brushless conversion questions

[mwry13]

I just sold my setup (financial issues) and it was purely a racing setup

4s Neu 30c packs
Neu 1515 1y/f
Mamba Max with the usual mods
BEC set at 7 volts ^_^ fast servos are the #&!*

Car really doesnt matter all that much... i found that kyoshos had a ton of room to play with... it took me a week or so of fidiling to find a CG i liked with battery / esc setup and all as well as the setup i used

8k front diff oil, 50k center, 3k rear