I haven't ran mine yet. I'm waiting on the 2 speed kit so I can put together a special outrunner motor setup using the wide ratio gears from the kit.
Nothing against inrunners, I'm just caught up in experimenting with the 12 pole motors.
The reason why I asked if you were going with the 2 speed kit. To get 40mph with one speed is do-able, but also consider the additional torque you will have in 1st gear with the 2 speed. I believe the 2 speed kit will transform the new E maxx tranny into an automatic shifting monster. I can't wait.
I ran some numbers for you using your motor and the stock pinion that came with your truck. Check this out. These are the wide ratio gears from the 2 speed kit.
Here's 1st gear.
Differential Ratio: 2.8461538461538462
Transmission Ratio: 2
Other Ratio: 1
Spur Tooth Count: 68
Pinion Tooth Count: 19
Total Voltage: 14.8
Motor KV: 2084
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.58 : 1
Total Ratio: 20.37247 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 30843.2 RPM
Vehicle Speed: 25.9 MPH (41.6km/h)
Effective Speed Rate: 1.75mph/V (2.81kmh/V)
Effective KV Value: 2084
Here's 2nd gear
Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.16
Other Ratio: 1
Spur Tooth Count: 68
Pinion Tooth Count: 19
Total Voltage: 14.8
Motor KV: 2084
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.58 : 1
Total Ratio: 11.81603 : 1
Tire Circumference (inches): 18.06 inches (458.83mm)
Total Motor Speed: 30843.2 RPM
Vehicle Speed: 44.65 MPH (71.73km/h)
Effective Speed Rate: 3.02mph/V (4.85kmh/V)
Effective KV Value: 2084
In my opinion, this 2 speed setup will accelerate alot faster than the single speed setup geared for 40mph. It's hard to beat gears.
