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Old 03-18-2008, 11:59 AM   #1 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,218

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 73.57 mpg (US)
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ForkenSwift.com mailbag: another potential forklift based Metro?

Received these questions recently...

Quote:
I have been thinking of exactly the same combination you did. I bought a Walker/Stacker w ith a 900# battery pack. Now I am looking for either a Swift or an X90 or a Geo Metro.
If you're planning to use the battery pack, you may need a different vehicle than a Metro or X90, simply because the pack will put you well over the gross vehicle weight limit for the vehicle. A compact pickup, maybe? Some people exceed GVWR, but you have to consider more than just the springs - brakes, tires, handling are all adversely affected.

Quote:
If you had to do it all over again, would you use a Swift again?
Sure. Lightweight, cheap, plentiful, easy to work on. Though I'd also be tempted to do something a little more fun, like a Miata.

Quote:
And where did you source your new electric motor, what are the specs of the motor?
The motor's not new - it's the hydraulic pump motor from the forklift. The specs are 36/48v, other than that it's a mystery motor because there's no tag on it. However, a motor expert has told me that it's quite suitable for use in a small EV. I can confirm that after the fact - it's never more than warm to the touch after a drive.

Quote:
How did you figure out how to match a controller from a go kart to a forklift motor? Is there a formula of sorts?
Not really. All I knew was the controller was rated up to 48v, with a 225A current limit, and that it would drive a series wound DC motor, which is what we've got.

For a lot more examples of motor/controller combinations & conversion specifications, I highly recommend spending time at the EV Album.
Other good resources are the EVDL and DIYElectricCar.com forums.

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Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
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EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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