08-17-2018, 04:08 PM | #1 |
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Strange Turbo Noise 335i xdrive - Youtube link inside
Hello all,
Recently broke my stock chargepipe and installed the new VSFR chargepipe for the x drive model. Boost seems to be holding strong but the turbo is making in odd noise (like a party horn, party blower?). This could either be a boost leak or a diverter valve stuck? Not sure. Anybody ever heard this noise before? |
08-17-2018, 04:55 PM | #2 |
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Man that's funny. The noise sounds exactly like you described. Could it be a bad seal in the middle of the CP allowing air to flow through whatever rubber gasket was there?
What exhaust you running?
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2014 335xi M-Sport 6MT: Estoril Blue II, MHD Stage 2+ , Dinan Exhaust, Dinan CAI, ER Catted DP, ER Chargepipe, AA FMIC.
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08-21-2018, 08:32 PM | #3 |
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This is just the stock exhaust, map 5 with e85 mix.
Makes the same noise in map 1 (but harder to tell) and even less in map 0. This is why I know it’s linked to boost levels. JB4 shows I’m pushing 14 lbs of boost still... would a leak make this noise?! |
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