Turbo Go Kart Finally Makes Boost!

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In this video we put a Turbo on the 60's go kart! What we needed to do was make a turbo manifold, oil system, and electrical system to make sure the turbo could run completely autonomously, that way when we hook it up to the engine, we would know that there were no issues on the turbo side of things. After we did that we ran this turbo kart under boost with 2 carburetors, made custom intake piping, and finally revved it up and tuned it so it ripped!
Before we began the install we filmed some awesome driving footage to get a preliminary test so we could compare before and after the turbo was installed.
Thanks for watching and be sure to stay tuned for this thing making some boost while driving!
Music by Joakim Karud / joakimkarud
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PARTS-
Mikuni Carb - www.gopowerspo...
18 pound valve springs - www.gopowerspo...
Exhaust and Air Filter -www.gopowerspor...
Tires - www.gopowerspor...
Inner Tubes - www.gopowerspor...
Motor Kit - www.gopowerspor...
Catch can - www.gopowerspo...
Header pipe:
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Mechanical Fuel Injection:
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Опубликовано:

8 сен 2024

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Комментарии : 941

@gunnyfineproductions782 5 лет назад

I would personally just do a pull through system turbo boost outlet directly to the intake and only run one carb

@kleetus92 5 лет назад

Yeah I don't understand what is so fucking complicated about this...

@flatbeddingwithchris5314 5 лет назад

I agree with this

@87weberdrex 5 лет назад

Came here to comment this. They are making it way more complicated than necessary.

@Jason_Bacon 5 лет назад

Yup, one draw through and call it a day. All the problems would be solved.

@ENZEEVIDS 5 лет назад

the problem with that set up is the fuel droplets, instead of remaining atomized and gas like, all the way to the combustion chamber, condense on any of the surfaces that it flows over so in the end you end up with a mixture that is no longer stoichiometric. obviously the longer the intake tract the more surface area there is to cause problems.

@ROTAXD 5 лет назад

Y'all are making this build far more complicated than need be. Put the Mikuni directly onto the turbo air inlet. Connect the boost side directly to the engines intake. Plumb exhaust and jet up as needed. So long as the turbo draws air through the carb instead of forcing air/pushing air through it you'll be fine.

@benhawke7231 5 лет назад

When you place the carb after the turbo, it blows the fuel back into the the float bowl and can blow the seals of the carb and fuel out of the float overflow. If you're going to keep the 2 carb set-up, then run the the pre-turbo carb wide open all the time and use the second carb as the throttle control or vice versa. Also on the idle carb on the boost side, you should block off the float over flow and any non-jetted ports leading to the float bowl. But I recommend getting rid of the second carb on the boost side and getting a lectron carb and placing it on the intake side of the turbo. Lectron carbs are self tuning and work amazingly for carb turbo setups.

@BuildBreakRepeat 5 лет назад

Ben Hawke Yeah, that’s why we attempted to pressurize it by putting that screw in there. We still had issues with that though.

@benhawke7231 5 лет назад

@@BuildBreakRepeat You should use a lectron carb. It's self tuning and works great for turbo setups.

@BuildBreakRepeat 5 лет назад

Ben Hawke I’ll look into it thanks.

@sirbow2 5 лет назад

@@BuildBreakRepeat You missed one more part, the fuel tank must be pressurized as well, otherwise the boost will push the fuel back into the tank or atleast prevent more fuel from coming in.

@sinformant 5 лет назад

Scoffing evidence setup would help. They have setups specifically for putting a Turbo on a small engine.

@Spaded4life13 5 лет назад

I am glad to see kids still messing around with shit like this give them a big thumbs up good job

@treykilgoreiscool 5 лет назад

You can always divert boost pressure to the gas tank and keep the whole fuel system pressurized, that would keep the carb able to pull fuel through

@CygnusHomes 5 месяцев назад

I'm turboing a roadster reverse trike and was thinking g of doing this. And article I can read about doing this? Safety concerns?

@treykilgoreiscool 5 месяцев назад

@CygnusHomes the safety concern is that the blow off valve may release pressurized fuel air mix (boom). You have to be really careful. The best option I can think of is having a longer boost tube than plenum to allow the expansion of the fuel air mix. You also might want to put a spark arrestor on both sides of the turbo to prevent ignition of the boost tube in the event of air fuel reaching the hot compressor

@vortex812 5 лет назад

Do it with just the draw through. No blow through.

@drock-zg5hl 5 лет назад

Try using one carb at the intake of the turbo then at the exit use a continuous pipe to the in take of the engine

@henryaurand7951 5 лет назад

The blow through carb will need a high pressure fuel supply if you want to do it that way. What happens is the bowl gets pressured by the intake air as soon as you make any boost and it pushes all the fuel out of the carb. Some people actually put a sealed box around the entire carb to help with help solve pressure differential issues. That being said, you should be able to make it work with just one carb up-stream of the turbo (draw through). With a properly sized and jetted carb you should be able to make it run well. I did this on a car of mine and it worked pretty well.

@thegenerousdegenerate9395 5 лет назад

Couldnt they just run a boost line to the tank and seal the lid tight?

@danmackintosh6325 5 лет назад

That would work actually, I did think for a moment that the sealed tank would draw vacuum as the fuel got used up but it wouldn't do... Mounting the carb in a plenum is an idea I've been pushing since the first turbo vid too, solves so many problems instantly.

@munkysthrowpoop 5 лет назад

Azn runs the dung beetle with a draw through carb and it seems to work pretty well.

@henryaurand7951 5 лет назад

fuckery abounds it could work, but then you have a tank full of pressurized air and gasoline. Very easy for that to turn into a bomb. Safety is rarely even in my top 5 priorities and I wouldn’t want to be around that.

@danmackintosh6325 5 лет назад

I don't know that it would be any more or less dangerous than having fuel pressurised by a pump though really. In an enclosed space like a fuel tank the vapour/air ratio is much too high for it to be explosive, hence why it's possible to use electrical level senders and in-tank pumps without danger of explosion. I guess if the boost pressure caused the tank to rupture and spray fuel everywhere, but I don't think it's overly likely with the levels of boost this engine will run. Like you say though, a plenum and properly regulated fuel supply is the better option & what I'd go for if I could.

@freshy2774 5 лет назад

Just use one carb ! keep the mikuni as a blow through keep that screw in the vent and run a boost reference line to the venturi then install a pulse fuel pump job done ! 👍🏻

@miguelamaya6246 5 лет назад

We saw your invention but, couldn't put heads or tails on it. We installed a Hayabusa engine on a cool off-road go-cart and came up with an Awesome built. We have a 10-gallon gas tank on it. And we are very proud of ours. .gas lasts forever.

@ProlificInvention 5 лет назад

*Build Break Repeat* Awesome project and video, following your progress for sure. An idea for a future video: Put a 1980's VW smog pump on a predator as a supercharger. I have seen some examples that make crazy RPM's and power. It is essentially a scroll supercharger with the perfect plumbing dimensions for a small engine. Thank you for all your great content, longtime subscriber.

@danmackintosh6325 5 лет назад

Now there's some prime recycling if that's true. Being from the UK I'd never even considered smog pumps as we avoided them, but if they're a scroll compressor with decent volume then it'd be a really cool project and probably much easier than a turbo..

@ProlificInvention 5 лет назад

@@danmackintosh6325 One example among many, this one uses a mustang smog pump... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gERfFq8eAK0.html

@elilachappa3330 5 лет назад

An aisin amr300 supercharger would also be really good for something that size. It's 300cc and you can find them online for like 200$

@superchargedadventures 5 лет назад

A amr 500 is how I supercharged my UTV!! LOL Badass little superchargers!

@GMC4240 4 года назад

I did the same thing, but I’m running a mikuni with the bolt threaded in. I had the exact same issue. All you need is a pulse pump. Cost 15$ and solved all my problems , just make sure you put a t in the line that returns to the tank so you don’t flood the carb

@drewalsup9200 5 лет назад

You guys are the first people to do this and have any signs of it actually working. I think cars and cameras tried this and grind hard plumbing co tried this and neither of them had any success, good work engineers lol

@askbeforeplaying2983 4 года назад

I wanted to turbocharge a go kart, but now I want to turbocharge a rotary go kart. This one video has made me subscribe.

@lee4speed 5 лет назад

I love how everyone tried to help here and not be negative to these guys, this is how its suppose to be. I even learned some things thanks

@cashm4705 Год назад

need more of this in our world

@theredwedge9446 Год назад

Not sure how much you can modify those carburetors but that’s a really cool way of adding more fuel to the system

@Cumminslife 5 лет назад

Your original blow through setup would work fine if you just route the carburetor vents to the compressor outlet. Also will need to enlarge jets otherwise it will run far to lean on boost. Watch my turbo welder video for more info.

@ronbradshaw7404 5 лет назад

Optimal is right, use only the Mikuni carb., in a blow through design but, you won't need to enlarge the jets much, as there is now positive pressure inside the bowl of carb. Been there, done that :)

@wirewrks 5 лет назад

I had several experiences turbocharging carbureted small blocks back in the '80s, and I'm still turbocharging vehicles today. I highly suggest using a "draw thru" (or "wet charge") setup, over the "blow thru" (or "dry charge") setup. A single carb on the inlet side of the turbo, with a discharge pipe into the intake ("draw thru") is less complicated, and makes for easier tuning. A "blow thru" setup requires fabricating a totally sealed enclosure for the carb, so the carb's vent circuits "see" the same atmospheric pressure from the discharge pipe, that the venturi, idle circuit, air bleeds, fuel bowl and the needle/seat all "see" when under boost. Deleting the turbo outlet exhaust housing, in favor of the integral wastegate delete and wastegate puck block-off plate, will obviously cause high boost pressures. But, if you can keep it around 5-7 psi, while using the stock carb and increasing just the main jet 10-15%, you'll probably be in the ballpark for fuel requirements. BUT... after seeing the surging, low pressure and air pockets in the oil supply for the turbo, these recommendations may just be moot points. Anyway, good luck with the project. Happy Trails..!!

@michaelkalt2912 5 лет назад

Eliminate the blow through carb. Put a "Y" pipe on the inlet side of the turbo. Put a carb on each side of the "Y". Then you can have one for idle and make it so the second carb comes in at 1/4 throttle or so. Kind of like a Dual Quad setup or a Mopar "6 Pack" set up. It is referred as progressive linkage. Blow through carbs don't work unless specifically built as blow through.

@DanDan-xu5qp 5 лет назад

Dual quad - Mopar 6 pack ???? They are totally different. A dual quad is 2 four barrel carbs, a 6 pack is 3 two barrel carbs.

@johntingle455 5 лет назад

People have given you some interesting suggestions. Here's one you might consider. About 45 years ago I saw a McColloch belt driven supercharger on a Studebaker Lark. The carb was enclosed in a sealed air box. The supercharger fed the air box. That way the air pressure resulting from the boost would be equal inside and outside of the carb and would not cause carb leaks. You would only need 1 (your highest volume) carb to run the engine. Fuel line and adjustment controls could be run through the air box with air tight seals , as not to loose boost pressure. That way you could make your adjustments on the outside while the engine was under boost. Of course instead of feeding the air box with a supercharger, you would use your turbo. And the wastegate could be plumbed between the turbo and air box. If it would ever open you would only vent air and not an air fuel mixture.

@Vr6.christos 5 лет назад

I think you guys should make a Diesel kart

@BuildBreakRepeat 5 лет назад

Chris ‘s vlogs I’ve been looking for one...if I find a good deal I’ll be on it 😏

@ufoxfox4352 4 года назад

Draw threw turbo setup is the way to this to operate, put ur carb on the turbo intake and remove the carb on the engine, run ur charge pipe from the turbo straight in to the head port ,sorted boys ,😉

@joshowens727 5 лет назад

I’m sooooo glad I found this Channel

@bigtay522 4 года назад

It's refreshing to see that there is still some young gear heads out in the world. I thought everyone was playing call of duty

@ELJEFEEEE 5 лет назад

Ever heard of re jetting? Damn lmao

@s00p3rman 5 лет назад

Yeah agreed. Wtf are they doing adding carbs? I'm thinking, "why don't they just check the plugs and rejet?"

@johnt9906 5 лет назад

Just rejecting won't help, they are pressurizing the after turbo carb. It's just pushing the fuel back into floatbowl. They only need one carb before the turbo. This was done on snowmobiles back in the 90's for boondocking.

@mikepoole2248 4 года назад

Just a couple of kids trying to figure out how to make something work. Kudos to them. Instead of people criticizing their work they should give them tips to make it better

@thatbuelldude189 5 лет назад

I have envy of that rotary

@billallen4793 5 лет назад

I have a 75 rotary Suzuki really cool even to just look at.......from Wyoming USA 🔫🤠

@cafn8ed74 5 лет назад

Can't wait to see the rotary running.

@sylvainpelletier5808 5 лет назад

install both carburettors before the turbo, and both open at the same time ;-)

@islandnite77 5 лет назад

Carburetors are draw through, and when the turbo pressurises the carb it pushes back the fuel back into itself and the gas is coming out the overflow. Only put the carb pre pressure or before the forced induction. Like most other people have mentioned.

@harveywhite3001 5 лет назад

It's like a turbo version of v-tech

@j.amorse2463 5 лет назад

Nope lol

@Gunner.Austin 5 лет назад

You should ditch the second carb on the turbo and run pre turbo water/methanol injection, make a intake for your turbo and mount your nozzle, mount your pump and tank. You should be able to use vacuum pressure off the turbo (not the wastegate) to tell the kit to come on and off under boost or run it off a push button/wide open throttle switch. The kits are easy to wire up and modify to work for about any set up

@beastdrew2461 5 лет назад

You need to put a live rear axle on that

@galipeau169 5 лет назад

How do you call this a win..... there is no words for this..... just wow

@jayventransportllc 5 лет назад

Why are you all youtubers trying to make carburated turbo karts?...KIDS TIME TO GO EFI.

@yur1831 5 лет назад

Agree, i Can't blame them for a 2 stroke, but a carburated industrial engine sucks balls with a 3 hp

@frigglebiscuit7484 5 лет назад

draw through carb works just fine. stfu.

@benjaminfranklyn604 5 лет назад

efi kit are not cheap for small engine,i was looking for one for my gy6 and was around $300 to $700.the only way to get one for cheap ,might be off a grom. turbo are cheaper than a Efi kit.

@pauljs75 5 лет назад

Because nobody wants to deal with a $10 USB to RS232 adapter to use the cheaper and older version of Megasquirt. (And perhaps running XP virtualized to run the software?) So they look at the most recent version of the Megasquirt (which is over-featured for the task) and it's $500 more expensive than they want to deal with.

@kleetus92 5 лет назад

The main reason is forced induction will make more power than EFI. Put them together sure, but not just EFI by itself...

@gruntlima6845 4 года назад

Smart young guy, suggestion put your skills to work where they will make a difference beside the search for speed. Don’t get trapped, go serve your country and they will put your skills to work where they really will make a difference. Regards an Respect

@bradygd 5 лет назад

u cant pressurize that after turbo carb u need just the one befor the trubo and get rid of the after turbo carb and jet the befor turbo carb

@TurboTeaBagger 5 лет назад

You can't draw through a carb with out risking blowing up, you need to make a small box around the blow through carb and have that pressurized as well. It will not work right unless you do that.

@ROTAXD 5 лет назад

JoeGrand sure you can. What needs to be done is to just use/have the throttle plate in use on the draw through carb and add fuel after the turbo (also called fuel injection).

@TurboTeaBagger 5 лет назад

If your using a traditional carb.the easy and best way is to be pressurized on the out side as well with the boost. Other methods may have different. Needs, like 2 carbs wtf. I was talking about this one in particular, and blwing hot air through a carb is different than blowing fuel through a 1600 degree turbo. You run that even leaner and say good bye to you head that's a foot away.

@kleetus92 5 лет назад

@@TurboTeaBagger Do you have any idea what you're talking about? the only side that's 1600 degrees (and even that's bullshit because the aluminum wheel melts as 1200) is the exhaust side. You better not have fuel over there. Seriously, wtf...

@TurboTeaBagger 5 лет назад

@@@kleetus92 . Yes I know what I'm talking about, most cars fun egt at 1000- 1200 degrees. Gas flash point is in the 200s ignition is 495. So running lean and hitting 1600 on the output side is very possible , its possible to get 500 degrees on the intake side quite easily and fuel puddling on the compessor housing spells horrific backfires. Look at the draw through carb on the 🍋 s most ended very bad. . Now put that a foot from your head.

@merlin4809 5 лет назад

In our modern age where every young person just wants to dick around with computers, seeing two guys experimenting , getting it wrong and keep trying makes my old grease pump heart a little warmer. Keep up the good work lads!

@heimlichhotrods 5 лет назад

Nice work guys I have full confidence that you will figure it out keep it up 👍👍🚗💨💨💨💨

@WelLRoundeDSquarE 5 лет назад

That air jet you just blocked is where it starts to aerate the fuel by forcing air into the needle jet. I helps atomize the fuel I.E. efficiency.

@lolearllol 5 лет назад

Just get a fuel injection kit and do away with carbs.

@johnathanmiller2222 4 года назад

If that carb setup is working for you fuel wise you could remove the butterfly from your "boost carb" and use it solely as a fuel carb...then hook them both up to the same throttle maybe with a vacuum actuator running in reverse (full vacuum is "closed" wide open is "open") on the boost carb...just a thought for ease of use and tunability

@unclemuir 5 лет назад

I don't see a reason for 2 carbs. Kiss, keep it simple stupid. You are creating more problems for yourselves. Start with small amount of boost and work up from there.

@paulkanarios202 5 лет назад

Uncle Muir he needs the second one so he can get enough fuel

@paulkanarios202 5 лет назад

Uncle Muir they should both be before the turbo tho

@danpmatz 5 лет назад

@@paulkanarios202 put bigger jet in carb

@JetSkiBuyFixPlaySellChannel 5 лет назад

Use a bigger carb not two! Sheesh.

@DAVIDISEPIC1111 5 лет назад

Dan Matz then its gonna run rich at low rpms

@frankw1063 4 года назад

Motorheads have been converting NA carbs to blow through carbs for decades. Its very simple. Trick the carb into thinking it is acting as a naturally aspirated carburetor. You will need to: -Block off the carb vent/vents -Pressurize the fuel being sent to the carb and place an in line fuel pressure regulator controlled by boost pressure -flare a copper pipe placed in line after the turbo and before the carb (like a pito tube) that creates a slight pressure drop then run that line to the float bowl (same sensing line as for fuel pressure regulator) so that the fuel in the bowl is pushed into the "jets". -advance timing. -install blowoff valve and a wastegate -Run premium so you dont blow yourselves up and dont go above 7psi of boost without an intercooler, lower compression ratio or forged internals.

@noticethenelsonsyet8790 5 лет назад

Make it live axle

@jasondreckmann3396 5 лет назад

Run a line from the intake to the fuel tank vent hose to give the fuel some positive pressure. Maybe if you do that you could use the single blow through carb(with or without the screw to plug that hole).

@briansvlogs16 5 лет назад

Why wouldn't you just put bigger jets in the carburetor

@adamfisher4049 5 лет назад

Brians Vlogs it will run super rich when idling.

@RecklessPlayers12 5 лет назад

not if you just put a bigger main jet in it

@briansvlogs16 5 лет назад

Yeah I guess it would run super rich when idling, I was thinking about when the engine was at higher rpms

@kleetus92 5 лет назад

@@briansvlogs16 There's an idle mixture screw isn't there? set that one tight and set the main. Not understanding where the problem is...

@juhomaki-petaja 5 лет назад

Fuel has no pressure but there is pressure in carb venturi? What do you think what happens? Does bigger jets or idlescrews help?

@Blurgamer17 5 лет назад

If all else fails: -Turbo Intake directly into a throttle body -Fuel injectors @ 200CC+ Sent in JUST before the Internal Combustion manifold. Turbo Exhaust Manifold

@alexmarti9011 5 лет назад

Turbo exhaust pipe diameter needs to be increased for better turbo spool

@garyjones122 5 лет назад

Not true I'm afraid. Smaller diameter equals faster spool, larger diameter equals more topend. Their are calculations to work it out.

@philtripe 5 лет назад

i think Gary is right...just imagine if the pipe was fifty feet wide, how slow the air would move

@garyjones122 5 лет назад

@@philtripe youre absolutely right. It's explained by the Venturi effect.

@williamkillingsworth2619 5 лет назад

Actually Alex is Right, the exhaust pipe is after the turbine, so you want it open. The exhaust manifold is where you want small, before the turbine to keep velocity and heat up. The turbine is the restriction, after the turbine you want atmospheric conditions, so yes that small ass pipe is too small. I had a Rx7 making 450rwhp out of a 1.3 liter engine. Gt35r 20psi... I know I am right.

@garyjones122 5 лет назад

@@williamkillingsworth2619 😂😂 you are right about the manifold part and the turbine being a restriction. My point was that bolting the biggest diameter pipe you can find on it does not equal more spool, it will move the graph closer to the right. A calculated and correctly tuned exhaust will give maximum spool and an optimum powerband in a required rpm range. I tested several turbo back systems on my car when struggling with a restriction problem and a 2.75" milltek out spooled a 3" milltek by 300rpm on the same afternoon on the same Dyno. It dropped around 8hp to the larger diameter. The 2.75" was resonated, the 3" was not.

@kemottomtr Год назад

there are 2 ways to do it correctly: 1 carb mounted to turbo inlet and jetting it just right. The turbo will suck air and fuel throught carb. In addicion evaporating fuel will coll down intake tube so no need for intercooler 2. Blow-through application. In order to work you'll need special carb and fuel supply pump that delivers at pressure about 2-3 psi higher that boost pressure. Mikuni carbs that you have will just leak from every gaskett possible and boost pressure will cause fuel to return to the tank.

@mikecorleone6797 5 лет назад

Also take that other carb off.. that second carb at the base of the engine isn’t designed to run under pressure so it’s blowing the needle n seat open forcing it to flood.. it should run just fine with the carb that’s attached to the turbo. That’s a draw thru setup

@josephnommensen4025 2 года назад

Regulated fuel pump to the blow through, get rid of the rest. Keeping it rich keeps the motor safer so extra fuel is not a bad thing esp. when the boost comes on. I know it's late but this video was suggested to me today.

@autowa3640 5 лет назад

You can't pressurize a carburetor like that. Ditch the old mikuni carb and run the electronic one between the turbo and engine. You guys make things way to complicated for no reason.

@michaelbenedict9549 5 лет назад

There is such thing as a blow through carb. Doing a draw through would be so much simpler though.

@clarenceswope3026 5 лет назад

I love the old 67 to 72 Chevy sitting in your driveway I love that old girl I used to have a 1970 C10 dad had the 68 C20

@marcusplywooder1907 4 года назад

You guys are trying to re event the wheel

@bradleylong3466 4 года назад

Bet BoostedBoiz turbo shopping go-cart would take it. But never the less this is bad ass better than I could do.

@gabrielibarra5551 5 лет назад

789th! I just saw the last vid on the turbo kart 1 hour ago lol

@brandonjustice3631 5 лет назад

Mini rotory gokart such a bad ass idea

@whozaskin3639 5 лет назад

800 for efi? Lol I could do a car for less. It's called a junkyard, ohms law, and an Arduino

@mattcherrier6364 5 лет назад

What would you get for management?

@danielvicars2920 5 лет назад

I've seen way too many people fail at this it needs a blow threw setup with a box around the carb and a fuel pump so it doesn't just blow bubbles in the fuil tank on boost

@DawgYa1 5 лет назад

Guys the single carb will work. In a blow through.The problems is it needs a fuel pump to overcome the boost pressure. Under boost the gasoline is getting pushed out of the carb. So the fuel pump has to produce one psi of fuel pressure for every psi of air pressure to run correctly

@Y2daT420 5 лет назад

on a push turbo/carb setup. in order to keep the fuel flowing u connect boost pressure to the fuel overflow on the carb ..this makes the bowl and internal carb pressure equal allowing the fuel to flow correctly and increasing fuel flow under boost

@alecfleming373 5 лет назад

Only down side is the advertised garbage. Hand's down, top channel right here

@paulazcona1358 5 лет назад

Use a single carb (the mikuni or a slightly bigger mikuni) before the turbo. Make sure the turbo to the engine pipe is completely sealed, engine vacuum will pull the fuel/air mixture throught the carb and then turbo. Car guys in the pre-EFI days used this Draw-Thru system. Thanks.

@extremedrivr Год назад

Nice build guys!! Spool it up baby!!

@fm9572 5 лет назад

The mikuni is set up for normally aspirated flow, and not turbocharging. If you buy a carb setup already for boost, it will run much better, and you'll only need one carb and throttle. And it's cheaper than you think if you Google fu around. Great job on the fabrication and concept.

@heru_ur6017 5 лет назад

Dont need that second carb after the turbo, just run one before the turbo. Since your running suck thru as the turbo sucks more air to make boost the carb delivers more fuel. And since your using that pre fuelled air it doesnt lean out. The a/f going into the turbo stays constant.

@thegenerousdegenerate9395 5 лет назад

Single cylinder carberated turbo running clean. I dont know if thats a first but its the first ive seen it work. Good job guys. I hope you get this runnin smooth. That'd be pretty cool and not a bad claim to fame for your channel.

@aaronjohnmaughan 5 лет назад

A blow through carburetor needs to be mounted within an air tight chamber that allows for pressurized air to not only flow through it, but to also surround it. The problems you are experiencing are due to air pressure differential. Think about how a carburetor functions through the use of venturi effect PULLING fuel through a small hole. When you pressurize just the intake runner, air is now PUSHING back through that same little hole, rendering your second carb useless. Surrounding the carb with a chamber that pressurizes at the same time as the intake tract will restore the second carb to proper function. You effectively create a small, controlled atmosphere for the blow through carb. Tricky to fabricate, but VW guys were doing this to the Beetle back in the 80's. It works.

@jslugbug37 5 лет назад

Great craftsmanship

@ChristopherGaul 5 лет назад

Guys. Carbs meter fuel based on sensed vacuum! You're pressurizing the second carb. Lookup some old car magazine articles on (single) carbureted, turbocharged engines and how you need to mod the carb for use with a turbo.

@DavidHoskins 5 лет назад

A couple of things I noticed: 1. You absolutely need to remove the governor from that motor. There is no way you'll get usable boost from an engine that only rev's to 3,600. Being a single cylinder engine turbo is less efficient (because you are spooling up when the intake valve is shut) you'll not get meaningful boost till 4k-4.5k RPM. 2. I'd highly recommend using a cheap homemade efi setup. Google "Arduino cheap small engine efi" if I remember correctly you get a working efi for under $100. If not you should really run an Arduino with an oxygen sensor and lcd display. That way you'll know if you're too lean or rich especially with the 2 carbs. 3. If you're dead set on running two carbs the way to go would be use the standard one on your intake (carb 1) for throttle, with your second carb (carb 2) wire it so it's wide open all the time but is only getting fuel when you go beyond 1/2 to 3/4 throttle.

@DavidHoskins 5 лет назад

Also don't apologize for a video under 15 min long. If someone has a problem with a 15min video they should apologize to you for having the attention span of a gnat!

@joehughes5177 5 лет назад

Also you can build a chamber around the carb- pressurized air surrounds the carb to prevent pump out from carb vent

@niclmaoo 5 лет назад

That is one extremely rare little rotory engine

@dylanbatie1545 4 года назад

There's a guy in Edgewater FL that restores old bikes and probably has 15 complete Hercules and a dozen engines

@jdubin660 5 лет назад

I would simply take the centrifical clutch & weld a pulley with a shaft to keep it away from the chain and sprocket and figure out a way to put a pulley on the end of that turbo to make it spin so therefore you can steal route the exhaust into the turbo and force it back through the intake if you get what I'm saying

@caveman6345 5 лет назад

You will need to build a synchronized throttle linkage to open the carbs the same amount at the same speed.

@specforged5651 5 лет назад

Just the draw through system by Itself will work just fine. You may need to figure out a pressure activated fuel advance flow system, but that is easy as well. Just a simple Hobbs pressure switch and fuel accelerator pump will work on this. We did it for years in our sandcars with Volkswagen engines.

@tfleming3567 5 лет назад

Dont know if youve thought of,it...run 1st throttle body (N/A) like a lawnmower throlltle cable so you can set and forget the first throttle,and set the 2nd turbo throttke to the foot peddle

@mrmtn37 4 года назад

Accelerator pump guys! You only need a burst of gasoline until the turbo makes boost and in turn makes the system more efficient. You will require more fuel but not 2 carbs worth.

@SkypowerwithKarl 4 года назад

The only thing you need to add now is a roots style supercharger and a double shot of nitrous. Oh, flame suit not optional.

@tempernova8951 2 года назад

"Our faces- YEEEAAAH BUDDY 👹"

@mattyadarab 5 лет назад

The carb works because the low pressure in it helps to atomize the fuel in an NA engine. If you have a boosted engine you have to overcome the boostpressure, (that basically means use injectors or pressurise the fuel somehow), or use a wet system like you did, but without the useless second carb on the intake

@NSXTACY420 5 лет назад

Great work! And nice fabrication skills! One thing i would recommend is get rid of the second carb after the turbo, like many others have said, and then tune the TCT to very rich and then take out fuel as you go. It will keep your engine nice and safe under boost and then lean it out for maximum power. Maybe even get a cheap wideband o2 with a gauge to monitor the air/fuel ratio.

@josephnommensen4025 2 года назад

The rotary got me

@jamest.5001 5 лет назад

If you do the blow through. You need to boost reference the fueltank. Or pressurise the fueltank with the boost psi.

@jeeg7204 5 лет назад

You need to put the turbo onto the intake or make it much closer. the shorter the intake and the most direct flowing is what’s going to work, then use one carb that the turbo will pull fuel and air through.

@balinghoyproductions6845 5 лет назад

Damn that rotary engine, can't wait

@omarlopez26 5 лет назад

I recommend sealing the fuel take and adding a fuel reference line to the take and only using one carb the one with boost.you need to add 6.8% more fuel per psi and since the carb you are using does not use pressure 1 psi is 6.8% more fuel.when there is no boost there will be the same amount of fuel as normal and it will use the boost referenced line as a breather.

@MrSaaadpanda 5 лет назад

what you need to do is make a one way valve on the NA carb so that when the boost starts building up it shuts off the NA carb so that it runs off of boost only carb and it wont run rich and shut off the engine

@robertoakley329 5 лет назад

Just mount the turbo output to the head intake, then mount the carb to the turbo intake, plumb up the exhaust and run it, if turbo lag is excessive drill a very small hole above the intake port of the main jet . Start very small like 1/32" or less and should be above the fuel level in the bowl. you want the positive intake pressure to find its way into the bowl to force th fuel through the jet.

@bradwilliams3711 5 лет назад

These guys could have a big future with an f1 team

@millsie2 5 лет назад

It was on the brink of explosion... “that’s a win” 😂😂😂

@NeoIsrafil 5 лет назад

Vacuum sensor to tell how spooled it is, arduino to control it, servo to add gas as needed.

@AreYouHaveStupid1 2 года назад

I love rotary engines and I have a 960HP one in my AWD FD

@polaris6644 5 лет назад

Run 2 Carbs parallel, one has boost going in and one is NA. Have them go into a Y-Pipe. When you start making boost, or about half throttle, have the NA carb close and choke on. fuel lines should be blocked off. Which then would seal in some boost, and might hold enough of the boost. when the NA carb closes the boosted one should be wide open so the boost will be flowing in. That also means no Lag.

@buckykattguitar 5 лет назад

Draw through is the way to go. You’ll need a fuel pump that pushes MORE pressure than the turbo itself, otherwise, under boost it will push the fuel back out of the carb. I built a turbo beetle back when I worked for fisher buggies, 2332 with a single draw through carb. 390 wheel horsepower.

@xEquinox 5 лет назад

You guys should do that small one then keep putting bigger turbos on till it’s in like 50-60mm turbo then start breaking things with boost just gonna take a lot longer to spool