Quote:
Originally Posted by pinkpanda3310
That's very impressive to look at 
I am a little curious though, why have you chosen to run 5s? With all the weight saving you've done it would still be a rippin' truck and you could use the internal bec on the quark. |
Thanks man... I often just sit and stare at it too in amazement
.... hmm... I choose 5s because I knew that's what the quark could really handle realistically...
Also, I saw a vid on youtube of a 10xl running 5s (can't find it again though) and it was moving quite nicely around the track... I have seen other 5s setups with similar KVs
getting really good results. I'm not sure what kind of performance I would get from 4s.... Maybe I'll try a 12 cell pack to see how it rolls and give you some feedback.
From the speed calculator:
5s with 14 pinion
Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 52
Pinion Tooth Count: 14
Total Voltage: 18.5
Motor KV: 1624
Tire Diameter (inches): 5.65
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 3.71 : 1
Total Ratio: 15.97143 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Rollout: 1.11:1
Total Motor Speed: 30044 RPM
Vehicle Speed: 31.62 mph (50.79 km/h)
Effective KV Value: 1624
KT constant: 0.83 oz-in/A
5s with 16 pinion
Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 52
Pinion Tooth Count: 16
Total Voltage: 18.5
Motor KV: 1624
Tire Diameter (inches): 5.65
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 3.25 : 1
Total Ratio: 13.975 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Rollout: 1.27:1
Total Motor Speed: 30044 RPM
Vehicle Speed: 36.14 mph (58.05 km/h)
Effective KV Value: 1624
KT constant: 0.83 oz-in/A
4s with 14 pinion
Differential Ratio: 4.3
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 52
Pinion Tooth Count: 16
Total Voltage: 14.8
Motor KV: 1624
Tire Diameter (inches): 5.65
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 3.25 : 1
Total Ratio: 13.975 : 1
Tire Circumference (inches): 17.75 inches (450.85 mm)
Rollout: 1.27:1
Total Motor Speed: 24035.2 RPM
Vehicle Speed: 28.91 mph (46.44 km/h) 
(not very impressive)
Effective KV Value: 1624
KT constant: 0.83 oz-in/A
Quote:
Originally Posted by JThiessen
Q- Do your flat head screws sit flush? In some of the pics it looks as though they may not be. It could be an optical illusion - or, I thought maybe those screws have a small
radius on the inside corner that may be riding on your holes and slots (as in the motor mount).
|
Yes they do... the little corner are sitting in the holes and the heads are flush with the surface of the carbon (the holes are just over 3mm).