Stock boost?

Jerich0 · 07-26-2014, 03:20 PM

Hello guys, just wanted to know the stock boost number in psi for our cars?

Thanks
JC

Delnari · 07-26-2014, 03:59 PM

Should be around 7 lbs for the M235i, not sure what the N20 engine is pushing.

Jerich0 · 07-26-2014, 04:17 PM

Yes I am looking for the n55... 7psi? Seems a bit low dont you think?

HX_Guy · 07-26-2014, 04:40 PM

I'll check later today and report back.

Delnari · 07-26-2014, 06:14 PM

Yes, the six cylinder twin scrolls are low PSI. I know it sounds low given my WRX was 12.5 PSI stock and boosted to 21 lbs at Stage 2+.

chaddy74 · 07-26-2014, 06:30 PM

its 10-11 PSI you will make higher boost in 4th and 5th for example to to the engine load ... and lower boost levels in 2nd and 3rd

daisy16905 · 07-26-2014, 06:58 PM

Is it 9 psi with 2 psi overboost with M235i?????? Getting us to 320 HP vs. normal 300 HP.

chaddy74 · 07-26-2014, 07:11 PM

Looking at the logged data with visible ecu psi against DME values i have the M235i making 11psi

Quote:

Originally Posted by daisy16905

Is it 9 psi with 2 psi overboost with M235i?????? Getting us to 320 HP vs. normal 300 HP.

HX_Guy · 07-26-2014, 07:47 PM

I tested gears #2, #3, #4 and #5 and all of them got up to 11.3 PSI. Gear #1 only did 9.X.
Also tested Comfort, Sport and Sport+ and all reached the same boost levels.

chaddy74 · 07-26-2014, 07:51 PM

guess I was close then

Quote:

Originally Posted by HX_Guy

I tested gears #2, #3, #4 and #5 and all of them got up to 11.3 PSI. Gear #1 only did 9.X.

daisy16905 · 07-26-2014, 11:44 PM

HX guy - What were you using to get all that vehicle detail?

HX_Guy · 07-27-2014, 01:14 AM

OBD Fusion app and ELM327 OBDII reader, see here: http://www.2addicts.com/forums/showthread.php?t=1013843

chaddy74 · 07-27-2014, 01:40 AM

I see you use the JB4 stage 2 hardware for tuning ? Why dont you use the JB4 app for android,iOS,mac or win ? Sorry im confused ? Logging with the JB4 you can log DME and actual PSI and target boost settings ... pretty straight forward.

Quote:

Originally Posted by daisy16905

HX guy - What were you using to get all that vehicle detail?

Guynamedsean · 09-09-2014, 01:18 PM

My cla 45 has 26 psi. Fucking insane.
Engine or grenade?

JustinCredibleM · 09-09-2014, 02:40 PM

Quote:

Originally Posted by Guynamedsean

My cla 45 has 26 psi. Fucking insane.
Engine or grenade?

Its a good engine. Even the stock Evo X runs around 22psi.

07-26-2014, 03:20 PM	#1
Jerich0 Love to Drive 197 Rep 602 Posts Drives: X4 & M4 Join Date: Jul 2009 Location: Around iTrader: (2)	Stock boost? Hello guys, just wanted to know the stock boost number in psi for our cars? Thanks JC
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07-26-2014, 04:40 PM	#4
HX_Guy Captain 119 Rep 623 Posts Drives: 2014 BMW M235i Join Date: Jul 2014 Location: Phoenix, AZ iTrader: (0)	I'll check later today and report back. __________________ 2014 BMW M235i 6MT 2012 Mercedes E350 Bluetec
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07-26-2014, 06:30 PM	#6
chaddy74 Lieutenant 231 Rep 536 Posts Drives: M135i Join Date: May 2014 Location: Australia iTrader: (0)	its 10-11 PSI you will make higher boost in 4th and 5th for example to to the engine load ... and lower boost levels in 2nd and 3rd
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07-26-2014, 06:58 PM	#7
daisy16905 Second Lieutenant 10 Rep 246 Posts Drives: 2014 M235i Join Date: Jul 2006 Location: Olympia, WA iTrader: (1)	Is it 9 psi with 2 psi overboost with M235i?????? Getting us to 320 HP vs. normal 300 HP. __________________ M235i (Black) Auto, JB 4 (Stage 2 / Map 7 with EWG & FF wires) ER DP, resonator delete, running E35, BMW Performance LSD, Hankook Ventus R-S3's (255/35/18 & 235/40/18) ATE Super Blue Racing brake fluid, 35% tint, black grills!
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07-26-2014, 07:47 PM	#9
HX_Guy Captain 119 Rep 623 Posts Drives: 2014 BMW M235i Join Date: Jul 2014 Location: Phoenix, AZ iTrader: (0)	I tested gears #2, #3, #4 and #5 and all of them got up to 11.3 PSI. Gear #1 only did 9.X. Also tested Comfort, Sport and Sport+ and all reached the same boost levels. __________________ 2014 BMW M235i 6MT 2012 Mercedes E350 Bluetec Last edited by HX_Guy; 07-26-2014 at 07:56 PM..
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07-26-2014, 03:59 PM	#2
Delnari Major 255 Rep 1,040 Posts Drives: 2014 MG F22 Auto Join Date: Mar 2010 Location: Alexandria, VA iTrader: (2)	Should be around 7 lbs for the M235i, not sure what the N20 engine is pushing.
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07-26-2014, 04:17 PM	#3
Jerich0 Love to Drive 197 Rep 602 Posts Drives: X4 & M4 Join Date: Jul 2009 Location: Around iTrader: (2)	Yes I am looking for the n55... 7psi? Seems a bit low dont you think?
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07-26-2014, 06:14 PM	#5
Delnari Major 255 Rep 1,040 Posts Drives: 2014 MG F22 Auto Join Date: Mar 2010 Location: Alexandria, VA iTrader: (2)	Yes, the six cylinder twin scrolls are low PSI. I know it sounds low given my WRX was 12.5 PSI stock and boosted to 21 lbs at Stage 2+.
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07-26-2014, 11:44 PM	#11
daisy16905 Second Lieutenant 10 Rep 246 Posts Drives: 2014 M235i Join Date: Jul 2006 Location: Olympia, WA iTrader: (1)	HX guy - What were you using to get all that vehicle detail? __________________ M235i (Black) Auto, JB 4 (Stage 2 / Map 7 with EWG & FF wires) ER DP, resonator delete, running E35, BMW Performance LSD, Hankook Ventus R-S3's (255/35/18 & 235/40/18) ATE Super Blue Racing brake fluid, 35% tint, black grills!
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07-27-2014, 01:14 AM	#12
HX_Guy Captain 119 Rep 623 Posts Drives: 2014 BMW M235i Join Date: Jul 2014 Location: Phoenix, AZ iTrader: (0)	OBD Fusion app and ELM327 OBDII reader, see here: http://www.2addicts.com/forums/showthread.php?t=1013843 __________________ 2014 BMW M235i 6MT 2012 Mercedes E350 Bluetec
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09-09-2014, 01:18 PM	#14
Guynamedsean Banned 31 Rep 193 Posts Drives: 2012 Carbon Black 650i M Sport Join Date: Aug 2010 Location: The Woodlands, tx iTrader: (0)	My cla 45 has 26 psi. Fucking insane. Engine or grenade?
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