Boost

Ohio Army Man · 06-06-2014, 04:56 PM

I looked, but I cannot find how much boost the M235i is running at peak, for a stock car. Any ideas?

kerm1t · 06-06-2014, 05:07 PM

stock im not sure, but im currently hitting between 13-15 psi

Ohio Army Man · 06-06-2014, 05:18 PM

Yea... Have stage 1 now, JB4, tomorrow by 3pm...

Just trying to find out where the motor started from.

jeffclev · 06-06-2014, 07:14 PM

I have a BT OBDII and DashCmd app that has a "calculated" boost. Highest I have seen is 8.5 PSI. Strange to not have a boost gauge really …

Ohio Army Man · 06-06-2014, 08:36 PM

It is odd

Delnari · 06-06-2014, 08:44 PM

I have read someplace on here that 7-9 lbs is the factory boost peaks, depending on running conditions (temp, humidity, fuel grade, etc.). With the JB4 attached you won't be able to rely on the OBDII connection for accurate reading of boost.

jeremicium · 06-07-2014, 12:29 AM

I remember seeing somewhere that stock was between 7 and 8 PSI. Pretty low, and lots of room for tuning increases.

06-06-2014, 04:56 PM	#1
Ohio Army Man Private First Class 14 Rep 147 Posts Drives: 2014 M235i Join Date: Feb 2013 Location: Earth iTrader: (0)	Boost I looked, but I cannot find how much boost the M235i is running at peak, for a stock car. Any ideas?
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06-06-2014, 05:07 PM	#2
kerm1t Captain 170 Rep 926 Posts Drives: 17 M3 ZCP Stage 2 Join Date: Jul 2013 Location: San Francisco iTrader: (0)	stock im not sure, but im currently hitting between 13-15 psi
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06-06-2014, 05:18 PM	#3
Ohio Army Man Private First Class 14 Rep 147 Posts Drives: 2014 M235i Join Date: Feb 2013 Location: Earth iTrader: (0)	Yea... Have stage 1 now, JB4, tomorrow by 3pm... Just trying to find out where the motor started from.
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06-06-2014, 07:14 PM	#4
jeffclev Private 8 Rep 91 Posts Drives: 2014 M235i, 2018 X5 Join Date: Feb 2014 Location: SF Bay Area iTrader: (0)	I have a BT OBDII and DashCmd app that has a "calculated" boost. Highest I have seen is 8.5 PSI. Strange to not have a boost gauge really …
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06-06-2014, 08:36 PM	#5
Ohio Army Man Private First Class 14 Rep 147 Posts Drives: 2014 M235i Join Date: Feb 2013 Location: Earth iTrader: (0)	It is odd
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06-06-2014, 08:44 PM	#6
Delnari Major 256 Rep 1,040 Posts Drives: 2014 MG F22 Auto Join Date: Mar 2010 Location: Alexandria, VA iTrader: (2)	I have read someplace on here that 7-9 lbs is the factory boost peaks, depending on running conditions (temp, humidity, fuel grade, etc.). With the JB4 attached you won't be able to rely on the OBDII connection for accurate reading of boost.
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06-07-2014, 12:29 AM	#7
jeremicium Major 171 Rep 1,178 Posts Drives: 2011 E92 328i Join Date: May 2009 Location: Tacoma, Wa. USA iTrader: (0) Garage List 2011 BMW 328i [0.00] 2009 Porsche Cayman S [0.00] 2016 BMW M2 [0.00] 2001 Honda S2000 [0.00]	I remember seeing somewhere that stock was between 7 and 8 PSI. Pretty low, and lots of room for tuning increases.
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