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BMW 335i N55 Making Weird Noise At High Boost
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11-11-2020, 10:26 PM | #1 |
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BMW 335i N55 Making Weird Noise At High Boost
Hey guys, I have a 2011 335i that's making weird noises when near full boost. Current mods are BMS Intake, VRSF Intercooler, VRSF Charge pipe, VRSF Catless DP and a Stage2+ Tune with flames. Seems like a boost leak to me as the car isn't as fast as I was expecting as well. Let me know if anyone recognizes the sound and knows what it exactly is, any help is appreciated, thanks.
Here is a video of the sound |
11-12-2020, 08:22 AM | #5 |
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11-12-2020, 08:55 AM | #6 |
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I have the same EXACT SOUND. Let me know if you ever find out what it was, I thought there was an exhaust leak but it wasn't. Please let meknow if you ever find out what it is.
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'08 335i AT Titanium Silver | MHD Stage 2+ (91 oct) | xHP Stage 3 | VRSF FMIC [7.5"] | BMS CP + Tial BOV | VRSF Catless DP | VRSF Exhaust [Street] | BMS Dual Cone CAI | BMS Cowl Filters | Bilstein B8 Struts+Eibach Lowering Springs | |
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11-12-2020, 09:02 AM | #7 |
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This is 100% boost leak.
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2011 335is DCT BQ Tuning / BMS CAI / VRSF kittyless DP's / Synapse BOV and charge pipe / 7" VRSF Race FMIC / Walbro 535 and 450 on BMP4 / E90 tune / Diff Brace / PR Coils / Relocation Inlets / DAW Stage3+ Turbos / MMP port injection / xHP Stage 3 / FPR and -6 fuel lines
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11-12-2020, 09:09 AM | #9 |
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It's a Alpine N55 Stage 2+ Flame tune. Just my normal check engine light from the dp's and my adaptive headlight malfunction light
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11-12-2020, 09:45 AM | #10 |
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Engine bay!
You will have to investigate but my guess would be the charge system. Inlet or Outlet.
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2011 335is DCT BQ Tuning / BMS CAI / VRSF kittyless DP's / Synapse BOV and charge pipe / 7" VRSF Race FMIC / Walbro 535 and 450 on BMP4 / E90 tune / Diff Brace / PR Coils / Relocation Inlets / DAW Stage3+ Turbos / MMP port injection / xHP Stage 3 / FPR and -6 fuel lines
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11-12-2020, 10:03 AM | #11 |
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This is what it sounds like to me
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2011 335is DCT BQ Tuning / BMS CAI / VRSF kittyless DP's / Synapse BOV and charge pipe / 7" VRSF Race FMIC / Walbro 535 and 450 on BMP4 / E90 tune / Diff Brace / PR Coils / Relocation Inlets / DAW Stage3+ Turbos / MMP port injection / xHP Stage 3 / FPR and -6 fuel lines
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11-12-2020, 11:00 AM | #12 |
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Got to be great for the turbo..
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11-12-2020, 07:18 PM | #13 |
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11-13-2020, 07:41 AM | #14 |
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You da Real MVP dude, I'll check it out!
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'08 335i AT Titanium Silver | MHD Stage 2+ (91 oct) | xHP Stage 3 | VRSF FMIC [7.5"] | BMS CP + Tial BOV | VRSF Catless DP | VRSF Exhaust [Street] | BMS Dual Cone CAI | BMS Cowl Filters | Bilstein B8 Struts+Eibach Lowering Springs | |
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11-13-2020, 06:56 PM | #15 |
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