E90Post
 


TireRack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > How can I get higher pressure for turbo



Reply
 
Thread Tools Search this Thread
      02-05-2013, 12:36 AM   #1
diddlkiss
Second Lieutenant
China
3

 
Drives: 2010 335i E90 Lci N54
Join Date: May 2012
Location: Tsingtao


Posts: 247
iTrader: (0)

Garage List
How can I get higher pressure for turbo

I got RBturbos for my car 3 months ago, which is FBO. However, only 17.4psi can be obtained. So I got the stock turbo back and its also 17.5. I'm runing 100%meth and don't know why.
I'v been always using the 9-10 map.

Another question is the fuel economy. Its about 14mpg after I installed the Procede rev3. I find other guys usually have 22mpg. Its about 30city and 70suburben free way.I have 20mpg when I'm using all stock I swear I'm carefully driving, any suggestion?

Appreciate 0
      02-05-2013, 01:38 AM   #2
idrift4wd
Brigadier General
44

 
Drives: Three Hundred and Thirty Five
Join Date: Jul 2010
Location: Yonkers NY


Posts: 3,373
iTrader: (0)

Garage List
2007 BMW  [3.50]
i think you can run those a bit harder then 17.4. maybe with a little more tuning and settings you should see 19 peak with meth safetly.

i would be dissapointed as stock turbos can do 17 PSI.
Appreciate 0
      02-05-2013, 02:58 AM   #3
robc1976
DIYER
74

 
robc1976's Avatar
 
Drives: E90 335i
Join Date: Mar 2012
Location: Illinois


Posts: 4,708
iTrader: (11)

Quote:
Originally Posted by idrift4wd View Post
i think you can run those a bit harder then 17.4. maybe with a little more tuning and settings you should see 19 peak with meth safetly.

i would be dissapointed as stock turbos can do 17 PSI.
You can go much harder, this is with a single meth nozzle and only 45% E85 (winter mix)...I can get more if needed:
Attached Images
 
__________________
JB4 G5, WEDGE flash, 455 LPFP, HFS-4 meth kit, BMS OCC, Motiv 750 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295
Appreciate 0
      02-05-2013, 03:01 AM   #4
robc1976
DIYER
74

 
robc1976's Avatar
 
Drives: E90 335i
Join Date: Mar 2012
Location: Illinois


Posts: 4,708
iTrader: (11)

Above was actually with bad gas...timing was bad...here is a better log LOL!!
Attached Images
 
__________________
JB4 G5, WEDGE flash, 455 LPFP, HFS-4 meth kit, BMS OCC, Motiv 750 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Delrin solid subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295
Appreciate 0
      02-05-2013, 03:14 AM   #5
SIKH335
Banned
16

 
Drives: 2007 335i Coupe
Join Date: May 2011
Location: SF Bay Area


Posts: 969
iTrader: (6)

Garage List
2007 E92 335i  [0.50]
Quote:
Originally Posted by diddlkiss
I got RBturbos for my car 3 months ago, which is FBO. However, only 17.4psi can be obtained. So I got the stock turbo back and its also 17.5. I'm runing 100%meth and don't know why.
I'v been always using the 9-10 map.

Another question is the fuel economy. Its about 14mpg after I installed the Procede rev3. I find other guys usually have 22mpg. Its about 30city and 70suburben free way.I have 20mpg when I'm using all stock I swear I'm carefully driving, any suggestion?

The PSI of boost is more of a tuning related issue, I would play with settings on the Procede as RB's can handle more than that. However it could be tied to the lack of MPG.

As for the MPG this is the interesting issue you are having. Your stock MPG is low as well as your tuned which leads me to think you have a Hardware issue, possibly injectors or low compression on a cylinder causing the DME to bandaid something that is mechanically wrong in your motor. If its a bad injector that's the easiest one to fix and there are various ways to check for this. If its not a bad injector then you have an issue that the DME is trying to bandaid with Fuel, in this case more fuel than needed which drops your MPG.
Appreciate 0
      02-05-2013, 07:09 AM   #6
enrita
Major General
Sweden
91

 
enrita's Avatar
 
Drives: 335i - Big turbos
Join Date: Sep 2008
Location: Italian in Sweden


Posts: 7,324
iTrader: (0)

so you replaced turbos again just to find out how much boost they run? the problem is you dont understand how the procede work.
__________________
07 335i AT - TD St.2 Turbos - COBB (Custom Cobb mapping by http://www.protuningfreaks.com/) - JB4G5 ISO - Okada Coils - NGK 5992 Plugs - E85 Walbro - Injen Intake - Helix IC - Snow Stg. 3 - Stett CP - AR DPs - midpipes 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - Level 10 AT upgrade - Alpina AT Flash
Appreciate 0
      02-05-2013, 10:26 AM   #7
Laguna Seca Blue
Captain
United_States
24

 
Laguna Seca Blue's Avatar
 
Drives: 2009 335i Coupe
Join Date: Mar 2012
Location: California


Posts: 817
iTrader: (0)

Quote:
Originally Posted by enrita View Post
so you replaced turbos again just to find out how much boost they run? the problem is you dont understand how the procede work.
It's China, labor is cheap
__________________
E92 335i 6MT | Balloon White | Black Dakota Leather
PROcede Rev3 V5 | AE Quad Exhaust | BMW Performance Short Shift Kit | Gunmetal 19" M3 GTS Wheels | BF Goodrich g-Force T/A KDW 2 | AST 4100 Coilovers | Swift Springs F:280 R:560 | ER Charge Pipe | Tial Blue BOV | VRSF 3" Downpipes | VRSF 7" Intercooler

http://www.e90post.com/forums/showthread.php?t=782212
Appreciate 0
      02-26-2013, 07:03 PM   #8
diddlkiss
Second Lieutenant
China
3

 
Drives: 2010 335i E90 Lci N54
Join Date: May 2012
Location: Tsingtao


Posts: 247
iTrader: (0)

Garage List
Quote:
Originally Posted by enrita View Post
so you replaced turbos again just to find out how much boost they run? the problem is you dont understand how the procede work.
I dont know why my car only 17-17.5psi,
RB turbo and stock turbo all 17-17.5psi.
plz.
Appreciate 0
      02-26-2013, 07:05 PM   #9
N54King
King of the road
2

 
N54King's Avatar
 
Drives: E90 335i
Join Date: Jul 2012
Location: Toronto


Posts: 199
iTrader: (1)

Quote:
Originally Posted by Laguna Seca Blue View Post
It's China, labor is cheap
I wish we had that in north america LOL
__________________
Jet Black / Pre lci E90 / 6mt / FBO /
Appreciate 0
      02-26-2013, 07:22 PM   #10
diddlkiss
Second Lieutenant
China
3

 
Drives: 2010 335i E90 Lci N54
Join Date: May 2012
Location: Tsingtao


Posts: 247
iTrader: (0)

Garage List
Quote:
Originally Posted by N54King View Post
I wish we had that in north america LOL
In BMW SA install the turbo 1000usd
in other automotive plant, 150usdhappyanim:
Appreciate 0
      02-26-2013, 07:24 PM   #11
marcvtec
Lieutenant Colonel
22

 
Drives: 335i
Join Date: Oct 2006
Location: toronto


Posts: 1,794
iTrader: (0)

Cause the tune is restricting you, change the setting or run another tune low 20ish PSI should be nice with good timing
__________________
COBB Powered, Spec2+, Wavetrac, DCI, Forge DV's, AR catless DP's, AA FMIC, M3 links & Sways, 19' BBS LM's wrapped in PSS, Zimmerman cross drilled rotors, hawk carbon pads, M3 Spoiler, AC roof Spoiler, Aero Lip, Vorsteiner Diffuser, m3 sides, Tinted, And One Happy BMW Driver.
Appreciate 0
      02-26-2013, 07:49 PM   #12
diddlkiss
Second Lieutenant
China
3

 
Drives: 2010 335i E90 Lci N54
Join Date: May 2012
Location: Tsingtao


Posts: 247
iTrader: (0)

Garage List
Quote:
Originally Posted by marcvtec View Post
Cause the tune is restricting you, change the setting or run another tune low 20ish PSI should be nice with good timing
this is my procede setting.
any advise
thanks
Attached Images
 
Appreciate 0
      02-27-2013, 04:59 PM   #13
Figure807
Power without control is no power at all...
United_States
3

 
Figure807's Avatar
 
Drives: 335i 6spd Blk/Blk
Join Date: Oct 2009
Location: Honolulu, Hawaii


Posts: 156
iTrader: (1)

Are you running an RB map? Should probably bump up that overboost limit.
__________________
2009 335i Coupe 6MT Blk Sapphire / Blk Leather
2007 328i Coupe 6MT Blk Sapphire / Blk Leather *Sold
1985 Toyota Corolla GTS 5MT 1.5-way Slvr / Blk *Sold
1987 Toyota Corolla GTS 5MT KAAZ 2-way Blk / Blk *Sold
Appreciate 0
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
Forum Jump


All times are GMT -5. The time now is 01:24 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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