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1973 Porsche 914 electric conversion - $10,500 (hercules, pinole, san pablo, el sob)

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condition: good
cylinders: other
drive: rwd
fuel: electric
odometer: 39998
paint color: black
title status: clean
transmission: manual
type: other
Updated post and pictures 10/25

Price is firm.

Up for sale is a running project, a lovely 1973 Porsche 914 that has been converted to electric power. Low mileage (39,998 miles) and garaged in the Bay Area, it's very tough to find a 914 in this condition with little to no rust, very decent original interior and what looks like shiny original black paint. These cars have been jumping up in value in recent years.

Bolted to the original transaxle (only 40k miles and shifts/clutches perfectly) is a General Electric DC motor from a 1970s Bradley GTE.

Since buying the car as a roller without batteries over a year ago I added two lithium A123 battery modules up front (10kwh total) from Thunderstruck motors in Santa Rosa, which plug into their battery management system, so what is often the biggest headache of such a conversion (the BMS) has been done. Two Thunderstruck battery chargers mounted above the motor can fill the battery from empty in two hours. This drive system has been trouble free and enjoyable to drive. Think "set it and forget it" and not endless tinkering and trouble.

The previous owner converted the car in the 1990s, so the Curtis motor controller and dc/dc converter are from that era, and are of relatively low voltage (max around 108 volts). The 10kwh battery has much larger capacity than the original lead acid pack and much smaller (weighs about 200 pounds). It's currently running at 90 maximum volts, so top speed is about 75 mph, but still plenty of fun low speed torque. It's current range is about 30 miles, depending on how you drive it. I've found it to be plenty to enjoy the car.

If you are looking for a daily driver, I would consider a newer EV instead. They are surprisingly cheap after all the rebates and tax credits available these days. This is the car you keep in the garage for weekend drives and shows.

I've enjoyed working on this car and it's been lovely to drive it around. The suspension and steering feel quite nice, thanks to the Koni yellow shocks, relatively low miles and all new Vredestein tires. The gauge cluster was recently restored and brake master cylinder replaced. I just have another conversion I need to focus on and can't have two in the garage,

It doesn't need a whole lot to be a solid driver. One front strut appears to rattle a bit while driving (might just have a loose collar) and most of the weatherstripping needs to be replaced to keep rain out of the car (who drives these in the rain anyways?). Around $300 worth of rubber seals are included.

I've gotten lots of calls from people interested a Tesla motor conversion or Hyper 9 motor conversion on this car. Most use kits from EV West in San Diego to do that, which are around $25k to $40k last time I checked just for the parts. Adding labor for such a conversion would usually double that cost and mean witing in a years long waitlist. So please keep that in mind.

I can add to the deal a Soliton Jr motor controller that will more than double the power going to the motor with the existing batteries wired in series. The pack can be re-arranged to double the voltage without much trouble, simply turn one module around in its mounts to reverse the polarity and reconnect the bms board plugs at each end (Thunderstruck tells me the BMS wiring is really that simple, though you may want to double check with them). A higher voltage dc-dc converter and higher voltage charger (another Thunderstruck charger could be pre-programmed by them and plug right in) would have to be added.

You could increase the range by adding more A123 battery modules from Thunderstruck for about $1,000 - they may even include a wiring harness to make it plug and play as they did for me but you may have to figure out how to mount them at the rear. Replacing the 200 pounds of battery in the frunk with four Tesla Model S modules (100 max volts around 20kwh and around 200lbs) or three VW ID4 modules (around 144 volts and 21kwh and around 200lbs) would double the range, possibly for as little as a few grand in parts. That also keeps the battery in the front, making it easier to work on.

The bottom line is this is a classic that is far simpler to work on than a modern ev and more fun to drive.

Please be sure you're serious before emailing.

Thanks!



post id: 7747987632

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