Crt ?

[rchippie]

Originally Posted by MacII

16T sounds very high to me. Back when I was running the steel spur and stock CRT Diffs I was trying to get as small a pinion as I could find. I see an old order from Mike for 10T-13T. I was running the 10 (yikes). Perhaps it was b/c my motor was too hot...I'd likely suggest you start at 13T and go up or down from there...

i will be using a 9XL for the motor. I have a 13t pinion. Be sure to look at the chart above.

Here are the stats with a 13t pinion. They dont look to bad .

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 62
Pinion Tooth Count: 13
Total Voltage: 14.8
Motor KV: 1853
Tire Diameter (inches): 5.5
Tire Ballooning (inches): 0
Motor Current Draw: 60
Motor coil Ω: 0.0092
Spur/Pinion Ratio: 4.77 : 1
Total Ratio: 15.77515 : 1
Tire Circumference (inches): 17.28 inches (438.88mm)
Total Motor Speed: 26401.54 RPM
Vehicle Speed: 27.38 MPH (43.99km/h)
Effective Speed Rate: 1.85mph/V (2.97kmh/V)
Effective KV Value: 1783.89