Bought a used T4. The guy didn't know that much about it and I'm a newb to the whole RC thing. It has the Velineon motor with a mamba max esc. No clue on anything else really. Looks like a few rpm parts. But I would like to start racing and hopefully get competitive. Any info on this truck or upgrades would be appreciated. Oh and what would a good lipo battery be for this combo? Read the whole thread and I think I kind of have an idea but any thoughts would be appreciated!