Motor test: I oiled the can end BB (brush end bushing is sealed, it cannot be lubed) and fed 'er 3 volts. Draws .27 amps, and stayed steady, no increase or decrease of amps. That tells me there isn't a lot of (break-in) changes going on.
Smooth, tame, and dead cool. Bumped 'er up to 4V. Still smooth, tame, and cool, no increase/decrease in amps. So I'm thinking a long break-in isn't needed. I let her spin at 4V for 5 mins, then gave a Monty Ohren lighter fluid bath for 10 seconds and stopped. Break in done.
After the fluid dried, I spun the beast up again at 4 V and used my meaty educated fingers to assess the power characteristics. By no means is this scientific, nor is it something you can rely on your motor being the same, or even similar. Here is my impression:
Low horsepower and very high torque. It runs dead cool, even when I almost stalled it. That tells me it can run a big pinion. Billy already said it can run a 15/34 with .730 wheels, and stays cool, with good brakes. I think it can handle more pinion, until we start getting it warm and the brakes become an issue.
Polarity needs to be reversed; in other words, red dot is negative. Switching wires and listening to the difference in rotation, to my sensitive ears, sounds like the timing is almost totally neutral. But I sense it runs a red hair happier with red positive. If I'm correct, the motor is wrong timing for a left hand anglewinder. But the difference is very slight. It's so close to neutral, it will run fine either way.
Now here comes the bad news, Rotorranch, I feel your pain. Now that I look at the parts in place, I see the only way this motor will fit in this chassis in to have it angled way up over this ridge right here which I darkened with a Sharpie:
No gear combination in the world will change the fact the motor has to ride above that ridge. The rules disallow "modifying" the chassis in any way. The mounting bracket on left side isn't the problem. It's the ridge on the right side.
Billy's photos don't show it but the motor is jacked way up on the right side. So, the question for me personally is, do I want to race a class where the motor doesn't fit?
Or maybe there is a secret decoder ring I didn't get? 
I'll take a time out and shuttup. I'm not always right. But if I am right, a simple change of the rules to allow shaving that ridge down may solve the problem.
I have lots of faith in Billy, and whatever he says, I will follow.
all I can say is, it's not your money, your wife, or your life. Nobody gets hurt unless you laugh too hard 
