|
|
|
07-17-2015, 07:33 PM | #1 |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
Low boost / Throttle Closure
I have been having issues for a few weeks now with low boost issue. I am running Stage 1 Aggressive with Cobb V3 on my 2011 BMW 135i with DCT. The logs that I have done are all over the place but all low numbers in the 10 psi range. I am not sure what the issue is yet and I am trying to figure this out. I have thought of a boost leak, but wouldn't the psi be all over the place or would it just be like my graph? I feel like I am running stock to barely above stock. Before I got the car it already had stage 2 BMW performance kit installed.
First pull in 3rd gear: Traction Control was on with Sport Mode off http://datazap.me/u/sparkyphantom/3r...=0&data=4-6-16 Second pull in 3rd gear: Traction Control off with Sport Mode off http://datazap.me/u/sparkyphantom/3r...=0&data=4-6-16 Third pull in 3rd gear: Traction Control off with Sport Mode on http://datazap.me/u/sparkyphantom/3r...=0&data=4-6-16 |
07-17-2015, 07:52 PM | #2 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
07-17-2015, 08:29 PM | #3 |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
|
Appreciate
0
|
07-17-2015, 08:34 PM | #4 |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Sorry i miss typed my first reply, i meant i can't view the last 2 logs
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
Appreciate
0
|
07-17-2015, 08:38 PM | #5 |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
|
Appreciate
0
|
07-20-2015, 10:17 AM | #6 |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
Does anyone know what the issue maybe? I am trying to narrow it down.
|
Appreciate
0
|
07-20-2015, 10:30 AM | #7 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
2- boost is going up to 11 psi and tapering down to 9 at redline. Thats about 3 psi over stock. Dont have the Cobb exact boost target for each stage but i think 3 psi is very close to stage 1 . 3- the second run does not have any throttle closure only the thrid, which could be cause by overboost.
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
07-20-2015, 10:33 AM | #8 | |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
Quote:
|
|
Appreciate
0
|
07-20-2015, 10:38 AM | #9 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
Here is my advice to you. Reset your datalogging parameters do a pull with stock and another one with stage 1 Traction control 100% off + sport mode.
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 Last edited by mike@x-ph.com; 07-20-2015 at 12:37 PM.. |
|
Appreciate
0
|
07-20-2015, 11:01 AM | #10 | |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
Quote:
|
|
Appreciate
0
|
07-20-2015, 12:38 PM | #11 | |
Joint Chiefs of Staff
24172
Rep 190,750
Posts |
Quote:
Dont expect much difference in power (if any)since you already have the PPK until you get catlesss downpipes and switch to stage 2
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
07-20-2015, 06:05 PM | #12 |
Private First Class
25
Rep 121
Posts
Drives: 2011 BMW 335i
Join Date: Oct 2014
Location: United States
|
Okay thank you for your help. Will give that a go. Downpipes will be next on the list.
|
Appreciate
0
|
Post Reply |
Bookmarks |
Tags |
boost leak, cobb, n55, throttle closure |
|
|