[robj80]

How does a throttle controller work? You plug it in, put it on ECO5, and it does the rest? How does this affect acceleration?

We are drive by wire. So basically it's computer control throttle. Now when you press down on the gas pedal slightly the stock setting will open the throttle plate say 20%. Even though you may only be pressing the gas pedal down 5% of the way. Car manufacturers do this to give the driver the impression that the car is faster then it is. Now on an older car with drive by cable system. When you press down the gas pedal 10% a cable opens the throttle plate 10%. They are exactly the same.

The throttle controller affects the pedal position / throttle plate %. On ECO mode you may press the gas pedal down 50% but it will only open the throttle plate 5%. It's adjustable so a racing setting you can set it that you press the gas pedal down 5% and it opens the throttle plate 50%. It will make the car feel much faster.

This is a generic way of looking at it that hopefully lets you understand what it does. My numbers are just made up and do not actually refer to the throttle controller function.

 

[robj80]

"On ECO mode you may press the gas pedal down 50% but it will only open the throttle plate 5%."

Does this mean that on ECO setting, the car will be a lot slower in terms of acceleration?

No you can still achieve the same speeds it will just require you to press the pedal down further.

Here is more info: http://www.pivotracing.com/files/1995247/uploaded/3-drive_catalog-e.pdf