

[@shanesmith4658]

Nice work.. but you need to add boosted air pressure on top of the fuel to increase the delivery relative to the boost increase.. should stop it from starving in higher revs.👍

[@NZHorizones]

Couldn't have asked for a better sound than that, very impressive!

[@Tele-gram_me_johnnyq90s]

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[@gxplore]

The internet was made for this ❤

[@ayuse01]

It runs lean on WOT, we can see the fuel stopping to circulate in the line at WOT, the carbs are not designed to be fed high pressure air from the supercharger is my guess. Awesome work. The sound is so nice.

[@JshDav]

It's a draw through set up, the supercharger is actually sucking air (and fuel) out of the carbs and the pushing it into the engine, I suspect it's actually running rich up top due to the suction from the supercharger pulling too much fuel through, it has more of a rich bog sound to it

[@ayuse01]

@@JshDav But i saw the fuel stopping to flow in the clear tube at high rpm. Also try to elevate your fuel tank.

[@buggerlugz6753]

Needs a lawnmower carb!

[@itsme7294]

It's going to be one of the most amazing rc cars I have ever seen and I raced them for years the bug catcher makes it look amazing great job so far on your build I'm sure you will figure out the fuel problem

[@harrywhite1002]

Sounds like the mixture is leaning out too much, so you definitely need to add more fuel. Maybe extend one of the existing pulleys outward, and then you can make your own supercharger gearing? Definitely excited to see where this goes. I remember seeing some 'turbo' keychains which were sealed, so maybe you could have a look at twincharging it? Just a thought :p

[@JSxxxxxxx]

Seems like there is a great deal of friction in the supercharger itself also - maybe some bearings or self lubricating bushings?

[@camaroboy383]

Have to love the sound of a roots style blower ..😎

[@bartbullock9742]

The shell magnet is correct, you do want to be on the rich side, it just helps keep things wetter you might say

[@frankierzucekjr]

I definitely think you should keep the super charger and make this look like an old-school 60s/70s style car. Like a Cuda, Chevell, Road Runner, Camero, etc. Or even a hot rod. This is soo cool, you'll get it figured out. I think the glow plugs can't keep up with the upgrade. Or it just needs some tuning. Either way, good luck bud, I can't wait to see what you make out of this. I wish they had these when I was big into RC. Lol. But I also don't have the knowledge that you have lol.

[@Petequinn741]

Actually in an rc car. Bravo, well done sir

[@ahmetbirinci7768]

You can watch keith57000's v10 engine build compilation to see a nicely built supercharger which isnt straight. Also to mention his v10 engine also struggles in full throthle. I figured it can be related to supercharger after you experienced the same problem. NICE video. Please keep up the good work!

[@MRMechanicRC]

Man has created the mini hellephant

[@LeytonC]

Would love to see the before and after a full tune power and torque difference. Would be nice to see how much boost its creating through the rev range.

[@mikethompson9745]

What's not to love about a supercharger of any size? Are you planning to replace the water pump shaft with a idler style? Not that it would make a lot of difference in the early going but the gear side of shaft against the smooth belt can cause a wild amount of drag in some cases. lots of fun watching , Thanks

[@7795Dakota]

Please don't give up on this!! Your videos are awesome!! You skills are even better!! As many have stated you need more fuel. You can't add one without the other. Porting and bigger valves, Maybe even bigger cam with more duration and lift and/or lighter rotaing assembly would make her super snappie. With the tools you have all could be easily accomplished!!! I'm a turbo guy myself but this is pretty sweet. Excited to see whats next!! 👀

[@jonathans.972]

An intercooler below the supercharger would be sick.

[@oliverscorsim]

I really wanna see that Dyno brought out for this na, and out of the box supercharged, then I wanna see you millout the top of that blower and make your own intake plate with 4 big carbs. This things lean up top and blowers generally need a 1.5-3:1 intake to outlet ratio. You might get two carbs to flow the fuel if you drill the bore for the needle valve and anyother restriction in the fuel.

[@oliverscorsim]

I don't think the belt has anything to do with it running badly either. Iv built lots of fast big stuff including a tiny compound turbo 155cc near 100whp. I don't think the belts the best but I don't think it's the big problem it's definitely lean.

[@BLECHHAUS]

the cutest Roots-blower I ever saw :-)

[@vermillion.__-_.]

That's amazing! it actually sounds like a real supercharged V8, for such a small thing

[@Demoni696]

Really cool build! Regarding the issues with WOT performance, there are a few things from the (big) car world that might help: Spark plug gap - When you up the boost level you normally need to close down the spark plug gap to get effective combustion. Not sure how this would work with glow plugs, do they make them with bigger or hotter elements? Also boosted motors normally run less timing advance vs NA motors, since glow plugs are always you can't adjust this but I think you would get similar results by adjusting the octane of the fuel. It's a bummer they made the pully on the supercharger so small, would have been a easy way to get more boost. You could create an additional gear box between the belt and the supercharger, to give you more ratios to play with. CNC project time!

[@UnitSe7en]

Yep, glow plugs come in different temperatures. High compression engines need hotter plugs usually.

[@MysteriousToe]

Hey, try having the throttle body on the supercharger open in the opposite direction, as in instead of the top portion opening out, have the top portion opening inward. That’s how throttle body’s normally work for a blower style supercharger works. Just a thought and I really hope your able to read this comment.

[@bbd121]

Wait, is this the same one that Nolan from Donut Media is trying to build?

[@stevenboswell4524]

The bog seems to be rpm related, not just throttle position. Which indicates fuel starvation. With a full scale engine, this is fixed by adding a boost referenced fuel pressure regulator. This raises fuel pressure to increase fuel delivery as boost increases. Otherwise, the carbs will be either overly rich at low boost/part throttle, or overly lean at higher boost/full throttle/high rpm. Either one causes a bog. The trick is, applying that to this small scale version. The creator was smart and talented enough to build this incredible engine, I dare say he already knows everything I just typed, but applying it brings up all sorts of issues and requires quite a bit of knowledge. I'm sure the creator will end up getting it tuned right and I can't wait to see the final product!

[@adammorris3082]

WOW! That sounded truly awesome - I think some electronic engine management, tiny injectors (If they can be made or bought) and a pressurised fuel rail could be a good next step if it can all fit in the rc car.. what scale is it? 1/5th? Keep up the good entertaining work that you do. All the best from the UK.

[@j.christie2594]

Agree, but I would love to see how that Boost's on "HHO" the skill this guy has, he could make Tiny Electrolysis device, see how that Boost's. I love to see all his YT Project's, great maker, think all his builds are great. Running on HHO, would be super cool.

[@spike238]

Johnny ... speak ,, move lips .. make sounds ,, practice , these silent picture book videos deserve so much more !

[@flyhigh6591]

Coolest video on KZbin. Yeah it's definitely running to lean. The little 3.3 nitro engine I had when it was running lean it will cut out like that. If you can open it up produce more fuel, you will see a massive improvement. Plus it also could be pulley system isn't the right diameter to feed the fuel/ air to the engine that's required for an improvement over N/A

[@JumbleDrops]

Dude that thing sounds amazing, im so glad to see it working like that

[@Tele-gram_me_johnnyq90s]

👆Thanks for watching ❣️ 👆I really appreciate, message me above 👆👆👆to receive gifts 🎁 Congratulations 🎉🎊..

[@andrewheck148]

dude you need to help donut media!!!!!!

[@paul8161]

Papa Smurfs GONNA love driving that bad boy. 😎🙄

[@Zakatak360]

The fact that it shakes the RC's body when revving is nuts

[@ChaosWolfJoe]

This is awesome. I love it. I also love the engine sounding like a man screaming when revved up.

[@ryotaroshimada8311]

what if bro adds a turbo 🗿

[@TheCymbalProject]

Are you f__king kidding me !!!??? that is legit blown V8 tone / pace.... amazing work!!

[@xxAlexanderTheGreatx]

I feel like the next step for Johnny90 is to build a life sized rc car lol

[@mathiasosonhador1516]

dude, this is amazing! please continue the saga to make this RC.

[@user-Sucio]

Wow I have been on a 16year vacation you are really inspiring

[@miniz33]

The supercharger made my soul happy! This would make a great pencil sharpener, or handheld toiler paper butt buffer!

[@Tele-gram_me_johnnyq90s]

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[@leeholden8112]

I have a single cylinder nitro engine it rips. This is a cool build!

[@robertmcfadyen9156]

I have an automotive engineer scrutineering your videos and has been for some time out of his own interest . He specialises in motorcycles .

[@1234Tubie]

I used to like almost anything turbo charged like the Nissan 300ZX TT up to the 1996 model year. After I sat in a NA V10 Huracan and revved it up, I now own a verde mantis one!

[@Tele-gram_me_johnnyq90s]

👆Thanks for watching ❣️ 👆I really appreciate, message me above 👆👆👆to receive gifts 🎁 Congratulations 🎉🎊⬆️⬆️

[@g60-grandpa]

Good to see you figured out the overfueling issue.

[@kujiniseverywhere]

bro i thought my ears were ringing bc i have earphones but great video man ❤️❤️

[@chrisnizer5702]

I agree with you. That belt drive seems like it peaks out prior to full throttle. It's not starved of fuel, it's got too much fuel at full throttle because the belt drive system has reached its peak and can't keep up. The drive pulley on the supercharger is very small, maybe a little too small.

[@Jake-nb2ts]

That mini supercharger whine is great 👍

[@brianjustus89]

This is one of the coolest things I think I've ever seen. Awesome

[@traviscurlutu7723]

Dude got some insane skills

[@MANDOXsquid]

such crazy advanced small scale builds, its quite incredible

[@austinkreller4336]

Turn the high speed needle out 1/2 turn on both carbs and try again, it just needs some tweaking on the high needle. Your almost there!

[@johnconrad5487]

work of art! would have been nice if we could see the car running.

[@fvingerhoed]

I am just amazed at the craftsmanship 😊

[@PatrickPromodels]

in the 1990's there was a 20cc 4 stroke OS engine with Supercharger. that one worked really well. I used to have that engine in my F3A competition airplane

[@Braveheart7914-idfl]

Superchargers are the most awesome sound 👍🏻👏👏

[@michaelatkin9649]

That setup is a great way to blow up your supercharger when the engine decides to backfire

[@STREETCARCULTURE]

You need to tune it! you have installed the same carbs with the same tune that it was runnung n/a now on top of the blower. It's adding all that extra air (boost) but you haven't touched fueling. it will be running lean! once you sort that out you'll be happy you added the blower 💪

[@bishopdredd5349]

Appreciated the supercharger air blowing demo

[@rigididiot]

I have this engine, and I can tell that without fixing the issues with the mixture distribution (way too narrow channels and wrong cylinder grouping per carb), boost is going to be nothing more than a work-around. My careful estimate is that fixing the intake issues will liberate at the very least the same, if not MORE power, than will fitting the Rootes Blower on the existing manifold. As the engine is, the cylinders are grouped spacially: Front four on one carb and rear four on the other. This leads to 3 cylinders drawing air near simultaneously (within 270 degrees of crankrotation, leading to two units inducing at the same time=interference between cylinders) while the last one of the group can draw without interference. Correct crouping should be "most forward and most rearward unit of one bank together with middle 2 units of the other bank" and vice versa. That will lead to evenly spaced induction strokes (one induction per 180 degrees of crank for each carb). That will result in all cylinders being charged equally. Wider channels to each cylinder will also help, because right now the branches in the distributer are narrower than the porting in the head (restrictive, but also loss of velocity, de-atomizing).

[@c-bass24]

Am i the inly one but that supercharger spunds like it’s legit saving vrooom vrooom

[@jjspath]

i have watched this guy for years and every video of this engine i think it is the last of it then he makes it better he never disappoints me to amaze me

[@hjl4004]

Amazing! Very nice little engine that you'll probably get more and more out of. Can't wait! Good luck👍

[@technobladeneverdies007]

We have normal rc cars and we have this guy

[@yohanathandowns9057]

Did I see air bubbles in the fuel line? That will give you fuel pressure problems all day. Definitely lean on the top end, that hanging throttle is a dead giveaway. Sounds so good. Always impressed with your builds

[@AF-bv7tb]

Just listen to that whine...! The hobby has come such a long way in just the pass few years.

[@Tele-gram_me_johnnyq90s]

👆👆Thanks for watching ❣️ 👆I really appreciate, message me above 👆👆👆to receive gifts 🎁 Congratulations 🎉🎊..

[@jacobstone3308]

The supercharger is trying to force air through the same size ports as it did when it was naturally aspirated. Open up the intake ports to allow the air to flow into the cylinder without restriction. Amazing build and great video, hope to see update.

[@plasticjesus666]

I see a Starter in the Valley, like a Cadi NorthStar motor!

[@rustytanks]

I think that little motor pushes more power than my Toyota Ayga 🤣👌

[@SupraBdub]

All the Boost Bois in here saying, More fuel Johnny ! 🙏🏻❤️🌬️

[@donaldsudnick2003]

That is just plain Badass!!

[@borgonianevolution]

Sounds almost like it is starving for air when you open the throttle like the butterfly setup is too small and restricting the airflow. Fuel seems like it is set right as the smoke doesn't really change when you cycle rpm range. You can definitely hear the whine and how much air it is trying to move. You might have to port the heads to make it work properly with that system as well. All in all the work you do amazes me every time I check in to see what you are doing.

[@daviddeaton8430]

When running a screw blower that engine is going to need tons of fuel, it sounds like it’s running way too lean to me, the way it wants to fall on its face at higher RPM’s, those little kit motors are really not designed to run at high RPM’s for any length of time anyway. But I guarantee if you fatten up the full mixture it would run a lot better. I would look into some bigger CFM carburetors for it if were me. Good luck with it .

[@600wheel]

I would love to see a boost gauge on that somewhere to see if it’s actually making power or just making noise

[@scubasteve9715]

You need to help Donut with their tiny v8 now!

[@laymanengineer7502]

Man! that charger sounds sooo freakng good! definitely fuel starved on the top end. on a full sized engine you would re-jet bigger but on this, maybe the siphon feed isn't enough? maybe a pump/fuel loop system like fuel injection? or some type of pulse pump linked to boost pressure? Also with boost on a full sized engine, you would advance the timing a bit with boost. I'm thinking that may be a tuning option here as well. I genuinely want to see the charger work on this build..

[@53rdcards]

With that sound, you need to change the supercharger to have a diamond shaped opening, and put a modified GT Falcon painted black as its body

[@IrishMike22]

Just found your channel and I'm hooked already. Thanks for the great content mate 👊

[@8bitfrenzy376]

An RC mad max interceptor or a hellcat would be pretty cool with this!

[@KIDPRO2006]

You should put that engine model on a rc muscle car specifically a 60-90's charger and the turbo engine model on the supra mk4

[@tyroniousyrownshoolacez2347]

Nicely done 👉🤜. Thanks for sharing!

[@mickden3155]

Youl make Big Daddy Don Garlits jealous of that one 😂👍cool motor

[@starlord3298]

Cool Toy! I only had a cox pt - 19 Thanks for sharing.

[@rayshutsa6690]

For a miniature engine it sounds awesome with a super charger. Great job so far can't wait for more video's. ❤🇨🇦

[@TheUsmc0802]

Sounds like a miniature version of my Hellcat!