Lee Hart wrote >> Is the 6.7" series DC motor enough for this heavy of a car? > The L91 in my LeCar is more than adequate to do 70 mph.
You don't actually go 70 in your LeCar, do you ? ;) I also have the L91 in my LeCar, I've maxed out at 65 (once), and with more than 250 amps (at 120v), I get motor stutter. But, perhaps my motor is old/needs new brushes. I've only had it for < 10K miles, but maybe it had been around the block a few times before going into my car. But generally, I've been happy with it in the small vehicle - it's no tire burner, but I generally keep up with traffic. When I upgraded my small LeCar I replaced only the batteries, with lithium and added a BMS (for roughly $8k in all, for a 16 kwh pack). Uphill performance is better and range is up from 35-40 on lead to 50-60 miles on my normal commute (don't normally go much faster than 50, but there is a fair amount of stop and go + hills, and I have no re-gen to get some of that energy back). For a small car, like a Beetle, to get 50-60 miles range with lead, you've got to have 1000 lbs of lead, or MORE. To me that's not worth the weight performance hit, space requirements, hassle to keep watered, worse winter sagging, Puekert effect and short pack life, compared to lithium. Though the BMS is an extra cost, you can get additional cell information that will help you maximize the pack performance and longevity while providing some extra information to help resolve problems, in case they arise. If I had another $5k I'd have replaced the motor and controller and put in the HPEVS AC50. Perhaps in my next build (if it ever happens) or upgrade #2. ----- Dan Gallagher http://www.evalbum.com/3854 -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/e-volks-upgrade-tp4663158p4663173.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
