Postby partsmaster » August 11th, 2011, 5:51 am
This is a Vacuum Tank
What the Vacuum Tank does is enlarge the size of the Intake Manifold. By doing this, pressure inside the Manifold will increase (vacuum decrease) on the same degree of opening of the throttle body. With the change in pressure reading, the parameter in the Shift Pattern Map will be breach earlier, making the TCU upshifting or downshift earlier. This will give the driver 'early' power and torque.
thinking of selling the system because i does take it easy now with this car.