Actually Joey it is my first extensive car build. I have a good amount of general technical knowledge and and experience (I own a small contract manufacturing and prototype company), but as far as cars go, my experience stops with bolt on parts for my ICE cars. I have done quite a few high wattage stereo and subwoofer installs in my cars over the years but that is child's play compared to this. The only other experience that might help me out is that I have flown R/C airplanes since I was a kid and have used LiPo's for the last 3 or so years. That also led me to dabble in building some submersible HID flashlights used for scuba diving, but it both cases nothing over 12 volt nominal and a couple amp hours.I just subscribed to your blog. Great project. Looks like this isn't your first project with a car. Can't wait to see how your gear ratio selection turns out.
That's a beautiful piece, what's the weight difference?
I'm using a 44S3P pack right now which is a bit low on voltage for the 11HV.I'm actually not sure. We gave Advan the original parts to make molds from since they have never done anything carbon for the 944 before. I should have weighed them before sending off the originals. I will find a way to weight the new carbon parts, but I'm not sure if we are actually going to get the originals back. Although it's my car one of my good friends had a contact at Advan and worked out the deal. The parts were given to us gratis as they are prototypes and in return we agreed to do some promotional photo shoots when this car is finished.
RWaudio, what are the specs of your traction pack for the drive with your wife? Amp draw?
Now that I have had a chance to physically get my hands on the A123's I'm fairly impressed with the robustness of the tabs. I'll be spending the weekend thinking and tinkering intently on my cell connection and packaging method.
Make sure you check the temperature in the clamping area to make sure you have enough clamping force to make a good connection.Finished the first of two cell testing stations today.
Tomorrow I will finish assembly on the second test board and pull together some lead acid batteries so that I can use regenerative charging for a 2C charge/discharge.