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lincpimp
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03.31.2009, 11:52 AM

Ok, 5s may be a bit too much... I would need to go to an 11t pinion, and I do not think it will fit.. Or go up on the spur size, but that may cause fit issues as well.

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 11
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 4.18 : 1
Total Ratio: 17.10744 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 40700 RPM
Vehicle Speed: 40.7 mph (65.37 km/h)
Effective KV Value: 2200

4s with a 14t pinion looks just right to me:

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 14
Total Voltage: 14.8
Motor KV: 2200
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.29 : 1
Total Ratio: 13.44156 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 32560 RPM
Vehicle Speed: 41.44 mph (66.56 km/h)
Effective KV Value: 2200

Or maybe I should scrap the 2200 motor idea and just stick with my c50 10xl... That motor is 1624 kv, so on 6s with a 12t pinion (that should fit...):

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 12
Total Voltage: 22.2
Motor KV: 1624
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.83 : 1
Total Ratio: 15.68182 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 36052.8 RPM
Vehicle Speed: 39.33 mph (63.17 km/h)
Effective KV Value: 1624

Ideas?
   
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azjc
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03.31.2009, 12:04 PM

Quote:
Originally Posted by lincpimp View Post
Ok, 5s may be a bit too much... I would need to go to an 11t pinion, and I do not think it will fit.. Or go up on the spur size, but that may cause fit issues as well.

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 11
Total Voltage: 18.5
Motor KV: 2200
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 4.18 : 1
Total Ratio: 17.10744 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 40700 RPM
Vehicle Speed: 40.7 mph (65.37 km/h)
Effective KV Value: 2200

4s with a 14t pinion looks just right to me:

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 14
Total Voltage: 14.8
Motor KV: 2200
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.29 : 1
Total Ratio: 13.44156 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 32560 RPM
Vehicle Speed: 41.44 mph (66.56 km/h)
Effective KV Value: 2200

Or maybe I should scrap the 2200 motor idea and just stick with my c50 10xl... That motor is 1624 kv, so on 6s with a 12t pinion (that should fit...):

Differential Ratio: 4.090909090909091
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 12
Total Voltage: 22.2
Motor KV: 1624
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.83 : 1
Total Ratio: 15.68182 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 36052.8 RPM
Vehicle Speed: 39.33 mph (63.17 km/h)
Effective KV Value: 1624

Ideas?
you could try 5s with the 10xl motor
   
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lincpimp
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03.31.2009, 12:21 PM

Quote:
Originally Posted by azjc View Post
you could try 5s with the 10xl motor
I am thinking about this, although I do not really have a big enough 5s pack. All I have in 5s is a polyrc 3700 25c pack, so good for around 92amps cont. That is fine for the slayer with the c50 15l, but not enough for something with big tires like the muggy...
   
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