Say you go to a track where they're handing out either 19T or 27T motors. Say you've got a dyno to test all your changes. What are some things you can do to make your motor faster than the other guy's?
I know aligning the brush hoods and breaking in the brushes work. Is there a brush hood alignment tool? I'm sure there is...
Is there an advantage to say getting a brush that has a half face and turning one brush upside down so each brush touches only "its" piece of the comm?
What kinds of brushes, springs, shims, oil, etc. do you use to make your car the fastest?