Motor - esc - battery wiring ? ( need help from profesional )
 

hey guys im using this wiring and connectors on my 3s , 4s traxxas 1/10 slash :

motor = 4mm bullet connectors
esc = 4mm bullet connectors , 13awg wires on deans plug
battery = 12awg wires on deans plug

if I change all this for 10awg wires all around and 6.5mm bullet connectors do I will have a noticeable difference in power/punch or it dont value the hassle to change all this ?

Only thing I would do would be to swap the 4mm plugs for the castle 5.5mm plugs. I have had issues with the 4mm plugs in the past. I doubt it will make any performance difference, but may help with startup smoothness. Deans are fine, I have pushed them past 150amps without any issue.

no gain.....

ok cool then I wont go with the hassle of desolder and resolder all this...

it is more used for 5s to 6s applications right ?

Only if you are pulling a lot more amps. High voltage will be less affected by a bit of resistance than low voltage, if your total power usage stays the same.
The size of wire you need is more related to your amp draw than voltage, and I doubt you will be able to pull enough current in a slash to really worry about bigger wires. I say leave it.