Eva, piloting the KillaJoule electric motorcycle with sidecar, ran
270.224 mph at Mike Cook's Shootout event in Bonneville.
The two Buckeye Bullet cars are now the only electric powered vehicles
fast than the KillaJoule. (The Buckeye Bullet 1, and 2.5)
The computer model showed ~270 mph. For the first time ever, practice
agreed with theory. Both Eva and I were both pleasantly surprised. It
doesn't happen very often, for sure.
The A123 Systems 14 Ahr pouch cells are really unbelievable. They have
touting them for some time, and we finally agreed to try them. They are
_really_ stiff. Both Eva and I attribute the remarkable top speed to the
low sag of these cells under load. We made greater than 700 amp (25 C)
looong pulls from the the 2P pack which resulted in less than 10 Celsius
temperature rise. This tells quite a bit of the underlying story.
The rest of the drive system performed flawlessly under the hostlile
salt environment. The Rinehart controllers and EVO motors gave us zero
grief. While the ICE racers surrounding us had small armies for support
teams, the KillaJoule had just five people. We mostly cleaned the salt
off the vehicle, refilled the ice water cooling, recharged the pack, and
repacked the chutes. The ICE racers we amazed at how little we had to do
to cycle the vehicle for the next round.
The bike ran very straight and the handling was perfect. This also was a
pleasant surprise for an asymmetric vehicle. It was as pretty much as
good as it gets for a day at Bonneville salt flats.
Bill & Eva
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