Yeah, need to know what class.
I'm going to assume some sort of spec TC. You will need a good speed control/motor combo for spec racing. I would recommend the Tekin RS Pro with whatever Tekin motor your track runs, usually 17.5 or 13.5.
Batteries would be any of the good hardcase 2s Lipos. Say 4800mah or more with 40c or more. I like SMC but there are other good ones out there as well.
Of course, If you are planning to run 1/12th or WGT, that's a whole different story.
Sean. Certified speed crazed mowron.
Team Shepherd USA