Mamba Maxx speedo on 4s?

[lincpimp]

It will work on 4s, as will the lvc. You must disable the internal bec, by removing the red wire from the rec plug. YThe use a ubec or receiver pack to power the servos. On 4s the internal bec will overheat.

Be careful when using the 7xl, it can draw alot of power, so gear low to start and check temps frequently. I have a few revos with 7xl and mm combos and they work fine, but are very gearing sensitive. What lipos are you going to use?