Ok, I'm too lazy to take screen shots, but today was a perfect day to test things out on a normal med. range commute for me!
I went to church in the morning, and back, which is pretty flat no major climbs very light usage to keep things up to speed, and racked up about 3 miles.
Then I decided since the weather is going to be pretty nasty the rest of the week, I better take advantage of it, and went to REI in portland, so I added another 39 miles to the clock.
I was again pleasantly surprised, the motor has quieted down considerably (is there a break-in period for a motor?) and since I'm not going to the ultra high-speed RPM's on the road as in no-load testing, it's virtually the same amount of noise as my 9C which is next to nothing.
Here are the stats in total for today's trip!
Total Miles: 42
Average Speed: 13 MPH
Watts Per Mile: 8.7
One other thing to note, I stepped it up once again today, using the power to get up to 20 MPH on the flats, and 15 MPH on the more hilly sections, and maintained that speed with moderate pedaling, and then maintaining said speed with minimal power, usually around 5 AMPS draw or less on the flat, closer to 10 AMPS on the minor hills, and no more than 15 - 20 AMPS constant on the steep hills, and only for short bursts (1/4 or 1/2 mile at a time) while constantly monitoring the temp of both the controller & motor with my hand, and only on the steepest of parts of the 2 mile long hill (10% approx.) here in Oregon City did I have to forgo the use of the motor for the last 2-3 blocks since my gearing is at 15 MPH minimum gearing, and I need it geared for more like 7 MPH.
The good news is that with gearing even as tall as it is, I am able to take on 5% hills all day long at about 7 - 8 MPH with out a complaint from controller or motor, and just getting the motor warm, not really hot.
The motor did get hot on some of the short bursts above 6%, but would quickly cool back down once I backed off the speed a bit, and lowered the amp draw considerably.
This shows great promise, and since this motor is rating to use between 24 - 60V, I first optimize gearing for the current 12S 45V pack, and if it doesn't give me as much torque as I like, I will try 20S with the same pack and adjusted gearing for the higher RPM.
As much strength as I am seeing now, I suspect that 12S will be plenty, but If I can get more torque for the same watts at 74V, why not!