TURBO ROTARY MINIBIKE gets a Carb and Charge Pipe! Episode 2

[@BuildBreakRepeat]

***This video was filmed the same weekend as Episode 1 so we haven't had the chance to address the problems with the oiling system yet or the comments and suggestions from last video. Episode 3 we will get it all fixed up but we wanted to show you the progress we made before we had to head back to college. Thanks for watching and stay tuned for episode 3!

[@kgb5223]

It's gonna be sooooo cool once ported and turbo'd ! Can't wait for part 3. You guys are incredible.

[@m5a1stuart83]

Do you have any two stroke turbo?

[@2strokecarbtuningportingin187]

@@m5a1stuart83 turbos are turbos no special turbo for two stroke. No single cyls 2 or 4 strokes work so well with turbo

[@m5a1stuart83]

@@2strokecarbtuningportingin187 what about DKW Two Stroke Turbo?

[@tylerkwiatkowski3757]

For the turbo, I noticed that the wastegate is blown open at about the same pressure as with the feed line on my kart. Which is at about 6.3 to 6.5 psi of boost.

[@rustyshacklfort9508]

1. Carb spacer 2. A better charge pipe 3. That little Dorito is just begging for a good port job .

[@miles1571]

Honestly just shut up..... you didn’t buy it, you don’t get to choose what happens with it

[@CR4ZYxRY4N]

Finally something I agree with

[@chapzer6686]

Miles Swanson bro why you being an ass for no reason. His comment was hardly hate he’s just giving his thoughts on it.... grow up

[@nick044]

@@miles1571 honestly nobody asked you bud. Dont be an ass

[@DR.P3RKY]

Rob dahm will be happy

[@112fail]

im kinda suprised rob hasn't commented on this channel yet.. if he has then im missing something

[@branthaight1366]

Rob would want a quad rotor on it

[@InsideOfMyOwnMind]

@@branthaight1366 Is he the guy that put a rotary in a Corvette?

[@zeanyt2372]

@@InsideOfMyOwnMind yes. He's also working on a 4 rotar C8. So essentially a modern Arovette.

[@adamr9215]

zean's mods I wish that idiot would stop ruining good cars with junk engines. Keep that import junk out of real cars.

[@fxtacy]

should have added phenolic spacer between carb and turbo to allow space for wastegate fitting.

[@johnrodknock954]

Turbo has built in waste gate, if they ran a fitting into the carge pipe it'd work properly. Granted a spacer would make for better fuel and air mixture when hitting the turbine

[@fxtacy]

@@johnrodknock954 there was a brass fitting on side of turbo that had a vacuum line that goes to the wastgate actuator. i.e. positive pressure side of turbo, which connects to the charge pipe. They disconnected it because the carb wouldn't clear the fitting/vacuum line. Which disables the wastgate. Thus the suggestion for the spacer to allow clearance and actually be able to use the wastgate.

[@fxtacy]

@Heads Mess why? Depends... You want to have a way to control boost or just see max boost you can make and roll the dice how long the rotary will last.

[@Watchmedome3017]

Not enough boost for a blow off valve you mean. Because the turbo has a waste gate already.

[@DrGibs347]

You can still have a wastegate.. just put a barbed fitting on the boost pipe and run a vacuum line from the wastegate actuator to the barbed fitting.

[@Hitycooking]

kzbin.info/www/bejne/m2HEg3WLoZJmf6c

[@thisislargemouth5566]

He could have also made a spacer and been just fine. *Edited spelling error

[@DrGibs347]

@@thisislargemouth5566 i think the k.i.s.s(keep it stupid simple) approach works better.. but what do i know im just a seasoned mechanic. You know, work smarter not harder.

[@thisislargemouth5566]

@@DrGibs347 I meant could by the way. also, a spacer is very simple in my opinion. Then again, what do I know? I just run a small engine repair shop. There's several ways to skin a cat my friend, no need to hurt yourself stepping off of that high horse.

[@cloakdaggercustoms3903]

79707 I’d just worry about over boost issues. Obviously, for simplicity, this is faster. But if the option is there, I’d take it.

[@978twostrokegarage2]

Every rotory enthusiast would definitely be impressed with this awesome build. Great job 💪🏻

[@DrGibs347]

That charge pipe im pretty sure its Not fuel rated... your engine may end up ingesting desolved rubber.

[@dominoespizza1756]

It wouldn’t be a problem if they put the carb after the turbo and rubber hose, and they would be able to use the stock waste gate position

[@StroDshiesty1]

Gabe Lackman not needed bc its draw through

[@haydentakara4369]

@@StroDshiesty1 he’s responding to the dude who said to do a blow through.

[@drakrazerclaw5146]

Run two stroke oil in the gas, your apex seals will love you for it. Check RX7 sites to see if there is a recommend ratio, but you'll also likely to need just a hair bigger jet to compensate.

[@drewtooker4243]

Carb spacer would solve the wastegate problem

[@KillaMTB]

Can’t see this making boost without porting and a proper metal boost pipe but I really hope it does that thing just looks cool with the turbo on

[@hankdoral]

Have I told you lately that I love you? Go,Go Rotary!

[@bighomieJ5X]

I cant believe this worked ,.. excellent job guys .. cant wait for some fly by vids

[@davidtaylor9508]

You will need to "boost reference" your fuel tank so your fuel pressure increase as boost increases, assuming it makes any. Simply tap your boost pipe and feed back to fuel tank. Also you will need to use a one way valve for your fuel tank vent. Good luck, neat build! And you might want to reconsider hooking up the wastegate, you can use the same line.

[@funnerthanbefore4947]

Something I just thought of, flat slides don't return well, IF the turbo has the boost power, it'll keep the flat slide open...

[@ricbaker4739]

How can anyone not love this thing?

[@BigMacBook1300]

Why didn’t you get a carb spacer?🤦🏾‍♂️😭😭

[@dadud3]

or clock the turbo upside down and make a shorter run above the engine with the intake pipe

[@zeanyt2372]

Or mount the carburetor to the intake pipe! That would have made the throttle response better and would not have been putting gas all over the insides of the turbo.

[@samurboi8007]

@@zeanyt2372 im sure they just want it to run right now, they can work on the technicalities afterwards. Noone wants to go through the trouble of an engine not starting after working through all the steps in theory

[@zeanyt2372]

@@samurboi8007 I agree. But it seems like it would have been easier to do it now and not have to go back over there work later.

[@samurboi8007]

@@zeanyt2372 yeah

[@systomattic8469]

The bike looks awesome as is. I dig the slight patina. I hope you guys know what you're doing with the addition of the chrome 👍

[@MayheM_72]

I guess "Yama-bond" is like "Honda-bond"? (I work at a Honda dealership...lol) I still say you guys have the best channel name on KZbin!

[@shaunpc2512]

I have to be honest guys that sounds freaking awesome, now all I hope is that it the goes as well as it sounds. Good luck guys, I’m hoping that the recommendations others have given help you get this sorted but for me I would want the boost pipe to be metal and fuel resistant silicone couplers art both ends.

[@kfardink9146]

Very cool build! Interested to see it as you incorporate suggestions!!

[@jtothefx]

Well Done! I got km24 going to build it into a power wheels body. Your video was very helpful. My input for your build, try putting the turbo on the boosted side of the turbo. Less distance for the fuel to travel.

[@michaelblacktree]

I'm surprised you didn't make a carb spacer. Anyway, this is a pretty cool project. Thanks for sharing! 👍

[@DavidVanSickle-u8u]

And mosr people blow out turbo oil seals . All you need is a fatter drain hose fitting. Usually turbos can handle plenty of oil pumping into its bearings but when it cant drain fast enough it leaks past the seals. Its harder on your oil pump and gaskets/seals when you restrict the pressure side. Have fun !👍🏻

[@pvc988]

Mounting the turbo rotated 90° around could make it possible for the carburator to fit better (on top of the engine).

[@carbonconnection2480]

Felix Wankel would be thrilled. 💪💪💪

[@LoneRevD]

Boost gauge could be fairly easy, another metal pipe in the charge pipe with a fitting in it. Only have to cut a small section of rubber hose out to put it in. Just a thought, this is cool!

[@ThriftStoreHacker]

Keep an eye on that boost hose. My concern is that fuel could collect in the hose, It could collect enough in there to randomly hydrolock the engine. You should try mounting the turbo closer to the intake port, could keep the turbo cooler and prolong its life.

[@Avetho]

The charge pipe needs to be metal so it doesn't break down from fuel residue, but it also needs to be a straight downward shot from turbo outlet to intake port with a bypass valve (like a BOV) connecting the turbo outlet to the turbo inlet to regulate the boost pressure. Boosting a carb engine is difficult and this is a draw-through so hopefully their turbo is one with carbon seals, else it'll end up breaking. Edit: Clarified which outlet and inlet I was talking about XD

[@castin5244]

I feel like the fuel is going to pool in that "charge pipe" and cause oil starvation problems. Which could also lead to problems with fuel eating away at the rubber.

[@dominoespizza1756]

I was thinking the same thing plus turbos normally don’t have fuel running through them

[@theozman38]

You guys rock at building rocket pocket bikes. Lol. Good video guys🔥

[@simonyun1883]

Dude, u’ve gotten the turbo oil feed and drain backwards, the threaded smaller port is oil inlet and the big port with flange is the outlet, try clock the core 180 degrees. This definitely helped me with my turbo leaking a lot of oil, but my turbo stops spinning when I turn on the oil pump, and it still leaks a small bit...

[@Mish93Will]

You guys can weld so a nice steel charge pipe would work a treat! Looks awesome as is already though. I would turn the little carb adapter back the other way and route the boost pipe over the top with a 180 to the intake port. having the boost pipe in between the chain will be such a ball ache.

[@jamesgodwin4437]

I hope the hose is temporary. The fuel will probably cause deterioration as well as you'll lose boost pressure to it expanding.

[@northernatvs2425]

Hi @BuildBreakRepeat 👋

[@That_5.0_Ranger]

Rob Dahm needs to get in on this.

[@fredericrike5974]

First Comment; College is cool- your YT series after that might be designing high efficiency small vehicles to explore the Moon or Mars, Second; same as the first! Third Comment; rotate the turbo, where it sits, about 30 or so degrees clockwise as you look down on it- it should help clear the riders position- then a nice rigid elbow to put the air cleaner just below the tank top. And get those degrees!

[@Kane-O-Mansfield]

Smaller sprocket on the back for more top speed with all this BOOST!! Awesome build 🤘🏼 probs doubled the Hp

[@mopedmessiah]

Its a turbo Dorito.....A TURBORITO!!

[@thedancingpickle6362]

Dorito mobile

[@HeartLessGem_]

You guys need to have it so the charbi is blow through, just so its easier to run and so you guys can run the waste gate, you could weld the waste gate open just a little so it free boosts but i wouldnt recommend, can boost creep and blow apex seals if done wrong, plus if its turbo, you guys could run a screamer pipe on it and put a long metal tube on the inlet of the turbo for maximum "dose" / turbo flutter 🤷🏽‍♂️ just a suggestion boys 🤙🏽

[@CarbsAndTurbos]

You Have oil going in the drain side of the turbo and its coming out the in. You need to turn the cartridge around

[@gloriousn]

You guys should make a small little intake manifold maybe make a little elbow so that you can hook up the waste gate and get the air filter out of the way so it doesn't stick straight out

[@Jazsft]

Now it just needs some castor and e85 and she’ll smell even better 😍👌 should weld the flap of the waste and mount an external wastegate on the exhaust housing and run a screamer pipe 😝

[@bryduhbikeguy]

That's so Sick guys! She's a Ripper.

[@abrahampeshko1858]

Thanks for the video

[@minor0confusion]

still got the feed and return oil pipes backwards dude.. wont smoke like f if you fit the turbo correctly LOL also, that port doesnt line up when you flip the manifold over.

[@Hermiwalle]

Yeah it’s really obvious to anyone who isn’t a smooth brain.

[@Watchmedome3017]

Team booted bought a one rotor kit. It’s used the front iron and rear 13b iron and rotor and it’s a single Eshaft it’s so cool. I’m sure you guys can put it in something cool like a bigger go kart.

[@finneganfun2705]

That sounds so cool too! braap braap!

[@wyattscott8745]

Add a petcock at the back of the fuel tank and run a hose from it T'd in with the existing hose. That will solve your fuel issues while the front end is up.

[@ettumama]

The old "handful of gas" priming technique

[@danhambrick6331]

Nice job guys....

[@davenorman8251]

Does the pulse pump signal still work with forced induction, is it vacuum driven or via rotor displacement somehow...guess your gonna find out.

[@bigcheifer44]

Rotary and turbine = fun

[@Nico-ds9nz]

These bike is so cute 😂

[@mrc.8288]

You can run a line off the intake any where for the waste gate. The turbo pressure runs the w.g.

[@jtothefx]

I love gasket maker!

[@pckhalib2220]

That rotary sounds MINT favourite noise

[@griffinoneal1856]

Simply amazing

[@sprocket0174]

Love the amazing view keep up the good work boiz!

[@Phil-rs5wl]

Now you need to pull apart the engine and port and polish it, that thing has the possibility to scream.

[@Tampaboys]

Heck ya guys great job this thing is purring like a kitten very nice

[@limpkit2011]

Great Job Guys

[@Headerflame]

Nice work guys!🤘🏼

[@Hitycooking]

Good job brother 👍👍👍👍

[@terryj257]

You guys should change your black rubber, "charge pipe", to a clear one. You will be able to see it it gets fuel resignation at the bottom of the "U".

[@Avetho]

It will get puddling in the charge pipe, every draw-through turbo system has that problem if the charge pipe goes upwards too far. It has to be as short as possible, made of metal that won't break down like rubber does with fuel residue from the air-fuel mixture, and it must slope down from the compressor outlet to the intake port. Plus, a rubber charge pipe will just expand from the air pressure and lose some boost and some throttle response.

[@EdWolfram]

Plug the hole for the waste gate you removed. Probably already did if not big boost leak or no carbed air equaling lean and the high idle.

[@Nunya_Bidnez]

Coming along nicely boys. I think you should by some plastic plugs for the front of the seat frame and definitely chrome the pull start and fan shroud. I would just hi heat spray the rest of the engine black but that's on you. I bet you some braided hose would look amazing on your turbo.

[@homelessdrifter9508]

You need to have the carb after the turbo for more consitent and more boost, also your going to get a better flutter with the turbo before the carb

[@geoffreyjones2000]

Recommendation: drag bars :) yup

[@siahboi0227]

Supercharged gokart built

[@DieselsandOutdoors]

It sounds so good

[@simonyun1883]

Why not a blow through? I’m planning to pressurize my Mikuni’s bowl with the waste gate pressure pipe on the turbo, and plug some holes on the carb it self

[@MrMatthewb9876]

Or just box the carb so the pressure is equal inside the car and outside

[@juanmangerita]

Where can i find an engine like the one in minibike?? Anyone?

[@Namesakes.unit-x-10sq10]

If you are gone run it draw through you should instead use a cv carburetor (24mm cvk?) and remove the throttle plate in it and instead use some sort of throttle plate or slide on the positive pressure side, that way you don't ruin the turbo seals when off the throttle and the turbo would last a lot longer.

[@joshuasimmons7737]

You should put the charge pipe going to the other side of the motor so the you don't have to worry about the chain rubbing it

[@dj13yrs1]

You need to open that port up on the adapter it is off set and you turned it so now it is even smaller....

[@wrenchinrust4741]

How much hp do you think that thing puts out? Awesome build!!!! And where/what did the engine come off of?

[@Watchmedome3017]

Rotaries will make boost because every stroke is a power stroke. So it’s 3 pulses.

[@raffertyhouston1859]

make the charge pipe smaller, its response will be quicker please do it!

[@thedge7]

Okay, cool. But I've got to ask, who drives the Shelby?

[@StraightLineCycles]

Looks really freaking cool.

[@nashguy207]

You guys are awesome!

[@quevicular]

BOOST gauge NEXT GUYS.

[@rocknroll1753]

Pull the motor and port it, looks good tho 👌

[@051570orion]

Could you make a spacer ? If you make a spacer for the carb , you can hook back up the waste gate

[@hunteralley490]

Yessss

[@Hitycooking]

kzbin.info/www/bejne/m2HEg3WLoZJmf6c

[@Leadfoot_Ed]

Anyone see sparks at 6:27?

[@dondrebwood8355]

Now I kinda wanna see N/A with the bigger carb

[@smitch260]

No waste gate means as much boost as that turbo can put out. Better to use the waste gate if possible.

[@matthewanderson7766]

Its sick needs a exhaust pipe but besides that awesome

[@nikohokkanen3343]

you have to dyno it when it's ready

[@jimsaquatics]

Very sweet!

[@levisylvester]

This Rotary Runs better than My Gx200 😂

[@K_Nasty]

Put RTV in between the carb and the turbo too

[@dandil]

you need a throttle body AFTER the turbo. If the turbo inlet sees vacuum you'll pull oil out of it's core and it'll go into the intake. The carb has to be before the turbo, otherwise boost will lean it out. Basically you need to not use the pre turbo carb throttle, and instead add another one after. Take the hose off and inspect it for oil if you wanna see for yourselves. Awesome work otherwise, you guys are awesome! :D

[@bryduhbikeguy]

It's a 2-cycle.Oil is what it eats.They did the turbo gocart and fuel inject was a Pain.Watch the series.It's kewl.

[@charlieliddell3978]

Super cool love Rotary’s great job guys.

[@dandil]

@@bryduhbikeguy it's kind of a 2 stroke. If oil is just being sucked out of the turbo then there's no metering. If you snap the throttle shut at high RPM you might hydro lock the engine with oil. Come to think of it, the intake hose might collapse first and just stall the engine. Hard to know which is more likely without testing

[@2dforlife549]

You guys can actually add the waste gate off you add a spacer

[@broo_shs]

by to way some engines even small ones work with turbo added like they normaly is ---> you must try it

[@woodstar2722]

Nice!

[@mikebarrett3428]

Make a spacer so you can use the blowoff valve.

[@IllegallyAcquiredKIA]

You going to need Huge jets to compensate

[@Zantrop64]

Hey if this is the same model Sachs engine, do you think you could turbo the Wankel Go kart next ?

[@Hitycooking]

kzbin.info/www/bejne/m2HEg3WLoZJmf6c

[@Zantrop64]

@@Hitycooking so, yeah that's cool and all, but it's not turbo Wankel powered, and not a Go kart, so why ?

[@Dan-kz6dz]

Cool video

[@Hitycooking]

kzbin.info/www/bejne/m2HEg3WLoZJmf6c