what mamba monster model would work good in the rc8te or recommend another motor. Thanks.

mamba monster 2200kv esc combo

What else what i need to buy for this motor? Also what lipo battery do you recommend?

Mod 1 pinions ranging between 14T and 16T, 4s ~5000mah Lipo (25c or 30c).

2200kv. pinion(what he said). 4s and a 6s set. 4s for racing if your track wont allow 6s. however 6s will give you the extra power to take off of the jumps. a guy at my track had the same setup with 4s and he just barley cleared every jump. my revo with 6s could have jumped over the entire track. basically what im getting at is if your a good driver get the 6s. if your not then the 6s can be uncontrollable. you can tune it down on the castle link if you want anyway.

gearing choice would also make a difference