ฝัง
- เผยแพร่เมื่อ 14 ม.ค. 2022
- VM22 Mikuni Short intake manifold VS long
Did some top speed and zero to thirty runs with the Hemi Predator-powered Coleman cc100x minibike with a long VM22 intake manifold? Then swapped out the long manifold for a short manifold to compare the difference in performance.
Coleman cc100x Predator 212 playlist - • Mod 3 cam vs Tillotson...
Instagram - doubledown555black66
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Parts used -
EC intake manifold - www.eccarburetors.com/vm22-in...
VM22 intake manifold - www.ebay.com/itm/184642315856...
Don't forget to leave a comment to let me know if you enjoyed this video! :)
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I have built a 2stroke motorized bicycle with the jug reversed so the intake is in the front and the exhaust exit from the rear.. with a 6inch intake runner..gets good torque and good top speed with a 32t sprocket...from what I have collected out of my own experience..longer the intake runner, better the torque but doesn't really affect the top end speed at all..
Yes! If you look back at the cars from the 1980's like the tuned port camaro . The super long runners on the tuned port manifold gave that car great torque for the day.
I figured this would be an intersting video for a small engine.
good comment and info man i miss my 2cycle motorbike build only lasted me 3months this 212 way surpassed my expectations i mean the money i save on gas is incredible
I just like the short intake to keep the carb tucked in a little more for offroad riding. Especially if you dump it…
I like it too. It doesnt realy make a lot of difference either way on this combo. I did the video on a different engine with definitive results.
Another great vid. This is something nobody else I’ve seen has talked about! I just got a nibbi carb I’m getting ready to try out
Finally a video on this manifold adaptor I was about to buy one like 1 hour ago. Retune carb different volume of air fuel mixture.
Thanks for this info, another great video!
Before I watch the video, I'm gonna guess the longer the runner the lower the torque sits in rpm. You should try to make an intake runner that's ridiculously long, around 12 inches, maybe make it so you could take 1 inch sections out and test to see which length runner someone should go with for top speed and trail riding.
I got to subscribe, i need more of these experiments.
Thanks! Most of the time I have videos coming out Wednesday and Saturday.
Make a long intake one that points the carb to the front of the bike so than it will create "Ram Air" effect (positive manifold pressure)
Black66 I Like The Comparison Videos. Thanks
Thanks!
That is a Sweet cc100x!
This is exactly what I needed! The standard manifold that comes with the Mikuni's causes the bottom of the bowl to hit the chain. This short manifold is the perfect solution for Manco Big Cat owners!
Yes. It is a good intake for situations like yours.
Good to know excellent video , thank you .
Thanks !
You should try this experiment with the flat slide carb that has the rubber hose intake. Start with a 10 inch hose and then shorten it by two inches at a time.
Great video.
Thank you!
Answering the questions you didn't know you had
Nice video. I heard the longer intakes give you more torque so maybe that’s why the short one had a slower 0-30. Your top speed was the same because of valve float. You can hear it more clear with the short intake manifold.
Thanks. The engine on this bike has 22lb springs. This was a quick combo I threw together for this video . The carb had way to much jet for the altitude up here. Plug was super dark .
I did the video with another bike that was tuned with definitive results. Quite a big difference.
@@Black66 Which video is that?
Interesting vid.
good stuff. 👍👍👍👍👍👍
More bottom end with longer intake carsandcameras dingo proved this
Yes! If you look back at the cars from the 1980's like the tuned port camaro . The super long runners on the tuned port manifold gave that car great torque for the day.
I figured this would be an intersting video for a small engine.
sound like ya got a cold in this one bud but u thugged it out and killed it
I have both and prefer the long every time
Great video. What is your jetting set up on this bike? Also, do you have any bikes with a genuine Mikuni? I have one I'm having trouble getting jetted correctly. Oddly, my knock-off mikuni carbs are working better than this real one.
I used a long manifold carb on a mm80 to clear the frame
should spray something around the manifold to make sure it's not sucking air and running lean when you changed them over.
👍👍👍👍👍👍👍👍👍👍
Iam guessing he got a little sad when the real motorcycles drove out in to the desert. Thanks for thw time an demonstration
Cool video, very interesting. I noticed the valve covers on your bikes, most just have a hole to vent. Are you venting the crankcase this way? Maybe you can do a video with and without crankcase venting, thanks.
I think that's the whole that has a breather to the stock carb ,aftermarket does not hook up
Great video with the comparison of the intakes is there any possible way you can make a video on what are the mildest mods you can get away with to make power and get great top end without spending so much money for all this billet stuff? Because I just spent $175 on just a rolling mini bike chassis and I plan to put a predator 212 on it but I don’t wanna go as far as in a billet rod and a flywheel in those kind of things by that time I have purchased the motor three times over and yes I get it this is a very expensive hobby I just wanna have fun every now and then with some speed😏 and is it worth it to get the new 224 motor from Harbor freight are they gonna use the same parts as the 212 please do a comparison video on that greatly appreciate your channel and all you do for us forever a subscriber to your channel you’re the best man!
Thanks! I'm happy you like the channel! I hear ya. I'll have to do a series on a 212 budget build. The 224 uses clone parts. All the same stuff on the outside like carb, header, head as the 212. The 224 is worth it because you get a 58 MM stroke and a reinforced block for $40 more over the 212. The 212 is still good though.
@@Black66 This would be amazing.. Im in the same boat as them. Except I got a custom chassis so my budget is even more strict now lol..I've already picked up my 224 and zip tied the governor for now while I wait to decide what route to go.its a 5 Inch wheel base, I'm pretty sure just like your "greatest mini bike in the world," ha haha and to be honest i dont disagree with you at all there. That OG mini bike on your channel is freaking incredible. I'm curious why you never tried a flat slide carb on that bike though? Also curious why you haven't tried any of the 28mm pwk flat slide carbs... from my research its about the only carb besides the normal vm 22 people run on clapped out builds. Other than that I wish to copy literally everything you've done lol.
@@PopeyesCreeper Thanks! Ya, I love the best minibike in the world LOL It so cool. But the only thing about it is is not the easiest to ride being so small , and the steering is super touchy with the rake it has on the handle bars. Thats why I really havent ran a flat slide on it. I like using more stable bikes for speed builds like the stretched Mega Moto 80 . It runs a lot better a speed. I will definately get around to trying out a PWK carb . Im ordering up the parts now to do a super small budget series on a predator 212 that will apply to the 224.
@@Black66 Awesome man, I love the passion you have for these things, and yeah that makes sense in your 60mph+ videos it does look a little wobbly. The frame I got is a "Gts hobbies," frame out of California and they do a lot of racing, I'm hoping it isn't as small and will handle a little better. After I left that comment I stumbled on 2 websites, not sure if you linked them or not to be honest, but I read up as much as I could and it was definitely a game changer for me , the only thing a little confusing is that they never mention how a pulse pump or increased fuel might help.. heres a link to the two if you want to check them out gokartnerds.com/complete-guide-for-performance-mods-on-predator-212/ and then for the 224 for the parts I found this gokartnerds.com/performance-parts-for-predator-224/
@@Black66 Also you could always experiment with steering stabilizers? Not sure if thats something you're willing to dive into
Nice video, where did you get that short manifold?
Thanks. The links are in the description
What are you using to measure 0-30? A draggy? Great vids!
Thanks, yes I'm using a dragy .
What about different carbs sizes?
hi i just built a motor 18lb valve springs set to what you have in a video i also installed the aluminum 8500rpf fly wheel now the bike wont run it starts but wont idle with out revving very fast sounds close to blowing any tips
Would love to see a nitrous bike
Hello I'm putting together a bonanza Bc1200 for speed and upgrades .So remove jackshaft or leave it on?Thanks
You can make the bike fast with the jackshaft if you don't want to go through the trouble of removing it. I have a video coming out with the Mega Moto 212. Its pretty fast with the jackshaft.
What happened to the audio in the beginning?
Hey man, where did you get your clutch cover thing I need one Because o predator 212 swapped my cc100x
I have a video coming out today about the cover
@@Black66 ok thanks you were my inspiration to engine swap my cc100x with a 212 it rips haha
@@minibikemafia7346 Right on! Happy I inspired you!
Hi black66, what do you set a stock 212 intake and exhaust valves at.??
I pretty much set everything at .003 unless the cam called for something else. A lot of times I will just tighten them down while spinning the pushrod and I'll stop once I feel resistance.
@@Black66
Thank you. I have one more question when I let off the gas I get popping out of the header what do you think ?
If they sell a 45 degree bend elbow for the carb so it doesn’t syy to ice out so much , would be better , it’s way to long and I don’t like things sticking out that.
Have a ? Have you ever had one of them carbs start popping back threw it at higher rpm’s.
In one of my CRG kart videos it happened. When they pop it's usually because they are running lean . I will add a bigger main to stop it.
Have you ever used a Genuine OEM Mikuni VM22? Thanks
Yes, quite a bit more power over the imitation VM22 on the Predator .
You get more intake.sound when longer
Where did You get the throttle cable from?
GoPowerSports
What app do you use to track your speed
I use digiHUD on the phone and a Dragy performance meter for 0 to 30
I put mikuni carb on my mini bike and every time I turn it on it goes on its own anyone know how to fix that problem?
Where did you get the gas tank and mount ??
I made the mount. video coming soon
Long give you more torque I believe
This video do not have sound in the begining
Go with the one that fits the best. Anything else is wasting time.
Check out the channels playlists. . It's about testing different parts and engine combos with a few builds thrown in for good measure. Thanks for watching!
You should ship me the EC manifold 😂
What teeth clutch are you using here
12 tooth clutch
Longer manifold will atomized the fuel better
The things that you are able to do when you have the money to throw at the things that you actually want
Top speed seems to be valve float limited.
The engine on this bike has 22lb springs. This was a quick combo I threw together for this video . The carb had way to much jet for the altitude up here. Plug was super dark .
I did the video with another bike that was tuned with definitive results. Quite a big difference.
Top speed will be the exact same unless you change the gearing
"Long"? I'd call that "short vs less-short". You oughta go the other way and fab up a 4 inch intake. Just bolt two 2-inchers together.
I have more videos coming on this topic .
I mean.... If you use the short manifold for it's intended purpose, it'll be much faster lol
True, a longer intake usually will pick up more torque. I have tried this intake on many different combos. Longer is still better.
I was talking about that nitrous port lol
@@6628guitarhero Me too lol. I think most buy this intake thinking it will make more power or to bring the carb in closer to the engine for clearance issues.