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Discussion Starter #1 (Edited)
Hello!

I am a geologist from Latvia (Eastern Europe) :) and newbie to EVs and this forum!
Unfortunately in my country EV is still something out of science fiction... But I have been quite close to green technologies for several years and finally decided to give it a try!

I am new to EVs, but read quite a bit of info on internet and also e-books. I also have some mechanical experience with drilling rig & truck repairs. I already made some calculations @ http://www.evconvert.com/tools/evcalc/ and Seth's Leithman's book.

So planned things:
Ford Ka 1999
Range recommended up to 60 miles
Speed up to 60-70 mph
Planned budget for now is about 8000$

Curb weight before conversion ~1800 lbs, w/o ICE parts I expect 1300 lbs hopefully :). After conversion curb weight expected ~ 2500 lbs (yeah, because of lead-acids...)

Power required 15,6kW @ 60 Mph, 22kW @ 70 Mph on flat ground, calculated from aero drag + rolling resistance (there are no hills here)
Now I'am considering DC 144V system, but also interested AC (because of efficiency & regen). I know, forum is full with AC vs DC things, but for me $$$ could be an issue.

So what do you think about such setup:
ADC FB1-4001A, 9.1" 144V DC motor
Curtis 1231C controller
And... unfortunately :D 12 x Trojan T-1275 12V 150 Ah = 18kW batteries at beginning. If I could gather more $, then LiFePO4 ~45 x 3,2V x 160Ah = ~23 kW.

Or better try to aim @ high voltage & lower amps & AC system?
Would Trojans bring really these 18kW to motor? I am watching that lead acids are quite critisised @ forum!
Maybe there is someone from Eastern Europe to show his vehicle and share some experience? Also parts getting could be a problem. I was shocked when I found that Impulse9 costs around 4000$ @ Sweden!!!
 

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Discussion Starter #3
I've always thought eastern Europe was a hive of interesting niche technologies...?
Well, there are some scientific work in various fields, but
and I am struggling to find any EV here. I found out that at least one conversion some time a go there was made on car ZAZ :) , but I cannot locate it anymore!
 

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Discussion Starter #4 (Edited)
I am starting to consider LiFePO4 pack, and maybe to aim for higher voltage AC system.
320V battery pack, consisting of 100 x 3,2V TS 60 Ah gives 19,2 kW.
Price is 3x times 144V lead-acid pack price, however, I hope cycle life & efficiency will pay. Also winter is pretty chilly (up to -30 C) here.

Maybe you have some recomendations about AC systems? Inverter, controller, motor? For ~20 kW continuous power for small car (like Ford Ka)?
 
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