You need to gun it more, more wheel speed= more drifting. If your not running pvc tires it will be alot more difficult. Save yourself the learning curve and get some plastic wheels or tape them up to try it out. Drifting is ALOT easier done with a slick compound tire.
ps: GUN IT MORE! You can steer when gunning it, trust me.
Here is a short video of a 1/12 scale rs4 I had a few months ago, it was fun for inside but I like my micro better.
http://youtube.com/watch?v=CKk1oIPInYQ
If you listen you'll just hear nothing but gas, I very rarely use brakes.