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Power steering pump

Written by admin. Posted in Power Steering Pump

Since the BMW originally had it’s power steering pump driven off the gas engine, an alternative is needed. This Toyota MR2 power steering pump is a likely candidate:

It’s internal 12V electric motor is designed to run full time and is smart enough to know when to idle back when not being used to reduce power consumption. 

It also has a digital input that gradually reduces the motor speed (and thus power level) when the need diminishes, i.e. on the highway.  

All other components from the original power steering system will be used.

We purchased the original Toyota connectors which are very high quality O-ring sealed interconnects. It just so happened that we were able to use a left over 50A circuit in the BMW that was used for the exhaust emission control pump, which was exactly the supply capacity needed to power this pump.


Converter delivered

Written by admin. Posted in DC/DC converter

1200 Watt converter as delivered:

This unit converts the 700 VDC battery pack output down to the 12 Volt level to maintain the charge in the existing automotive power system just as the alternator did with the original gas engine.


What will replace cardboard box

Written by admin. Posted in Battery Pack

No longer a cardboard box:



Written by admin. Posted in Power Inverter

While the development is progressing, we have been able to get a sponsorship from a local company with some AC motor drive systems coming on the market: Rinehart Motion Systems at

The motor is in their hands now for setting up the inverter and confirming by testing. We will then make a simple adaptor to attach it to the mount system already in place for the 200kW drive unit.


Little adjustment on the motor mount

Written by admin. Posted in AC Traction Motor

One more little adjustment on the motor mount:

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