[matharu90]

Hello friends. Need some advise here.

I have been on stage 2 FBO except intercooler.
N55 2013 335i RWD

Recently I have been losing some power under WOT between shifts. It's not right after gear shift. For eg. if I shift at 3k rpm, I would have 100% power up until 4K rpm and then about only 60-70% power until 5k rpm and then back at full 100% power again.

No engine codes.

What could possibly be wrong ?

https://datazap.me/u/matharu90/stage...&data=7-10

https://datazap.me/u/matharu90/stage...&data=7-10

[13blk335ix]

i have the same issue and i got the xdi 35 hpfp it helped greatly but it still occurs sometimes just not as violently i think its my lpfp

[matharu90]

Originally Posted by 13blk335ix

i have the same issue and i got the xdi 35 hpfp it helped greatly but it still occurs sometimes just not as violently i think its my lpfp

That seems like a very expensive fix !! Lol


But appreciate your input.
Thank you

[mlev]

You need an aftermarket intercooler /w stage 2. IAT is high.

[matharu90]

Originally Posted by mlev

You need an aftermarket intercooler /w stage 2. IAT is high.

Are you saying that in general or are you referring to that it could be a potential cause of the problem that I'm having ?

Thanks

[TSA8151]

Originally Posted by matharu90

Are you saying that in general or are you referring to that it could be a potential cause of the problem that I'm having ?

Thanks

Your IATs are hitting 150. Thats crazy high, and your ecu is pulling a lot of timing.

[harkes]

Originally Posted by matharu90

Are you saying that in general or are you referring to that it could be a potential cause of the problem that I'm having ?

Thanks

No, high IAT is not the route cause. You will loose power because of this but not only between 4 and 5000.

[lens]

Originally Posted by matharu90

Hello friends. Need some advise here.

I have been on stage 2 FBO except intercooler.
N55 2013 335i RWD

Recently I have been losing some power under WOT between shifts. It's not right after gear shift. For eg. if I shift at 3k rpm, I would have 100% power up until 4K rpm and then about only 60-70% power until 5k rpm and then back at full 100% power again.

No engine codes.

What could possibly be wrong ?

https://datazap.me/u/matharu90/stage...og=0&data=7-10

https://datazap.me/u/matharu90/stage...og=0&data=7-10

From what I can see on the log, you're overboosting and pulling a ridiculous amount of timing, I would not run stage 2 without a FMIC upgrade as it makes your car slower than stage 1 or even stock depending on how high IAT are and how much timing is pulled. I think the root cause of your power loss might be both the overboosting and the IATs, the overboost shoots up, causing throttle closure, then IAT skyrockets and DME sees both overboost and high IAT and pulls timing.

[McLaren720s]

I would also send the log to PTF to review but I think overboosting and high IATs might be the problem. I am curious as to why is it's going over the boost target like that...

[matharu90]

Originally Posted by chaungo

From what I can see on the log, you're overboosting and pulling a ridiculous amount of timing, I would not run stage 2 without a FMIC upgrade as it makes your car slower than stage 1 or even stock depending on how high IAT are and how much timing is pulled. I think the root cause of your power loss might be both the overboosting and the IATs, the overboost shoots up, causing throttle closure, then IAT skyrockets and DME sees both overboost and high IAT and pulls timing.

I will step back to stage 1 tune I guess. Up until I get an intercooler.