For anyone having issues with new inlets and your BOV sounding sh!tty/surging noises.

Navykiller · 11-16-2022, 12:59 PM

[QUOTE=iqraceworks;29398594]

As soon as I installed silicone inlets…..it switched over to the “screeching turkey” sound.

With bigger turbos and custom tune…..it’s still got the same “screeching turkey” sound.

/QUOTE]

I would like to know how you know what a screeching turkey sounds like, and why.

So far under boost, Id say more airplane like on my end. goes from turbo spool to when its really spoolin' it sounds fantastic

Dave92N54 · 11-17-2022, 11:10 AM

Lol. My TurboSmart RacePort sounds exactly the same as the day I installed it even after turbos and inlets. I do change the springs for winter/summer as i've seen my car pulls a greater vacuum in the summer with the AC on. This only changes the sound slightly though, more so because the speed it's venting at.

Jaronbwall · 11-18-2022, 07:18 AM

Firestone Indy 500s for the win. Love those tires.

N54Brad · 11-13-2023, 06:29 PM

I've been struggling with the same issue as OP. Basically after installing relocated stainless inlets (1.75") my Tial BOV started to make the turkey squeal noise that we all love.

I ordered a BOV delete plate to rule out if the BOV was actually at fault, and to my surprise it still squeals like a turkey even without a BOV (vacuum line is capped off). I get some compressor surge in 1st gear, and light throttle 2nd-3rd gear (maybe 3psi of boost max), then anything above that will squeal like a pig.

Edit: I should add I am not under/overboosting, no leaks to be found.

isoFLXX · 11-17-2023, 01:45 AM

I been dealing with this issue for 2 years now and gave up on it . Mine started after upgrading to bigger inlets with PS2 turbos. I tried HKS, turbosmart, stock DV, and Tial BOV with no solution. Went through almost every spring that Tial offers and just wasted my money because it never went away. I found that it’s coming out the DCI as you see in my video.

11-16-2022, 12:59 PM	#23
Navykiller Private First Class 65 Rep 120 Posts Drives: 2011 E92 335is Stick Join Date: Aug 2017 Location: Taylor Ham iTrader: (0)	[QUOTE=iqraceworks;29398594] As soon as I installed silicone inlets…..it switched over to the “screeching turkey” sound. With bigger turbos and custom tune…..it’s still got the same “screeching turkey” sound. /QUOTE] I would like to know how you know what a screeching turkey sounds like, and why. So far under boost, Id say more airplane like on my end. goes from turbo spool to when its really spoolin' it sounds fantastic __________________ 2011 335is 6spd - White with Black Base : 5in VRSF IC / BMS CP Raceport BOV / Arm DP / RB Inlets / JB4 w/ MHD BEF Race / Meth cm10 / Modified CDV / BMS DCI / Stage 2 LPFP / Spec 3+ Clutch / - RB 2+ Turbos SHE LIVES \ Ew @ Comic Sans 1992 NA6 Smurf miata - pretty much dead / parting out 2005 Ex 250 ninja Last edited by Navykiller; 11-18-2022 at 11:39 AM..
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11-17-2022, 11:10 AM	#24
Dave92N54 Major 532 Rep 1,167 Posts Drives: 09 E92 335i 6MT Join Date: Nov 2020 Location: Westminster, Maryland iTrader: (0) Garage List 2009 BMW 335i [10.00]	Lol. My TurboSmart RacePort sounds exactly the same as the day I installed it even after turbos and inlets. I do change the springs for winter/summer as i've seen my car pulls a greater vacuum in the summer with the AC on. This only changes the sound slightly though, more so because the speed it's venting at. __________________ 09 E92 335i 6MT / Alpine White / Coral Red / VRSF 7.5" / VRSF DCI / VRSF Catless Downpipes / VTT Charge Pipe / Turbosmart RacePort Gen V / RB OEM Billet Turbos / CD919 Custom Tune / Bilstein PSS9s
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11-18-2022, 07:18 AM	#25
Jaronbwall Driving cars and riding bikes really fast 294 Rep 1,022 Posts Drives: 2009 335i Join Date: Sep 2014 Location: Indianapolis iTrader: (0)	Firestone Indy 500s for the win. Love those tires. __________________ 335i, sport pkg, 3 pedals, Blacked out, LED markers, OZ Ultraleggera wheels, Firestone Indy 500s, x-pipe, vibrant 1792, PE mod MHD stage 2+, BMS DPs, ARM charge pipe, Tial BOV, ARM FMIC, dual cone, CSF radiator, M3 control arms, sways, HAWK pads. https://www.strava.com/athletes/8309149 Follow me on Strava
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11-13-2023, 06:29 PM	#26
N54Brad Registered 0 Rep 1 Posts Drives: 2008 135i Join Date: Nov 2023 Location: Stratford, ON iTrader: (0)	I've been struggling with the same issue as OP. Basically after installing relocated stainless inlets (1.75") my Tial BOV started to make the turkey squeal noise that we all love. I ordered a BOV delete plate to rule out if the BOV was actually at fault, and to my surprise it still squeals like a turkey even without a BOV (vacuum line is capped off). I get some compressor surge in 1st gear, and light throttle 2nd-3rd gear (maybe 3psi of boost max), then anything above that will squeal like a pig. Edit: I should add I am not under/overboosting, no leaks to be found. Last edited by N54Brad; 11-13-2023 at 06:39 PM.. Reason: boost
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11-17-2023, 01:45 AM	#27
isoFLXX Member 0 Rep 9 Posts Drives: 2010 BMW 335i E92 Join Date: Jun 2019 Location: Ventura iTrader: (0)	I been dealing with this issue for 2 years now and gave up on it . Mine started after upgrading to bigger inlets with PS2 turbos. I tried HKS, turbosmart, stock DV, and Tial BOV with no solution. Went through almost every spring that Tial offers and just wasted my money because it never went away. I found that it’s coming out the DCI as you see in my video.
	Appreciate 0 Quote