Turbo Predator minibike walk around startup and ride
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- Опубліковано 4 лис 2019
- A follow up to my previous video with a walk around to show the turbo setup. The blacktop predator has taken the 6-7 peak psi quite well thus far and the bike is terrifying to ride. I asked a friend of mine to help with the video because the engine doesn’t idle well with the turbo. It seems that the single cylinder doesn’t fire enough to keep the compressor wheel from stalling at idle so constant Harley rider revs are required to keep it running. Thanks for watching
'I don't ride it everyday, ... or i would be dead' ohh man that was funny , great build btw . always coming back to this video just to check , building one myself :)
Thanks! Its actually injured quite a few people. Fortunately nothing serious but its a handful. No one respects the throttle or expects the boost to hit so soon. I'm not great at recording what I'm working on but I guess I should make a follow up video. I'm working on a hydraulic brake setup to make it a bit less dangerous to ride and have been thinking about reworking the exhaust/charge pipes for ergonomic reasons.
Hey mann this is my other account I got a video of my turbo ,feel free to check it ,peacee
instablaster
What did you have to do to the carb, add bigger main jet?
Reliability is definitely a thing here
no one is worried about reliability on a motor that costs 300 😂😂
Your setup is really complicated but its cool you got it to work
Absolute madlad.
Cool little project just because, but too scary!
That’s sick
wow. nice bike
Love it want it need it
What carb and what jet size are you running?
Its a 22mm Mikuni knock off and I went up 3 jet sizes if I recall correctly. I can pull it apart and get the number but it started and ran on the stock jetting out of the box. Your results may vary
Complete with Fred Flintstone
Brakes
Nice shirt dude and nice build 👌
Cool
Question on the oiler......These Turbo's, I just bought one I'm planning on putting on a Briggs vanguard v twin. Everyone I've seen using this cheap turbo is having oil control issues with them. I understand you don't have an oil pump on the predator but the Briggs does. When I tried questioning the manufacture off eBay I never got any response of course about oil flow and pressure requirements. I'm at a crossroads now..... Do I take the whole thing apart and custom make my own new tighter tolerance bushings for it, or put the bandaid on it by using a oil restrictor inline to the feed side. I'm guessing you may have some time on yours by now and it hasn't seized up or the impeller isn't grinding into the housing yet from lack of lube with a non pressure lube system. Just wanted your opinion on this turbo if possible. Thanks so very much, I have the same exact mini bike frame!!! Lol! It's all done up with a worked predator 212 naturally aspirated though is deadly enough! I can't believe we have the same bike and I put the same tank on mine as well off a bicycle kit lol! That's too funny and weird man! Shoot me your email address in a message back and I'll send pics of mine! Do you have any idea the manufacture of the chassis of these bikes BTW? Mine came from a school transportation class they were throwing out. Was like brand new minus the engine of course. But it's the same slanted engine plate with fork springs and big ass spoke wheels 10" I believe I put knobbys on that fit a Yamaha Pw50, they work awesome. I had to do away with the horrible rear scrub brake with the knobby tires though and want to a band brake welded the hub to the rear rim. Please if you happen to have any info on these chassis let me know. IDK if it is or not but mine has MANCO on the back of the seat, but I really couldn't find anything manco made that looks even close to ours!!??
I just used a gravity feed machine oiler and have to drain the lower reservoir occasionally. Probably not ideal for the turbo but it has lasted 3 years like this.
try it without the restrictor, if it smokes, put the restrictor in. also, as straight a return line and as big as possible.
Does the type of spark plug matter? In a car I know they require cold spark plugs
probably but I haven't messed with that aspect. I'm throwing a lot of fuel at it to keep it happy so I suspect there is still some power to be found. I can't say I want or need anymore unless I stretch the frame and move the rear tire back a bit. All it wants to do now is wheelie..
What is the 'TURBO' aluminium boost carrier pipe from?
The "turbo" charge pipe was pulled from a Lombardi sawmill engine along with the turbo
What size turbo ?
is it possible to make it spool or not enough power?
It spools and makes 7 lbs of boost. I think that it would make more with a boost controller and its sitting on the wastgate
Where did u buy that turbo
It’s a IHI RHB31 I got for free off an old sawmill motor. It’s built to make ~20 hp on .1-.5 liter motors.
How did you get the draw through setup to work so well?
Well a carb is a pretty simple way of adding fuel to a quantity of air. The mikuni came jetted close enough for the engine to start and run and from there it was just a few jet changes. The tricky part was setting something that resembled an idle as the compressor wheel wants to stall which will stall the engine. This gets better as the cartridge heats up and the bearing frees up a bit. It would probably all work better if I used a new turbo instead of this junkyard one.
@@Toadatxyo if your looking to sell it I got $2500
what turbo compressor is that? is it a 9~15 ho engine?
It’s a IHI RHB31
@@Toadatx so cool, im building a go kart n i got a 15 hp engine n in the future i would like to try set a turbo compressor on it. Im just studying the possibilities
Lol I was expecting a stuuuu
I mean it’s alright
Where did you get that Exhaust from
I made all the piping except for the "turbo" embossed charge pipe. That piece was salvaged from the donor motor. For the remainder of the hot side & cold side plumbing I bought pre bent 90 degree tubing sections and cut/welded as needed. I also made the downpipe flange from a piece of 1/4" plate I had lying around
@@Toadatx ok thanks
Where can I get the oil resivore
www.ebay.com/itm/182663306429?chn=ps&var=485216182646&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=485216182646_182663306429&targetid=1263104806006&device=c&mktype=pla&googleloc=9028305&poi=&campaignid=12593971586&mkgroupid=127574848532&rlsatarget=pla-1263104806006&abcId=9300522&merchantid=101511821&gclid=CjwKCAjwy42FBhB2EiwAJY0yQjW0hYPKDZdvg1U5loUNjT-95CEwG537TIpoEGVrXfp7aLeOfxzxmhoCd7AQAvD_BwE
Top speed on this build i would love to know ???
Well, I can't say I've been brave enough to top it out to be honest. Perhaps I need to nut up and try..
@@Toadatx please do!!
Can u hear turbo spool or power diffrennce?
Definitely. The spool up sound is a bit odd due to the single cylinder but you can certainly hear it. Power wise, its very noticeable when it comes on boost. The predator is basically stock other than the turbo/carb and the bike will hang with by friends Z125
@@Toadatx so it’s actually worth it some what
@@WoodysPerformance101 I think so and it will be much better once I upgrade a few things on the motor. Mainly hardened cams so I can run stiffer valve springs. The boost is floating the valves currently so the stiffer springs will help. I'm also working on adding a manual boost controller because the wastegate is opening at 7 psi and I'd like to push it to 10 lbs.
probably less effective then stock
just flip'em the bird if they don't like it
Flintstones brakes I see
It has a single rear "disk" brake but its not quite enough most of the time
Where do I get a turbo manifold!!!!
"Intro to welding" class at your local community college (or teach yourself by ruining lots of steel like I did). Seriously though its a custom piece I made to fit the parts I already had.
@@Toadatx see that’s what I figured that I’d have to weld my own I just thought to ask cause I’ve seen some that look almost mass produced so what I was thinking maybe you can confirm cause I use the 3 point flange I cut from a stock exhaust to mate with one of these baby turbski’s
@@randysanchez1397 yeah I traced the 3 bolt flange and cut/drilled one from 3/8" plate. The tube was from a mix bag of mandrel bends I bought from BMI karts
@@Toadatx good to know I had the right idea I wasn’t sure if it would match up
@@Toadatx hey bro I’d really appreciate if you checked out this clip I got yesterday of my buddy’s self made turbo super MOTO ua-cam.com/users/shortstqHwvQcr8eY?feature=share
Does it make a difference?
Yes, it is quite a handful once it comes on boost.
@@Toadatx I bet!
I see you have a Boost bottle... Lol those things don't work and reduce performance.
I don't have one of those, not sure what you are seeing..
@@Toadatx looks like a boost bottle up by your gauge on handle bars and you said here's the boost line... Lol was the boost gauge line watched in slow motion... My bad.
I think I could take you with my stock 5hp Briggs Flatty with PZ20 carb 70 Ruttman Spyder.
I was thinking the same thing flatheads forever baby!!!
I've been working on it (new carb and a much better clutch) so I should probably post an update video. I'm not sure how it would stack up against more serious builds, this was more to see if I could get it to run and make useable boost and I certainly achieved that.
@@Toadatx it's badass!
Vasectomy in 3. 2. 1........
Full japanese tech. Ha ha ha.
Why?
........no jack shaft.
It doesn't really need one as the sprocket and motor line up fine. So far it has been pretty easy on clutches but I have been considering removing the wheelie bar and extending the rear frame to get the tire a bit further back.
Turbos don't do much on 212. Sound like it was sputtering wot
The boost is quite noticable. Sputtering in the video is due to valve float and I'm planning to install a higher flowing cam when I swap the springs.
😄😄