How can I get higher pressure for turbo - BMW 3-Series (E90 E92) Forum

diddlkiss · 02-05-2013, 12:36 AM

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?

idrift4wd · 02-05-2013, 01:38 AM

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.

robc1976 · 02-05-2013, 02:58 AM

Quote:

Originally Posted by idrift4wd

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:

robc1976 · 02-05-2013, 03:01 AM

Above was actually with bad gas...timing was bad...here is a better log LOL!!

SIKH335 · 02-05-2013, 03:14 AM

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.

enrita · 02-05-2013, 07:09 AM

so you replaced turbos again just to find out how much boost they run? the problem is you dont understand how the procede work.

Laguna Seca Blue · 02-05-2013, 10:26 AM

Quote:

Originally Posted by enrita

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

diddlkiss · 02-26-2013, 07:03 PM

Quote:

Originally Posted by enrita

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.

N54King · 02-26-2013, 07:05 PM

Quote:

Originally Posted by Laguna Seca Blue

It's China, labor is cheap

I wish we had that in north america LOL

diddlkiss · 02-26-2013, 07:22 PM

Quote:

Originally Posted by N54King

I wish we had that in north america LOL

In BMW SA install the turbo 1000usd
in other automotive plant, 150usdhappyanim：

marcvtec · 02-26-2013, 07:24 PM

Cause the tune is restricting you, change the setting or run another tune low 20ish PSI should be nice

with good timing

diddlkiss · 02-26-2013, 07:49 PM

Quote:

Originally Posted by marcvtec

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

Figure807 · 02-27-2013, 04:59 PM

Are you running an RB map? Should probably bump up that overboost limit.

02-05-2013, 12:36 AM	#1
diddlkiss Second Lieutenant Drives: 2010 335i E90 Lci N54 Join Date: May 2012 Location: Tsingtao Posts: 235 iTrader: (0) Garage List 2010 BMW E90 LCI 335i [3.75]	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?
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02-05-2013, 03:01 AM	#4
robc1976 Colonel Drives: E90 335i Join Date: Mar 2012 Location: Illinois Posts: 2,514 iTrader: (8)	Above was actually with bad gas...timing was bad...here is a better log LOL!! Attached Images __________________ JB4 G5 ISO+BMS flash,Walbro 455 LPFP, DO meth kit 4-AN SS lines, BMS OCC, RB turbos W/3.5 N20 sensor, RB valve, BMS DCI, 3" AR kittyless Dps, Strett 2 oil OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 Strut Brace, M3 front sway-bar, Meyle HD tie-rods, HPA rear toe arms, Wavetrac LSD, DEFIV differential kit, BC Coil-overs, Power-Flex subframe bushings, stoptech slotted rotors, Rogue Tranny Mounts, Concept 1 CS-5.0 rims,

02-05-2013, 07:09 AM	#6
enrita Major General Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden Posts: 6,988 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

02-26-2013, 07:24 PM	#11
marcvtec Lieutenant Colonel Drives: 335i Join Date: Oct 2006 Location: toronto Posts: 1,604 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, 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.

02-27-2013, 04:59 PM	#13
Figure807 Power without control is no power at all... 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

02-05-2013, 01:38 AM	#2
idrift4wd Colonel Drives: Three Hundred and Thirty Five Join Date: Jul 2010 Location: Yonkers NY Posts: 2,582 iTrader: (0) Garage List 2007 BMW [3.25]	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.

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