DynoBattery back2,5kwh battery
OwnerKolme Faasiline
LocationTallinn, Harjumaa Estonia map
Web/EmailWebPage email image
Vehicle2015 Kart
Tony racer frame with separate front brakes
handled from the wheel.
Motor Used Zero motorcycle motor
Zero 75-7 motor with carbon fiber wrapped rotor
and custom built air ram through motor.
Drivetrain50mm rear shaft with 11" regular kart tires.
ControllerSevcon Gen 4 Size 6
Custom built water cooling and controller temp
never go over 50 degrees celsius.
BatteriesA123 cells, 100.00 Volt, Lithium Iron Phosphate
1st battery is using A123 pouches 20Ah
in 34s2p config. Total 4kwh
2nd battery is using A123 ANR 2,5Ah
in 34s10p config. Total 2,5kwh
3rd battery is using Lipos 5Ah
in 28s7p config. Total 3,5kwh
ChargerElcon 3kw
CAN controlled charger. Actually I have two of
them and can charge with 6kw between races or
charge two batterys at the same time. Each
battery has their own 3pcs of zeva 12BMS units
and one olimex CAN controller.
DC/DC Converter 100W for BMS and fans.
Each battery has built in 100W converter for BMS
and olimex board. It is used also for controller
cooling pump and battery cooling fans.
There is another 100W used for fans for the
InstrumentationCycle Analyst
Top Speed113 MPH (181 KPH)
When racing then top speed is 140km/h due the
sprocket size. 15 to 36.
With 15 to 22 sprockets top speed I got was
182km/h, then road ended.
Acceleration2,5 seconds to 100km/h
12 seconds to 1/4 mile
Range10 Miles (16 Kilometers)
It depends of the battery I'm using.
but 10 to 15 laps (1 lap is 1km) in pushing hard
Watt Hours/Mile250 Wh/Mile
Usually 2kwh per 10 laps. And one lap is around
Seating Capacity1
Curb Weight300 Pounds (136 Kilograms)
This is without driver.
Tires11" kart sliks
Conversion Time4 months to first prototype.
Then envoled it 2 years to current condition.
Conversion CostA lot more than a gas powered top end racing
Additional FeaturesIt has fast changable batterys. It takes 1 minute to change a
Battery voltage is in the edge of sevcon max allowed voltage, so
regenerative braking is disabled.
Maximum power from battery recorded ~60kw.
Maximum power to the ground dynoed ~75hp.
Acceleration video:

Top speed video:

Dyno video:

One race from many against 125cc racing karts:

code by jerry