I mounted the motor to an official pinewood derby block over the weekend. It actually worked pretty well with the Erector wheel/axle/transmission setup I put together.
Kind of a busy photo, but you can see the gearing and the wheels. This is the rear end of the car.
I’m currently awaiting the arrival of some voltage regulator chips from Mouser. I had been getting lucky by overrating the SR latch and inverter chips with voltage, but they finally gave out, so I’m going to incorporate the regulator to hold them at the 5 volts they need. When that part arrives, I should be able to do some real testing.