Here is the system I have settled on:
The donor car is a white Civic CX base model hatchback which I bought used in 1993. It now has 192,000 miles on it and some body rust. Everything works, except the engine is starting to fail, and the frame appears to be sound. The car is lightweight and has a driver's side air bag. Manual transmission, no power steering, no AC.

- Wasn't she a beauty?
- originalCivic.jpg (66.69 KiB) Viewed 765 times
This is what she looked like 15 years ago. Not quite so nice now, but still decent.
Main traction pack: 11 x 12V Saft NiMH modules, 6 up front, 5 in rear spare tire well.
I'm going to try first without a DC-DC converter, just a separate 12V accessory battery (probably SLA) big enough to handle night time rainstorm loads between charges, to be charged simultaneously with the traction pack when parked. I'll help it out with a solar PV panel on the dashboard. Maybe some LED lights later on.
I'm getting a small but strong permanent magnet DC motor from Lynch in England, which in theory will allow me to get some regenerative braking with a Kelly KDH 14501 controller. The battery and motor choices raise the budget at least 50% above a more standard configuration, but it's still less costly than an AC system.
Onboard chargers: Zivan NG3 for the traction pack, Schumacher 12A smart charger for the accessory battery.
Instrumentation: PakTrakr now claims to have a system that will monitor 12V NiMH modules, so I will probably combine that with some old analog meters I can get for free where I work. A good voltmeter on the 12V system will be important.
I intend to replace the heater core with an electric (ceramic) heater element (~1500W) for cabin heat and windshield defrosting, but that can wait a few months. I'd really like to get this thing rolling before Thanksgiving.
Total curb weight should be around 2500 pounds when finished, giving me plenty of headroom under the 3055 lb. GVWR. The calculator at EVConvert.com suggests that I should be able to go 42 miles between charges (80% discharge) at 40 mph in 3rd gear, and be capable of brief 70 mph bursts on the highway.
Paul V. Pancella
WMU Physics