There are threads which discuss this subject. It can be done, but the problem is that they SE's even at full throttle have about a 56% duty cycle (correct me if I'm wrong), so the current to the motor is going to be limited. It also has a voltage regulator to keep you from stepping up the voltage to compensate. It also takes a bit of work to get the steering servo hooked up.

I pondered this for quite a while but never gave it a shot. People have had more success with iwaver boards if you can find them anywhere.