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Old 11-27-2007, 02:41 PM   #464 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
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10-11-2007, 04:52 Pm

Just got back from an errand run. It's ForkenSwift weather: rainy (ie. not biking weather for me). Man, the car is slow though! Mental note: avoid driving at peak traffic times in future...

Quote:
just limiting the system to 72 volts cuts costs dramatically.
From what I've read, 72v is considered the minimum practical voltage for around town conversions. It would meet your speed requirements just fine (depending on the components you pick).

Quote:
An aside, this guy is claiming 50mph on a 36v metro, on a 6HP (at 48v) Forklift Motor, does that sound likely?
http://cgi.ebay.com/ebaymotors/ws/eB...m=260166974714
Hey, that car looks familiar. I think it was for sale on eBay months ago... I thought someone even posted to this thread, but I can't find the reference.

Anyway, it might get 50 mph, but not under anything you'd consider "normal" circumstances (ie. you'd need a looooooong runway). I've calculated that the Flea needs 7.7 hp just to maintain 50 mph on flat ground in no wind. Obviously it needs much more than that to accelerate to that speed. Sure, an e-motor can deliver above its rated HP for some time, but still.
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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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