Industrial Motor gokart build

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
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Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Industrial Motor gokart build

Post by Quinc » Nov 27, 2017 2:31 am

Been tinkering with mini motos, mini bikes and razor dune buggies for the last couple years and wanted to get something a little more comfortable. I bought a Leeson motor off ebay for a great deal and after a year of searching I finally picked up a kart racing chassis for a decent price.

Plan:
48 volts
7200 rpms
10T drive sprocket
67T axle sprocket
#35 chain
11.5" tires

Goal:
Have fun and ride around neighborhood with kiddos

Motor:
Leeson
1HP
24vdc
3600 RPM
TEFC

Controller:
Kelly KDZ48400 24v-48v 400a controller

Batteries:
48v
Starting with SLA 12v 18AH. (I have a bunch of them from other projects, but might move on to lipo, leaf, or just larger sla's)

Kart:
Haase stage 2 (First time with a real gokart and learning as I go)

Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Nov 27, 2017 2:43 am

So far the kart is a little rough.. I took off the axle and cleaned it up added a sprocket hub and am now waiting on a new sprocket. And still need to figure out how to mount the seat. Once I have it how I like it, I will strip her back down and paint etc.

Tonight I started on building a bracket for the motor to attach behind the axle. My plan as of now is to put the batteries where the engine would normally go on the kart, and moving them however needed for balance and weight distribution. I am also trying to keep from welding or drilling the frame.
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IMG_20171126_194114965.jpg (128.38 KiB) Viewed 632 times

Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Dec 06, 2017 2:16 pm

Kiddos' 4th bday was Saturday and also taking care of a 3m old so the build is starting off a little slow.

Ordered new rear axle bearings for her today and just got the cheapo 3pin Chinese foot throttle for it in the mail. Rather then "make" the foot throttle work I am going to go with a pull throttle.

Always a good sign when it comes new with rust.
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Not sure where the motor POS wire should go yet.
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Kelly i bought off ebay mostly wired up:
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Last edited by Quinc on Jan 09, 2018 11:03 pm, edited 2 times in total.

Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Dec 06, 2017 2:26 pm

Spent some time cleaning up the axle. She spins a hell of a lot smoother now with new bearings. Also a new sprocket hub and 67T #35 sprocket.
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Getting closer!
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Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Dec 07, 2017 10:28 am

Motor mount is complete! Has the ability to go side to side and back-forth fairly easy. Used a 3/8" plate of aluminum.

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And started on the battery tray:
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Drunkskunk
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Location: Dallas, Texas. U.S.A.

Re: Industrial Motor gokart build

Post by Drunkskunk » Dec 07, 2017 1:43 pm

Looks like fun. I've had cars with less stout brake rotors.
Had a good laugh at the "Kelly" controller diagram.
Buy the ticket, take the ride.
Monster Bike:https://endless-sphere.com/forums/viewto ... =6&t=38667

Quinc
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100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Jan 09, 2018 11:02 pm

Been slowly making progress. Have the seat mounted and spent way to much time fabing the hall effect sensor for the foot throttle. Next on the agenda is battery placement.

Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Jan 22, 2018 11:46 pm

Test run this weekend! Did a quick hookup of the yi-yun 190amp controller and 4x18ah SLA batteries for 24v 36ah. Made it around the block 4 times and the engine was still ice cold. If I tried to go full throttle from a stop it would cut out. Going to try another 2x18ah batteries for 24v @ 54ah.

Doing some research and looks like I need 56ah SLA for 400amps, or I can run 16ah AGM battery for the same 400amps. Pretty interesting. So I might try 4x 35ah AGM batteries. Or if anyone has some electric car cells they want to make me a deal on. :)

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Hillhater
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Location: Sydney ..(Hilly part !) .. Australia/ Down under !

Re: Industrial Motor gokart build

Post by Hillhater » Jan 23, 2018 6:41 pm

I assume you realise that the Haase chassis you are using is designed and set up for oval dirt track use.
I do not expect you intend to "race" the completed kart at all, but if you do i suggest you stick to LH oval tracks as you will find that fast RH corners will be a very tricky manouver. !
You could make some adjustments to the front end geometry and wheel hub location to minimise the corner bias, but you wont be able to achieve an even corner balance.
But have fun anyway...(dirt ovals can be a LOT of fun ! :wink:
This forum owes its existence to Justin of ebikes.ca

Quinc
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100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Jan 23, 2018 10:43 pm

Hillhater wrote:
Jan 23, 2018 6:41 pm
I assume you realise that the Haase chassis you are using is designed and set up for oval dirt track use.
I do not expect you intend to "race" the completed kart at all, but if you do i suggest you stick to LH oval tracks as you will find that fast RH corners will be a very tricky manouver. !
You could make some adjustments to the front end geometry and wheel hub location to minimise the corner bias, but you wont be able to achieve an even corner balance.
But have fun anyway...(dirt ovals can be a LOT of fun ! :wink:
This is just going to be used for chasing my kids around the neighborhood on there gokarts.(neighbors less likely to call police when you are quiet) If I was going to race I would be running a 2stroke. ;)

Quinc
100 mW
100 mW
Posts: 46
Joined: Apr 18, 2016 11:21 am

Re: Industrial Motor gokart build

Post by Quinc » Feb 09, 2018 2:07 am

Hillhater wrote:
Jan 23, 2018 6:41 pm
I assume you realise that the Haase chassis you are using is designed and set up for oval dirt track use.
I do not expect you intend to "race" the completed kart at all, but if you do i suggest you stick to LH oval tracks as you will find that fast RH corners will be a very tricky manouver. !
You could make some adjustments to the front end geometry and wheel hub location to minimise the corner bias, but you wont be able to achieve an even corner balance.
But have fun anyway...(dirt ovals can be a LOT of fun ! :wink:
Well, got tired of only make left hand turns so I adjusted the front and rear wheels to line up more like a straight kart and I can now make RH turns fairly quick. :) Plan is to pick up some electric car batteries this weekend and to try her out at 44v+. Going to also pull the motor off and replace the 8ga wires with 0ga.

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