Electric Go-kart Off Road - Demo & Test Drive

Рет қаралды 45,429

4 жыл бұрын

Homemade brushless outrunner go-kart / mini-buggy with full suspension draws 15kW at full load. Quick look over and some footage showing how it performs.
It was designed for mild off road terrain, and tight technical tracks.
Some Specs:
-Motor: 120100 model which is a larger version of the well known CA120 used on RC planes.
-Traction Battery: 24S2P turnigy lipos (88.8V nominal, 10Ah)
-Controller: KLS96501-8080I model manufactured by Kelly Controls
-Display / Logging / Control: MoTeC C125
-Peak Power: 15kW and above
-Top Speed: greater than 80km/h
-Range: 8km ish (driving it hard)
This project has been a while in the making, and isn't finished yet. There are a lot of aspects to the build that ended up becoming projects in their own right, such as investment casting throttle pedals, making a module to adjust hall sensor timing etc. I have several ideas for future videos.
This is my first electric vehicle build and it posed more challenges compared to the petrol powered go karts that I have played with previously. It also cost more to build than the petrol equivalent, but it has been enjoyable. I was inspired to build this project and share it with you by people on sites like KZfaq and Endless Sphere (where the focus is on electric bikes).
Thanks for checking out my first video!
Please like, subscribe and share if you enjoyed it, your support is appreciated :)
Feel free to post questions or comments
You can also like and follow at:
/ torquesynth
/ torquesynth

Пікірлер: 67

@deanoseadog 4 жыл бұрын

Finally I found exactly what I want to build. Can't believe there aren't more of these on youtube.

@kevintimmermans4886 3 жыл бұрын

Holy shit i Wanna build this too but with a honda gx and kart tires to drift more🤟

@opcolu 2 жыл бұрын

@@kevintimmermans4886 I think you're missing the point... the total weight of the whole drive system in this kart is roughly 13kg (4.5kg battery, 4.5kg controller, 4kg motor) and it can produce peak outputs of 25kw or ~33HP. Even the largest and most powerful GX (390) will struggle to put out more than 10HP peak and it will weigh in excess of 40kg with a fuel tank and clutch. Making the drive system 3 times heavier and 3 times less powerful seems like it would be a lot less fun and result in a lot less drifting ;)

@TheNone724 2 жыл бұрын

@@opcolu vesc 100/250 would be much lighter than kelly and produce same peak power and make drive system under 10kg

@gtwrmw1978 3 жыл бұрын

That dog brought a smile to my face. He's having as much fun as the guy driving!

@Jacob-ui6br 4 жыл бұрын

Such a perfect build! Thats exactly what i wanna build myself..

@DrGreenThumb135 2 жыл бұрын

WOW! That is one kick-ass go-kart!!!

@AllThingsElectric_ 3 жыл бұрын

dude holy F thank you for putting this on KZfaq

@captainflatspot 3 жыл бұрын

really nice build! looks fun

@leztog 3 жыл бұрын

Wow. Nice Build! I'd love to see more details. I've started my own electric motor go cart project. Just bought a donor frame and now I'm looking into power train ideas.

@cristianguillenmendoza2619 3 жыл бұрын

amazing meng, congraturations

@bstarnes514 2 жыл бұрын

Well done sir... That thing really moves! This really gets me thinking...🍻

@offensivebias3965 3 жыл бұрын

Thats looks fun 🤩

@MPinto-lg5nu 3 жыл бұрын

That was awesome!

@stewedapple 2 жыл бұрын

when I imagine heaven...it looks just like this!

@michaelrigby7975 4 жыл бұрын

Awesome !

@mikemoe3481 2 жыл бұрын

Golly!!! That shit is fast!!

@4486xxdawson 3 жыл бұрын

Great jpb and you should have more thumbs up , but i notice there isnt 1 thumbs down so that shows you did a great job .....👍👍

@AllThingsElectric_ 3 жыл бұрын

you just got yourself a sub

@airgunningyup 2 жыл бұрын

trying to figure out why you chose the kelly over a powerful rc esc ? was it because of the hall effect throttle , the programability, reliability, or some other reason im missing?? awesome insane build either way!

@PerpetualMotor 3 жыл бұрын

This is my favorite EV build. Lightweight, fast, and fun. Did you build that trailing arm suspension from scratch?

@sebastianbarry952 2 жыл бұрын

I looked up the motor that you're using and the website says that its peak power is actually 25Kw!! Crazy to think that you could go faster with a different battery arrangement.

@felipemireles2683 3 жыл бұрын

How do you go about charging all the lipos??, the what KV?

@brutella8887 2 жыл бұрын

hey, how do you charge the lipo accu ? individually or all at the same time?

@dougking8424 3 жыл бұрын

Is that particular motor sensorless like other smaller rc car brushless motors?

@picardnatan3786 2 жыл бұрын

Hello, how did you fit the pinion on the motor shaft ?

@ChristianGreeff 2 жыл бұрын

I just built a go kart with the same motor. Do you have the 3d printing files for the cooling duct? Also what brushless motor did you use for cooling?

@daatm2719 2 жыл бұрын

Hi ! just want to know after all this time how the kart is doing. Did the motor survive ? Want to build the same, but i'm scared it won't last long.

@bryantimms1469 2 жыл бұрын

What gear reduction are you running on that? 80kmh top speed is pretty good considering it looks like its got torque.

@sangreporsangre7630 2 жыл бұрын

How do you make it go so fast is that because of the battery or tell me what what else

@s-nunziobracale509 3 жыл бұрын

Hi can you leave me the link of the motor and batteries?

@tannerwalker2735 3 жыл бұрын

Awesome build!! Curious how long your battery would last?

@Thoracius 3 жыл бұрын

It says in the video 8km

@therealgenetic8649 3 жыл бұрын

I wonder how longer does it takes to shut down?

@gusalmighty5098 4 жыл бұрын

Nice build. How is acceleration with that motor? I am wanting to do a 96v conversion on a TAG or maybe a shifter kart if I can find one cheap enough.

@torquesynthesis7641 4 жыл бұрын

Cheers! The big issue with the motor is cooling, I have put 250A through the motor and acceleration is more than 0.4g from 0-50km/h which is great but it wont sustain that. With well set up cooling, it should be good for about 150A continuous. I should do a video reviewing the motor

@gusalmighty5098 4 жыл бұрын

@@torquesynthesis7641 I would really appreciate a review of that motor. Before I saw your video I was going to do a dual motor setup using 2 me0909 motors with a split rear axle and run them in series @96v 300A max or parallel @48 600A max. But those motors are only good for about 30nm and 4500 rpm no load speed. These motors are about $100 🇺🇸 cheaper and according to what I have read 46 nm and up to 8000 rpm no load speed. So now I am thinking 96v with dual 120100's run in paralell. With 2 of them in paralell maybe I can run the pair at 300 or 350 amp max and still get the desired acceleration with out cooking them. Can you run a pair of 3 phase motors in paralell with one controller, or will that mess with the hall sensors? A respectable top speed would be nice but not as important to me as making it scary fast from 0-60kph (40mph).

@torquesynthesis7641 4 жыл бұрын

The 120100 would probably struggle with 100A continuous with no forced air cooling - it really needs help keeping cool on a go kart. The 2x me0909 would be capable of higher continuous output than their specification says if you could add some active cooling. I suspect the quality of the me0909 would be superior and the specifications would probably be more conservative regarding power output, compared to the 120100. The only way you can run 2 brushless motors off one controller is by running them synchronized e.g. on the same shaft.

@gusalmighty5098 4 жыл бұрын

@@torquesynthesis7641 Well that is discouraging....hahaha. It sure looks impressive on your machine.

@you.got.gapped.racing44 2 жыл бұрын

Can this motor do 100kmh on slicks with a 50kg person, with at least a 100kg chassis

@raydonpubgm5233 2 жыл бұрын

we need a update on the kart !!!

@axelwiberg2068 4 жыл бұрын

Awesome build. I see that you run a direct drive. how much is the gearing to the back wheels? Do you know how much torque it produces?

@torquesynthesis7641 4 жыл бұрын

Thanks! Gearing is 3:1. Motor torque is around 25-30 Nm, depending on motor current settings

@axelwiberg2068 4 жыл бұрын

@@torquesynthesis7641 Hi Torque Synthesis. Super thanks for the answer. In current building a dirt bike with the same motor that you are using. So I just wonder how you have set up your front sprocket to fit on the “small “12mm motor shaft. My project have just begun and Im waiting for parts right now. Would be super cool to see some videos of this awesome creation. Best regards//Axel

@torquesynthesis7641 4 жыл бұрын

@@axelwiberg2068 The sprocket is welded onto a little hub, which then slides over the 12mm shaft and is bolted onto the threaded holes in the end of the motor. Thanks for the encouragement, I do need to make some more videos happen!

@gapininja 3 жыл бұрын

@@axelwiberg2068 hello im very intersted in your project any uppdates

@gapininja 3 жыл бұрын

@@axelwiberg2068 hello im very intersted in your project any uppdates

@angelavila9235 2 жыл бұрын

How is the motor holding up?

@jshatfield115 3 жыл бұрын

Did you make the music? I like the riff but it needs production

@torquesynthesis7641 3 жыл бұрын

Yes, I put it together rather quickly for this video and I do agree with you

@ivanveselovsky241 2 жыл бұрын

You used an air cooling instead of water cooling , right?

@pilotboi69 3 жыл бұрын

i want to build this myself i might upload something like this too

@Oelngatikameie 4 жыл бұрын

Hi! How long does it takes to unload this battery?

@torquesynthesis7641 4 жыл бұрын

To physically remove it from the go kart? Probably only 5 minutes or so to remove both sides of batteries

@Oelngatikameie 4 жыл бұрын

@@torquesynthesis7641 Damn, sorry, my english is not perfect haha. I mean how long does it take (driving) to "make" battery empty :D

@aaaaaaa4821 3 жыл бұрын

@@Oelngatikameie @3:39 8km

@rolandsteinberger7151 3 жыл бұрын

what is the input voltage for this motor? and nice video!

@torquesynthesis7641 3 жыл бұрын

The maximum voltage for the motor is specified as 100V, which the batteries are nudging when freshly charged. Thanks!

@louisdesignsandrides1215 3 жыл бұрын

What are the motor specs? What company makes it?

@imperialsecuritybureau6037 3 жыл бұрын

120100 brushless motor, produced mostly by Freerchobby, Flipsky & Maytech. It’s the same design with all of them, aside from various modifications each company makes to suit their quality control. They are possibly all built by Dongguan Freerchobby Co Ltd. but I’m not exactly sure. The specs vary on a few things like kV (of course) and rated torque and max amps are slightly different depending on what company is giving them. Typically the specs are: kV: 33 / 55 / 80 kV Maximum Series: 20-27S (72/84V - 99.9/113.4V) Max Amps: 300A Max power: 25kW Weight: 3.9kg Rated torque: 35-46Nm Nominal power: 10kW Nominal Amps: 180A Actual size: 120 x 180mm Shaft diameter: 12mm