ReFuel Races!

5 07 2013

this is a collection of video clips from 3 of the 4 races that we ran.

The ReFuel races, run by SpeedVentures is a chance for anyone with an EV to get on the famed Laguna Seca racetrack for some friendly races.  I was lucky enough to be able to take my bike on the track.  This was my first time on any racetrack, and Laguna Seca is a great track for motorcycles.  I knew when i showed up that i’m a newbie so my skills wouldn’t be very good, and that my motorcycle would possibly be as good as other home built conversions, but not as powerful as any of the current crop of production electric motorcycles.

As it turned out, most of the bikes were production Brammo Empulses, or production Zero S/DS/FX bikes.  There were two other home built motorcycles, both of which were quite a bit faster than mine flat out.  Also, Brammo had their race team out with Eric Bostrom and Shelina Moreda. Needless to say, i was a little worried about being a traffic cone out there.

Thankfully, everyone was great.  All of the other racers (including the pros), were nice and gave each other helping hands.

As expected, I was one of the slowest bikes out there.  I know my skills are newbie by comparison, but i think i could have fared ok against a couple of the other newbies if my bike had more power.

All in all, it was a fantastic day, and I can’t wait to go back.  🙂


Water Cooling!

5 07 2013

So, for a while, i’ve been having overheating issues with my motor. Mainly, the bike + rider are about 680 lbs. The awesome EnerTrac motor is really meant for a smaller load than this. This means that I have to put more current (power) into the motor for everyday driving. More current means more heat, and eventually the motor overheats.

Mark at EnerTrac has been working on a water cooled version of the hub motor. How does one water cool a hub motor you ask? Well, the water flows in and out of the axle, which is where the stator is anyway. Mark also graciously helped me by changing the axle out for a water cooled version, and i worked on installing a water cooling system for a couple of weeks.

This is a video of me just before i turned the water cooling on as Mark had asked me for pictures of the setup so that he could tell me if everything was ok.

We think the radiator is small, so the cooling may not be as great as we need. I’m still riding it with the new system, so i’m not sure. I think he’s right, but it’ll probably take a few more rides to see for sure.