F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Are BOV bad for n20/n26 motors?
Post Reply
 
Thread Tools Search this Thread
      07-17-2018, 04:37 PM   #1
00e46sedan
Captain
00e46sedan's Avatar
United_States
45
Rep
623
Posts

Drives: 2013 BMW F30 328i
Join Date: Mar 2014
Location: Colton

iTrader: (4)

Are BOV bad for n20/n26 motors?

How's it going forum I was looking into getting a BOV from CT works but was told from a f30 328i owner that their bad for our cars?Especially the ebay ones? Is this due to air pressure or can someone chime in?
Appreciate 0
      07-17-2018, 05:05 PM   #2
jmg
Major General
jmg's Avatar
United_States
7581
Rep
8,876
Posts

Drives: F80 M3 CS, I01 i3 REx LCI
Join Date: Mar 2013
Location: Orange County, CA

iTrader: (0)

Garage List
Thats a no-go. Its a closed air metered system.

__________________
2018 F80 ///M3 CS - Lime Rock Grey Metallic
2019 I01 i3 BEV - Giga World
Previous: F80 M3 | I01 i3 Rex LCI | I01 i3 REx | F30 340i M Sport ZTR | F30 328i Sport | Audi B7 S4 25Quattro #33 of 250 | E21 320i

Appreciate 0
      07-17-2018, 07:17 PM   #3
TylerMcCraw
Second Lieutenant
TylerMcCraw's Avatar
United_States
136
Rep
231
Posts

Drives: 2013 BMW F30
Join Date: Jan 2015
Location: Charlotte NC

iTrader: (0)

Damn, Thats good to know because I wanted one aswell.
__________________
2013 Jet Black Sport Line 328i: H&R Springs, 12 & 18mm Spacers, 335i Exhaust conversion.
Appreciate 0
      07-17-2018, 07:18 PM   #4
Sea-Tac
Major
Sea-Tac's Avatar
United_States
1380
Rep
1,492
Posts

Drives: 2108 X3 xDrive30i
Join Date: Apr 2018
Location: Bellevue, Wa

iTrader: (0)

Garage List
Quote:
Originally Posted by jmg View Post
Thats a no-go. Its a closed air metered system.

I agree...not good.
Appreciate 0
      07-18-2018, 01:56 AM   #5
00e46sedan
Captain
00e46sedan's Avatar
United_States
45
Rep
623
Posts

Drives: 2013 BMW F30 328i
Join Date: Mar 2014
Location: Colton

iTrader: (4)

Wow that's a bummer thank you for the info everyone that helps a lot .
Appreciate 0
      07-18-2018, 01:57 AM   #6
00e46sedan
Captain
00e46sedan's Avatar
United_States
45
Rep
623
Posts

Drives: 2013 BMW F30 328i
Join Date: Mar 2014
Location: Colton

iTrader: (4)

So to just come close to the BOV sound it'll have to be like a CAI?
Appreciate 0
      07-18-2018, 03:20 AM   #7
jmg
Major General
jmg's Avatar
United_States
7581
Rep
8,876
Posts

Drives: F80 M3 CS, I01 i3 REx LCI
Join Date: Mar 2013
Location: Orange County, CA

iTrader: (0)

Garage List
Quote:
Originally Posted by 00e46sedan View Post
So to just come close to the BOV sound it'll have to be like a CAI?
An aftermarket intake might increase the air sucking sound, but it won't be the same as the distinctive psss as a BOV. Everyone knows that these cars are a closed system and use diverted valves so you will most likely just induce eye rolls rather than accolades. Look
into an exhaust if you really want an aural improvement from your car.
__________________
2018 F80 ///M3 CS - Lime Rock Grey Metallic
2019 I01 i3 BEV - Giga World
Previous: F80 M3 | I01 i3 Rex LCI | I01 i3 REx | F30 340i M Sport ZTR | F30 328i Sport | Audi B7 S4 25Quattro #33 of 250 | E21 320i

Appreciate 0
      07-18-2018, 05:18 AM   #8
HFW003
Colonel
HFW003's Avatar
Australia
2075
Rep
2,714
Posts

Drives: MY19 LBB M2 Comp
Join Date: Apr 2013
Location: Newcastle, Australia

iTrader: (0)

Maybe you could trade in for a Honda, then the BOV would work.



Appreciate 0
      07-18-2018, 08:35 AM   #9
s3ri3s1
Second Lieutenant
s3ri3s1's Avatar
159
Rep
214
Posts

Drives: alpine white 328
Join Date: Jul 2018
Location: Nashville

iTrader: (1)

The reason the BOV doesn't work is due to the computer thinking the air is being recycled into the car, vs being vented to the atmosphere (what a BOV does). It will cause your car to run rich as it will have more fuel than air.
Appreciate 0
      07-18-2018, 09:46 AM   #10
00e46sedan
Captain
00e46sedan's Avatar
United_States
45
Rep
623
Posts

Drives: 2013 BMW F30 328i
Join Date: Mar 2014
Location: Colton

iTrader: (4)

Quote:
Originally Posted by jmg View Post
An aftermarket intake might increase the air sucking sound, but it won't be the same as the distinctive psss as a BOV. Everyone knows that these cars are a closed system and use diverted valves so you will most likely just induce eye rolls rather than accolades. Look
into an exhaust if you really want an aural improvement from your car.
Thanks. I just have a muffler and resonator delete.

Quote:
Originally Posted by s3ri3s1 View Post
The reason the BOV doesn't work is due to the computer thinking the air is being recycled into the car, vs being vented to the atmosphere (what a BOV does). It will cause your car to run rich as it will have more fuel than air.
Appreciate the feedback yeah it's a no-go for me.
Appreciate 0
      07-18-2018, 10:57 AM   #11
BEAR-AvHistory
2018 440M-Sport MPPSK/THP
BEAR-AvHistory's Avatar
687
Rep
3,556
Posts

Drives: 2018 440M-Sport MPPSK/THP
Join Date: Jun 2011
Location: Raleigh, NC

iTrader: (0)

Garage List
2018 BMW 440  [0.00]
2013 BMW 135is  [0.00]
IMHO a good exhaust note is better than an engine that sounds like it has asthma.
__________________
Kevin

2018 440M-Sport MPPSK/THP - 2017 CX-5 - 2016 Genesis R-Spec Coupe 6MT - 2013 135is Cab 6MT/JB4 - 2009 V-Star - 2009 Expedition 4X4 - 1998 Ranger 4X4 5MT - 1965 Cobra MK-IV 5MT BUILD LOG
Appreciate 1
jmg7581.00

      07-19-2018, 12:13 PM   #12
Solidjake
\_(ツ)_/
Solidjake's Avatar
Poland
514
Rep
1,181
Posts

Drives: '13 328i Msport 6MT
Join Date: Jun 2009
Location: NYC/Philly

iTrader: (2)

Get the gofastbits DV+

We have a thread on it in the n20 section
__________________
Tensioner/belt DIY | Side skirt extension DIY

Apex SM-10/PSS | 400m/X-ice Xi3 | Injen Intake/Exhaust
Stoptech SS Lines | 335 Brakes | Hawk HPS 5.0 | RBF600
Bootmod3 Stg 1 93 | ER Charge Pipes | Wagner Evo Comp 2 FMIC
Appreciate 0
      07-20-2018, 10:40 PM   #13
00e46sedan
Captain
00e46sedan's Avatar
United_States
45
Rep
623
Posts

Drives: 2013 BMW F30 328i
Join Date: Mar 2014
Location: Colton

iTrader: (4)

Quote:
Originally Posted by Solidjake View Post
Get the gofastbits DV+

We have a thread on it in the n20 section
I actually stumbled upon it on YouTube. What is it exactly? On the video it just shows installation but doesn't explain what its for only that it goes out through out time on the f30?
Appreciate 0
      07-20-2018, 10:48 PM   #14
rjdnyy224
Brigadier General
rjdnyy224's Avatar
United_States
1548
Rep
3,205
Posts

Drives: 2013 328i xDrive
Join Date: Jun 2017
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by 00e46sedan View Post
I actually stumbled upon it on YouTube. What is it exactly? On the video it just shows installation but doesn't explain what its for only that it goes out through out time on the f30?
Well the car comes from the factory with a diverter valve to redirect charged air back into the system, obviously. The GFB DV+ is just a sturdier diverter valve to replace the failure prone factory one. It also has a stiffer spring, which gives you that flutter sound. There's a really in depth thread about it on the N20 sub.
__________________
2013 328i xDrive N20 8AT | Bootmod3 Stage 2 OTS 93oct | Bootmod3 8AT TCU flash | VRSF Street 5" HD Front-Mount Intercooler | VRSF Catless Downpipe | 2.5" custom exhaust cutout | M Performance Exhaust | NGK L/I Spark Plugs | Dinan 20" Wheels Wearing Michelin PS4S's | Dinan Springs and Bumpstops | F80 Style Decklid Spoiler | Debadged | F80 Style Grille | Various Interior Bits |
Appreciate 0
      07-20-2018, 10:51 PM   #15
00e46sedan
Captain
00e46sedan's Avatar
United_States
45
Rep
623
Posts

Drives: 2013 BMW F30 328i
Join Date: Mar 2014
Location: Colton

iTrader: (4)

Quote:
Originally Posted by rjdnyy224 View Post
Well the car comes from the factory with a diverter valve to redirect charged air back into the system, obviously. The GFB DV+ is just a sturdier diverter valve to replace the failure prone factory one. It also has a stiffer spring, which gives you that flutter sound. There's a really in depth thread about it on the N20 sub.

Thank you I'll take a look for sure .
Appreciate 0
      07-21-2018, 01:32 AM   #16
jmg
Major General
jmg's Avatar
United_States
7581
Rep
8,876
Posts

Drives: F80 M3 CS, I01 i3 REx LCI
Join Date: Mar 2013
Location: Orange County, CA

iTrader: (0)

Garage List
Quote:
Originally Posted by rjdnyy224 View Post
Quote:
Originally Posted by 00e46sedan View Post
I actually stumbled upon it on YouTube. What is it exactly? On the video it just shows installation but doesn't explain what its for only that it goes out through out time on the f30?
Well the car comes from the factory with a diverter valve to redirect charged air back into the system, obviously. The GFB DV+ is just a sturdier diverter valve to replace the failure prone factory one. It also has a stiffer spring, which gives you that flutter sound. There's a really in depth thread about it on the N20 sub.
I have yet to hear of a failed DV on stock boost. Is it really that common on tuned N20's?
__________________
2018 F80 ///M3 CS - Lime Rock Grey Metallic
2019 I01 i3 BEV - Giga World
Previous: F80 M3 | I01 i3 Rex LCI | I01 i3 REx | F30 340i M Sport ZTR | F30 328i Sport | Audi B7 S4 25Quattro #33 of 250 | E21 320i

Appreciate 0
      07-21-2018, 08:34 AM   #17
rjdnyy224
Brigadier General
rjdnyy224's Avatar
United_States
1548
Rep
3,205
Posts

Drives: 2013 328i xDrive
Join Date: Jun 2017
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by jmg View Post
I have yet to hear of a failed DV on stock boost. Is it really that common on tuned N20's?
I wouldn't say it's common, but it certainly happens, enough to consider it failure prone, to a degree. They don't just blow up or anything, typically they'll tear at first, creating a smallish boost leak, and the tear can then continue to expand until you have a fairly serious boost leak. They don't catastrophically fail, but they can tear and be the source of a boost leak.
__________________
2013 328i xDrive N20 8AT | Bootmod3 Stage 2 OTS 93oct | Bootmod3 8AT TCU flash | VRSF Street 5" HD Front-Mount Intercooler | VRSF Catless Downpipe | 2.5" custom exhaust cutout | M Performance Exhaust | NGK L/I Spark Plugs | Dinan 20" Wheels Wearing Michelin PS4S's | Dinan Springs and Bumpstops | F80 Style Decklid Spoiler | Debadged | F80 Style Grille | Various Interior Bits |
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 05:15 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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