Thank you guys! This really isn't the most converted truck around even though the process is quite easy. Very easy actually if you keep the original a-arms & suspension.
Forgot to mention that I'm using
Kimbrough servo saver. Tried the Traxxas' E-Maxx saver but it was way too loose.
I must say that I'm surprised by the performance of this cheap 1900kv XL motor, it flips the truck on it's lid with full throttle start even though I have mild settings on Mamba. Temps are more than satisfactory with low timing, after full 4S 4000mAh pack the hottest I've measured was 60°C (140F), esc & lipo were hardly warm - and some of you might know that I'm not the gentle driver...
I know that some people have had bad experiences with this same motor, but I guess the chinese quality control might have something to do with that matter...
Seems to be at it's best with 4S setup, more cells and temps will definetely rise.