Guest
Homemade Electric Buggy - Crosskart - Go Kart range test update: Hi folks. In this video I'm going to show you how I built my own electric buggy from start to finish, and how it drives. I set up chapters in the video so you can skip to the drive footage if you've already watched the build series. If you haven't seen the series yet, I linked to each episode below so you can check them out if you want more details. There's 10 episodes altogether, not including videos of the tools that I had to make along the way, so I had to leave a lot of things out of this video. So, what can this machine do? Technically it's a crosskart, or at least inspired by crosskarts. It's a bit higher than most karts but a bit lower than most off road buggies. It only has rear wheel drive, so it's obviously not an extreme 4x4 or rock crawler. I wanted something to rip around my own private dirt track with, but isn't completely useless on the trails either. A universal play machine. In terms of power, the motor is rated for 6000 rpm, can deliver 24 kW continuous and 55 kWp (72 hp), and 99 ft-lbs of max low end torque at a system voltage of 102V nominal. With the 22“ Wanda tires and 5:1 gearing that I'm using, that translates to around 500 ft-lbs at the wheels and a top speed up to 120 km/h. For perspective, a Polaris RZR 900 buggy engine provides up to 88 hp and 60 ft-lb of torque, and has a top speed of around 100 km/h. In terms of powertrain performance, they're comparable. I haven't tested the range of the battery yet, but will soon. A rough guess based on what we can see in the video, it should provide at least 100 km per charge with non-stop highway driving using constant power, although that's not what it's built for. On the trail I should get around 150-200 km per charge with the regen function operating more frequently (more braking = more charging). Similar to the 200 km range that the RZR 900 offers with it's fuel tank cap. Driving hard on a track, I'm assuming around 80 km/charge. Enough for a 40-80 lap race and more than enough for time trials. SPECS Power: 24 kW continuous, 55 kWp for 60 sec (72 hp) Motor: ME1616 brushless IPM 3 phase AC Max torque (at motor shaft): 134 nm (99 ft-lb) ESC: Kelly KLS-8080N-NPS, programmable Transmission/gearing: chain driven LSD w/ 5:1 gearing Battery: , 14.7 kWh LiFePO4 Charging: 1 hour charge @ 1C max Discharge: 3C continuous, peak Range: 80-100 km on mixed terrain @ 60 km/h Cooling: Active air and liquid Regenerative braking Electronic forward and reverse Weight: 465 kg (1027 lb) Wheelbase: 203cm (80“) Track: 160cm (63“) Ground clearance: 178mm (7“) Chapters: 0:00 - Chassis 2:53 - Suspension & steering 7:20 - Powertrain 8:20 - Body panels 10:55 - Bucket, harness & brakes 15:09 - Cooling system 17:12 - Paint 19:00 - Wiring 23:37 - Test drive MUSIC 'Dark Revelations' by Overdrive Studios: 'Cinematic Rock Trailer' by soundride: VIDEO LINKS Chassis: Suspension: Powertrain: Body panels: Battery: Seat and brakes: Cooling system: Dashboard and charge port: Limited slip conversion: Paint: Wiring: Sheet metal brake: Vacuum former: Tube Bender: POWERTRAIN COMPONENTS ME1616 motor, KLS96601-8080IPS controller with sin/cosine sensor, 600A main contactor, and throttle: contact Fany to match and price at sales@ 32650 LiFePo4 battery cells: 300A Daly BMS: F series charger: Website: Follow RST on Facebook:
