From: "L. Chris Hager" <[email protected]> from Audrey
<I posted more or less this same Q over a year ago, got no useful answers. ?I want to convert a (very) small Brit-made sports car, late 1950s era, called a Berkeley> Over the years Steve ( Clunn) has done a bunch of projects like that..... one of the first ones, when I first met him, was the TANGO, a 3-wheeler, 2 seater....with a 50cc gas engine, ( number 19. on our web page: http://www.greenshedconversions.com/Pages/History.aspx He put 6 Group 24 batteries and a 1275amp 72V controller in it. This was a sporty vehicle and was clocked at 60mph. It did not have a lot of range. 10 or so miles. The car was not extremely aerodynamic, even though it was extremely light. After the project was done, in re-evaluating it, he noted: Poor aerodynamics's and possibly too small a tire for the weight of the vehicle. We had 2.1kwh pack and a 10 mile range, brings it to About 200Wh per mile. Not bad for a car, but for a super lightweight vehicle, we had hoped for more. Everything from this TANGO, went into his 1986 Suzuki Motorcycyle.. also on that Company History page. The Motor cycle does not have a much better performance, but we really dont' have meters to calculate exact performance. MY 1967 Austin, that you can see ME convert on the PROJECT tab of our web page, also got about the same Wh per mile. BUT, a much more enjoyable ride....and it is a little OVER 1,000 lbs. Other conversions on that page, a 2011 Harley, with a CURTIS AC drive, the Sand Rail, with an 11" Warp and a 1 K Zilla and a small GAS GAS Bike for an 11 year old are light weight, but data for these is not available. Mostly because they are always driven for FUN and at MAXIMUM SPEEDS !!!! Steve WAS impressed with the Sand Rail, it a 180V pack and I believe he said , they were cruising along at 40mph using 25amps. ( Not sure how to calculate that into Wh per mile). This summer he also did a GO CART for a customer using a BLDC motor, which was rated at, I believe 10kw and a 72V pack and the peak amp from the batteries, was about 90 amps... ( see the SUMMER OF 2012 tab for this). It has Regen braking AND Reverse !! (side email me for info on these motors)... thats FAST !!.. its on Youtube. http://www.youtube.com/watch?v=cTn5jO0IjgM As for your questions about FORK LIFT MOTORS, steve recently took out a Net Gain 9" that was in his Toyota Pick up, and replaced it with a 75lb Fork Lift Motor,. ( trying to get the price of this vehicle low enough to attract a buyer) . I think it is rated at 6kw, the pickup's performance ( which had 12, 12V batteries) suffered greatly. He said it used 30% more power to go 40mph. And could not go over 50mph. Steve is a big believer in these small neighborhood vehicles. And a little car like what you are talking about would be such an exciting project, for sure. One thing to keep in mind, MY little Austin, with its little 12" tires, does not feel real stable over 50mph, but I LOVE driving it ! and I get lots of "Thumbs Up" !! Audrey (the other half of STEVE CLUNN) _______________________________________________ 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)
