F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Today's Posts
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Mods causing me to run lean?
proTUNING Freaks
Post Reply
 
Thread Tools Search this Thread
      03-10-2015, 03:34 PM   #1
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Mods causing me to run lean?

I just recently installed a Wagner IC and ER Charge Pipe. I have Mppk and exhaust package for the past year. It seems as if I lost a little HP in pulls and my sport displays show me at 300 hp now at full boost. Dispalys used to read 335 hp before mods this weekend. Also, I have an increase in audible blow off sound from the drivers side. Does this mean my engine is running lean and a loss of HP? Does Mppk tune adjust to mods on its own? Thanks.
Appreciate 0
      03-10-2015, 03:37 PM   #2
Buckeyes
Captain
Buckeyes's Avatar
United_States
353
Rep
939
Posts

Drives: 2013 335i M Sport
Join Date: Jan 2013
Location: Atlanta

iTrader: (2)

I don't think the sports display actually shows horse power or torque, just throttle position correlated to Hp.
Appreciate 0
      03-10-2015, 04:30 PM   #3
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
So my mods might be throwing these display readings off? I guess I will need to find a Dino shop.
Appreciate 0
      03-10-2015, 07:12 PM   #4
Mike_L
Banned
United_States
284
Rep
1,961
Posts

Drives: 2015 335xi GT M-Sport MPPK
Join Date: Jun 2013
Location: New York City

iTrader: (2)

You're not making any more power than you were with just the MPPK. None of those mods will free up any power or increase flow rate. Do some real mods. Intake, downpipe, JB4, etc.
Appreciate 0
      03-10-2015, 07:26 PM   #5
smithf80
Major General
smithf80's Avatar
United_States
2808
Rep
5,316
Posts

Drives: G80 M3 6MT
Join Date: Mar 2014
Location: Long Island, NY

iTrader: (1)

Garage List
2022 G20 330i  [9.00]
2018 F80 M3  [9.75]
Curious as to why you are hearing more blow off.... Maybe your CP is not installed correctly and has a small boost leak...

Because a CP and IC should not increase blow off because they are not making the car make any more boost or anything.
__________________
Appreciate 0
      03-10-2015, 07:40 PM   #6
Mike_L
Banned
United_States
284
Rep
1,961
Posts

Drives: 2015 335xi GT M-Sport MPPK
Join Date: Jun 2013
Location: New York City

iTrader: (2)

Quote:
Originally Posted by smithf32 View Post
Curious as to why you are hearing more blow off.... Maybe your CP is not installed correctly and has a small boost leak...

Because a CP and IC should not increase blow off because they are not making the car make any more boost or anything.
Especially on the drivers side, because the turbo and wastegate are on the passengers side.
Appreciate 0
      03-10-2015, 08:43 PM   #7
smithf80
Major General
smithf80's Avatar
United_States
2808
Rep
5,316
Posts

Drives: G80 M3 6MT
Join Date: Mar 2014
Location: Long Island, NY

iTrader: (1)

Garage List
2022 G20 330i  [9.00]
2018 F80 M3  [9.75]
Quote:
Originally Posted by Mike_L View Post
Especially on the drivers side, because the turbo and wastegate are on the passengers side.
Yup, I'm going with improperly installed CP or defective CP
__________________
Appreciate 0
      03-11-2015, 11:35 AM   #8
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
24174
Rep
190,750
Posts


Drives: 07-335/12-328/18-M4/21-M4CP
Join Date: Sep 2013
Location: Las Vegas

iTrader: (23)

Sounds to me that you have a leak .. check the install again
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/

Phone number 702-494-9435
Appreciate 0
      03-11-2015, 02:48 PM   #9
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Thanks for the input. Took my car in to do a smoke test and they are not detecting any leaks throughout the system. The German tune shop said no codes are being thrown but that I may be over boosting or that my PPK may not be accommodating for the increase in air from the IC or CP. They think I just get a more powerful tune.
Appreciate 0
      03-11-2015, 03:24 PM   #10
Mike_L
Banned
United_States
284
Rep
1,961
Posts

Drives: 2015 335xi GT M-Sport MPPK
Join Date: Jun 2013
Location: New York City

iTrader: (2)

Again, there is no increase in air. Unless the turbo is bringing in more air or making more boost, there is no extra flow in the system. An intercooler doesn't increase flow, it just cools the charge. A charge pipe doesn't increase flow, it just deals with the charge thats already in the motor.

Plus, the MPPK can handle extra flow. Theres a guy here with tons of mods on top of his PPK running fine.
Appreciate 0
      03-11-2015, 04:55 PM   #11
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Yeah that is why I am finding his issue so weird. Is it normal to be hearing the much louder pssssssssst sound from the engine compartment through the whole rpm range at wot?
Appreciate 0
      03-11-2015, 05:19 PM   #12
Mike_L
Banned
United_States
284
Rep
1,961
Posts

Drives: 2015 335xi GT M-Sport MPPK
Join Date: Jun 2013
Location: New York City

iTrader: (2)

Quote:
Originally Posted by tdoggatm2002 View Post
Yeah that is why I am finding his issue so weird. Is it normal to be hearing the much louder pssssssssst sound from the engine compartment through the whole rpm range at wot?
So its just constantly blowing off boost? Do you have the pneumatic wastegate or electronic?
Appreciate 0
      03-11-2015, 11:50 PM   #13
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Mechanical waste gate
Appreciate 0
      03-13-2015, 12:55 AM   #14
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Pneumatic waste gate
Appreciate 0
      03-13-2015, 09:55 AM   #15
Mike_L
Banned
United_States
284
Rep
1,961
Posts

Drives: 2015 335xi GT M-Sport MPPK
Join Date: Jun 2013
Location: New York City

iTrader: (2)

Trying to get some info on exactly how it works. Thinking its activated by engine vacuum, which would mean the cause of it blowing off would be a lack of vacuum. Trying to verify, but having a hard time getting info on it.
Appreciate 0
      03-14-2015, 02:50 PM   #16
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
I had read some posts about vacuum leaks and was thinking that may be the case. However, the smoke and pressure test indicated no leaks. Could it be that Vanos issue that some others had where the bolt sheared off in the Vanos system?
Appreciate 0
      03-14-2015, 04:25 PM   #17
rustyminded
Major
rustyminded's Avatar
248
Rep
1,436
Posts

Drives: BMW 328i
Join Date: Nov 2012
Location: C

iTrader: (0)

Why not try do a battery reset, maybe the car is not adapting well
__________________
F30 328i - 8 auto.. JB4-EWG harness, OCC, Injen Intake, AFE Scoop, AFE dp, AA axle-back - H&R springs, H&R Rear SB, Front Strut, F&R BMS spacers..
Appreciate 0
      03-15-2015, 10:00 AM   #18
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Ok thanks I will try the battery ecu reset tonight, 8 hours minimum time correct?
Appreciate 0
      03-15-2015, 10:04 AM   #19
tdoggatm2002
New Member
2
Rep
11
Posts

Drives: 2012 X5M
Join Date: Sep 2013
Location: Newport, RI

iTrader: (0)

Garage List
2013 BMW 335i  [0.00]
Rustyminded, I noticed that you have a afe air scoop as well. Did you notice any additional sounds during 3000 rpm or higher accelerations? Could the load psssssstttttt sound just be the extra air coming into my intake? But, that still wouldn't explain the 30 hp loss on my displays.

Maybe the battery reset will work. Thanks!
Appreciate 0
      04-23-2015, 02:40 AM   #20
Fast400
Major
Fast400's Avatar
Germany
682
Rep
1,123
Posts

Drives: iX M60
Join Date: May 2014
Location: ...

iTrader: (0)

Garage List
2014 BMW  [0.00]
Did you get it fixed?
Appreciate 0
      04-23-2015, 04:15 AM   #21
rustyminded
Major
rustyminded's Avatar
248
Rep
1,436
Posts

Drives: BMW 328i
Join Date: Nov 2012
Location: C

iTrader: (0)

Quote:
Originally Posted by tdoggatm2002 View Post
Rustyminded, I noticed that you have a afe air scoop as well. Did you notice any additional sounds during 3000 rpm or higher accelerations? Could the load psssssstttttt sound just be the extra air coming into my intake? But, that still wouldn't explain the 30 hp loss on my displays.

Maybe the battery reset will work. Thanks!
No at all. just the pedal felt a little beafy on higher speed once i hit throttle the car gains quickly it doesn't increase hp but helps with intake
Appreciate 0
      04-23-2015, 08:26 AM   #22
Earthmaster
Captain
Canada
127
Rep
851
Posts

Drives: 15' M4 Austin Yellow
Join Date: Sep 2014
Location: GTA

iTrader: (3)

Probably just blow off valve sound from from the MPPK air box hole.
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:01 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST