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mistercrash · 12:48 PM

I think the E-Revo tranny I am using throws the data a bit. I have a 58 spur and a 22 pinion on right now. But I was also running lipos that were almost empty and the LVC kicked in after only 7 or 8 minutes of running easy. I only did one top speed run, maybe the voltage was just too low. I'll recharge the batteries and try again before I start playing with gearing. I might have to get other pinions from Mike as the biggest one I have is a 22. Going to nitro Revo spurs with matching pinions might be another option. But I don't think I'll have to go that route.

What springs were you running?

This is what I get from what's in the truck right now so it should've been more than adequate. As you can see, the E-Revo tranny ratio is very different from yours. I also chose the XXL tire option which is larger than what you have on your info. There's also a big difference in roll out from yours.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1.8333333333333333
Other Ratio: 1
Spur Tooth Count: 58
Pinion Tooth Count: 22
Total Voltage: 22.2
Motor KV: 1577
Tire Diameter (inches): 6.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0.008
Spur/Pinion Ratio: 2.64 : 1
Total Ratio: 15.98718 : 1
Tire Circumference (inches): 21.21 inches (538.63 mm)
Rollout: 1.33:1
Total Motor Speed: 35009.4 RPM
Vehicle Speed: 43.97 mph (70.64 km/h)
Effective KV Value: 1577
KT constant: 0.86 oz-in/A

This is what I get if I choose the same size tires as yours. It still shows plenty of top speed.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1.8333333333333333
Other Ratio: 1
Spur Tooth Count: 58
Pinion Tooth Count: 22
Total Voltage: 22.2
Motor KV: 1577
Tire Diameter (inches): 6.6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0.008
Spur/Pinion Ratio: 2.64 : 1
Total Ratio: 15.98718 : 1
Tire Circumference (inches): 20.73 inches (526.66 mm)
Rollout: 1.30:1
Total Motor Speed: 35009.4 RPM
Vehicle Speed: 43 mph (69.07 km/h)
Effective KV Value: 1577
KT constant: 0.86 oz-in/A

	(#119)
mistercrash Guelph, Canada, eh! Offline Posts: 1,083 Join Date: Sep 2007 Location: Guelph, Ontario, Canada	05.14.2010, 12:28 PM I think the E-Revo tranny I am using throws the data a bit. I have a 58 spur and a 22 pinion on right now. But I was also running lipos that were almost empty and the LVC kicked in after only 7 or 8 minutes of running easy. I only did one top speed run, maybe the voltage was just too low. I'll recharge the batteries and try again before I start playing with gearing. I might have to get other pinions from Mike as the biggest one I have is a 22. Going to nitro Revo spurs with matching pinions might be another option. But I don't think I'll have to go that route. What springs were you running? This is what I get from what's in the truck right now so it should've been more than adequate. As you can see, the E-Revo tranny ratio is very different from yours. I also chose the XXL tire option which is larger than what you have on your info. There's also a big difference in roll out from yours. Differential Ratio: 3.3076923076923075 Transmission Ratio: 1.8333333333333333 Other Ratio: 1 Spur Tooth Count: 58 Pinion Tooth Count: 22 Total Voltage: 22.2 Motor KV: 1577 Tire Diameter (inches): 6.75 Tire Ballooning (inches): 0 Motor Current Draw: 0 Motor Coil Resistance: 0.008 Spur/Pinion Ratio: 2.64 : 1 Total Ratio: 15.98718 : 1 Tire Circumference (inches): 21.21 inches (538.63 mm) Rollout: 1.33:1 Total Motor Speed: 35009.4 RPM Vehicle Speed: 43.97 mph (70.64 km/h) Effective KV Value: 1577 KT constant: 0.86 oz-in/A This is what I get if I choose the same size tires as yours. It still shows plenty of top speed. Differential Ratio: 3.3076923076923075 Transmission Ratio: 1.8333333333333333 Other Ratio: 1 Spur Tooth Count: 58 Pinion Tooth Count: 22 Total Voltage: 22.2 Motor KV: 1577 Tire Diameter (inches): 6.6 Tire Ballooning (inches): 0 Motor Current Draw: 0 Motor Coil Resistance: 0.008 Spur/Pinion Ratio: 2.64 : 1 Total Ratio: 15.98718 : 1 Tire Circumference (inches): 20.73 inches (526.66 mm) Rollout: 1.30:1 Total Motor Speed: 35009.4 RPM Vehicle Speed: 43 mph (69.07 km/h) Effective KV Value: 1577 KT constant: 0.86 oz-in/A No brain, no headaches. Last edited by mistercrash; 05.14.2010 at 12:48 PM.