ARC R10W
 

Any recommendations on which esc and motor to use in arc r10w??
Serpent 747e works best with 1:8 esc/motor and 3s lipo. Same on arc or should i use 1:10 esc/motor and 2s?
I mostly run Serpent eryx with orca vxx and orca 4,5t.
Will i gain any speed/better laptimes with arc r10w?? Or is it just a waist of money??

Depends on the class rules and what you are trying to achieve.
Locally the class is referred to as "outlaw" the rules are foam tires, 2s battery and 540 size motor, with a lola style body.

Some people run a 1/8th size esc for heat handling capabilities, but they lose top speed as there is no turbo/boost.

The R10W kit (or conversion) will just allow you to run to the full 200mm width. But there are plenty of people running a regular 190mm TC, just running a narrower track width.