Exhaust valves no longer open after I switch from Efficient to Sport Plus engine mode

[backagain]

Originally Posted by gatorfast

For the base tune the valves do not open immediately when in sport/sport+ like they do for the zcp.

Mine is non-ZCP, and it behaves exactly like what hellokitty described.

[9M71]

Originally Posted by gatorfast

Not sure if that's the exact rpm but it def needs to be up there along with other throttle input parameters.

Basically if you are sitting still with a base tune car and go from efficient to sport mode, nothing will happen to the valves. But if you are sitting still with ZCP or CS tune and go from efficient to sport you will immediately hear the valves open even before driving off.

This is not my experience with a non-zcp, manual.

when in Sport/sport+ my valves are always open in first and second gear. in third gear and above, they only open when hitting a certain RPM and % throttle input, but close afterwards to prevent droning.

when you first switch to sport/sport+ from efficient (and in 1st/2nd), you can give a quick blip to the throttle and valves open right away.

maybe things are different with a DCT.

[gatorfast]

Originally Posted by 9M4N71U

This is not my experience with a non-zcp, manual.

when in Sport/sport+ my valves are always open in first and second gear. in third gear and above, they only open when hitting a certain RPM and % throttle input, but close afterwards to prevent droning.

when you first switch to sport/sport+ from efficient (and in 1st/2nd), you can give a quick blip to the throttle and valves open right away.

maybe things are different with a DCT.

My car is a non-ZCP manual as well. Perhaps I am remembering the valve behavior wrong? I have been tuned for a long time but I don't recall the valves opening immediately after changing throttle settings, only when hitting certain rpm/throttle inputs.

[Isj]

Originally Posted by 9M4N71U

This is not my experience with a non-zcp, manual.

when in Sport/sport+ my valves are always open in first and second gear. in third gear and above, they only open when hitting a certain RPM and % throttle input, but close afterwards to prevent droning.

when you first switch to sport/sport+ from efficient (and in 1st/2nd), you can give a quick blip to the throttle and valves open right away.

maybe things are different with a DCT.

same operation with DCT non-zcp.