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My 1st EV, a one off roll your own

Discussion in 'Electric Conversions' started by deckofficer, Feb 10, 2015.

  1. deckofficer

    deckofficer Member

    Joined:
    Nov 26, 2011
    Messages:
    119
    Location:
    Northern & Southern California
    About 15 years ago I decided I wanted to design a little electric scooter that would have the potential to beat a Harley to 40 mph. I can tell you first hand those HD riders are not amused by a electric scooter taking them out.

    Etec motor with a peak hp of 25.7, 48 volt, 400 amp controller and (4) Odyssey PC-680 AGM batteries. Range was only 6.5 miles. I built this before lithium cells but now will probably swap out the lead acid AGMs for a bunch of 18650 cells which should save 50 lbs at the same range.

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    This is my nephew and my dad in the background checking out the little monster. Had this scooter been a rodeo bull, it would have a perfect record, 5 friends/family tried to ride it, and even after a good preflight on the instant torque characteristics of an electric motor, all 5 lost control on take off.

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  2. rjcbox

    rjcbox Member

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    Sep 4, 2013
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    NJ, USA
    oh, you can't tease us like that and not post a video of that little thing blowing away a Harley lol
     
  3. deckofficer

    deckofficer Member

    Joined:
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    119
    Location:
    Northern & Southern California
    I'd love to but at the time it predates GoPro. Love the fact that you have 10.8 kW of solar.

    I do have a GoPro video of the car in my avatar having a 2 second romp from 40 to 80 mph on a uphill on ramp to a freeway on a grade. It is about the only place I can go full throttle for 2 full seconds. Doesn't have as much power as a P85D (427 producing 526 hp) but it weighs 3146 lbs less and instead of 7.14 lbs per hp, it is 3.40 lbs per hp. A real hoot to drive.
     
  4. mnx

    mnx 2013 P85

    Joined:
    May 6, 2009
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    Ancaster, Canada
    Looks like fun! I've often daydreamed about building something like your scooter but I lack the planning and fabrication skills. Wanna sell it?
     
  5. tomas

    tomas Traded in 9 rep bars for M3, used to be somebody!

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    You made my day, that is awesome! I'm selling my ICE scooter (aprilia) because I just don't want any more ICEs around... planned to revert to 100% bicycle in 2 wheel weather... but if you were to publish plans for this I might have a new hobby!!!! We could have an annual rodeo challenge!
     
  6. deckofficer

    deckofficer Member

    Joined:
    Nov 26, 2011
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    119
    Location:
    Northern & Southern California
    Did the rodeo thing with the gas scooter folks, results as you would expect. So the next year they decided to have a 50 mile run on historic Route 66 in Arizona with the thought that would curb my performance. I decided to go for it anyway, even though my 720 whr AGM batteries were only good for 6 1/2 miles, I decided to tow a battery trailer with (6) 8 volt golf cart batteries (remember this is pre-lithium) for an additional 7920 whr, but at a weight penalty of my 105 lb scooter hauling my 245 lb body and 495 lbs of batteries and trailer, total 845 lbs. The Etec is one strong motor.

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