OwnerAl Godfrey
LocationRichmond, British Columbia Canada map
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Vehicle1978 Porsche 928
(Euro) 5 speed (s/n 9288100272)
MotorSiemens 1PV5133WS18 3-Phase AC
106 HP peak, 9700 RPM, 380 Volt, 400 Amp 30 killoWatt, limited by inverter, liquid cooled.
DrivetrainAC motor located mid-car and coupled directly to the stock Porsche transaxle which is locked in 2nd gear for a an overall gear reduction of 6.7826 : 1. Reverse is selected electronically by the invert
ControllerSiemens Simovert
380 Volt, 282 Amp, 100 kW, water cooled, long version, 0-400 Hz, 400 Amp max out, regenerative braking, programmable with a PC through intergral RS232 connection
Batteries26 Optima D34M, 12.00 Volt, Lead-Acid, AGM
Blue Top, maintained at 28 deg C in temperature controlled, heated/insulated boxes.
System Voltage330 Volts
5 kVA transformer isolated bridge type dumb 400 Volt 12 Amp charger with a Roger Stockton regulator (work in progress ).
HeaterMES 2kw 300-400vdc pwm type liquid heater with integral circulation pump.
DC/DC Converter
90 Amp max integral with the inverter
InstrumentationE-Meter, graphic VFD (Noritake GU140x32-7000), inverter data on laptop
Top Speed81 MPH (130 KPH)
at 7000 RPM, motor max is 9700 RPM
Accelerationmodest,but am working at improving this with the instalation of an automatic gear box (trans axle).
RangeHaven't a clue yet!
Seating Capacity2 adults, jump seats removed
Curb Weight3,900 Pounds (1,772 Kilograms)
46% front, 54 % rear, GVW 4123, no susp. Mods
TiresMichelin XM+3500, 225-50R16 @50psi, not exactly LRR bear paws.
Conversion Timebetter part of 2 years
Conversion Costdon't even ask !
The power steering is optional and is controlled by the handy lever on the column that once controlled the stock Cruise Control. Almost all normal braking is done with the aggressive, hand controlled regenerative brake ,the stock 4 wheel disc brake system is vacuum pump assisted for panic stops. Special thanks to Victor Tikonov at MetricMind Engineering WebPage for much hand-holding and coaching through out the conversion ordeal.

code by jerry