On Sun, Jan 20, 2013 at 2:03 AM, damon henry <[email protected]> wrote:
> My Datsun truck weighs in at around 2600 pounds and includes the original > transmission. I am using an ADC 6.7 inch which began life as a forklift > power steering motor. I force air through it to keep it cool, and it has > no problem pushing my little truck around at freeway speeds. I do not know > the differences between an ADC and a Netgain motor but I know that it is > possible for a smaller motor to get the job done on a smaller car. You do > need to be concerned about cooling and you also need the proper gearing to > help the little guy out :) My motor also has 8 beefy brushes to help > deliver extra current. Some 6.7 inch motors, like the one I use on my > motorcycle only have 4 brushes. I think Damon has touched on the more important question. Will a transmission be used? The Berkeley is so light it could easily be made into an EV with direct drive. In fact that's the approach I would take, since the original transmission was probably only strong enough for the torque of the original 2-stroke engine. Depending on the battery pack and controller used, you could easily triple or quadruple that torque. BANG goes your transmission, and where will you get spares? The Corbin Sparrow was around 1500(?) lbs., was direct drive and used an 8" ADC motor, and didn't seem to have any cooling issues. If your total weight is under maybe 1100 lbs. and you gear it for a top speed of 70 mph, I'm thinking you could use a long 7" motor. But I'd pay attention during long low-speed uphills. Chris LeSled is for sale! http://www.evalbum.com/274 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130120/759891a3/attachment.htm> _______________________________________________ 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)
