Engine bayMotor assemblyRear battery pack
OwnerIan Hooper
Owner's Other EVs1990 Mazda MX5 Miata
2001 Honda NSR150
LocationPerth, Western Australia Australia map
Vehicle2000 Mazda RX7
Type RS
MotorNetgain Impulse 9 Series Wound DC
ControllerCafe Electric Zilla 2K EHV
Batteries792 Headway 38120, 3.20 Volt, Lithium Iron Phosphate
88S9P arrangement (48S9P front, 40S9P rear)
System Voltage280 Volts
ChargerZivan NG3 288V
HeaterHotStart tank heater in water circuit
DC/DC ConverterIota DLS-55 HV
InstrumentationZEVA Fuel Gauge Driver Plus
Top Speed90 MPH (144 KPH)
Direct drive, motors would hit rev limit around 150km/h.. May
or may not have any torque left at 5500rpm.
AccelerationBack-of-envelope calculation suggests 0-100km/h (0-
60mph) in ~3.5s
Range90 Miles (144 Kilometers)
Based on 175wh/km estimate for aerodynamic 1.3T vehicle.
Watt Hours/Mile280 Wh/Mile
EV Miles
Start:75,000 Miles (120,675 Kilometers)
Seating Capacity2+2 (back seats in RX7s only good for legless midgets)
Curb Weight2,900 Pounds (1,318 Kilograms)
Tires245/35R18 rear, 225/40R18 front, on 18" BBS RGR forged
Conversion Time9 months (March-Dec 2012)
Conversion CostLots.. ~AU$55K including donor.
My latest EV conversion project and showcar for the business. High performance
components in one of my all-time favourite vehicles.

As well as my daily driver, I'm planning to use it for some motorsport here in Perth
(Australia) to help raise the awareness and profile of EVs, and dispel any misconceptions
about their performance!

code by jerry