http://auto.howstuffworks.com/auto-racing/motorsports/drifting4.htm
http://auto.howstuffworks.com/auto-racing/motorsports/drifting4.htm

Weight transfer


        Weight transfer also plays a big role in drifting, it leads to a bigger shift in momentum (inertia drift).  Before the turn the driver turns the wheels to the opposite direction to transfer weight to the inside wheels then back towards the center of the turn to move the weight back to the outside wheels.  This creates a bigger force of momentum (P=MV) which will help overcome the static coefficient of friction.  When you turn, your vehicle has a force called inertia trying to resist the the change of direction. The key to the inertia drift is to transfer that inertia to the rear wheels to make it easier to lose friction.  Drivers also use braking and throttle techniques to transfer more weight to the front or rear wheels depending on what the driver is trying to accomplish.  When the inertia is added to the power of the motor and the loss of weight on the rear tires, the static coefficient of friction becomes very small and easy to overcome.  You have to be careful using the inertia drift because you slow down during the process. In order for you to stay in a constant drift, speed is also needed. So it is best to leave this to the professional and not try this on your own.


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