We Tried to Build the World’s Smallest V8

Don’t miss out on all the action this week at DraftKings! Download the DraftKings app today! Sign-up using dkng.co/donut or through my promo code DONUT
We thought it would be fun to build the world’s smallest gas-powered V8 engine. We were wrong.
Huge thanks to our friend Matt from Warped Perception for helping us out on this one. Make sure to watch his video on this horrible engine.
Also, huge thanks to Pacific Coast Hobbies for the countless hours spent troubleshooting this with us.
Gambling Problem? Call 877-8-HOPENY/text HOPENY (467369) (NY). If you or someone you know has a gambling problem, crisis counseling and referral services can be accessed by calling 1-800-GAMBLER (1-800-426-2537) (CO/IL/IN/LA/MD/MI/NJ/OH/PA/N/WV/WY), 1-800-NEXT STEP (AZ), 1-800-522-4700 (KS), 888-789-7777/visit ccpg.org (CT), 1-800-BETS OFF (IA), visit OPGR.org (OR), or 1-888-532-3500 (VA). 21+ (18+WY). Physically present in AZ/CO/CT/IL/IN/IA/KS/LA(select parishes)/MD/MI/NJ/NY/OH/PA/TN/VA/WV/WY only. Void in ONT. Eligibility restrictions apply. Valid 1 per new customer. Min. $5 deposit. Min $5 bet. $200 issued as bonus bets that expire 7 days (168 hours) after being awarded. See terms at sportsbook.draftkings.com/footballterms. Ends 2/12/23 11:59 PM ET. Sponsored by DK.
Donut = We like cars, and we like making videos about cars. Hopefully our videos make you like cars too.
Subscribe for +50hp
Notification bell for +100hp
Get a Donut shirt ►►www.donut.media/
Check out our membership program Donut Underground!
► / @donut
Our instagram has good memes: / donutmedia

[@Donut]

Don’t miss out on all the action this week at DraftKings! Download the DraftKings app today! Sign-up using dkng.co/donut or through my promo code DONUT

[@bunnarongty2439]

Reach out to johnnyq90

[@ShockingPikachu]

Yeah I'm not going to support betting. That industry has absolutely fucked over parts of my extended family.

[@thijmenboonstra4974]

Next up please turbo the little engine!

[@Mix_master_302]

You must!! Talk to jhony q90!!!

[@Life_and_Love]

After watching Johnny VQ90 it looks like the timing was off when it was put together.

[@WarpedYT]

These things are tough, a real pain in the a**, sounds like a timing issue. But my anxiety is at 500% just watching you guys trying to get it started... I have small engine PTSD rn.

[@MyAutomotiveChannel]

Wussup bro, love your videos.

[@WarpedYT]

@@MyAutomotiveChannel thank you, unfortunately just like the donut guys I'm dealing with engine troubles rn...lbvs.

[@MyAutomotiveChannel]

@@WarpedYTRIP, good luck with that...

[@MrOddsmurf]

When is the Koehler getting into the Tesla?

[@WarpedYT]

@@MyAutomotiveChannel thx, I decided to rebuild the engine right in the middle of filming another crazier jet GoKart project, all of the head bolts broke in the engine block, I milled everyone out with relative ease, except the last one which has been an absolute nightmare. Hopefully today I'll have a better day.

[@MarcStollmeyer]

Johny Q90 is your man. He not only got them running but actually figured out the spark plugs and has built every single Toyan engine.

[@benjaminwatson7868]

I don’t think anybody is running any of the toyan engines on spark, he got the one 32cc engine to run on spark

[@Paulitorocks]

*YUP*

[@TRC98]

took the words out of my mouth

[@kevincase2141]

Johny Q90 ftw!

[@KingClipZ.451]

Literally read my mind

[@pittvypr]

Funny how a tiny V8 ended up being Donut's kryptonite.

[@mattockmodels]

EJs: am I joke to you?

[@joshsemo4214]

@ianvisser7899 lmao. Great comment.

[@bigbruh7951]

@@mattockmodelsthey did it to themselves

[@trilliamogdlocog4986]

Have you seen them try to turbo the Z's Let's just say sometimes I wonder who taught them how to work on cars an if they are even mechanics

[@GoodOldGamer]

I mean, they killed several Hi car engines, so....

[@philcarrizzi]

I think it was really bold of you to go ahead and post a video of you failing at some thing you worked really hard on. I like it. It feels real.

[@smaskimikrofonen6428]

Yes where are the women?

[@kwinngeer9070]

What does that mean

[@MRMechanicRC]

“If there’s one thing we can do here at donut, it’s kinda solve problems” You have no idea how much I felt that one 😂

[@gettingreadywithjules]

Honestly, Nolan is such a gem for handling all these complex situations at work on camera and still being pleasant.

[@joseeduardo4327]

We’ve found the President of Nolan’s fan club

[@TermlessHGW]

All in for that model you could probably buy an old clunker or a bike. And actually drive it...

[@pittvypr]

Nolan: "$1000 is too much for an RC car." Also Nolan: "hehe $1600 mini V8 go brrrrrr"

[@Wingspan_5]

Is he? He whines and swears like a petulant child the second anything goes wrong.

[@jameull]

@@Wingspan_5 why are you watching donut then?

[@firstfromabove]

"I swear we WILL make another video, we WILL get this running." Well THAT was a lie lmao

[@justinlawlor3898]

Johnnyq90 put this in a car and built a supercharger for it that worked, shout out to Johnnyq90

[@michaelaguilar9751]

Beat me to it. 😀

[@Chester200100]

Didn't he dyno it and it made less power with a supercharger?

[@aneeshvenkat]

Yeap

[@rhyswilliams4893]

@@Chester200100 he did! Parasitic losses are real bad when you are working so small.

[@rhyswilliams4893]

@@Chester200100 he still built a super charger for it though!

[@onesadtech]

I really thought JohnnyQ90 was gonna be the nuclear option, both times. 😂 Would be cool to see him come help the boys.

[@tbag6600]

I was thinking the same thing

[@loathingkernel6537]

I have a feeling that JohnyQ90 lives in Greece (if I am not mistaken) and doesn't really speak in their videos, so although they would be the ideal choice, IRL things might have made it difficult to collab.

[@sladeb6036]

Same. That dude is GOOD. Making his own transmissions an stuff.

[@onesadtech]

@@loathingkernel6537 great point! I hadn't considered that!

[@bradcrossman5068]

I love how the graphic artist created the orientation of the spark plugs at the 6:58 mark.

[@bernardosilva2540]

I was looking for this comment 😂

[@ads1035]

Ha! Sure enough, looks like someone was a little confused!

[@Sak-zo1ui]

And the “short block” in the picture of all the parts that came in the kit.

[@3n3ly7m9]

lmfao

[@cannonandre9513]

i saw that too. knew there would be comments about this

[@AzyTabz]

Shoutout to Nolan for all the amazing work he had done recently! I'm so proud of him

[@kazikian]

Ditto

[@oboshibruno5561]

ʟᴇᴛ'ꜱ ᴛᴀʟᴋ ᴍᴏʀᴇ ✍️✍️✍️👆👆👆👆.....

[@lukewelte5510]

Imagine the spark plugs being upside down @ 6:57

[@wage6681]

Nice, didn't catch that 😂

[@BrodyCox]

A few years back I worked as an editor/journalist for a major motorcycle publication and multimedia company, and during a meeting with the brand manager for said company (the guy who was in charge of about 13 different motorsports related publications), we actually had to explain to him how spark plugs functioned and what they looked like after he couldn't draw one from memory. My buddy in the chair next to me literally had one tattooed on his chest. Probably a reason that company eventually tanked with that self-proclaimed motorsports enthusiast at the helm...

[@readysetgaming9184]

I saw that to

[@The_69_Club]

Wtf haha

[@bugatti7760]

Thank god I wasn’t the only one who saw that 😂

[@rcdriver]

Took me about an hour to get mine started for the review on our channel. It was a glow/ electrical issue. All plugs have to be constantly lit. My power, a 3S LiPo pack, was going through the factory wiring setup but two wires weren’t making perfect contact with the glow plugs. Once I fixed that, it fired on 25% Nitro Hobby fuel. Theo from PCH is the man, he probably threw every trick at it. My only guess would be try starting it with the carbs about 1/4 open then pinch the fuel line a two-three seconds after starting, this will lean it out and hopefully show if your carb setting is too rich. Looks like you had a ton of fuel dumping out. Also, it was hard to see, but those may not be the right plugs. There should be a 2mm shank beyond the bottom of the threads of the plug. It’s a Type-F plug for 4-strokes. Good luck!

[@rustybros]

I love watching Donut's content cause 80% of their content is the struggle they face. Ain't like these other content creators that is all easy fix and smooth sailing.

[@That_one_kid_on_yt.]

Yo thats so fax

[@cliftonbarker9168]

@Donut please make a part 2 with the RMS mechanics trying to get it to work. It's just a prop now, have them actually get it running! That would be an incredible episode.

[@javiervazquezz]

I’ve always thought about how much I would love to be part of Donut. But when I watch these videos it reminds me my knowledge mechanically is very limited compared to these guys. I’d be the guy bringing the snacks while they do the work 😂💀

[@jasonprevilon9555]

Or you could be a writer or a film guy. You don't have to be on the screen.

[@bryancohn9406]

Hey catering is as important as any mechanic, engineer or driver on every racing team! After a long career as all of the above in motorsports including at least two dozen endurance races from 6-24 hrs I’m here to say teams run and win on the catering crew! Nothing better than a bowl of chicken noodle soup at 2 am on a cool fall evening at Mosport or a plate of pasta for dinner at Mid Ohio.

[@Merritt636]

I applied when they were looking for a host, thinking, I know quite a bit about cars, I keep 3 beater POS's running in my spare time. Despite having been watching donut for a while, I still thought, yeah I could do that. Lol, I absolutely cannot and I think they found a diamond in Justin. The whole crew is fantastic.

[@lolish1234]

Or, you know, learn things

[@miguelelelelel]

Would still be fun af to just be there

[@Arctic_silverstreak]

Probably required a lot of custom machined parts like the way Johnny did but if you guys were able to build a multi rotor (2+) powered rc that would be awesome

[@Blaquer17]

They sell a mini single and 2-rotor engine on the same site that you get the Toyan V8. Actually a lot of cool mini engines on their site.

[@wyattnyfeler7270]

@@Blaquer17 I just wish they weren’t so expensive toyans a cool company

[@benjaminwatson7868]

I don’t think Johnny machined anything

[@beaverman285]

@@benjaminwatson7868 you clearly have not watched a single one of that guy's videos

[@benjaminwatson7868]

@@beaverman285 im talking about for this engine specifically he's machined engine mounts a couple of intakes, his designs are almost always faulty and never really perfectly thought through, they do look great though

[@Dustin_Platt]

11:52 I like how the background is a paragraph about the Square Cube Law which is "When an object undergoes a proportional increase in size, its new surface area is proportional to the square of the multiplier and its new volume is proportional to the cube of the multiplier." Good editor.

[@timothyjamieson4689]

Donuts entire channel is pretty much an example of perseverance and not giving up.

[@wavey_b0ne]

But they did give up

[@JickJackJake]

I hope you're being sarcastic. They just have other KZbinrs come visit & fix they're junk. Real Top Gear/automotive journalist style.

[@VyantQuijt]

But a prime example would be Alex of 2stroke stuffing

[@liamgleason3416]

I'm certainly not an expert on these model engines but I've known people who ran them on gas with spark plugs and needed to add an encoder disk to the rotation of the crank with a sensor to read it in order to properly time the engine, not sure if you've tried that already or not! As a bonus the encoder can be used to read out your RPM like a tach

[@onesadtech]

Who put the spark plugs upside down in the graphic at 6:58? 😂 That was too funny. Love these little engines.

[@Baeviss]

I’m actually waiting on Part 2 of this! Haha. Loved this!

[@Sillybutts]

Same here!

[@budadi]

Same

[@AndyD720]

@@budadi Same...

[@tormenta8895]

same...

[@gungame412]

Same I keep checking

[@danieljones8706]

JohnnyQ90 makes it look easy lol.

[@CrispyGFX]

Love this format with the voice overs and the cutaways and the diagrams. Very streamlined and professional.

[@deadlypanda-eu3eq]

6:55 😂

[@BKHD605]

lol, defeated by a baby v8 and never returned

[@Slycarlo]

Wheres JhonnyQ90 when we need him the most?

[@gilbertsbiogasexpertske1120]

his builds are just epic

[@veedubbergti]

i love the backward spark plug graphics. honestly guys love the work. keep it up!

[@Mrbukko]

i went to the comments immediately to see if anyone else noticed this lmao

[@SpaceMissile]

@@Mrbukko i was about to whistle-blow so hard lol of course others were first.

[@rishitjain7833]

6 months out…think we should get that vid Nolan promised shouldn’t we?

[@cameronjensen9786]

JohnnyQ90 has a vid on that same engine, and he did a really good job you should give it a watch then revisit this!

[@distantanomaly9649]

If they did like 20 minutes more of research they would have found Johnny. Just asking Warped isn't enough. For me I wouldn't want to blow almost two grand by winging it.

[@castekracing]

Great to see so much new rc content across my fav full size car channels. These motors are temperamental at best. Pull the valve covers off and make sure valve timing is correct and valves are doing what they should be. Make sure the crank and cam are timed. From memory it's both dots pointing down not towards each other like a full size engine. Other than that, they do make a great paperweight :D

[@Artificeral]

14:26 I've never seen Nolan so fired up! He's going to get this thing running for sure. Eventually.

[@grahamwilliamson5306]

Justin needs his own show already. He's too cool to be stuck doing sponsor spots forever!

[@goldsquadron]

It's refreshing to see a video about all of the failures, and showing that it's okay to fail. Looking forward to the video showing how you got it running.

[@WNRSSS]

Oh my, this brings back memories staying up late waiting for a donut video 😂 Keep it up lads love the work, you guys definitely deserve the following ❤️❤️

[@Fransen27]

@DontReadMyProfilePicture.2 dude you just made me have an adventure across youtube

[@IanZainea1990]

14:09 love the music choice

[@Zerokul021]

Please dont give up on this project. I am looking forward to part 2 of this mini engine and how you guys get it to run on a frame.

[@Dracula00pium]

PLEASE COME BACK TO THIS 😭 and when (because I know you guys can do it) you do get it working put it in a go cart or something, Like so they’ll see

[@LootFreak]

It's so dope to see how far these guys have come from the beggining of the Channel. They basically have a Car Fantasy Factory now hahaha.

[@gamepal5088]

Where’s the video when it run it’s only been a year tf

[@ThatColorado]

This would have been an awesome 2 to 3 part series ... this is awesome to watch. I heard there's bigger models like this that can power those like jeeps for kids those 12v ones.

[@RCKnockout]

I’m looking forward to part two! Really pulling for you guys to get it going

[@josholsen3817]

A year and a half later and we still don't have a video of this engine running... Nolan's promises don't mean anything 😮

[@sebastianflint7125]

Seems like Nolan is doing alot recently, it's nice I like to see him he makes my day better

[@caseyblackburn6365]

I love the upside down spark plugs in the animations 😂 7:03

[@theforgereviews4346]

Hey you guys should do an all audio build! Go deeper in depth into bass speakers, treble speakers, sound deadening, and high end batteries/amps/alternators/different gauge wires, etc. I think everyone would appreciate a breakdown of what you need based on the power of your speakers. (Us bass heads and headbangers out there need this from our favorite automotive channel!)

[@daltonpennington8147]

It takes years to understand it all and know what's worth it and what's not

[@fred_e]

Def gotta cover cable routing.

[@theforgereviews4346]

@@daltonpennington8147 maybe it’d be a little less if they got some help from a professional. (Which they get help from professionals on a regular basis anyways) idk, it would be nice to have our favorite car guys explain (and learn) some more in depth stuff. So us complete novices out here can understand a little better.

[@aditroy57]

wait until they find JohnnyQ90

[@emirkomutan4212]

Johny Q90 is crying rn

[@Kentuckywaterfall69]

I really hope that you guys end up getting this thing running! Super badass

[@bsascout9725]

I loved watching this. Everytime I see guys like you working on RC cars that probably shouldn't happen I think of my old rc. A car I had when I was a kid but I still have it, and want to beef it up, or make a new proper one based on it

[@jebus456]

yes! i love watching build videos of these things!

[@leslie9271]

It’s been 4 months I thought you’d have it running

[@brianwilliamson245]

I love when Nolan says, "My loved ones" his cat pops up

[@rehanlodhi-kx5sh]

bro it has been a year but no part 2 to this shit even after several people have done and made videos on it

[@ryanlemons3255]

Did you check your voltage of the wires to sparkplug? Make sure they are not too heavy gauge etc Also it takes a lipo battery to make sure it has enough voltage going through cant use dcells

[@davidantonucci1161]

lling where are you I was afraid In the garden Have you Were you naked The woman whom you gave Deceived me who The one whom I gave Then man Have you I commanded you not to To be with me From the fruit she gave God said You have So I have The woman replied So I This you have done

[@Lozzie74]

You don’t want to drop voltage due to wire resistance. Use the right voltage and maximize wire size. Small gauge wiring to control voltage is ludicrous.

[@ryanlemons3255]

@@davidantonucci1161 the fuck u talking about

[@ryanlemons3255]

@@Lozzie74 same thought I said lol

[@davidantonucci1161]

10 Why, O Jehovah, do you stand at a distance? Why do you hide yourself in times of distress?+ 2 The wicked one arrogantly pursues the helpless one,+ But he will be caught in the schemes he devises.+ 3 For the wicked one boasts about his selfish desires*+ And blesses the greedy one;* ‎נ [Nun] He disrespects Jehovah. 4 In his haughtiness, the wicked man makes no investigation; All his thoughts are: “There is no God.”+ 5 His ways keep prospering,+ But your judgments are beyond his understanding;+ He scoffs* at all his adversaries. 6 He says in his heart: “I will never be shaken;* For generation after generation I will never see calamity.”+ ‎פ [Pe] 7 His mouth is full of curses, lies, and threats;+ Under his tongue are trouble and injury.+ 8 He waits in ambush near the settlements; From his hiding place he kills an innocent one.+ ‎ע [Ayin] His eyes are watching for an unfortunate victim.+ 9 He waits in his hiding place like a lion in its lair.*+ He waits to seize the helpless one. He seizes the helpless one when he pulls his net shut.+ 10 The victim is crushed and brought down; The unfortunate ones fall into his clutches.* 11 He says in his heart: “God has forgotten.+ He has turned away his face. He never notices.”+

[@bruhh-vg6hu]

ITS BEEN 8 MOTHS

[@matthewmcmaster2731]

I like how your little cartoon about the spark plugs shows you have them upside-down in the engine... 😂

[@onpluto7796]

Good effort boys always fun to see what you guys come up with and what I can learn

[@AmBot]

that not small right?

[@pedroteixeira7595]

Bigger than average.

[@chiporama]

Definitely not small. If go so far as to say it's more than most people would ever need

[@tdwl4373]

Sick. Then there's Jared with the helmet making "THE CALL"

[@malicious_wurm8242]

I’ve seen these so much and have wanted one and I’m so happy donut is doing a video cause now I’ll know if it’s worth it thanks to them❤

[@EthanNKelly19]

Day 8536 of waiting for part 2

[@Cody89666]

No that’s huge and I’m sure it’s personality is great too

[@Hobby_Electric]

Tips from a RC guy: 1. More RPM to start the Engine 2. Check Glowplugs! they like to burn out if they recive to much voltage. 3. Do not start to rich, work your way up. 4. Nitro engines always 2 Stroke... Check your Valve timing and compression ! My 4,5cc Nitro has serious compression... Sometimes i have to let it cool down before i start it again because my rope starter would rip if i pull to hard.

[@TSU_Tony79]

been 8 months and no new video but making new content. wonder if they forgot about this project.

[@drew.-]

It was sitting on the desk in a recent video. Looks like they are just using it as a paperweight now 😔

[@davidder4516]

These model engines have came along way!

[@diegoarevalo9136]

I don't know if Donut checked the ignition system of the spark plugs, they would have checked if they were lighting properly and that the electric ignition motor kept the engine at a recommended speed to start.

[@projector7141]

There didn't seem to be a distributor or any timing mechanism at all, so you need: 1) A crankshaft position sensor - and missing tooth wheel encoder 2) A camshaft position sensor - and missing tooth wheel encoder 3) Electronic ignition system of your choice (to tell it when to spark) 4) Set Cylinder 1 to TDC and the Cams in the correct phase to this and each other 5) Know your compression ratio, by measuring it 6) An ignition coil, because you need to amplify the spark voltage to 20kV +, 30kV is better 7) Gap your spark plugs 8) Throttle position sensor to adjust timing with load 9) An ignition map 10) Optionally an oxygen sensor to run the system in closed loop. You can skip 2) if you have enough belt tension but these things can jump timing on a jerky start.

[@karn4062]

"He's probably cheating on me" the boys tryna make a RC with V8 in it

[@Cassie-xh4ju]

your channel is one of the best discoveries i’ve made online!

[@jamiejfowler]

There’s something a bit weird about the spark plugs in the animation at 7:00 😂 Keep up the good work, let’s get that thing running!

[@thepoloranger420]

😭😭they really had to bring in the big guns when they called wrapped perception. Ultimate YT crossover.

[@shuruff904]

Gotta love that yellow bar

[@brendonfleetwood6069]

I admire the persistence of everyone at Donut

[@backwoodsjunkie08]

Should have got a guy that builds and Flys RC glow/ gas planes. I've built so many glow/ tiny gas motors I can't even count them, including brands like cox, Saito, O.S. , Evolution, eagle and probably a few other I'm forgetting. The spark isn't to hard, if it's glow you just use glow plugs which are a piece of cake. If you use spark you usually have a little ignition box with timing on the flywheel or the cam gear. I've seen gas set ups with radials with over 8 cylinders that run great! Just takes time and patience... alot of patience! You think adjusting timing and fuel mixture on the ground is hard... imagine trying to do all that while the engine is pulling several G's and up in a thinner atmosphere! You have to take all that into account and do several take off's and landings to get it tuned just in the ball park

[@backwoodsjunkie08]

You should contact the dude from the KZbin channel "Let's Learn Something Today"! That guy can fix/make anything!!

[@2-n-tintz928]

Patience is a virtue my friend... something that complex takes knowledge, skill, and ability

[@Ange1ofD4rkness]

This is like writing software, fix one thing, break another

[@Kayla-zv6yd]

Next t+shirt, "V8's keeps you up,yet car can't get up"

[@FFLORO_45]

Any chance for a part two?

[@ben501st]

Draftkings has a sportsbook for betting on which Donut project will be completed first: this engine, the Chrysler, the S14, or the 86.

[@viceroybolt3518]

Next video in this series, the gang builds it a blower

[@Gamerxyz_755]

The effort just for this tiny engine is crazy

[@MultiSweeney1]

Good start; now try the supercharged version.

[@MrShadow9602]

It's funny how a barely-working piece of aluminum can cost as much as a used car you can actually start

[@MrHappydonutz]

Ugh scale makes a crazy diff man, thanks for hanging in there and giving us a great vid! Cant wait to see the progress

[@Blockistium]

_"Brick Technology was able to build this in a cave... with a box of LEGO!!!"_

[@carguy_rz]

Still hoping for a part 2. I'd really like to see you guys get it running. And as someone here already stated, you should really get in touch with JohnnyQ90. He got a lot of these engines running😁

[@Enanram]

I love how you said "V8 in a regular car"

[@davidboudreau4054]

I built a $500 dollar v8 , 32 valve twin cam engine that runs on the starter motor. I loved it. I got to assemble the connecting rods to the pistons. The valve springs and other parts like that. It doesn't run on fuel, but it was super fun to build and all the parts (after being well lubricated) rotate and move as they should. IN the end it was like a short block engine that just needs a few more parts to make it a race car engine....

[@naumannadeem5110]

failure is the key to success! love you guys

[@EngelPedraza1976]

New donut t-shirt... "small V8's are pain too"

[@fiery_transition]

Jeremiah went full Sith lord in the assembly part

[@curist8411]

The Tiny V8 was more stressful than the Low Car lmao

[@nanerpusjay]

its hilarious that jeri was giving real car advice like an "air leak" and then the next shot is a lil tiny motor

[@TDT32]

I love it that they said that they are not giving up but it has been 6 months. I give you credit for trying I would just leave it on my desk

[@LivinNreflection]

10 months now.

[@voraz9002]

6:55 funny how the sparkplugs are upside down lmao

[@haileymcpherson8424]

Still waiting for y’all to get it up and running!!!

[@DavidSanchez-wz4co]

I'm convinced they threw they whole thing away the moment the video ended

[@FijiLaw]

Johny Q90 is the wizard, he has a mini lathe machine, machines alot of miniature parts and gets all mini engines running

[@howardlouie3359]

is there a part 2 yet it's been 8 months now?