Johnny, you should mill out some 1 piece rotors for that blower and open up the ports so it actually flows air.

It stalls sideways because the wheels have stopped turning ! It’s lost its forward momentum, at low rpm you have practically no torque available from the motor, it’s not a diesel engine & you have a huge flat spot in the power.

You need to ensure the fuel tank remains pressurised by feeding exhaust pressure into it. this way, fuel is always forced into the engine.

The sound never gets old, and hearing it on a moving chassis outside is just fricken amazing

A heavier flywheel may help with the shutoff problem.

That is becoming some serious automotive design, i mean that colling and exhaust, you grow my man!

That clicking sound made EVERY car guy wince. Anytime something mechanical makes that noise it's normally not a good thing.

The effort and determination of this guy is insane. Every time I see one of your video's in my for you page I don't even hesitate to click on them. I am proud to be one of your 1.87M subscribers!

I have dreamed of seeing a V8 RC car since I was like six thank you for making this I couldn’t stop smiling

If you think it’s fuel sloshing make baffles in the tank to reduce the liquid movement. And also the low rpm if you throw the drift tire with a plastic sleeve you can draw your conclusion of fuel loss and or rpm being to low

I’ve been watching since you got the V8 and I’m stoked to see it driving and skidding around bro, well done 🙏

Φίλε Έλληνας είσαι σε βλέπω τόσο καιρό και δεν με πήγε ο νους ότι είναι Έλληνας. Μπράβο ρε φίλε συγχαρητήρια, τέλεια βιντεάκια

This thing is so dang cool! Thanks for sticking with it and continuing to share!

At first I was worried JohnnyQ90 wasn't devulging that he is sponsored by Toyan or Sterling Kit, and that he actually gets all these engines for free. You're supposed to let people know if you're sponsored. To be honest, though, I think these videos have made me want these small engines less and less the more of them I see. Imagine spending $1700 on this "supercharged" V8, plus everything else needed to get it to run (and even more if in an RC chassis), and the thing just breaks almost immediately because of terrible manufacturing and tolerances. I'll stick with enjoying watching someone else spend tons of money on getting them to work right.

I'm just impressed with how well it starts, I've seen lots of others struggle with these.

Best v8 rc ive seen running an driving so far on UKposts....❤

I bet youre so happy to see it coming together. I know your viewers are. Way cooler than normal RC cars nitro or battery. Well done.

This dude and these builds inspire me to go learn how to do stuff. So freaking cool. Thanks for documenting this for us, Johnny!

I bet that felt great getting it out for a spin congrats bud awsome work

its been more than 2 years followed you and i'v seen this little thing grew and now its 90% finished i am so proud of you. gg and continue let's go to the 2mill

Great test drive! It sounds so good! Thanks for sharing JQ90!

Δεν περίμενα ότι θα έβλεπα τέτοιο διαμαντάκι στην πόλη μου! Πολλά συγχαρητήρια!

U could cut a two slots into the metal, to maintain balance of the clutch and into the friction material, and use two dowel pins plus a lil glue to keep it from delaminating!! Just a thought!! Keep it up, love the Vidz!!!!

I will like to shrink myself so I could drive it. Dispite the repairs it needs I still find it perfect and awesome. Great work Johnny.

That sounds awesome dude holy fuck. This is like the next level in realism. Hearing it pass you even at those low speeds is insane

Awesome video as always, Sir. Long time subscriber. As an American, I always love seeing a fire breathing V8, in any form. I hope you can get the blower figured out. Keep up the great work Mr. Q90!

That's absolutely epic!!! Great job man!!🙌🏻👏🏻

Sick! Love seeing them drive and operate

very exciting V8 sound! great work!

Amazing ! Superb ! Congratulations !

This guy is smart and clever to figure it out, he knows his car well. Dude built it from scratch

I've been waiting for this video for so long and I'm glad it's finally here. But also I can see it needs some refinements in the power band, especially in the low rpm, knowing your potential it would be amazing to see you make turbos like you did for the twin cylinder 4-stroke, but have two different sized turbos and connect them in a compound setup so that way you can get the most torque down low and horsepower up high.

creating a body for the car once it is mechanically sound would be so cool! , it would literally be a mini car! , great vid once again!

What a sweet ride - love the sound

glad to see it finally roam free on the ground! all that work!

Thank you good sir for making our dreams come true! 🙏🙏🙏 A V8 RC... 😍 What a great set if skills you have!

This thing is so sick, can’t wait to see the final version

So exciting to see that beast off the chain and thrashing about! Just like any scratch built DIY project, things are going to happen. I have 100% faith that you will work out the bugs. Looking forward to the next update!!

It seems like there is a lot of hope for this project to actually come all the way through. Looking great so far and I can see it getting the last 25 percent improvement and then it probably will be the best rc car of its type on UKposts. It starts, the throttle is responsive and its fast enough to warrant the effort.

Excellent stuff! I think you might benefit from a baffle or two (or foam) in your fuel tank.

This thing's gonna burn some rubber 🔥🔥🔥

Very Cool!!! Such a unique sound for an rc!

CONGRATS 🎉👏🏆

im excited to see you make alloy rims next ep!

Pulling air bubbles into the fuel line. Add a splitter with 2 inlets inside the tank. Or a piece of fuel filter foam to stop the sloshing.

It sounds cool as hell 🤙🏽

Dude these videos are so friggin' cool.

Μπράβο φίλε , Πάχη Συνέχισε έτσι, Και πάλι μπράβο 👍🇬🇷

Sweet! So glad you're at the testing phase. I've been watching the build process and am REALLY IMPRESSED! I don't know if anyone has mentioned it yet or I may grant forgotten if you already thought about this, but have you implemented some runaway protection? You know, how to make the car stop if it loses contact with the radio while under full throttle. Always an issue with nitro RC cars.

thing sounds SOOO good man! Id go to a positive pressure fuel system like nitro cars run normally where it gets some exhaust air to pressurize it

The sound is so good

My guess is rotor shaft flex and the tolerances of the supercharger synchro gears: -That tri-lobe rotor looks to be a 3D ratio, with 3 segments I doubt it has the rigidity to stay straight under boost. -The synchro gears would need to have insanely tight tolerances and sub tenth backlash to maintain the lobe seal with such small gears/rotors. Even operating with a wet seal design. -If you do decide to make your own rotors, may I suggest a helical tri-lobe.

Sounds awesome !

It’s getting faster and more responsive 👍

Then start from control is very important and awesome

I can't wait to hear it tuned!

stalling- could be fuel pickup location on your tank you are using, also can play with the length of the hose from the exhaust to the tank to help keep constant pressure in the tank.

So awesome to see it driving...

Wonderful progress Johnny sounds like a nascar

Maybe machine the rotors in the supercharger to accept some Teflon blades. Like in top fuel dragsters. ❤

first time ive ever seen somone actually do work other than idle, great job! looks like a better application would be a monster truck or rock crawler

It has a terrible understeer, the car doesn't want to turn. And if you apply too much power, it immediately oversteers. I suggest you check your differential (if exists) . This issue causes extra load to your engine and clutch while turning. The car came from a long way, and I love how you build it with great effort and create quality content. Keep on, friend across the pond!

@JohnnyQ90 - just a thought: set up the throttle and clutch actuations on the same servo (or multiple servos from the same channel) - as you give it more throttle, the clutch starts to engage, and as you let off, the clutch disengages. This would take an incredible amount of fine tuning, but I’d imagine would work extremely well, but still provide that realistic functionality you’re looking for.

It has a very realistic, very scale look to it's speed, power and stance.

For the clutch how about making a flat flywheel and using mountain bike hydraulic disc brake pads as clutch pads using that pivot you already got to push 3 or 4 pads against a flywheel.

Using the exhaust to pressurize the fuel tank is good. Putting partitions with small holes into the fuel tank might help with stalling when sideways. that way the fuel doesn't slosh around as much.

Круто получилось, осталось только корпус подобрать и будет пушка 👍

This thing sounds good!

That is absolutely awesome😮

Ein Geiles teil, super Arbeit .

The comment about the tank needing to be pressurized is correct. They flow a lot of fuel at WOT, and the diaphragm pumps in the carbs can't keep up with it unless you have some tank pressure. You might look into sintered bronze for your clutch basket. The hotter it gets, the better it works. You may need a bit stronger return spring though.. Other than that, pretty good run for the 'first' time out!!😄👍👍

Really freaking awesome!

Need a locking slot or slots for the clutch lining or something. Really neat project!

I agree with a lot of these comments about the stalling issue. I’m leaning towards the idea that was mentioned about the clutch being still engaged while the car comes to a complete stop. That would definitely stall my car at least. That also probably played a roll in the clutch breaking. If it’s a fuel issue though, my suggestion is try a bigger fuel line, and a carb bowl if they don’t already have one. The bigger line will keep it from hydro locking, and the bowl will help with whatever air still gets through. As for the super charger I’m on team solid rotors lol. Those have to be one, solid, smooth piece to get rid of the slap. They have way too much wiggle being three pieces each. In other news; line lock? Totally unnecessary and would probably destroy the transmission but man would it be cool if it worked. Just sitting there roasting the tires and then turning it off and peeling away. As always, love the video. Keep up the awesome work, and I can’t wait for the next one.

Keep it up johnny your just too cool 👍

i think part of the reason it stalls when u slide is causee the engine just doesent have enough energy to keep going when the wheels slow down after a slide. real cars do the same if u spin and dont disengage the cluch

sounds sooo good!

Sounds much better sans blower. I wanna hear it through 180* headers. Thanks for the vid.

That thing sounds so mean. Love it

Dude, ya got this!!! 🤘😎

About time! Make it run alrwady

Amazing totally 👍 on board with your drive in making outer perfection on a machine that’s thrills the senses of WOWness in the ability to create kudos to you bro 🎉🎉🎉🙏👍

I would love to see new rotors for the supercharger!! There's so many videos out there with little superchargers and turbochargers for micro engines like this and none of them ever work. it's so sad I want to see one that works. you can do it!!

The sound is brutal

through some dowels through the rotors so they stay put. thread the ends so you can secure them. It might help the rotors not contact the housing since it won't be able to deform the aluminum at high rpm.

I'd add a baffled fuel cell to the list too, maybe put some foam in there and or make something custom with a baffled swirl pot built into it, the sort of thing you see on drag cars. The sudden direction changes and inertia were visibly causing the fuel to climb up the side of the tank which as the fuel goes down are probably starving the feed line.

I think a 7.5cc nitro engine 1 cilinder wil outperform all those toyan engines. Sad but treu. I still love it that you try making them work!!😍

You could make a custom fuel tank with baffles on the inside to prevent the fuel from sloshing to either side. Cheers!

It would be interesting to spin the supercharger at operating RPM without the engine, to see how much air it moves. I think these tiny engines are too small for forced induction to work properly. And I think the tolerances are probably just good enough for them to run, I think any substantial level of boost would bend things or just end up being lost as blow by. I'd love to be proven wrong, though. "2 Stroke Stuffing" gets an astounding amount of power out of a 50cc engine, but that's only one cylinder, and it's actually designed for vehicular use.

If you add a pressurized fuel rail system with like even 2 or 3 psi it would prevent it from shutting off when starved of fuel. I noticed its fuel delivery when it didnt fully die after turning and when you throttled it, it was already leaning out and it was to lean to get the fuel to create combustion again.

Don't know if it does anything, but I like the high pich sound it makes

Sick. 😯 You are getting close. She is going to rip. Thanks for letting us come along. 🫡

Nice to see it driving :-)

Badass good work

Dude is the Mozart of RC builds

Sounds like a Yamaha R1. Sick!

The scoring on the inside of the supercharger housing looked like it was towards the center, so the rods holding the rotors might be bowing from a slight imbalance when they spin fast enough. Someone mentioned one-piece rotors, so that might help a rigidity issue. If that's what's actually happening.

A felt or ceramic fuel clunk may help if fuel is aerating or sloshing air causing it to die.

Great job

I'm glad that you looked at that supercharger.... Very difficult on small-scale to get any form of pumping efficiency... Ratio of size 2 clearance.. Plus friction of the belt... but perhaps you could just run the supercharger with a motor and measure the pressure at different RPMs..... As well as getting an idea of the flow rate...before connecting it back to the engine...