TURBO ROTARY MINIBIKE Ep.1 | Mounting the Turbo!
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- Опубліковано 21 вер 2020
- RHB31 VZ21 Turbo - Amazon Affiliate link: amzn.to/3mMWAAu
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Time to Turbo a Rotary! We have been wanting to give turbos a second shot and figured that the rotary minibike would be a pretty good candidate. We removed the stock sachs KM48 carburetor and started to put together our draw through turbo system with a VZ21 turbo. We found a pretty easy solution to oiling the turbo by using a GoPowerSports pulse pump as an oil feed pump.
Thank y’all for watching, stay safe, and be sure to stay tuned for the next episode!
-----------MERCH------------
MERCHANDISE CUSTOM DESIGNED BY YOURS TRULY
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--------------TOOLS------------
RogueFab Tubing Notcher
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Pro-tools Tubing Bender
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Optrel Crystal 2.0 Welding Mask
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Optrel Grinding Mask
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---------MUSIC --------
Music - Background and Montage Music Is From Endemic Sounds
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Intro Song - Jimmi by Andrew Applepie
• Andrew Applepie - Jimmi
-----PARTS-----
RHB31 VZ21 Turbo - Amazon Affiliate link: amzn.to/3mMWAAu
Turbo Flanges - Amazon Affiliate link: amzn.to/2ZWbydh
Pulse Pump- www.gopowersports.com/round-f...
Catch Can - www.gopowersports.com/aluminu...
Seat - www.gopowersports.com/19-mini...
Chrome Shocks - www.gopowersports.com/univers...
Chrome Wheel - www.gopowersports.com/6-astro...
Inner Tubes- www.gopowersports.com/410-6-t...
Tires - www.gopowersports.com/13-x-50...
Gold Chain - www.gopowersports.com/rk-gold...
Fenders - www.gopowersports.com/4-25-wi...
¾ Lock Collar - www.gopowersports.com/jacksha...
Brake Band- www.gopowersports.com/5-carte...
Brake Band Pin- www.gopowersports.com/brake-b...
Brake Cable and Lever- www.gopowersports.com/mega-mi...
Jack Shaft Sprockets - www.gopowersports.com/12t-jac...
Jack Shaft Lock Collars- www.gopowersports.com/jacksha...
Jack Shaft (10 inch with lock nuts and key) - www.gopowersports.com/5-8-thr...
Grips and Throttle - www.gopowersports.com/throttl...
Clutch - www.gopowersports.com/10t-3-4...
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Been reading all the comments and suggestions, thanks for all the input guys! Episode 2 will be out next week but it was filmed the same time as Episode 1 so we won't be addressing any of these problems in the next video. Episode 3 we will get everything sorted with the oiling system!
Hi guys, you also need to add a vent to the top of your oil reservoir/catch can so the oil can breathe/flow freely out of the turbo drain (I know all this from low mounted turbos with scavenge pumps in the car world)..here's a link to give you a ideal of what I mean
ua-cam.com/video/xqrWFrz4H5s/v-deo.html
you have the oil return and pressure side backwards!! the threaded end is the oil inlet and the 2 bolt flange is the drain.
CONNECT THE FUCKING INTAKE!!!!!!
V
for the turbo, you need a much larger drain then a feed, your backing up the oil in the turbo causing it to seep past the seals!!!!
yea that`s what the problem is with that and if they want to know how to turbo something they should watch the BoostedBoiz
@i don't believe in the sun yea they could do but I was just trying to help them out that's all
Will do, thanks for the suggestion. We already filmed episode 2 last week and we're back at school so you won't see it fixed in the next vid. Ep. 3 we'll address it and get it sorted
@@BuildBreakRepeat ok thanks for reply and I hope it helps you out a lot with it 😀
Build Break Repeat can u give me the links to the oil system when u get the better one
You should go to a rotary/rx7 meet with it!
This
Agreed
@@2GRFExv20 that
Definitely
Your turbo drain line needs to be bigger, I think double the inlet size and the oil tank needs to be vented if it isn't already to allow the oil to drain back into the tank. The pump is pressurizing the turbo and without a vented tank there will not be enough vacuum to pull oil back in. I would try venting the tank and the drain line may be large enough so you don't have to make new larger turbo fittings.
you need to increase the size of the oil drain, normally it's a hose as fat as your thumb, not that little tiny thing as small as a pencil~! thats why it's pushing oil out of the seals!
Well said I could not agree more
No, they are feeding the oil into the drain side of turbo. Center section needs to be rotated and oil fed into the m8 / 1.25 thread in the top via a banjo bolt.
When a turbo smokes, you don't restrict the oil feed, you widen the return. You don't want to starve the bearings, that is what kills turbos.
It's gonna sounds siiick! R.I.P. apex seals lol
You should be extra carefull with that pump setup- it's possible that it won't work once you get into boost.
Agreed, i think once it goes from vacuum into boost the pulse pump isnt going to function properly, if at all
Definitely, we'll have to do some testing under boost
Rotary vid after new 2 stroke stuffing vid...oh yeah
same
A man of culture I see...
@@carburetedseltzer120 indeed
My sachs says 2 stroke oil (premix)on the tank. Maybe put the pulse pump on the turbo oil return line having it feed a cooler and loose the catch can. An exhaust expansion chamber would allow the gases the expand and add volume to the intake since you're not using a blow through carb. I love this build. Some porting in the turbo housing makes a big difference, sir
Absolutely love both of you have !
Experimenting as you go, and learning a ton along the way !
Keep up the good work gentlemen !
That poor turbo 11:36. I can hear it say, "Oil...I need oil..."
I’m just in love with this little tiny rotary
Oil wiring 😂 I love the new technological terminology.
Keep up the cool videos guys
erm, got the feed and drain backwards dude
This is awesome!!! When it's all finished and tested, feel free to send it to me in Australia!!👍👍👍 Keep up the good work guys.
Cool video guys, would love to see a video, possibly episode 3 or 4 depending on how it goes purely on tuning to carb in for maximum power with different jet sizing, needle positions ect, there's always more power to be made with proper tuning!
Pre mix man to keep the engine going glad you guys are doing this
You guys freaking amaze me every single time.
🇵🇷🇵🇷🇵🇷💯
Love the off the wall builds!
Heck ya guys boosting time so sweet
Ohhh that turbo is so cute 😍
Placing a nitrous jet in your oil feed line is a great way to control flow to the spooly booster. Cool project👍👍
Great job! Love it. I own about 15 of them there mini bikes/ mini cycles.
That's pretty cool guys, enough interest for me to subscribe!
I hadn't seen the video and already hit like. Never disappointed
So now im hyped af!
Keep the RD going ladds , cool!!!
It sounds so sweet
Thanks for the video
Your oil drain is to small you don't need to restrict a journal bearing turbo
@@dipstiksubaru3246 only if you have oddly high oil pressure but anything less than 60 psi you don't need a restrictor, and even then most journal turbos can run at 80-100 psi They're using a pulse pump no way that thing makes anything more than 5psi
yeah you do not need to restrict oil flow. just need to have sufficient drain. 2 things wrong. needs bigger drain as well as a breather on the drain. drain is likely getting pressurized
Gotcha, we're going to add a vent and increase the drain line in Ep.3
Can't wait for the next vid
Pulse pump oil pump! Great job. Might as well use a mason jar so you can see the oil flow. If the seals are blowing past you might want to just use some oil for a diesel turbo rig some 15w40
The drain on the turbo is to small.It should be like a half inch internal diameter to properly drain all the oil out of the turbo
Amsoil dominator synthetic 2 stroke oil would be perfect for the turbo.
Rob will be proud
IT’S LITTTT. Can’t wait to get my hands on one
the turbo is installed upside down the drain is up the core rotates so oil enters the exhaust because it is installed upside down
This!
Yeah, how the hell does anyone fuck that up?
Also, there is no such thing as too much oil going to a journal bearing turbo. A journal bearing turbo needs oil pressure on the feed. It will use as much oil flow as it needs to float the bearings. The bearing clearances are the restrictor. You literally can't send too much oil into the turbo at normal engine oil pressures.
Reini Grauer exacly!
@@ReiniGrauer could the problem be the low rpm of the turbo shaft?
Wow, very very project 💪💪💪💪👏👏👏
Hello, I'm a retired mechanic and I wanted to give you guys a heads up about MIG welding and ball bearings,
I would recommend to keep your welding segregated from the turbo, Even though your project had a tight ground clamp
and you would think energy is not passing internally through parts, it is...
micro arcing can be induced and ruin your bearings, And because the pitting is tiny it takes a while for the bearings to fail,
There was a similar thing happening to gyroscopes failing in space satellites that was baffling engineers
Till they discovered electromagnetically induced energy had caused pitting in the bearings.
Based on your looks alone, i was not a bit surprised when you said"lets mount this guy up" .
I have a friend with a Sachs rotary mini bike, its quite the scary weapon n/a
it’s sick but for the turbo to actually work you need to get a way bigger jet or there’s gonna be way to much air and not enough fuel
Easy trick, nitrous jet in oil inlet side of turbo to serve as an orifice to slow down the amount of oil getting to the turbo. Also make sure the catch can being used for oil supply is vented to atmosphere.
Two-stroke oil is not meant to burn 😉, awesome wee rotary, great show 👍
Sick!
Hi I used one of those turbos om a 420CC motor with a 32MM carb mounted on the intake (draw through) = 8+ lb of boost. on my go kartI I use a transfer pump for oil. good luck
Have u thought about going supercharged instead? Like with one of those lil amr300 blowers? They're super cheap on ebay. That way u don't lose the braps as much but u still get boost
Honestly a belt driven supercharged might be your best bet and also I would go about finding a rebuild kit and maybe some porting on the mini r
Im subbing but i have high expectations of you making this work.
What a cute lil' braap!
You guys should make a mounting plate that mounts to the holes on the motor and try and get a torque converter on ther it would be sickk keep up the good content👍
subscribed just for that intro
You may want a needle valve. A ball valve is real hard to get a little flow accurately. It's kinda on off switch.
I don’t know how the pulse pump works. but if it works on vacuum pulses when you apply boost there won’t be a vacuum so won’t the pump stop working?
You dont need a restrictor on the oil feed, you need a bigger diameter drain hose. Its backing up in the drain and then getting past the seals. Also your drain should be as vertical as possible.
Will the pulse pump still see vacuum when under boost (i.e. stop working?)?
I just stopped the video 1/2 way ..............I gotta tell Y'all; ................EXCELLENT! ..... NICE work on the concept, EXCELLENT work on the BUILD, .......and I gotta tell ya; ..........your video info and quality are PERFECT !!!! .....now I'm gonna watch the 2nd. half.......let's see if it works!?!???????
This is awesome love your vids I was the 85th like
Get an oil restricted for the turbo or weld the fitting and drill a small hole in the feed fitting. Might have to make the drain bigger too. Very cool project tho. Sounds awesome
Cool 👌
Where did you find that jckshaft to go from left side chain drive to right side chain drive? I’m looking to put a predator. Motor on a west cost chopper bike. Need something like that even if it needs to be modified
Surely you will be running a two-stroke mix anyway to lubricate the apex seals ? So will you get smoke coming out of the exhaust.
I just bought that same valve to use as a gas petcock for my snowblower. It was totally defective, as in made poorly and was clogged right out of the package. Couldn't believe it.
Make Sure your oil Catch can has a breather Port! I had the Same issue because the oil could Not drain good enough. That Made the pressure before the turbo way to high
Question, how far can you get on a tank of gas?
And what ratio premix in the gas?
Imaging the nice red spatter balls falling right into the cylinder at 4:20
Where do you even get a small rotary like this? I have been looking for one in the past and could not find one
Do u have any parts. Mine doesnt seem to have spark. Alsso has a black and a yellow wire. Any parts for sale?
Simple fix boys..... Put a T in instead of the manual valve, run the extra hose back to the catch can, it'll self regulate.... Catch can to pulse pump, pulse pump to T, one line to the turbo one to the catch can....
What size of hose did you guys use to connect the tubo to the intake
I'd be more curious to see if expansion chamber would help imo it's a lot closer to 2 stroke and I think chamber could possibly make huge diff but I'm not very knowledgeable with rotary engines just because so hard to find of get one that u can just mess with
Really awesome intro music 🔥🔥🔥
AND *lest we forgot* fucking awesome project 👊💯💯💯
Have you checked out what type of gearing is used on rotary cars vs regular , im not sure how you've got it geared now but with the typical high rpm low torque of rotary it will make a huge difference to gear it correctly
What does the pulse pump run off? Sorry new to these kinda things
OK! Here's my suggestion; Run a inline restrictor with a bleed off return for the excess that is the return back to the tank. I think a 1/32 hole will be plenty to keep the turbo well lubed. Any specs come with that cheep turbo?
How did you make the oil drain fitting?
Does that rotary engine have an oil pump or are you running the turbo dry?
sounds really good, though i wonder why i keeps cutting out and dying. Im sure you'll have to tune the carb at some point now that its got a turbo.
Turbo is oil cooled will need an oil cooler to keep temps down. Also turbos sould run min of 1/2" return line. Looks sweet tho guys!
Where did you get the rotary engine from and how many cc?
SIIIIICK!!!!!!
If ur running premix will the oil in the exhaust clog up the turbo?
Rotary turbo cars premix all the time. Its not an issue
Would you be interested in a mini roots supercharger for a 100 to 200cc engine?
So I have a 212cc predator engine, where can I get a water cooler for it? I really need help.
were can i buy a rotary engine from
would megasquirt it for sure. are Sachs rotary parts available somewhere?
Where did you get the rotory sachs engine?
What rotary engine is this?
The Boosted Mini Dorito.
I never new a rotary engine could be so small
Watch johnnyq90. He has one even smaller for an rc car
Cool
Thats a dandy idea, weld the exhaust up while its on the turbo with the oil feed open, the compressor housing open, the exhaust open, etc etc. You're going to have bbs in all you're bearings, all you're oil. Its going to gash tf out of the inside of the engine.
You guys should really check out Paul's karts on UA-cam & his website Paul's karts. He makes performance heads and is an engine builder for predator 212 tillotson's Honda, anything from a 212 to a 460 & Beyond. he explains why a a turbo won't work on a engine under 400cc especially when you guys tried to Turbo your guys's 212 which should have at least made 15 horsepower only made 8, I highly recommend checking his channel o you can go in a lot more deaths than I can. And can get you guys making some real boost. I've been watching the channel for a long time and I wish you guys the best
what engine is this? someone let me know, and where can I buy it
You just answered my question. But that turbo is meant to have about 30psi of pressure and there’s no way a vacum diaphragm pulse pump is going to generate pressure anywhere close to that. You just need a better dump system and I would mount the pulse pump above and closer to the turbo so you have more volume on your dump side.
Just curious, where does one (me) get my hands on a rotary engine of that size?
Definitely increase turbo oil drin line like other have stated. Choking off the input isn't the answer. Going to burn it on boost. Just my .02
Where did you get the rotary at
Good evening from Florida. Where did you get the engine from? I'm interested in one. Thank you
How a bout connectring ther Intake???