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  1. #1
    Veteran Member Three Rings mike0819's Avatar
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    Can the c7 4.0 engine make blow off valve noise

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    Previously own an r35 gtr,.had aftermarket blow off valve installed, that whistle intake noise sound great.

    Just wondering does the c7 engine have blow off valves? Any way can mod to have that intake noise? Thanks
    Last edited by mike0819; 11-10-2017 at 04:21 PM.

  2. #2
    Veteran Member Three Rings GilliamOS's Avatar
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    2013 A6 3.0T Prestige | 2013 Elantra GT
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    Oh boy.
    2013 A6 3.0T - Slightly better than poverty package.

    Past:
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    2000 A4 1.8T - Sold
    1999 Millenia S - Sold, though it should've been crushed 'n cubed
    1997 A4 1.8T - Totaled, repaired, sold years later better than before
    1990 Maxima - Totaled from hail dents
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    1986 Golf Diesel - Rusted and fell apart

  3. #3
    Established Member Two Rings jtron's Avatar
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    Quote Originally Posted by GilliamOS View Post
    Oh boy.
    lmao
    2014 A6 2.0 TFSI Prem Pl | APR 93 STG II | K&N RAI | APR Downpipe | Custom 3" w Borla Mufflers | Spec 1 SPL-001 | H&R Coil Springs
    Prev: 2012 A4 S-Line

  4. #4
    Veteran Member Three Rings sickmade0331's Avatar
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    Nov 11 2013
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    Monroe Washington

    Quote Originally Posted by mike0819 View Post
    Previously own an r35 gtr,.had aftermarket blow out valve installed, that whistle intake noise sound great.

    Just wondering does the c7 engine have blow out valves? Any way can mod to have that intake noise? Thanks
    There called blow off valves! Throw a intake on it and cal it a day.

    Sent from my SM-G955U using Audizine mobile app

  5. #5
    Established Member Two Rings jtron's Avatar
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    Jun 23 2017
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    Don't use BOV, use a DV if you really feel like you need to.

    This is a video I shot a few weeks back on in-cab sound as it drops in RPMs. Started when I ripped out OEM airbox and hooked in a K&N RAI. If you need more than that then yiiiiiikes.


    2014 A6 2.0 TFSI Prem Pl | APR 93 STG II | K&N RAI | APR Downpipe | Custom 3" w Borla Mufflers | Spec 1 SPL-001 | H&R Coil Springs
    Prev: 2012 A4 S-Line

  6. #6
    Veteran Member Four Rings ericw.'s Avatar
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    Apr 23 2011
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    74496
    My Garage
    C7 S7 4.0TT, Jeep JKU, MB GLB
    Location
    Sac Area, CA

    Quote Originally Posted by mike0819 View Post
    Previously own an r35 gtr,.had aftermarket blow out valve installed, that whistle intake noise sound great.

    Just wondering does the c7 engine have blow out valves? Any way can mod to have that intake noise? Thanks
    These engines are not designed to dump boost.

    Sent from my SM-G950U using Tapatalk
    IG @lolzhax
    //AGILITYDRIVES.US
    C7 S7 4.0tt faster than kaploww and passed smog | LX7U | JHM STG3 ECU+TCU | JHM DP + CATBACK + Oil Screen Relocation + LW Crank Pulley + Heat Exchanger | SRM +4MM Turbos | S-FloV2 | EUROCODE SWAYS | CETE ASC | RFX7 | PS4S | RS7 FR+R | PD700R Splitter | Maxton Skirt+Spoiler Extensions | Indicator Delete | Hardwired
    b7 a4 2.0t | Stage 2+ | DTM Body [sold]

  7. #7
    Established Member Two Rings lapsandwich's Avatar
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    Sep 28 2015
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    358465
    Location
    Langley BC Canada

    Quote Originally Posted by mike0819 View Post
    Previously own an r35 gtr,.had aftermarket blow out valve installed, that whistle intake noise sound great.

    Just wondering does the c7 engine have blow out valves? Any way can mod to have that intake noise? Thanks


    Some men just want to watch the world burn.
    2014 S6 - 3" catless downpipes - HPA motorsports stage 2 - Aem methanol injection - Forge atmospheric Bovs

    2007 Ram 3500 - 5.9 cummins - 66mm turbo - built trans - mild fuel

  8. #8
    Active Member Two Rings stevereddy's Avatar
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    Jun 26 2017
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  9. #9
    Veteran Member Three Rings mike0819's Avatar
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    nz

    Quote Originally Posted by jtron View Post
    Don't use BOV, use a DV if you really feel like you need to.

    This is a video I shot a few weeks back on in-cab sound as it drops in RPMs. Started when I ripped out OEM airbox and hooked in a K&N RAI. If you need more than that then yiiiiiikes.


    Does it have performance benefit to remove the factory air box? Or it's mainly the sound difference

  10. #10
    Senior Member Three Rings zoomzoom!'s Avatar
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    May 28 2016
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    2015 Q5 3.0T (Wife), 2000 GMC Sierra
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    I wonder if you could just modify a Whistletip to perform the same function?





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  11. #11
    Established Member Two Rings lapsandwich's Avatar
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    Sep 28 2015
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    Quote Originally Posted by zoomzoom! View Post
    I wonder if you could just modify a Whistletip to perform the same function?







    Wooooo WHOOOH
    2014 S6 - 3" catless downpipes - HPA motorsports stage 2 - Aem methanol injection - Forge atmospheric Bovs

    2007 Ram 3500 - 5.9 cummins - 66mm turbo - built trans - mild fuel

  12. #12
    Veteran Member Four Rings DGVR6's Avatar
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    Aug 03 2014
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    Queens

    Lol.. I want the Supra blow off valve.. or the tial 440 from my old vr
    C7.5 S6 P+ Mythos Black
    [email protected] 103oct Stage 2 100 File/RACECHIP
    [email protected] 100oct Stage 1 93 File
    APR Tuned Stage 2 ECU/TCU | Roc Euro | Catless Downpipes | Milltek Resonated
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  13. #13
    Established Member Two Rings jtron's Avatar
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    Jun 23 2017
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    Quote Originally Posted by mike0819 View Post
    Does it have performance benefit to remove the factory air box? Or it's mainly the sound difference
    Never dyno’d so can’t say but I wanted it for visual aesthetic and increased airflow. Subjectively, I️ absolutely feel a difference in midrange power bands. sound was a quite unexpected benefit.


    Sent from my iPhone using Audizine
    2014 A6 2.0 TFSI Prem Pl | APR 93 STG II | K&N RAI | APR Downpipe | Custom 3" w Borla Mufflers | Spec 1 SPL-001 | H&R Coil Springs
    Prev: 2012 A4 S-Line

  14. #14
    Established Member Two Rings jtron's Avatar
    Join Date
    Jun 23 2017
    AZ Member #
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    Location
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    2014 A6 2.0 TFSI Prem Pl | APR 93 STG II | K&N RAI | APR Downpipe | Custom 3" w Borla Mufflers | Spec 1 SPL-001 | H&R Coil Springs
    Prev: 2012 A4 S-Line

  15. #15
    Veteran Member Four Rings ericw.'s Avatar
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    Apr 23 2011
    AZ Member #
    74496
    My Garage
    C7 S7 4.0TT, Jeep JKU, MB GLB
    Location
    Sac Area, CA

    IG @lolzhax
    //AGILITYDRIVES.US
    C7 S7 4.0tt faster than kaploww and passed smog | LX7U | JHM STG3 ECU+TCU | JHM DP + CATBACK + Oil Screen Relocation + LW Crank Pulley + Heat Exchanger | SRM +4MM Turbos | S-FloV2 | EUROCODE SWAYS | CETE ASC | RFX7 | PS4S | RS7 FR+R | PD700R Splitter | Maxton Skirt+Spoiler Extensions | Indicator Delete | Hardwired
    b7 a4 2.0t | Stage 2+ | DTM Body [sold]

  16. #16
    Established Member Two Rings jtron's Avatar
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    Jun 23 2017
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    Yeah, I took an English class back in 87 ;). I didn’t run the search with any engine model.

    I doubt ECS is running a massive sale on my 3 legged unicorn’s parts. I️ don’t know many things but I can guess they’ve got 4.0 parts too.


    Sent from my iPhone using Audizine
    2014 A6 2.0 TFSI Prem Pl | APR 93 STG II | K&N RAI | APR Downpipe | Custom 3" w Borla Mufflers | Spec 1 SPL-001 | H&R Coil Springs
    Prev: 2012 A4 S-Line

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