Thank you OG Racing! Check em out: www.ogracing.com
The electric go kart is looking more and more complete!! In this video we finish all of what this thing needed for a first drive! It still has a bit more to complete but this is one step closer to the final product. We have never done anything like this before but we are excited to take you along for the journey!
Thank y’all for watching and be sure to stay tuned for the next step of the build!
PARTS:
Motor: D&D ES-10E-33
24-48 VDC Separately Excited with mounting plate/rings and motor outline drawing. Has been used successfully at 72V which is how I planned to run it.
http://www.elmoto.net/showthread.php?696-Electric-Mayhem I emailed with DaveAK, the original poster in the previous link, about his build and he loved running this motor at 72V.
Buy online for $650+

Batteries: 24 Cells (72V) 60Ah GBS Model LFMP60AH Lithium Ion
Minimal cycles (~20) and have been in storage state/voltage. See spreadsheet for current voltages (3.18-3.25V)
https://www.elitepowersolutions.com/lithium-ion-batteries
https://gbsystem.en.alibaba.com/product/60211404327-220349394/72V60Ah_lithium_power_battery_for_electric_scooter_motorcycle_golf_cart_etc_GBS_LFP60Ah.html?spm=a2700.icbuShop.41413.8.5d802fb2UBXKFF
https://www.electricmotorsport.com/ev-parts/batteries/lithium/gbs-12v-4-cell-60ah-lifemnpo4.html
~$50+/cell = $1,200 new

Battery Management System: eLite Power Solutions (EPS) BMS-24
Hub, control unit, state of charge (SOC) display, front boards, cabling, etc.

Controller: Sigma Drive Separately Excited Motor Model SET835M
With technical manual, wiring diagram and connector/pins. Programmed for D&D SepEx Motor by Barefoot Motors (no longer in business) for use on their electric utility vehicle ATV.
https://www.cw-industrialgroup.com/Products/Motor-Controllers/Motor-Controllers-Industrial-Vehicles/Sigmadrive/Induction-Motor-Controller
D51011.05 BQ09090112

Charger #1: eLite Power Systems Lithium Battery Charger Model EMC72-15
87V 15A output with user manual.

Charger #2: Generic Battery Charger Model WL-089-05
Output DC 72V 3A with input and output cables.



DC-DC Converter: Sure Power Industries Model 71030i
Includes connectors/pins and installation instructions.
http://www.cooperindustries.com/content/dam/public/bussmann/Transportation/Resources/instructions/BUS_CBT_INST_180127a.pdf

Solenoid/Contactor: Curtis Albright 72V Model SW180B-12
With bracket kit part number 2065-167A.
~$50-70 without mount kit

Solenoid: Model MZJ-200 48-48A Main Solenoid
200 Amp $60-80

Fuse Block: Generic with two 400A fuses
$22 each for fuses

Throttles: Magura Twist Grip Throttles (2 sets)
0-5K Ohm comes with matching grip for opposite side and instruction manual.
https://www.evdrives.com/product_p/thr-magura-assy.htm
$50-60 each
BBR Social Media
Instagram - https://www.instagram.com/build.break.repeat/
Facebook - https://www.facebook.com/buildbreakrepeatchannel/

MUSIC
Music - Background and Montage Music Is From Endemic Sounds
https://www.epidemicsound.com/
Intro - Jimmi by Andrew Applepie
https://www.youtube.com/watch?v=l1zHz8pYfyQ&ab_channel=AndrewApplepie

MERCH
MERCHANDISE CUSTOM DESIGNED BY YOURS TRULY
https://teespring.com/stores/build-break-repeat

RACE SUIT
https://www.ogracing.com/collections/kart-racing-suits/category_kart-racing-suits+manufacturer_omp?sort_by=best-selling
THE WESTIN FRISCO
https://www.marriott.com/search/findHotels.mi
TOOLS
RogueFab Tubing Notcher
https://www.roguefab.com/product/versanotcher-universal-tubing-notcher/
Pro-tools Tubing Bender
https://pro-tools.com/collections/tube-and-pipe-benders
Optrel Crystal 2.0 Welding Mask
https://usa.optrel.com/en/eye_protection_helmets/products/show/crystal20/
Optrel Grinding Mask
https://usa.optrel.com/en/products/augenschutz/helme-zum-schleifen-schneiden/products/show/clearmaxx/
—————PARTS—————
Seat
https://www.gopowersports.com/high-impact-injected-plastic-seat/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video
Sprocket
https://www.gopowersports.com/split-sprocket-41-420/?utm_source=YOUTUBE&utm_campaign=Build_Break_Repeat&utm_medium=Video

Oh so before we get into this video, i just want to give a quick precursor, because this is a couple weeks in the future and we messed up a lot of stuff. We had a lot of problems, but it is build break repeat so. Jason's gon na explain kind of what's going on in this video. Our sprocket is just way too big.

This thing's gearing is way too high. So basically, that's just gon na the motor is just working too much like kind of pushing electricity in, but getting nothing out which can cause overheating and a lot of strain on all your electric drive training components. So for one we had this and then we also had this motor is meant for 24 to 48 volts and we're running it at 72, which you know isn't that bad people people have done it with this motor before. But then couple that with being severely under geared and just a lot more strain, basically, we burn out this motor.

We had to get it rebuilt and then we also ended up burning out our motor controller. We just figured that out like today, which is like three weeks in the future, but yeah. We have a lot of new parts, we're about to order we're just kind of sourcing things figuring it out, but um yeah. But with that being said, there's a lot of potential here yeah and just keep in mind when you watch this video that this thing was just severely uh under geared.

So what that means is it's still a lot of fun. We have a lot of potential here and it's just another step in the process and you'll see this thing drive for the very first time. So in the last video we got this thing finally running as you all can see, there's wires everywhere. We don't see.

There's a lot of work to do, but there's really not that much left between us and a bunch of electric power. So let's just get started we're getting the chain on. I also bolted this sprocket up and got our keyway matched up. We don't really know.

What's going on with gearing we've, never really messed with electric stuff, but this is gon na be a pretty good reduction. I think we're gon na be able to go pretty fast with this. Everything is completely ready. Besides our throttle, but right now we just want to test it and make sure everything's working tested the chain's all right and just everything.

So it's on yep contactor. This is forward. This takes me super fast yeah. Let it rub out a little bit too and don't look back watch the tire do y'all see it expand.

I love how quiet it is all you hear is like this. It's got a nice electric noise, but not too bad. So everything on the car to set up now, but we didn't have a way to set up the throttle. So we did is we took this twist grip throttle that they had and we got a little piece of aluminum shaped it like a pedal and then u bolted it on here.

So what it will do is it'll just act like a foot pedal. This isn't going to be permanent. This is just so. We can test the cart, because we need to make sure that all our programming is going to work right and then, after that, we'll have to order a real pedal.
But this is our stand in and it works all right, so we're sliding our throttle onto our foot peg mount and it'll go like that. So we'll get that cinched up and then we'll be ready to go so you're standing like that, so that when you push it back, it'll be like that. That's better throttle is all done and um i mean it looks a little weird. It's not very easy to use just this twist grip has so much more throw than a normal pedal, but um i mean this is a good temporary measure, it's pretty solid, so that should work for us and now it is in forward so okay, we might actually Want to un detune some of the responsiveness.

This is, but also we don't know it's not under load yet so we'll have to see but wow, oh dude, all right. Let's try! Reverse oh wait. I just turned it off there. We go.

Okay, reverse! This is our first quarter. This is our first cartwheel reverse wow yeah, let's go drive it. Okay, everybody! Well, we've had a lot going into this and we're finally here ready to drive. Thank you go powersports and we got a sick, new race suit.

We need to show you too yeah guys, so we got this omp full cart, race, spec, it's a fire resistant, friction resistant. We got this from og racing and they make all different kinds of custom race suits. I mean, as you all can see. We chose all the colors, the design and everything on here, so yeah, we'll kind of walk you through this.

We got our go: powersports logo, our logo, og racing same on the back, and i mean this thing looks super cool, so make sure you check out the links in the description. If you need a nice hotel to stand in frisco or our new race suit, all right, we're gon na give this thing. Its first test drive power on contactor and forward good luck, brother all right. Hopefully it doesn't prank.

Okay, i can't even tell how fast it is, so power doesn't kick in until right about now, so you can just tell how bad our gearing is. Yeah guys. The one feature that we've never had is reversed. It's not limited in reverse at all, so we can go top speed backwards.

So that's not safe. Next video, that's what we do. We put a reversal, i'm just gon na b-roll over this footage anyways, because it's electric and you can't hear anything, but we should have stopped driving this thing as soon as we noticed how bad our gearing was, but we were just too excited. We actually ended up overheating the whole system, but at least we had some fun and got to see a drive, so this thing's probably a little deceiving with how quiet it is, but that that's insanely fast i mean i wasn't even close to top speed.

It was still pulling hard, so what's the like fun factor, how fun is it? It's super fun i mean being not as crazy and more like usable because, like the rotary you're, always worried, you're gon na, like bottom out or you're gon na grind the gears or something like that or the clutch is gon na break. With this thing, i trust it completely. There's no weird noises, it's just power and fun. So would a re-gear do anything jason yeah? I think this thing definitely needs a re-gear um.
I mean right now it's kind of got stupid top speed and it seems to be really suited for the track kind of just a good, fairly good handling part, and it's got nice good linear power. So i mean stay tuned for next time, because we're definitely going to re-gear this thing and take it to the track. Door's turn yeah. How are you feeling i'm ready to get suited up this suit? Alright, you ready joe yep.

I think we're rolling, oh yeah, so fun yeah guys. So i mean we've already talked about this, but this was very impressive. Build we're really happy with how it turned out. I mean we're surprised we even got it running so i mean.

Obviously, it wasn't exactly what we expected, but uh, given the motor we have and everything it's it's what it should be so going into this, build we're gon na need to add cooling to the back of the controller and maybe even a little kind of air duct Or something to help clean the engine or the motor too. Thank you guys for watching make sure to give it a thumbs up and subscribe to the channel if you're not already, also check out our instagram at build record feed. Thank you to go powersports og racing and the westin and frisco and we'll catch you next time.

Avatar photo

By YTB

23 thoughts on “Homemade electric go kart first drive! 80v electric kart build part 4”
  1. Avataaar/Circle Created with python_avatars Complexnigga says:

    Hey guys great job. I was thinking if you guys can add a gearbox or a bicycle gears. It would be cool to change gears while driving. Also you can add an alternator so the batteries can charge while you're driving

  2. Avataaar/Circle Created with python_avatars André Bazenga says:

    You guys need help that project? I'm a mechanical engineer, I can advise a kit for you guys that will work fine right off the gate. 🙂

  3. Avataaar/Circle Created with python_avatars Hillbilly fisherman says:

    you should take the to the dirt track an race against them guys at the cart race track what i would do anyway..just take a genarator to the track charge in between the races

  4. Avataaar/Circle Created with python_avatars Ryan Lewis says:

    Looks heavy. More power lets you go faster in a straight line. Less weight lets you go faster in every direction.

  5. Avataaar/Circle Created with python_avatars roddas26 says:

    Who wants to see a drag race between the Rotary Kart Vs the Electric Kart?

  6. Avataaar/Circle Created with python_avatars tim wegman says:

    You guys are in the Bay Area? Awesome I’m from sac but I work in the bay nearly every day. Ok so don’t make fun of me I’m a dork I realized 10 min after making this comment that you could have meant Frisco TX and not San Fransisco Ca. (Which by the way we call it Frisco here) smh 🤦🏻‍♂️ sorry don’t mind me.

  7. Avataaar/Circle Created with python_avatars tim wegman says:

    I called it. I seen that sprocket and I commented on it but it was already done I watched thaws videos way later. Man I wish I would have been able to comment before you blew out the electronics. Unfortunately heat is the downfall for the electronics and heat is an outcome to wasted power. This is a awesome build though guys you have some quality gear and a great platform so it will be amazing

  8. Avataaar/Circle Created with python_avatars Raymond Baring says:

    What is that motor u guys are using? It's really powerful!

  9. Avataaar/Circle Created with python_avatars Mister Nautilus says:

    Do you plan on bringing it back? I want to see how this thing performs with correct gearing!

  10. Avataaar/Circle Created with python_avatars Jasson Khoo says:

    the pedals irritates me, i understand it's temporary… but gahhhhhh

  11. Avataaar/Circle Created with python_avatars Craig Jones says:

    If you over gear the motor you will cause issues. A taller gear on the motor will give you top end. You need to gear down for tourq to help pull that weight

  12. Avataaar/Circle Created with python_avatars Nathan Rush says:

    So basically I used to work at a go kart track called MB2 electric karting raceway in California. And I worked there is a mechanic and seen the size of the gear on that motor scares me. You are severely overwhelming the motor and controller. The motor should have at the most a 20 tooth sprocket but my suggestion for your set up would be a 16 tooth sprocket on the motor and a 30 tooth on the axle. And the motor and motor controller should have some sort of fan blowing on them for cooling. The motor controller should have an output for a temperature sensor input and fan output. Hope you guys can read this and take my advice and make up bad ass go kart.

  13. Avataaar/Circle Created with python_avatars Kieron Moore says:

    Would have been worth spending the extra for lithium ion, would have saved 20kg+

  14. Avataaar/Circle Created with python_avatars Kevin Sellsit says:

    Is the re-gear done yet? This thing will be wicked! Use the smallest gear you can find and fine tune it with the axle sprocket.

  15. Avataaar/Circle Created with python_avatars Paul Morrow says:

    What is the kV on that motor? Also, did you all have it wired in a delta or wye configuration? Based on the voltage that you are running, the kV of the motor, the tire circumference, and the gearing you can figure the top speed. Since gear ratio is the easiest to change, figure what you want top speed to be and then go with that ratio. Also, brushless motors dont really care about voltage, as long as the insulation in the windings can take it. Set your controller to limit the acceleration, this will limit the current going to the motor and keep it from burning up.

  16. Avataaar/Circle Created with python_avatars Victory First says:

    You guys make my day with no fear in the face of the unknown.

  17. Avataaar/Circle Created with python_avatars Andrew McAllister says:

    What are you using as low voltage protection for those calb cells. Also how are you charging and balancing them.

  18. Avataaar/Circle Created with python_avatars Potatoes and Trucks says:

    This thing looks really heavy. Also you have to wait to charge and the battery discharges quickly. Not a huge fan of that kart but ok

  19. Avataaar/Circle Created with python_avatars Fernando Lucchetti says:

    put a CVT gearbox, I think it will run and have more strength like that heheheheh

  20. Avataaar/Circle Created with python_avatars Iosif Todor says:

    Jesus loves YOU! He care about you and even died for you and for your sins! You need to repent and trust in Him!

  21. Avataaar/Circle Created with python_avatars slowkiwi 31 says:

    Just a heads up you need to move your seat back or lean your seat back and move the pedals/pedal mounts forward as you should not be touching the steering wheel with your knees.

  22. Avataaar/Circle Created with python_avatars Alaskan Bull Worm says:

    Will there be a full blueprint and set up to the whole build once everything is done? Really want to build one myself

  23. Avataaar/Circle Created with python_avatars Hans Jürgen says:

    Zu viel vibration an der entribswelle wo der Zahnrad auf den Motor geschweisst ist

Leave a Reply

Your email address will not be published. Required fields are marked *