MiataMotor mounted upAC-50 Drive systemAnother mounted motor viewCharging Pack
OwnerChris Harriman
Owner's Other EV2002 Ford Focus
LocationTucson, Arizona United States map
Vehicle1999 Mazda Miata
I've built many other EVs in the past and this time I wanted
something fun. I watched Craigslist for months before finding
this car. The reactions I get when people find out this car is
electric as compared to my other EVs are much bigger and
more positive.
MotorCurtis AC-50 3-Phase AC
DrivetrainStock Miata 5 speed manual transmission with clutch retained
ControllerCurtis 1238-750
Batteries32 Thunder Sky 160AHA, 3.60 Volt, Lithium Iron Phosphate
No BMS currently installed.
System Voltage115 Volts
ChargerElcon PFC 2500
Charging to 3.65v per cell.
HeaterHeat Pump, will be part of the A/C system.
DC/DC ConverterIota
InstrumentationStock & Curtis gauge.
Top Speed100 MPH (160 KPH)
Gets to 55MPH real quick with plenty of power left over.
I don't have anyplace to test top speed.
AccelerationVery fast, seems to be as fast as a stock Miata
Range90 Miles (144 Kilometers)
Have not fully tested
Watt Hours/MileNot Tested
EV Miles
Start:86,550 Miles (139,258 Kilometers)
Current:86,601 Miles (139,341 Kilometers)
Total:51 Miles (82 Kilometers)
Seating Capacity2 adults
Curb Weight2,440 Pounds (1,109 Kilograms)
This is per the car scale at the recycle center.
Tires4
Conversion Time60 Hours
Conversion Cost$16,800 so far
This is a very fun car to drive! Going slow through our neighborhood with the top down
is almost like being on a magic carpet. No sound and the world just seems to float by.
Still working to improve car. Working on better battery mounts to lower the cars CG and
refining layout of EV components.

code by jerry