if you have plenty of room and you want to do some high speed drifting use the HPI stage D nitro drift tires. #34501. if you want to do low speed drifting try the ABS drift tires, they don't offer much traction but do better for low speed driftiing or tight spaces, I just recieved a set of the nitro drift tires and its going to take a while to get used to how they handle, I am still new to the whole drifting thing so please take my suggestions with a grain of salt. lol
it is also helpful to lock ur front and rear diffs for drifting, use silly putty it works great!
hope this helps!