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70hp Electric Go Kart build V2 // Part 3 

Kevin O'Brien
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I started this kart build around a year ago. I bought the frame on January 17 2021 and this is how far I have gotten till now (given that I filmed this starting 3 months ago). Its insanely fast from 0-30 probably around 2 seconds but sharply stops accelerating because of the short gearing. As of now, it is only pulling ~25Kw so new gearing will be done in the next part.
This is probably going to be a 4 part series.
The Shifter kart frame is a haase blizzard
Songs used
Patrick Patrikios - One Night Away
Rei brown- Where Did I Go
Closed On Sunday- juice wrld ~ robbery ~ lofi
Ramzoid- Milky Way
Forklift motor Belt drive racing go kart electric go-kart ribteck carbon fiber seat a123 batteries anr26650m1b DIY diy fast crazy insane fastest electric go kart 50kw 50000 watts 0-60 0-100 bms charger green tires lifepo4 dodge shifter kart brake caliper front brakes Alcantara steering wheel

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31 янв 2022

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Комментарии : 210   
@rumpelstiltskin9729
@rumpelstiltskin9729 9 месяцев назад
That dude needs shoes lmao can’t imagine going that fast without them
@rafaeldevega8895
@rafaeldevega8895 2 года назад
So good to finally see it completed! That thing is awesome man!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Lezzzgoooooo. If your around we should ride around together
@rafaeldevega8895
@rafaeldevega8895 2 года назад
@@Kevin.OBrien44 I’ll be in Charleston a while but I’d love that if I came by! I’ll definitely have to see it
@hazzal0789
@hazzal0789 Год назад
These are so sick
@barrymallon2771
@barrymallon2771 2 года назад
Good job lad, it really is good to see the trial and error, and then the end result, really enjoyed it, thanks
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks! more parts to come soon!
@boredmug
@boredmug 2 года назад
Clean your solder iron tip and use flux and you'll have a much easier time with the soldering. Cool project!
@AllThingsElectric_
@AllThingsElectric_ 2 года назад
Nice bro! This is sick!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks. Your karts are gonna be sick too
@b0ngd0nkey
@b0ngd0nkey 2 года назад
Awesome build! 🔥 Props on the freestyle shark 🦈 ⌚
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks! Ive had it for like 4 years now and gone through 2 bands.
@VFYofficial
@VFYofficial Год назад
Just watched all three parts, great build 👍
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
Thanks!
@random._.nobody911
@random._.nobody911 2 года назад
Bruh you deserve so much more subs like 10 million ur work is a masterpiece
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks man that's what I'm aiming for
@Jueky
@Jueky 2 года назад
this is amazing. great job!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Glad you like it!
@gk611
@gk611 2 года назад
Thats looks so insane! You made it bro
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks man!
@AGBO-electronics
@AGBO-electronics 2 года назад
Wow cool inspirational video. Keep up the good work😀
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks mate!
@JakesMusicPalace
@JakesMusicPalace 8 месяцев назад
You sir are the McGiver of go karts, very interesting use of garage tools and mad skills to just get it done. Now about that battery pac, charge controller and wiring, this all a prototype needs in concept. Love the rubber band throttle👍👍
@Wineman3383
@Wineman3383 Год назад
Love the karts brother.
@michaelchagnon7390
@michaelchagnon7390 2 года назад
that things sick. looks fast asf
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah its so fun
@jlitka7019
@jlitka7019 2 года назад
Beautiful
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
YESSIR
@Peter_Monti
@Peter_Monti 2 года назад
you have a bright future ahead of you, I'm very impressed.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks!
@WillPool
@WillPool 2 года назад
This is awesome! On the next one, could you show a diagram of how it's all wired up? It would be cool to see how it all goes together.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
yeah sure
@campeck944
@campeck944 2 года назад
@@Kevin.OBrien44 what kart frame and front brakes are you using? I have a 60kw capable hpevs ac-9 on the way! Also where did you source your belt drive components? Thanks!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
@@campeck944 It is a hasse blizard and it cane with the front brakes but I think they are crg ven 09, I got the belts off ebay www.ebay.com/itm/165155075945?epid=2296382803&hash=item2674027769:g:Oa8AAOSwIPFhe3Ej You kart is gonna be like this? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0vBvhBHm1L0.html&ab_channel=velkart
@campeck944
@campeck944 2 года назад
@@Kevin.OBrien44 @Kevin O'Brien yeah that looks like an ac-9! Where can I find out more info on that one? The videos barely show it. I have a few more questions about your cart. How wide is your drive belt? You just sourced dodge 8m timing belt parts off ebay for the belt, and both pulleys? The one is that listing says its 30mm wide but your belt looks like 2". The final pulley looks to be taperlocked to the keyed cart axle? Isnt that a 48v motor? But your pack is 24s8p. 90v haha. I might do the same pack as you. But trying to pack more than 2kwh on a cart in a123 cells starts to get big and heavy fast.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
@@campeck944 yeah my belt is 50mm wide in this video but I got new pilots that are only 30mm wide. Both are taperlocked
@kurthammack9867
@kurthammack9867 Год назад
Great project I bet You could get a little bit more power by going to a chain instead of the belt but the belt is quiet
@josefkeup7468
@josefkeup7468 Год назад
That end product looks really fun, I just wish I knew what you were doing when you built it.
@matthewpringuer-james7527
@matthewpringuer-james7527 2 года назад
Ur a legend man I researched into go karts but got real confused
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Thanks! I can probably answer some questions you have if u have any
@clarkscabin
@clarkscabin 2 года назад
Sick build dude! I just built one as well and made my own series on my channel- very similar, just some different parts and not quite as fast as yours but very fun to make!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I'll check it out!
@creativetech215
@creativetech215 8 месяцев назад
Thid is awesome project, and i liked it alot. Also when are you posting again?
@rileylee3223
@rileylee3223 2 года назад
Hay bro nice build, great videos just wondering would u ever sell one of ur go carts
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah I actually just sold my old kart a couple months ago, but I'm keeping this one for now. Maybe ill sell it in a year or two but ill let you know if i remember
@corbinhawes5404
@corbinhawes5404 2 года назад
you should look up plum quick golf cart motors if you want the best for that size
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
ok thx for the recommendation
@derekdodd6823
@derekdodd6823 2 года назад
Juice wrld for background music I love itt
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah its also just barely not close enough to the original so I don't get copyrighted
@michaelbuckers
@michaelbuckers 2 года назад
LMAO @ that tiny cap across those huge leads.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
yeah it looks weird lol
@peterlingas
@peterlingas 2 года назад
This is so cool. I've never made a gokart before but I want to make an electric one before summer. What motor are you using for the old cart and how fast can it go?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
For the old kart this is the video all of the parts are in the description ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-wkHb9ttc9z4.html
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
The old one was cheaper too only like ~$1000
@radutz_
@radutz_ Год назад
Hello, I want to make a electric kart. I have allready a good motor, what controller should I use and what batteries? I want to make a budget Project for start.
@tonykartracer8032
@tonykartracer8032 2 года назад
Kid's got ballz taking off like that then looking behind him instead of concrete buildings and dips in front of him.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
U get used to looking back in this kart😎
@CFLDumpsters
@CFLDumpsters Год назад
Holy 💩 that’s fast!! Geezus man this is awesome what was you’re gear ratio? Also what was top speed?
@Kevin.OBrien44
@Kevin.OBrien44 9 месяцев назад
the gear ratio was about 3:1 but with top speed of only 42. then i geared it 1.5:1 and that was perfect for top of 65ish mph
@blocksers6948
@blocksers6948 2 года назад
Incredible work! Are you an electrician or how do you know this stuff
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
lol I'm a 17 year old kid but I've been messing around with these thing for years now.
@dareneveleigh987
@dareneveleigh987 2 года назад
Man I'm really worried about you driving around on roads and parking lots that are full of people who are too distracted to notice you. Please don't get hurt man and wear a helmit.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah I always have a helmet on. Mostly for safety but sometimes for being anonymous lol. Also i would just stop before they would it me
@dareneveleigh987
@dareneveleigh987 2 года назад
@@Kevin.OBrien44 That's good. Sometimes you can't stop quick enough, you know what I mean. I've seen people just back out without looking. My wife's car was hit in a parking lot, the guy was found at fault, which is rare in a parking lot incident where typically neither is at fault. In this case the damage indicated that the guy backed out at such high speed that he was considered to be driving unsafely. My wife said, he flew out of the spot.
@Barncatfish
@Barncatfish Год назад
This is the sort of stuff you do when you're young and think you're immortal. Kudos for your aptitude, but karts are impractical and 100% illegal and obvious on the street. Stay safe young fella...
@matthewwalker6621
@matthewwalker6621 7 месяцев назад
The two big lithium battery he has each side of him will make his death fast when they explode on impact
@leviwho8366
@leviwho8366 2 года назад
Is it possible to program regenerative braking? I’ve seen with some speed controllers it’s possible but idk all the technicalities haha
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah Idk about brushed motors like i have but for AC motors its definitely possible
@jhm5016
@jhm5016 Год назад
What are the specs on the motor or even better the specific model number. I am impressed. Nice work.
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
Not sure because i got it used from ebay. It weighs about 45lbs and has a diameter of 6 inches and length of 9 inches if that helps. Also the rpm is somewhere about 3200 i think.
@nenaeneto1
@nenaeneto1 2 года назад
hi my friend. Whats engine you use in this project? You use what batteries? What time duration, in use, your batteries?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
the motor is from a electric forklift and the batteries are a123 systems. I get around 10 miles of distance or 30 miniutes
@smok3y191
@smok3y191 2 года назад
How much did this whole project cost ? I’m starting mine tmr and I’m so excited but over whelmed
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Probably around 2,000. good luck. what batteries are you using?
@SteveHartmanVideos
@SteveHartmanVideos 2 года назад
We are about to build one of these but ATV style! I am thinking about using the SAME Kelly Controller with Regen, and I want to use a belt drive system. I saw your other video where you made the belt system. Do you have any advice on the belt drive, where to get the parts for it? Also, have you figured out how to connect a speed meter and volt meter to the Kelly Controller? There are a lot of pin outs on that thing that might be useful. I was thinking I could interface an Arduino or circuit python board that drives larger 7 segment LED displays for amp draw, and volts and maybe some kind of batter level meter (that's a whole project for a different day). For speed, I could always just use a GPS meter. Does the Kelly Controller NOT have reverse or is that the limit of your motor? I'm not sure what motor that is just from looking at it.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
The reverse function is actually done with a special type of contactor called a ''reversing contactor''. The pulleys I Got them from ebay. I think they were for a dodge trucks timing belt. www.ebay.com/itm/362443468929?nma=true&si=nDtp5PkJAwgWS6dfQbF%252BhjcBZyE%253D&orig_cvip=true&nordt=true&rt=nc&_trksid=p2047675.l2557
@SteveHartmanVideos
@SteveHartmanVideos 2 года назад
@@Kevin.OBrien44 thank you!! This is helpful. We are converting an old mini ATV to EV using a lot of the same parts and Kelly controller too. I think the belt is the way to go for electric!!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
@@SteveHartmanVideos yeah less maintenance and quiet
@YHK_YT
@YHK_YT 2 года назад
after a long 5 months wait, its finally out
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Lmao sorry I’ll try to upload part 4 or just riding vlogs in the next couple weeks or month
@YHK_YT
@YHK_YT Год назад
@@Kevin.OBrien44 still waiting :troll:
@YHK_YT
@YHK_YT Год назад
@@Kevin.OBrien44still waiting :tro
@rever4217
@rever4217 2 года назад
It just came to mind, why do you have three on/off switches for the kart (I saw you have two on the dash and another on the controller I think) as well as a key ignition? So you need to turn four things on before you can get the kart going?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I was going to have one for a reverse and one for forward and one for power on, but i broke the reversing contactor so now the key is power to the esc and both switches have to be on for the contactor to be energized.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Only 2 switches and one key all on the dash
@nathanieldray5995
@nathanieldray5995 2 года назад
Please put some helmets and watch where you drive so we get to see more videos in the future. Would love to build one - thumbs up!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
It from my gopro
@stevejohnson8703
@stevejohnson8703 Год назад
Signs are a good source of plate aluminum for switch plate
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
lol yeah true
@gibledip9596
@gibledip9596 2 года назад
deciding between gas or electric for my build.....how much money have you put into ur build it's sick asf
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
prolly like 2k ish, gas would be cheaper upfront
@sammy_1_1
@sammy_1_1 2 года назад
Idk if I missed it, but what batteries are younusinng to power it? Looked like you had a whole bank of cells next to you...
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
A123 systems ANR26650m1-b cells in a 24s8p configuration.
@DescartesRenegade
@DescartesRenegade 10 месяцев назад
Does the belt ever slip or run off track? Everytime I deal with them, they always find their way off track.
@Kevin.OBrien44
@Kevin.OBrien44 10 месяцев назад
that’s why i went with one so thick. so it wouldn’t do that. i actually had it slip so i checked it and the motor bent my 1/4 in thick steel motor mount. so the belt is just fine for now
@RzzGaming1
@RzzGaming1 2 года назад
Hey so I was going to build something similar to this but was trying to find a cheaper/lighter alternative to the motor do you think a Amazon/eBay China motor would work I was going to do a Kelly 72v controller and a 72v 40ah battery and trying to get a top speed around 45mph or more
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
You could probably downsize the motor to a 20lb one and use a 72v 200a controller
@reelparadise5872
@reelparadise5872 16 дней назад
Where did you get the axle pully and belt?
@nesioraul
@nesioraul Год назад
Hey bro what motor did you use and from were?
@AllThingsElectric_
@AllThingsElectric_ 2 года назад
Bro I was about to buy that butterfly knife. I literally had it in my cart on Blade HQ 5:43
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Damn you should of got it. I couldn't find one in stock so I got a clone😥
@joedix3
@joedix3 2 года назад
Go hawks 🥳
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Lmao South river?
@josephstewart14
@josephstewart14 2 года назад
How much would you charge to build another one for someone?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I'm not taking orders to build for other people but I might decide to sell this one if I build another so keep your eye out for updates.
@SharkTank-.-Clips
@SharkTank-.-Clips 2 года назад
bro its so cool that i wanna make it by my self or yust buy 1
@SharkTank-.-Clips
@SharkTank-.-Clips 2 года назад
just
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
def should think about building one
@TheHeadShotBoom
@TheHeadShotBoom 2 года назад
Whats the total cost of the build so far and how much do you want to build one for me?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I think I've spent just under $2,000 on this and I'm not taking orders to build for other people but I might decide to sell this one if I build another so keep your eye out for updates
@brendanhogarty872
@brendanhogarty872 2 года назад
Hey man, what speed controller did you use for this? cheers
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Kelly KDZ72650E
@tannerjones9288
@tannerjones9288 2 года назад
How much did the whole build cost you I want to make one
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Probably around 2,000
@Daddychill945
@Daddychill945 Год назад
How many miles does it last on a charge
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
10 if you drive it hard 20 if your cruising
@AadiSindha17
@AadiSindha17 2 года назад
im definetley trying to make this how much did it cost you and can a person with no experience build it thanks mate sick kart
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah you could definitely do it. you'll be on RU-vid watching tons of videos to figure out how to do it though. I think I spent less than 2,000 on this one and only 1000 on my first one. When your deciding to use a brushless motor or brushed, the brushless motor setup is going to be more expensive but better for high speeds and the brushed motor is gonna be a lot cheaper.
@johnny5fingers0966
@johnny5fingers0966 Год назад
@@Kevin.OBrien44 Which one kills the battery faster? Brushed or brushless?
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
@@johnny5fingers0966 brushed usually. Brushless is more efficient but brushed is cheaper
@shrimpinpat
@shrimpinpat 2 года назад
I want to do electric as its cooler but man working with that level of power is super dangerous.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
yes it is if you dont know what your doing.
@austingarner7945
@austingarner7945 Год назад
where d you get belt drive and pulleys
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
off of ebay. "Dodge P36-8M-50-1610 High Torque HTD) 1.97" Timing Belt Sprocket 36T Taper Lock"
@AAs-vb7pv
@AAs-vb7pv Год назад
What s the name of details of your motor your useing and do you think it would handle a lot more power though it
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
its a brushed dc series wound motor that I got out of an electric forklift. I think its at its max unless I added more cooling to it
@AAs-vb7pv
@AAs-vb7pv Год назад
@@Kevin.OBrien44 OK thanks :)
@limited699
@limited699 Год назад
What go kart did you get the frame from
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
Its a hasse blizzard frame
@guiemnk
@guiemnk 2 года назад
What currents amps and voltage fits the motor?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Im not sure. When i bought it it had no label. im runing it at 80v 450a right now
@lugiminer3515
@lugiminer3515 2 года назад
When update or riding
@Pizza-xi3fs
@Pizza-xi3fs 7 месяцев назад
why do you neeed gearing on a electric motor?
@Andy-df5fj
@Andy-df5fj 2 года назад
At those speeds, I recommend a helmet or at least a roll cage.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
lol yeah i wear a helmet and these racing karts do not have roll cages because they do not flip.
@saugypotatoes4827
@saugypotatoes4827 2 года назад
how dose your acceleration work?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I have a sensor that plugs into the esc
@ricardoferreira7860
@ricardoferreira7860 2 года назад
Hello can you Tell me where do you buy the engine and the batery
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
It got the battery off batteryhookup.com and motor off ebay
@ethanford888
@ethanford888 2 года назад
What type of motor are you using ??
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Its a brushed DC motor that I bought used and it came off of a electric forklift.
@TheRook12325
@TheRook12325 2 года назад
where would one find one of these 70 hp motors?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I got it off ebay used. its form a electric forklift. its acctually rated for only 5kw ish but im pushing way more through it.
@InvertFPV
@InvertFPV 2 года назад
So how much approximately did this build cost?
@kadenbef3871
@kadenbef3871 2 года назад
78mil
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
^
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I just added most of the bigger parts up and it came to just over 2000
@MsHamzagalal
@MsHamzagalal Год назад
this is amazing . waht's the top speed and from 0 to 100 km?❤❤
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
I got to a top speed of 50 mph on gearing that was too low, but i messed up some of the battery cells before i got to do a new test with better gearing. so all I know is that it could do like 0-40 in about 4 seconds. hopefully, I can get replacement cells and do a real test eventually.
@MsHamzagalal
@MsHamzagalal Год назад
@@Kevin.OBrien44 oh it's great thank you ❤❤
@justin3131ify
@justin3131ify 11 месяцев назад
What motor did you use? If you don't mind my asking...
@Kevin.OBrien44
@Kevin.OBrien44 9 месяцев назад
it’s a used electric forklift motor i bought off of ebay. that’s about all the info i have on it
@justin3131ify
@justin3131ify 9 месяцев назад
@Kevin.OBrien44 Thanks mate 👍
@johnross2328
@johnross2328 Год назад
Have you seen the free energy generators uses a alternator and a 12 volt DC motor and it pretty much runs itself and it creates 120 volts it's small enough that it would fit on this go kart and you wouldn't have to have the need for batteries
@lucaz219
@lucaz219 Год назад
Bruh there is no such thing as free energy
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
That would be amazing, send me a link to that design!
@TweakRacer
@TweakRacer Год назад
Part 4?
@peekaboo5961
@peekaboo5961 Год назад
What motor is that
@vagautohaus4492
@vagautohaus4492 Год назад
looks super low..does it drag its ass?
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
It sits about 10mm of the ground. It scrapes a decent amount
@jasonyolo5362
@jasonyolo5362 2 года назад
can you please drop a link of the motor for me man?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
I bought it off ebay used. Just try searching forklift motors and you'll find one similar
@MindCrime550
@MindCrime550 2 года назад
Where is the 70hp number from? That's like 52kw
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Its the max output of this system. My esc can do 650 amps and my battery is 80v. Ive hit 30kw but that's with short gearing so im working on that for the next vid.
@normellow
@normellow Год назад
Protect the inside of that motor from rocks and pebbles also water
@vijaykorvekar1009
@vijaykorvekar1009 Год назад
What is the motor efficiency
@Kevin.OBrien44
@Kevin.OBrien44 9 месяцев назад
bad lol it heats up a lot
@coolkid5209
@coolkid5209 Год назад
In the next video can you add a handbrake
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
That would be cool
@itsmoneyoverbitches
@itsmoneyoverbitches 2 года назад
How much is the setup
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
probably around 2000
@kayschildbach6282
@kayschildbach6282 Месяц назад
How is it allowed to drive t on the streets what if you carash into another car which insurance pays the bill??
@krustyegirl7334
@krustyegirl7334 Месяц назад
Where should he ride it? Most sidewalks are too small
@chatmatchamp
@chatmatchamp 2 года назад
The next question is can it do a burn out or drift ? Lol
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Haha yeah with cold or old tires it can but not with my fresh ones lol
@v10lifestyle49
@v10lifestyle49 2 года назад
move battery to middle behind seat
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
maybe ill add a third one back there
@murfspop
@murfspop Год назад
drill some 1/8" holes in yur belt drive sprocket.If you get caught in the rain yur belt will snap. (WKA @,Portland International )
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
Ok really? why does it snap?
@murfspop
@murfspop Год назад
@@Kevin.OBrien44 2 things ,....the water makes the belt get colder and thus tighter .The water gets between the belt and the sprocket and then it goes pow. I saw a lot of this at the Portland IKF Nationals.
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
@@murfspop interesting! ok
@murfspop
@murfspop Год назад
@@Kevin.OBrien44 It may not matter at 30 MPH ...but at 115 .........it does. Easy fix . Why risk it. The Portland guys just watched the So. Cal. guys blowing belt after belt.
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
@@murfspop yeah. If I ever plan to drive it in the rain I’ll do that. I’ve only ever drove in snow though i don’t think the rain would mix well with an electric drivetrain
@stinkysoulscanttellyou8695
@stinkysoulscanttellyou8695 2 года назад
Whats top speed?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
With the hearing in this video it was 42mph. I got new gears though and it got up to 55. I just got a third set of gears so now I should be past 60mph
@thatguy-vw4kh
@thatguy-vw4kh 2 года назад
I came here from reddit that's bad!!!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
That’s bad?
@thatguy-vw4kh
@thatguy-vw4kh 2 года назад
@@Kevin.OBrien44 bad as in really cool!
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
@@thatguy-vw4kh oh lmao
@user-jo2jy9ct7l
@user-jo2jy9ct7l 2 года назад
How old are you?
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
17
@philipnorthfield
@philipnorthfield 2 года назад
@@Kevin.OBrien44 I built my girlfriend an electric bicycle instead of buying a ready made one and people were surprised and impressed, you should be very pleased with yourself building that go-cart. Very impressed with your cable terminal solution using copper pipe. My next project is to make an old quad bike I have electric..... You've got a well earned sub. Oh and I am 51 and 3/4 never too old to learn something new though keep up the good work and be careful in that thing.
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
@@philipnorthfield thanks! Hopefully your quad goes well. Maybe upload a video of it moving when that time comes
@Tropicsca
@Tropicsca Год назад
70hp electric is 52000 watts, are you sure about your numbers..
@capolean2902
@capolean2902 Год назад
top speed? i turned a gas bike into a electric one and it goes 57mph
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
I got to a top speed of 50 mph on gearing that was too low, but i messed up some of the battery cells before i got to do a new test with better gearing. so all I know is that it could do like 0-40 in about 4 seconds. hopefully, I can get replacement cells and do a real test eventually.
@zombieplant3048
@zombieplant3048 2 года назад
ever thought about a motorbike engine powerd one im curently build a cbr 600 powered one (around 90 ) hp
@Kevin.OBrien44
@Kevin.OBrien44 2 года назад
Yeah that sounds like its gonna be sick! I was going to do a electric build on a dirtbike frame but decided to do an electric kart instead because I already have a gas dirtbike
@willcnavaja9167
@willcnavaja9167 Год назад
Do my go-kart
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
I used a kelly controller kdz72650
@Doitology
@Doitology 2 года назад
In your next video, dont add music. its so distracting. I can hardly hear anything you're saying.
@janschmitz2583
@janschmitz2583 Год назад
There is no way this thing has 70hp.... Maybe 7kw but even that would max out these batteries
@janschmitz2583
@janschmitz2583 Год назад
I'm pretty Sure it has 7 HP continuous based on the bms you used.
@Kevin.OBrien44
@Kevin.OBrien44 Год назад
@@janschmitz2583 I bypassed the bms for discharge
@jeffreyodachowski6247
@jeffreyodachowski6247 Год назад
Omg are you serious??? This go kart would sell for over $8,000!!! You should be in business by now. Dude you could sell these for a minute then open up your own race tracks. I mean that's living!! your kids would be happy with your life too lol. I hope you still have this thing I'm sure with the right gears you could do over 100mph. Make another one do some more research so you can make one that out runs a 125 Shifter kart and you should be set. If you made that I bet you could sell it for over 20k
@Kevin.OBrien44
@Kevin.OBrien44 9 месяцев назад
yeah there’s a couple companies selling electric karts. there doing well from what i hear but yeah there’s definitely a business out there
@AirgunChannel
@AirgunChannel 11 месяцев назад
your music is on volume level 10 and your voice is volume level 1. If you make more videos please don't do that.
@Kevin.OBrien44
@Kevin.OBrien44 10 месяцев назад
ok i’ll try i’ve always had that problem
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