I think i posted this somewhere a LONG time ago, back when i was racing veloca-raptors and such... but i was subscribed to the thread on my350z.com where we found this out, and someone revived it. So i thought i would share again.
THIS MAKES A HUGE DIFFERENCE! (not just for drifting/whatever)
I am way too tired to go into it... but when you turn off the VDC "vehicle dynamic control" or "vehicle displacement control" as a crackhead bmw owner told me, hans, cole, andre, etc... you are only RAISING the LIMITS of when it corrects your driving. To disable it completely you used to have to pull the 50 amp fuse for this, but then you loose ABS also.
Here is the workaround. Install a switch between the power from the vdc/tcs/abs computer to the Yaw G sensors... 12v line
That will throw the SLIP and VDC OFF lights to allow you to light up your tires, etc.
You can throw the switch while driving and turn it off (simulates a sensor failure)... BUT to turn it back on, you must restart the engine.
Lorring this is very similar to that thing i was telling you about when i would fry up my brakes... the system would shut it all off, just like a yaw sensor failure.
I am attatching the diagrams to show you where and what to cut....
Later
"happy racing"
-Eric