Boost Leak ?

frenchie1013 · 08-12-2016, 01:44 PM

Weird thing happening but certain times at low rpm (1500) in 2nd gear or higher, if I floor the gas my car makes this weird sounds which I can only describe as "waves" or "surges" (noise wise) the car does feel like it is struggling a little but still accelerates - What could this be ?

08-12-2016, 01:49 PM

Log?

frenchie1013 · 08-12-2016, 01:53 PM

I do have one. Once I'm back home from work I will post. Thanks

CanadianTSi · 08-12-2016, 02:39 PM

Sounds like compressor surge. It's never a good idea to lug a turbo engine like that.

frenchie1013 · 08-12-2016, 06:10 PM

Quote:

Originally Posted by CanadianTSi

Sounds like compressor surge. It's never a good idea to lug a turbo engine like that.

Since I'm not sure exactly what compressor surge is, how do i stop it from happening

Edit - just saw some videos of compressor surge....thats not what my car sounds like so i don't think thats the problem

frenchie1013 · 08-12-2016, 06:22 PM

Quote:

Originally Posted by FCobra94

Log?

Here is my log

http://www.datazap.me/u/frenchie1013...ta=4-22&hg=4-6

this was on stage 1+ mad
I now have a customer tune but same exact thing happening.

frenchie1013 · 08-13-2016, 07:54 AM

not sure exactly how to read the logs yet so if anyone has any info they can give that would be great

the only other thing I'm thinking is that my stock Dv's are shot maybe and need to upgrade ?

Sgop335 · 08-13-2016, 09:26 AM

Quote:

Originally Posted by frenchie1013

not sure exactly how to read the logs yet so if anyone has any info they can give that would be great

the only other thing I'm thinking is that my stock Dv's are shot maybe and need to upgrade ?

Seems ok, including boost. No leaks i can see. Main issue is a large correction of 7 in cylinder 2. Not sure whats causing that, but that could be knock. Take care of it.

frenchie1013 · 08-13-2016, 12:24 PM

Quote:

Originally Posted by Sgop335

Quote:

Originally Posted by frenchie1013

not sure exactly how to read the logs yet so if anyone has any info they can give that would be great

the only other thing I'm thinking is that my stock Dv's are shot maybe and need to upgrade ?

Seems ok, including boost. No leaks i can see. Main issue is a large correction of 7 in cylinder 2. Not sure whats causing that, but that could be knock. Take care of it.

What the best course of action on getting that taken care of that issue

pysical · 08-13-2016, 05:46 PM

You can try moving a coil with another cylinder to see if it follows. if it does then it could be the coil. If not you could check plugs.

08-12-2016, 01:44 PM	#1
frenchie1013 First Lieutenant 78 Rep 360 Posts Drives: sedan Join Date: May 2014 Location: CT iTrader: (0)	Boost Leak ? Weird thing happening but certain times at low rpm (1500) in 2nd gear or higher, if I floor the gas my car makes this weird sounds which I can only describe as "waves" or "surges" (noise wise) the car does feel like it is struggling a little but still accelerates - What could this be ? __________________ 2010 335i Rwd 6spd MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters
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08-12-2016, 01:49 PM	#2
FCobra94 Guest 0 Rep n/a Posts Drives:	Log?
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08-12-2016, 01:53 PM	#3
frenchie1013 First Lieutenant 78 Rep 360 Posts Drives: sedan Join Date: May 2014 Location: CT iTrader: (0)	I do have one. Once I'm back home from work I will post. Thanks __________________ 2010 335i Rwd 6spd MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters
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08-12-2016, 02:39 PM	#4
CanadianTSi Captain 207 Rep 602 Posts Drives: 2014 535 xDrive Diesel Join Date: Feb 2007 Location: Alberta iTrader: (0)	Sounds like compressor surge. It's never a good idea to lug a turbo engine like that.
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08-13-2016, 07:54 AM	#7
frenchie1013 First Lieutenant 78 Rep 360 Posts Drives: sedan Join Date: May 2014 Location: CT iTrader: (0)	not sure exactly how to read the logs yet so if anyone has any info they can give that would be great the only other thing I'm thinking is that my stock Dv's are shot maybe and need to upgrade ? __________________ 2010 335i Rwd 6spd MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters
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08-13-2016, 05:46 PM	#10
pysical Captain 127 Rep 712 Posts Drives: 2009 335xi Join Date: Feb 2016 Location: Laurel MD iTrader: (1)	You can try moving a coil with another cylinder to see if it follows. if it does then it could be the coil. If not you could check plugs.
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