- Thu Jan 03, 2019 4:27 pm
#31952
I am very excited to share my second project (wip) with the community. As a result of the invaluable help from people in this group, my first project was a success. I took a Razor E300s that someone threw away and upgraded it to an 800w, 36v scooter that went about 18 mph. I really had fun cleaning it up, upgrading it, and changing the look (see pic). Unfortunately, the escooter bug bit me hard, and I wanted something faster.
For my second project, I originally wanted to upgrade a Bladez XTR 450 (see pic). I procured 3 of them (in pretty bad shape) for around $60 on Craigslist. Decided to clean a couple of them up before deciding what to do.
I was thinking of overvolting the existing motor using lithium batteries, but after testing the 24v motor with 36v sla's, it overheated too much. After receiving some advice from zen_racer I decided to go with a Boma bldc 1500w motor. He also suggested I get a Kelly controller or Golden Motor controller. Rhyoo suggested I go with two Multistar 16000mah 6s lipos.
After purchasing the batteries and motor, I realized the Boma was going to be a pita to mount to the frame, and the lipos were too big for the battery box. Not only that, but I felt this thing was going to be pretty fast and powerful, so having only one brake and no suspension was going to be a problem. So I decided to switch strategies and see what other platform I can find that was more robust for my system. I found a Super 1000w scooter used on Craigslist for $300. It's the typical Chinese scooter, but it had what I needed: dual disk brakes, dual suspension, plenty of room for my lipos, and a spot for my Boma to drop right in. I figured it was a pretty good deal since it was fully functional and it also had an extra battery pack, so I pulled the trigger.
This is where the real journey begins. I was able to do some side jobs and earn enough money for a full upgrade including motor, lipos, charger and ps, and the controller. I have already begun my project, but I thought I'd take some time and periodically post updates so others who want to do a similar project can learn from my experience. Everything I've learned so far has come from hundreds of hours of research over a couple years. I hope others can find this thread both enjoyable and edifying.
Here are the main specs:
Super 1000 watt electric scooter 36v frame (dual disk brakes, front/rear suspension)
48v, 1500w, 4300 rpm Boma brushless inrunner motor (rpm's for Boma motors are often overstated, so taken with a grain of salt)
Kelly brushless KBS48121X mini controller
Two Multistar 6s lipo batteries (12c) wired in series for 12s (44.4v min.)

For my second project, I originally wanted to upgrade a Bladez XTR 450 (see pic). I procured 3 of them (in pretty bad shape) for around $60 on Craigslist. Decided to clean a couple of them up before deciding what to do.
I was thinking of overvolting the existing motor using lithium batteries, but after testing the 24v motor with 36v sla's, it overheated too much. After receiving some advice from zen_racer I decided to go with a Boma bldc 1500w motor. He also suggested I get a Kelly controller or Golden Motor controller. Rhyoo suggested I go with two Multistar 16000mah 6s lipos.
After purchasing the batteries and motor, I realized the Boma was going to be a pita to mount to the frame, and the lipos were too big for the battery box. Not only that, but I felt this thing was going to be pretty fast and powerful, so having only one brake and no suspension was going to be a problem. So I decided to switch strategies and see what other platform I can find that was more robust for my system. I found a Super 1000w scooter used on Craigslist for $300. It's the typical Chinese scooter, but it had what I needed: dual disk brakes, dual suspension, plenty of room for my lipos, and a spot for my Boma to drop right in. I figured it was a pretty good deal since it was fully functional and it also had an extra battery pack, so I pulled the trigger.
This is where the real journey begins. I was able to do some side jobs and earn enough money for a full upgrade including motor, lipos, charger and ps, and the controller. I have already begun my project, but I thought I'd take some time and periodically post updates so others who want to do a similar project can learn from my experience. Everything I've learned so far has come from hundreds of hours of research over a couple years. I hope others can find this thread both enjoyable and edifying.
Here are the main specs:
Super 1000 watt electric scooter 36v frame (dual disk brakes, front/rear suspension)
48v, 1500w, 4300 rpm Boma brushless inrunner motor (rpm's for Boma motors are often overstated, so taken with a grain of salt)
Kelly brushless KBS48121X mini controller
Two Multistar 6s lipo batteries (12c) wired in series for 12s (44.4v min.)
Last edited by SpaceKaseJase on Mon Jan 14, 2019 11:56 am, edited 2 times in total.