|Owner||Peter C. Thompson|
|Location||San Diego, California US map|
|Vehicle||1975 Porsche 914 |
Converted 914 using Electro Auto's AC914 kit. Midway through the
conversion, discovered that the lead acid batteries were not strong
enough for the motor, switched over the lithium. About the only
thing left from the kit is the battery racks - I'm switching over to a
BLDC 80kw motor.
|Motor||unknown GMP25L1 Brushless DC|
Used to be the Azure Dynamics AC24. Now the Greatland Electric
Motor Company's GMP24L1 (80kw) motor.
|Drivetrain||Standard 914 transmission (completely rebuilt), with strengthened |
Gretland Electric Motor Company. Liquid cooled controller for BLDC
|Batteries||108 CALB/Skyenergy SE60AH, 3.40 Volt, Lithium Iron Phosphate|
Monitored by mini-BMS from Clean Auto. No longer using Elithion
BMS, as it couldn't maintain SOC nor could it stop having
|System Voltage||370 Volts|
|Charger||Manzanita Micro PFC-20|
|Heater||None (yet - www.canev.com makes a good one).|
|DC/DC Converter||Azure Dynamics/Solectria DCDC 750|
Older DC-DC converter producing 13.5 volts.
|Instrumentation||Voltmeters and ammeters for pack and aux battery. |
|Top Speed||90 MPH (144 KPH)|
Quite able to keep up with 70mph traffic.
|Acceleration||0-60 in roughly 11 seconds.|
|Range||55 Miles (88 Kilometers)|
55 miles at freeway speed (70 to 80mph). Longer range at city
|Watt Hours/Mile||350 Wh/Mile |
Overall it got 320 whr/mile - but this also included some autocross-
style driving by my mechanic. "normal" driving reduced it to 310.
|Seating Capacity||2 adult|
|Curb Weight||2,260 Pounds (1,027 Kilograms)|
Curb weight at the recycling center scale.
|Conversion Time||2 years and counting.|
|Conversion Cost||Car - $7k. Kit - $14k. Batteries, BMS, Charger - $15k. DC-DC |
converter - $400. Transmission - $2.5k.
|Additional Features||Renovated suspension. Rebuilt transmission.|
|Major learning experience. |
For those just starting - get a much newer car. :)
Also, if you buy an air-cooled motor, make sure the motor controller can turn a fan on or off for
Switching to BLDC liquid cooled motor and controller. Need to have better control over the heat