|Owner's Other EV||1991 Rover Metro|
|Location||Coventry, England United Kingdom map|
|Vehicle||1994 Rover Metro |
Small British car with 1.1 or 1.4 Rover K-series engine.
March 2013: This car has been sold for parts. I believe the parts are going to be used in a roadster, possibly Mazda MX5
|Motor||Advanced DC L91-4003 Series Wound DC|
The motor and adapter plate are from my other Rover Metro which has been retired. This motor is possibly a little undersized, an 8 inch might provide better economy and performance.
|Drivetrain||FWD manual, flywheel and clutch|
|Controller||Cafe Electric Zilla 1KLV|
It's wonderful! I wish I had bought the Hall effect pedal input version though, all that power shows up a crunchy pot box.
Update: It now has the Hall effect Pedal fitted and control of the vehicle is much improved
|Batteries||12 Odyssey PC2150, 12.00 Volt, Lead-Acid, AGM|
These batteries are great, they have very little voltage sag under load.
|System Voltage||144 Volts|
NG3 - 144V
I have added shunt-type battery balancers just to prevent the batteries going too far out of equalization. They consist of 4 paralleled 14V zeners on a heat sink and a flashlight bulb. They equalise the batteries quite well, but only over a long float charge. The heat sinks are cooled by PC fans
|Heater||Currently the Zilla controller coolant is pumped through the heater matrix. Long term an electric water heater connected to the original heater matrix powered by the traction pack.|
|DC/DC Converter|| |
Morven 144-13.8V DC-DC converter. I'll be adding a trickle charger for the accessory battery.
|Instrumentation||Analogue ammeter and voltmeter, LCD meter very similar to the e-meter called e-xpert pro|
|Top Speed||75 MPH (120 KPH)|
At least! It wouldn't be legal to find out the top speed on the road. I guess it's over 90mph. The car accelerates well between 50 and 70mph.
|Acceleration||Very good acceleration, like a kicked mule!|
|Range||25 Miles (40 Kilometers)|
25 real life miles at around 50mph with hills. This is with a Depth of Discharge of 60% registered conservatively by my meter. The car could go quite a lot further if you were willing to push it.
|Watt Hours/Mile||346 Wh/Mile |
This is as driven normally and calculated from the capacity of the pack multiplied by the DoD and then divided by the journey miles. It's relatively low, I think this is because of the low internal resistance of those Odyssey PC2150 VRLA AGM batteries.
|Seating Capacity||4 adults (although I run it without the rear seats for load space)|
|Curb Weight||2,555 Pounds (1,161 Kilograms)|
Weighed 15 Apr 2010
|Tires||Standard on rear, Continental EcoContact EP Low Rolling resistance on front|
|Conversion Time||expecting around 3 months. All told around 8 months.|
|Conversion Cost||Around 6000 GBP|
|Additional Features||A plastic undertray covering the bottom of the engine bay, revcounter.|
|The donor car was bought on e-bay for 100 GBP. It wasn't in great condition and I had to do lots of welding while I was waiting for the Zilla controller.|
Update 27 Aug 08: Nearly finished. The motor is in place and all the electrics are hooked up. Woohoo It runs! Still have to add the charger, DC-DC and instruments. Then comes the MOT safety test.
Update 16 Mar 09: Its finished now and I have parked up my petrol vehicle. I really like this EV, it's small but feisty!
It's a little more finished now than the pictures show, there are battery hold downs and covers in place and the charging socket is in place of the false fog light in the left hand side of the rear bumper.
Update 15 Dec 09: Mopped up a minor problem, the DC-DC blew two of it's MOSFETS on the high voltage side. I replaced them and am back on the road. I'm going to add trickle charging to the accessory battery to reduce the winter loads on the DC-DC a bit.
I changed the potbox potentiometer as well.
Added that trickle charger to the 12V battery.
Update 18 Apr 10: Fitted undertray
28 Aug 10 last week I thought my range was reducing because the battery was flat on arrival on one of my usual routes.
Looks like I'd just let the tyres go a little soft. 7psi makes all the difference. Range restored!
08 Nov 10 Over 5000 miles. No significant problems.
March 2013 The battery pack has started to wear out so I have sold the car for parts. I now have no EV, at least for now!