JB4 Map 1 vs Map 2 (with downpipes) question

[E92LNGCGY]

I had catless dp installed yesterday and changed to map 2. However I am not really feeling (according to butt dyno) the extra power that comes with the dp and upgrade to map 2. I double checked to ensure I am using map 2.

For all the users out there do you feel a big difference after dp install and map 2?

It used to be that (on map 1) at around 3500 rpm I can feel the turbo surge of power but now it is gone. Is this normal?

[335iFFM]

DPs aren't needed. Not even for Map7
You'll need them when you switch to bigger turbos.
They add a good amount of power but linear. That's the reason it doesn't feel that extreme to you.

Infos about this topic can be found @n54tech

[Mike@N54Tuning.com]

Originally Posted by E92LNGCGY

I had catless dp installed yesterday and changed to map 2. However I am not really feeling (according to butt dyno) the extra power that comes with the dp and upgrade to map 2. I double checked to ensure I am using map 2.

For all the users out there do you feel a big difference after dp install and map 2?

It used to be that (on map 1) at around 3500 rpm I can feel the turbo surge of power but now it is gone. Is this normal?

Thats surprising as the gains alone from switching over to map2 from map1 should be noticeable.

Butt dynos are inherently not accurate

Mike

[E92LNGCGY]

Originally Posted by Mike@N54Tuning.com

Thats surprising as the gains alone from switching over to map2 from map1 should be noticeable.

Butt dynos are inherently not accurate

Mike

Does it sound like something is not right? I hooked up the lap top and it does show map 2. I didn't install JB4 myself. How can I check to ensure things are connected?

If it wasn't connected properly I wouldn't be able to hook up a lap top and change to map 2 correct? Also the in car map changing doesn't work. Any idea?

On a side note I do feel the car revs faster because it is catless but just doesn't have that surge like on map 1 (at around 3500 rpm)

[mike@x-ph.com]

Post logs with map 1 vs map 2 so we can compare whether car is delivering more power

[Mike@N54Tuning.com]

Originally Posted by E92LNGCGY

Does it sound like something is not right? I hooked up the lap top and it does show map 2. I didn't install JB4 myself. How can I check to ensure things are connected?

If it wasn't connected properly I wouldn't be able to hook up a lap top and change to map 2 correct? Also the in car map changing doesn't work. Any idea?

On a side note I do feel the car revs faster because it is catless but just doesn't have that surge like on map 1 (at around 3500 rpm)

Run some logs. Probably the simplest way to see whats going on so that we can see the boost targets to ensure all is well. Do both map1 and map2 from 2K to 6K pull.

Mike