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I took the motor out and drilled two more holes at 5 degrees advance. Hard to say if there has been an improvement, but there are a couple of interesting data points -
Over the past 56 miles I have been testing accel times and in general driving faster than normal. Even with the 'non optimal' driving, wh/mile is at 243. This is about the wh/mile I get by trying to be efficient.
During a longer than normal drive today (16 miles) the top non field-weakened speed crept up to 34+ MPH. The normal max is 32 on that stretch of road. And that was after about 11 of the total 16 miles, so the batteries were slightly tired.
Acceleration time 0-25 now ranges from 6.0 to 6.6 seconds. Normally, it would be 7.0.
Other than the weather being somewhat warmer these days the only change I am aware of is the 5 degree timing advance. I'll keep it this way for a while to see how it works out. Perhaps 10 degrees was too much, and zero is OK for the stock motor at its rated 36v, with five being a better fit for 48v...
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