M57 Boost Gauge - BMW 3-Series (E90 E92) Forum

Park2670 · 12-24-2011, 10:25 AM

Wondering if anybody in here knew if we could run a boost gauge in the 335d to just watch the boost. I still have my RIXster boost gauge from my N54 335i.

Figured it would be fun to watch when, how high, and how long the boost runs while driving around.

Any tips or suggestions if there is a way to tap boost pressure on this motor?

scott135i · 12-24-2011, 11:13 AM

Quote:

Originally Posted by Park2670

Wondering if anybody in here knew if we could run a boost gauge in the 335d to just watch the boost. I still have my RIXster boost gauge from my N54 335i.

Figured it would be fun to watch when, how high, and how long the boost runs while driving around.

Any tips or suggestions if there is a way to tap boost pressure on this motor?

Was thinking of the same. Bump.

Park2670 · 12-29-2011, 01:16 PM

Quote:

Originally Posted by scott135i

Was thinking of the same. Bump.

Guess we are out of luck? Anybody know which hoses have boost pressure in them?

BMW.335D · 01-01-2012, 12:15 AM

Wondering the same also

cptcrunch · 01-03-2012, 02:25 PM

Be nice if we could get this on the dash somehow without having an aux pod/controller.

Park2670 · 01-05-2012, 08:22 AM

Tried a few lines last night. All I was getting was vacuum. No boost.

Concentric190 · 01-05-2012, 10:53 AM

Quote:

Originally Posted by Park2670

Tried a few lines last night. All I was getting was vacuum. No boost.

did you take it for a drive?

Park2670 · 01-05-2012, 10:55 AM

Quote:

Originally Posted by Concentric190

did you take it for a drive?

Yea. Drove around the block. One of the lines was crushed from install on my 2007 335i so that might be it as well.

neovb · 02-06-2012, 01:51 PM

Has anyone figured this out yet? I have a free boost gauge coming my way and I'd really love to install it!

Park2670 · 02-06-2012, 09:13 PM

Quote:

Originally Posted by neovb

Has anyone figured this out yet? I have a free boost gauge coming my way and I'd really love to install it!

I dont know if it is possible. Every line has vacuum that I was able to find. I may just sell the gauge and pod.

neovb · 02-07-2012, 12:47 PM

Did you check to see if there were any vacuum lines running directly from the turbo?

I know where we can tap for an electric boost signal, but I guess thats not gonna help anyone.

scott135i · 02-07-2012, 10:42 PM

Anyone have a bav tech cable. I need to find mine. But I know on the n54 it gave a boost readout. It's on a laptop but still. We can put to rest debates of how much boost the D runs. I shall look for mine.

taibanl · 04-27-2013, 03:09 PM

Quote:

Originally Posted by neovb

Did you check to see if there were any vacuum lines running directly from the turbo?

I know where we can tap for an electric boost signal, but I guess thats not gonna help anyone.

1) where can you tap for an electric boost
2) can you tap fitting 10 in this diagram?
http://realoem.com/bmw/showparts.do?...25&hg=11&fg=45

Edit:

Fitting 10 is in two places: One on the aft side of the motor tucked back under the lip, and the other, at the front top of the motor. Is either of these places a correct place to tap?

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Aft

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I am comparing to the Tap intructions for the N54 (other side of the engine bay)...See PDF picture
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N54 pdf instructions

taibanl · 04-27-2013, 03:45 PM

Quote:

Originally Posted by Park2670

Tried a few lines last night. All I was getting was vacuum. No boost.

Where did i try??

TDIwyse · 04-27-2013, 08:13 PM

Quote:

Originally Posted by taibanl

1) where can you tap for an electric boost

Here's where you can tap into the MAP sensor.

http://www.e90post.com/forums/showpo...3&postcount=19

taibanl · 04-28-2013, 11:50 AM

Quote:

Originally Posted by TDIwyse

Here's where you can tap into the MAP sensor.

http://www.e90post.com/forums/showpo...3&postcount=19

TDIWyse

Looks like I could use the n55 mode of the p3 gage to get a reading...think it will work? Then again maybe not? bc the 0-5v of the MAP sensor may not be indicative of the the same boost pressure between the n55 and m57?

If you could have a look at: http://www.p3cars.com/bmw-install and scroll down to the "Config..." section of the page and read the notes next to "Cal.B" it would be a great help. I know I am asking a lot but I am noob at this stuff.

Can you definitively say that neither of the T fittings I took pics of will read boost?

Edit: uploading Calibration instructionsP3_Vent_Gauge_Setup_Configuration[1].pdf

@ anyone
There has got to be a boost indication somewhere besides the large intake pipe???

Park2670 · 04-28-2013, 02:34 PM

From my short testing, all of the lines I tested were only vacuum. I assumed they set the M57 up in a similar way to the N55. No boost pressures in the vacuum lines. I ended up selling my gauge.

taibanl · 04-28-2013, 02:50 PM

Quote:

Originally Posted by Park2670

From my short testing, all of the lines I tested were only vacuum. .

Can you confirm trying both of those T fitting locations?:

Quote:

Originally Posted by Park2670

I assumed they set the M57 up in a similar way to the N55. No boost pressures in the vacuum lines..

I wasn't aware of that...Why isn't our boost on the CANBUS like N55 then?

Do you think the MAP 0-5v tap would work as an alternative? Did you try it?

Too bad you sold the gauge!

Park2670 · 04-28-2013, 02:52 PM

Sorry I did sell before I investigated more. I honestly cant remember where I checked when I had the gauge!

Good luck finding something!

12-24-2011, 10:25 AM	#1
Park2670 Lieutenant General Drives: 2011 335d Join Date: Jan 2006 Location: UTAH Posts: 17,951 iTrader: (5)	M57 Boost Gauge Wondering if anybody in here knew if we could run a boost gauge in the 335d to just watch the boost. I still have my RIXster boost gauge from my N54 335i. Figured it would be fun to watch when, how high, and how long the boost runs while driving around. Any tips or suggestions if there is a way to tap boost pressure on this motor? __________________ Utah Chat Thread 2011 335d ///M-Sport
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01-03-2012, 02:25 PM	#5
cptcrunch Captain Crunch Drives: 2011 335D Join Date: May 2011 Location: Cincinnati Posts: 221 iTrader: (0)	Be nice if we could get this on the dash somehow without having an aux pod/controller. __________________ 2011 335D Space Grey, Black Leather Interior, ZSP, ZPP, ZCW, 6FL, Satellite Radio, Nav, Base Audio

01-05-2012, 08:22 AM	#6
Park2670 Lieutenant General Drives: 2011 335d Join Date: Jan 2006 Location: UTAH Posts: 17,951 iTrader: (5)	Tried a few lines last night. All I was getting was vacuum. No boost. __________________ Utah Chat Thread 2011 335d ///M-Sport

02-07-2012, 10:42 PM	#12
scott135i Major Drives: 2011 BMW 335d M-Sport Join Date: Feb 2009 Location: NYC Metro Posts: 1,387 iTrader: (7)	Anyone have a bav tech cable. I need to find mine. But I know on the n54 it gave a boost readout. It's on a laptop but still. We can put to rest debates of how much boost the D runs. I shall look for mine. __________________ 2011 BMW 335d Sedan (Blue Water/Black) : Current 2008 BMW 135i Coupe (BSM/Red) & (White/Black) Retired 2007 BMW Z4 M (White/Red): Retired 2003 & 2006 Cadillac CTS : Retired 1993 FD Single Turbo Mazda RX7: Retired

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01-01-2012, 12:15 AM	#4
BMW.335D New Member Drives: 2011 BMW 335d Join Date: Dec 2011 Location: Tulsa, OK Posts: 7 iTrader: (0)	Wondering the same also

02-06-2012, 01:51 PM	#9
neovb Private Drives: 2011 BMW 335d Join Date: Feb 2011 Location: Arlington, VA Posts: 76 iTrader: (0)	Has anyone figured this out yet? I have a free boost gauge coming my way and I'd really love to install it!

02-07-2012, 12:47 PM	#11
neovb Private Drives: 2011 BMW 335d Join Date: Feb 2011 Location: Arlington, VA Posts: 76 iTrader: (0)	Did you check to see if there were any vacuum lines running directly from the turbo? I know where we can tap for an electric boost signal, but I guess thats not gonna help anyone.

04-28-2013, 02:34 PM	#17
Park2670 Lieutenant General Drives: 2011 335d Join Date: Jan 2006 Location: UTAH Posts: 17,951 iTrader: (5)	From my short testing, all of the lines I tested were only vacuum. I assumed they set the M57 up in a similar way to the N55. No boost pressures in the vacuum lines. I ended up selling my gauge.

04-28-2013, 02:52 PM	#19
Park2670 Lieutenant General Drives: 2011 335d Join Date: Jan 2006 Location: UTAH Posts: 17,951 iTrader: (5)	Sorry I did sell before I investigated more. I honestly cant remember where I checked when I had the gauge! Good luck finding something!