Sunday, October 12, 2008

What's happened so far...

Here's a little catch up on what's happened so far...
  • Bought a 1991 Mazda Miata 5 speed to get the ball rolling.
  • Pulled the engine, gas tank, AC, Mufffler etc...
  • Selected motor: WarP9 from NetGain.
  • Selected battery: D34M from Optima. Should give enough range on a daily charge (34 miles), provide freeway speeds, and their size and weight make installation easier. Mounting 6 batteries where the gas tank was, and 6 in front over the motor. Good weight distribution within the wheels, and I can still use the trunk.
  • Selected Controller-Charger-DCDC Converter system from Belktronix.
  • Used Google's SketchUp to layout, design and document fabricated parts.
  • Fit checked the motor and front frame with the transmission - success.
  • Prepared for final motor installation.
  • Hoisting motor and frame into place.
  • Besides the motor above, you see the 1 inch thick aluminum adapter plate that adapts the motor front mounting to the car's transmision housing. Sticking out in the middle is the coupler which adapts the motors shaft to the transmission's spindle. The frame provides additional support for the motor as well as the mounting surface for the batteries and electronics.
  • Here's the base of the steel coupler. It press fit onto the motor's shaft, and is rotationally locked with two 1/4 inch steel pins that seat into the shaft's keyway. I incorporated a bearing inside the coupler to match the way the transmission previously mounted to the removed engine/clutch.
  • Here it is after attaching the only part of the clutch that was retained.
  • And now, the motor is installed. I've tested the motor various times leading up to now, and tested it one more time with the rear wheels on jacks. Hooked up a 12 volt battery, and verified smooth rotation in a couple of gears.