Crt ?

[BrianG]

Originally Posted by cemetery gates

*EDIT* Brian, actually when I had a dual HV-maxx e-maxx I ran a RRP 65t hardened steel spur with kyosho pinions and had no ill effects at all over many, many runs. But, when I put RRP pinions on (just to change ratio) the pinions lasted maybe 3 runs at most. Weird:confused:

Were the pinion teeth shaped the same? Remember, some have different pressure angles, which can make a HUGE difference in pinion longevity.

Originally Posted by BrianG

Were the pinion teeth shaped the same? Remember, some have different pressure angles, which can make a HUGE difference in pinion longevity.

Yup, shaped the same, standard 32p. Maybe the RRP pinions were aluminum and not steel? IIRC, I thought they were steel, I think traxxas ones are at least...

Bye:018:

[rchippie]

After talking with mike & brian this is what im going with. The motor is a 9XL

post:

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 62
Pinion Tooth Count: 16
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: 3.88 : 1
Total Ratio: 12.81731 : 1
Tire Circumference (inches): 17.28 inches (438.88mm)
Total Motor Speed: 26401.54 RPM
Vehicle Speed: 33.7 MPH (54.14km/h)
Effective Speed Rate: 2.28mph/V (3.66kmh/V)
Effective KV Value: 1783.89