Owner's Other EV1972 Attex 295
LocationIthaca, New York US map
Email email image
Vehicle1988 Pontiac Fiero
1988 Fiero running HPG/HPEVS AC31 AC induction motor and Sky Energy, (CALB), Lithium batteries
MotorLeeson HPG/HPEVS AC31 3-Phase AC
Three phase AC induction motor. Leeson motor modified by HPG/HPEVS
DrivetrainHPG/HPEVS AC31 motor, hooked to clutchless stock 5 speed transmission.

5 speed broke, now converting to a TH125 automatic, direct drive without a torque converter.
ControllerCurtis 1238-7501
Batteries36 CALB/Skyenergy SE 100, 3.20 Volt, Lithium Iron Phosphate
LiFePO4 100 amp hour cells, actual capacity 110-114 amp hours
System Voltage115 Volts
ChargerManzanita Micro PFC30
PFC30 variable voltage variable current charger
Heater1500 watt Katz fluid heater plumbed into existing heater core.
DC/DC ConverterMeanwell PSP-600-15
AC/DC Power Supply Single- Output 15 Volt 40A 600W
InstrumentationCurtis 840 gauge which can switch between amps, volts,RPMs, motor temp, controller temp.
Top Speed80 MPH (128 KPH)
I've hit 65 in second gear at 6000RPM, only gone to 70 in third.
Range45 Miles (72 Kilometers)
45 miles at 55 mph using full 110 amp hours of pack capacity. Recently did 50 miles in mixed driving.
Watt Hours/Mile274 Wh/Mile
300 estimated wh/mi depending on conditions and type of driving, hoping to do better.
Estimation turned out fairly accurate. I get around 320 wh/mi in hilly areas and around 270 wh/mi on the flat. I think with some more work and better tires I can improve that a bit.
Seating Capacity2 adults
Curb Weight2,500 Pounds (1,136 Kilograms)
Conversion Time1 year, on and off.
Conversion CostAround $12,000 I think, haven't done the math yet.
I'm calling it completed, though I'm sure I'll keep tweaking things

code by jerry