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 > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > GFB DV+ on an N55 with the stock turbo?
Extreme Powerhouse
Post Reply
 
Thread Tools Search this Thread
      09-09-2019, 10:06 AM   #1
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
GFB DV+ on an N55 with the stock turbo?

Looking for opinions on upgrading to a Go Fast Bits DV+ with an N55 running BootMod3 EWG Stage2 93 Octane with the stock turbo. I don't expect to ever upgrade the stock turbo due to the huge cost of parts & labor. I'm very happy with this current setup in my daily driver.

I have the impression that upgrading to a DV+ will get the jump on a potential stock diverter valve failure, and also provide better control over intake pressure.

Any opinions are appreciated. Thanks in advance.
Appreciate 0
      09-09-2019, 01:24 PM   #2
e46m3to335i
Major
e46m3to335i's Avatar
United_States
142
Rep
1,350
Posts

Drives: 2014 335i xDrive
Join Date: Feb 2010
Location: Fort Bragg, NC

iTrader: (26)

I noticed a tad better throttle response after I installed mine. Could have been placebo effect, who knows lol. I have one listed for sale if interested, let me know.
__________________
2014 335i xDrive / Silver / ZF8 / M-Sport / 400M / xHP Stage 2
Appreciate 0
      09-09-2019, 01:32 PM   #3
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by e46m3to335i View Post
I noticed a tad better throttle response after I installed mine. Could have been placebo effect, who knows lol. I have one listed for sale if interested, let me know.
Do you mean better throttle response at higher revs, or throttle response done low from a standing start or a lower engine revs?
Appreciate 0
      09-09-2019, 01:36 PM   #4
e46m3to335i
Major
e46m3to335i's Avatar
United_States
142
Rep
1,350
Posts

Drives: 2014 335i xDrive
Join Date: Feb 2010
Location: Fort Bragg, NC

iTrader: (26)

Quote:
Originally Posted by johnung View Post
Quote:
Originally Posted by e46m3to335i View Post
I noticed a tad better throttle response after I installed mine. Could have been placebo effect, who knows lol. I have one listed for sale if interested, let me know.
Do you mean better throttle response at higher revs, or throttle response done low from a standing start or a lower engine revs?
Down low during spirited daily driving is where I noticed it. My car always held boost fairly well so I didn't notice it holding boost any better than the stock DV did.
__________________
2014 335i xDrive / Silver / ZF8 / M-Sport / 400M / xHP Stage 2
Appreciate 0
      09-09-2019, 03:32 PM   #5
BeerHerder
Second Lieutenant
United_States
124
Rep
237
Posts

Drives: BMW 335, BMW X3, Victory Vegas
Join Date: Mar 2019
Location: IL

iTrader: (1)

Quote:
Originally Posted by e46m3to335i View Post
I noticed a tad better throttle response after I installed mine. Could have been placebo effect, who knows lol. I have one listed for sale if interested, let me know.
I noticed your for sale post about 8 hours too late... I would have scooped the FMIC, charge pipe, and DV+.
__________________
Glacier Silver Metallic 335i X-Drive - Can't leave well enough alone...
Carbon Fiber mirror caps & badges, IND Color Matched Reflectors, LED Fogs, BM3 Stage 1 93 OTS, Bimmertech Amp (more to come... always more)
Graphite Metallic X3 (nothing yet, but... you know)
Appreciate 1
      09-09-2019, 10:36 PM   #6
FallenRainDrops
Enlisted Member
11
Rep
36
Posts

Drives: '14 435i RWD
Join Date: Aug 2018
Location: illinois

iTrader: (0)

i'd like to know the answer to this too, as I plan on staying stock turbo
__________________
F32 2014 435i RWD
Borla Atak full exhaust, catless DP, aFe intake, VRSF FMIC, VRSF Chargepipe,
Bootmod3 stage2 Octane 93 (AGG)
BC Racing Coilovers
Appreciate 0
      09-10-2019, 09:52 AM   #7
BeerHerder
Second Lieutenant
United_States
124
Rep
237
Posts

Drives: BMW 335, BMW X3, Victory Vegas
Join Date: Mar 2019
Location: IL

iTrader: (1)

Quote:
Originally Posted by johnung View Post
Looking for opinions on upgrading to a Go Fast Bits DV+ with an N55 running BootMod3 EWG Stage2 93 Octane with the stock turbo. I don't expect to ever upgrade the stock turbo due to the huge cost of parts & labor. I'm very happy with this current setup in my daily driver.

I have the impression that upgrading to a DV+ will get the jump on a potential stock diverter valve failure, and also provide better control over intake pressure.

Any opinions are appreciated. Thanks in advance.
Have you thought about pure stage 1 turbo upgrade? No need for more fuel, modest bump, and I think it's under $1k...
__________________
Glacier Silver Metallic 335i X-Drive - Can't leave well enough alone...
Carbon Fiber mirror caps & badges, IND Color Matched Reflectors, LED Fogs, BM3 Stage 1 93 OTS, Bimmertech Amp (more to come... always more)
Graphite Metallic X3 (nothing yet, but... you know)
Appreciate 0
      09-10-2019, 12:26 PM   #8
e46m3to335i
Major
e46m3to335i's Avatar
United_States
142
Rep
1,350
Posts

Drives: 2014 335i xDrive
Join Date: Feb 2010
Location: Fort Bragg, NC

iTrader: (26)

Pure has stated that 2014+ cars with the EWG turbo, gains would be negligible with their stage one upgrade. PWG cars would see a nice gain with the stage 1.
__________________
2014 335i xDrive / Silver / ZF8 / M-Sport / 400M / xHP Stage 2
Appreciate 1
johnung410.50

      09-10-2019, 04:14 PM   #9
Jeff@TopGearSolutions
BimmerPost Supporting Vendor
Jeff@TopGearSolutions's Avatar
United_States
3014
Rep
67,226
Posts


Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Regardless of modifications, the stock DV will start leaking and rob power. & response. Most don't notice because it happens very slowly and you become accustomed to the current power/response.

A good rule of thumb is if you have 50K miles it's time to upgrade. Stage 1-2+ or Upgraded turbo guys definitely want this upgrade.
__________________
|Like us on Facebook||Evolution Racewerks| |Active Autowerke| |ETS| |Burger Tuning| |PURE Turbos| |Mishimoto||VRSF| |AWE| |Wagner|

|NEW! E90 E92 E93 Sequential LED Side Marker Modules! | |KW| |Spec| |ST Coilovers| |Koni| |Bilstein| |Borla| |Magnaflow| |AFE| |Fabspeed| |Injen| BM3 VRSF ER Discounts & More
Appreciate 0
      09-10-2019, 04:40 PM   #10
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by BeerHerder View Post
Quote:
Originally Posted by johnung View Post
Looking for opinions on upgrading to a Go Fast Bits DV+ with an N55 running BootMod3 EWG Stage2 93 Octane with the stock turbo. I don't expect to ever upgrade the stock turbo due to the huge cost of parts & labor. I'm very happy with this current setup in my daily driver.

I have the impression that upgrading to a DV+ will get the jump on a potential stock diverter valve failure, and also provide better control over intake pressure.

Any opinions are appreciated. Thanks in advance.
Have you thought about pure stage 1 turbo upgrade? No need for more fuel, modest bump, and I think it's under $1k...
I have an N55 EWG which is when BMW switched to a larger turbo with 4" downpipe. I was told Pure Turbo Stage1 is a wash with my car, no real upgrade. Plus on an xdrive I heard the labor to replace the turbo and necessary mods is as much as 16 hours. So not practical for me to mod the engine any further.
Appreciate 1
      09-10-2019, 04:45 PM   #11
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Regardless of modifications, the stock DV will start leaking and rob power. & response. Most don't notice because it happens very slowly and you become accustomed to the current power/response.

A good rule of thumb is if you have 50K miles it's time to upgrade. Stage 1-2+ or Upgraded turbo guys definitely want this upgrade.
Okay so you are saying that the diverter valve is definitely a wear item on a modded car that should be upgraded.

So if you don't have many miles on your car so your stock DV isn't really worn yet, if you upgrade to a DV+ what change or improvement will you feel from the DV+?
Appreciate 0
      09-10-2019, 04:57 PM   #12
Jeff@TopGearSolutions
BimmerPost Supporting Vendor
Jeff@TopGearSolutions's Avatar
United_States
3014
Rep
67,226
Posts


Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by johnung View Post
I have an N55 EWG which is when BMW switched to a larger turbo with 4" downpipe. I was told Pure Turbo Stage1 is a wash with my car, no real upgrade. Plus on an xdrive I heard the labor to replace the turbo and necessary mods is as much as 16 hours. So not practical for me to mod the engine any further.
If you ever thought about Stage 1, just go stage 2. No reason not to want potential extra power and not have to "remod" to a different turbo. The PS2 still drives well at lower boost if someone didn't want to go "all-out".
__________________
|Like us on Facebook||Evolution Racewerks| |Active Autowerke| |ETS| |Burger Tuning| |PURE Turbos| |Mishimoto||VRSF| |AWE| |Wagner|

|NEW! E90 E92 E93 Sequential LED Side Marker Modules! | |KW| |Spec| |ST Coilovers| |Koni| |Bilstein| |Borla| |Magnaflow| |AFE| |Fabspeed| |Injen| BM3 VRSF ER Discounts & More
Appreciate 0
      09-10-2019, 05:35 PM   #13
FastF30
Captain
FastF30's Avatar
288
Rep
946
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Over there

iTrader: (0)

Is there a video for this?
Appreciate 0
      09-10-2019, 05:42 PM   #14
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Quote:
Originally Posted by johnung View Post
I have an N55 EWG which is when BMW switched to a larger turbo with 4" downpipe. I was told Pure Turbo Stage1 is a wash with my car, no real upgrade. Plus on an xdrive I heard the labor to replace the turbo and necessary mods is as much as 16 hours. So not practical for me to mod the engine any further.
If you ever thought about Stage 1, just go stage 2. No reason not to want potential extra power and not have to "remod" to a different turbo. The PS2 still drives well at lower boost if someone didn't want to go "all-out".
The cost of the Pure Stage2 turbo including labor is way out of my price league.
Appreciate 1
      09-10-2019, 05:58 PM   #15
travie319
New Member
3
Rep
27
Posts

Drives: e92
Join Date: May 2012
Location: SoCal

iTrader: (0)

Turbosmart just released an Electronic Plug and Play version of their EM Valve for the N55. They have them available in a Plumb Back Version that recirculates like stock and a Dual Port version that vents to atmosphere. No need to to tear your stock one apart, it's a direct plug and play valve. It sounds great and definitely holds boost better under lighter loads.

Last edited by travie319; 09-10-2019 at 06:56 PM..
Appreciate 1
      09-10-2019, 11:37 PM   #16
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by travie319 View Post
Turbosmart just released an Electronic Plug and Play version of their EM Valve for the N55. They have them available in a Plumb Back Version that recirculates like stock and a Dual Port version that vents to atmosphere. No need to to tear your stock one apart, it's a direct plug and play valve. It sounds great and definitely holds boost better under lighter loads.
Thanks for the info. I searched on N55, BMW, etc on their website but nothing came up. I'll have to call them. Do you have any more specific info like part numbers that are designed for the N55 engine?
Appreciate 0
      09-11-2019, 01:12 PM   #17
travie319
New Member
3
Rep
27
Posts

Drives: e92
Join Date: May 2012
Location: SoCal

iTrader: (0)

I would call them directly for a part number since it has just been released. I am sure we will see more on it soon.
Appreciate 0
      09-11-2019, 01:36 PM   #18
AmuroRay
New Member
2
Rep
27
Posts

Drives: M235i
Join Date: Aug 2019
Location: Florida

iTrader: (0)

I don't see the need in it.
Appreciate 0
      09-11-2019, 05:29 PM   #19
travie319
New Member
3
Rep
27
Posts

Drives: e92
Join Date: May 2012
Location: SoCal

iTrader: (0)

Quote:
Originally Posted by AmuroRay View Post
I don't see the need in it.
I would definitely upgrade over the stock Pierburg Valve that carries open under low boost conditions. It needs to pressurize in order to hold boost and it has been proven to not hold under low RPM and Light Load conditions. It's also nice to have something that can vent more than stock to keep compressor surge under control especially when running more boost or even a bigger compressor wheel like Pure's.

In all fairness there is really no need for anything if we keep them stock.
Appreciate 0
      09-11-2019, 08:06 PM   #20
johnung
Captain
United_States
411
Rep
749
Posts

Drives: 2015 BMW 335i x-Drive Auto
Join Date: Oct 2017
Location: New Jersey

iTrader: (0)

Garage List
Quote:
Originally Posted by travie319 View Post
I would call them directly for a part number since it has just been released. I am sure we will see more on it soon.
I checked the BMW section of their website again today. Nothing newer than N54. No one answered their phone. Left a voicemail but no one called back. Oh well, there's always tomorrow! 😀

UPDATE: I did receive a call back. Sounds like they are in the middle of new product release activities so I'd keep an eye on their website for updated information.
Appreciate 1
      09-12-2019, 07:12 AM   #21
AmuroRay
New Member
2
Rep
27
Posts

Drives: M235i
Join Date: Aug 2019
Location: Florida

iTrader: (0)

Iíll just chime in once more and point out that I googled the Diverter failure and it seems more like a N54/PWG issue. Most OTS and tuner maps arenít running 18psi on the stock turbo.

I was reading a thread this morning on a turbo inlet - that would be where my money goes. 20hp in the top end would be awesome.

https://f87.bimmerpost.com/forums/sh....php?t=1649488
Appreciate 0
      09-12-2019, 08:47 AM   #22
mihail.b
Private
14
Rep
51
Posts

Drives: 335i F30
Join Date: Sep 2018
Location: Melbourne

iTrader: (0)

Quote:
Originally Posted by travie319 View Post
Turbosmart just released an Electronic Plug and Play version of their EM Valve for the N55. They have them available in a Plumb Back Version that recirculates like stock and a Dual Port version that vents to atmosphere. No need to to tear your stock one apart, it's a direct plug and play valve. It sounds great and definitely holds boost better under lighter loads.
Also keen on part numbers and rough ETAs?


I think my DV needs to be upgraded and would rather this if available over the GFB.
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 03:31 PM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, 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