finished upgrades

[mark graham]

so i finished my upgrades on my amp and it flies.Question which would be a better motor a 3900 kv or a 4370 kv

 

[daprib]

3900 little more tq than the 4370... and the 4370 slightly more rpm. In the racing world a 3900 is close to a 10t motor and the 4370 is like a 8.5-9t motor, lower turns higher speed.

 

[Music411]

I've got the castle sct 3800kv.. if I remember correctly and it's got loads of tourque.. top speed around 50ish kmh/30mph with a 25 t pinion.