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  1. #1
    Veteran Member Four Rings Avant Nate's Avatar
    Join Date
    Dec 23 2009
    AZ Member #
    52450
    My Garage
    2001 Audi Allroad 6MT,1999 Yukon Denali, 1987 4Runner
    Location
    Boulder, CO

    Quieting turbo spool up noise.

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    I know it seems a little weird, but sometimes i wish turbo spool up noise, and dv noise were a lot quieter. Windows down, with turbo spool, but mostly air getting sucked in sounds like a turbine engine. Easy solution, just drive slower, but who wants to do that? With my current config, plus future plans, a stock air box is out of the question.
    Any suggestions?

    Are GTX's generally quieter or louder than there gt counterparts?
    99.5 1.8T QMS: GT2860RS .63 T3, PSI T3 Mani, Turbosmart 38mm EWG, Unitronic 415, Forge 007,Treadstone TR18 FMIC, Walbro e85 450, FSI coil conversion, 3" DIY Magnaflow/Dynomax VT exhaust
    Depo ecodes, DDM slim 6000k, VDO boost gauge, PLX AFR, Greddy profec B EBC,
    H&R sport springs, 034 rear sway, 034 rear diff carrier, A8 fronts,18x8 OZ Superleggera
    Next up E85, efr 7163 or gtx3071r?
    01 allroad 2.7t 6mt, GIAC stage 1

  2. #2
    Veteran Member Four Rings walky_talky20's Avatar
    Join Date
    Jun 30 2008
    AZ Member #
    30427
    Location
    Erie, Pennsylvania

    Is this post for real? "I want to make my Big Turbo car sound less Turbo-ey". lol

    I put a Forge splitter valve on my car because I wanted to hear more turbo-ish noises.
    ^Don't listen to this guy, he's not even a mechanic.
    2001 Laser Red A4 1.8TQM, 5-Speed Swapped, 4.11 Final Drive, APR 93, 2.5" Exhaust, ST Coilovers, 034 RSB, A8 Brakes Front & Rear
    2006 Passion Red Volvo V50 T5 AWD 6MT
    2000 Satin Silver Passat 1.8T FWD Wagon, Slippy Tiptronic, 15" Hubcaps
    2001 Aluminum Silver Metallic A4 Avant 1.8TQM (winter sled)

  3. #3
    Veteran Member Four Rings
    Join Date
    Sep 24 2010
    AZ Member #
    64817
    My Garage
    2001_Corvette_Z06
    Location
    Costa Mesa, SoCal

    I had the same issue with my FrankenTurbo setup while using a cone filter on 3" MAF housing.
    My solution: stock air box; much quieter. I think it unfortunate this won't be a viable solution for you, but understandable.

    Here's my take: if you can make some sort of enclosure that completely surrounds your air filter, and adapt it do the air inlet in the radiator support/lock carrier (or some other non-stock air inlet location), you ought to be able to reduce this noise greatly.
    2011 Audi A4 Avant Prestige S-Line : Motoza ECU+TCU Stage 1, 4M Q7 6-piston with SQ5 rotors, C7 S6 rear brakes
    2001 Corvette (C5) Z06

    Past: 2015 A3 2.0T, 2001.5 S4 Avant 6mt , 2004 A4 USP 6mt , 1998.5 A4 1.8TM , 2001.5 A4 1.8TQM [gone and missed]

  4. #4
    Veteran Member Four Rings redline380's Avatar
    Join Date
    Oct 30 2008
    AZ Member #
    34773
    My Garage
    B5, B7, B8, 8V, 4M
    Location
    Big Lake, MN

    Lots of larger turbos come with a "silencer ring". There is a lip machined on the inside of the turbo inlet, and a snap ring is installed in that groove.

    It would cost a lot and could alter the way your turbo works, but hey, its a solution.

    This one looks like it is not removable and it was just machined on the inside.


    “You may recall we went to a PARK IN BOTSWANA." George W. Bush, 43rd President of the United States of America

    2020 SQ7- Wife's ride
    2018 RS3- Wish I could drive it more
    2010 A4- Why do I even own this?
    2008 RS4- I like this car
    2007 A4 Avant 2.0T Titanium Package, aka "Big Red"
    2000 S4- Working?

  5. #5
    Veteran Member Four Rings getslideways's Avatar
    Join Date
    May 16 2008
    AZ Member #
    28851
    Location
    WA



    that way when your penis grows back you can just take them off JFWY

  6. #6
    Veteran Member Four Rings andyrew's Avatar
    Join Date
    Apr 22 2007
    AZ Member #
    17483
    My Garage
    73 Porsche 914 AEB 1.8T CTB5356, 16 Infiniti Q50 3.0tt, 2016 Honda Pilot EX-L
    Location
    Riverbank, Ca

    Build a box for your intake. That is where 90% of the noise comes from.
    73 914 1.8T AEB + FWD 016 trans
    AWM Wiring harness, Comp Turbo CTB5356, ABS, ESP, Custom interior, Flares, Brakes, Custom everything :) Build below
    Budget Outlaws Youtube
    http://www.914world.com/bbs2/index.php?showtopic=114780

  7. #7
    Established Member Two Rings cclarkb5's Avatar
    Join Date
    Feb 02 2015
    AZ Member #
    312664
    My Garage
    1991 Audi 90 20v
    Location
    Bellingham, Washington

    B5s are very turbine-y. I'm naturally aspirated and my car sounds like a jet engine from the drivers seat


    Sent from my iPhone using Tapatalk
    They last long if you treat them any better than totally shitty. | 1999.5 2.8QA Volcano Black Mica | 1991 90 20vQM Pearl White |

  8. #8
    Veteran Member Four Rings melomandn's Avatar
    Join Date
    Nov 08 2010
    AZ Member #
    66735
    My Garage
    958 CTT, 996 C4S, old motorcycles
    Location
    Upstate New York

    Quote Originally Posted by andyrew View Post
    Build a box for your intake. That is where 90% of the noise comes from.
    This, and line the box with foam. Sound deadening foam if you really want to go for broke.

    Past:

    - B7 avant, 3.0t swapped
    - B8 S4, Stage 2+
    - B6 S4, not stock
    - B5 S4 Clone, built motor, 2871r

  9. #9
    Veteran Member Four Rings Seerlah's Avatar
    Join Date
    Dec 05 2007
    AZ Member #
    23104
    Location
    A place between here and there

    Quote Originally Posted by getslideways View Post


    that way when your penis grows back you can just take them off JFWY
    lol. Old B5 A4 veteran. How are things on the other side?

    Nate, post a pic of your current intake. They are right, as you need some type of sound insulation. I like custom stuff, so incan make suggestions off your current intake with basically a sound deadening intake box. Im no expert on this matter, but i like cool one-off projects.
    I hate it when my car acts like a little bitch, treating me like a bitch

  10. #10
    Veteran Member Four Rings viceprp's Avatar
    Join Date
    Oct 17 2009
    AZ Member #
    49352
    My Garage
    is attached to my house.
    Location
    alonE, Pa

    Wait.. you have a BT but don't like the noise..?
    '00 1.8TQM - Lugtronic GTcougaR
    '02 1.8TQ - Daily sold
    '05 Colorado Z71 Crew Cab
    STEVE

  11. #11
    Veteran Member Four Rings
    Join Date
    Nov 21 2006
    AZ Member #
    13576
    Location
    san francisco, ca

    I just enjoy the sound when wanted. Just like i like to go faster when i want. Its a sacrifice.

    Its sorta like the dude that wants to put the silencers in their fart cans.

    --dillon
    1998.5 A4 2.0TQM ADR/058, Custom ME5 tune by 034, ABA 92.8 stroke forged crank, Scat rods, JE Pistons (83mm/8.5:1), Schrick cams, Supertech springs and retainers, inconel exhaust valves (+1mm), Spa T3 mani with a Precision 5557E-B, 034 3inch exhaust, etc, etc, etc. 034 featured user

    2012 S4 Prestige, Titanium, Monsoon gray metallic, DSG. 034 ECU and TCU tunes and other bits.

  12. #12
    Veteran Member Four Rings walky_talky20's Avatar
    Join Date
    Jun 30 2008
    AZ Member #
    30427
    Location
    Erie, Pennsylvania

    I wish all those dudes would put the silencers in their fart cans.
    ^Don't listen to this guy, he's not even a mechanic.
    2001 Laser Red A4 1.8TQM, 5-Speed Swapped, 4.11 Final Drive, APR 93, 2.5" Exhaust, ST Coilovers, 034 RSB, A8 Brakes Front & Rear
    2006 Passion Red Volvo V50 T5 AWD 6MT
    2000 Satin Silver Passat 1.8T FWD Wagon, Slippy Tiptronic, 15" Hubcaps
    2001 Aluminum Silver Metallic A4 Avant 1.8TQM (winter sled)

  13. #13
    Veteran Member Four Rings Avant Nate's Avatar
    Join Date
    Dec 23 2009
    AZ Member #
    52450
    My Garage
    2001 Audi Allroad 6MT,1999 Yukon Denali, 1987 4Runner
    Location
    Boulder, CO

    Sometimes it just sounds too fast and furious. I do drive a grocery grabber.
    99.5 1.8T QMS: GT2860RS .63 T3, PSI T3 Mani, Turbosmart 38mm EWG, Unitronic 415, Forge 007,Treadstone TR18 FMIC, Walbro e85 450, FSI coil conversion, 3" DIY Magnaflow/Dynomax VT exhaust
    Depo ecodes, DDM slim 6000k, VDO boost gauge, PLX AFR, Greddy profec B EBC,
    H&R sport springs, 034 rear sway, 034 rear diff carrier, A8 fronts,18x8 OZ Superleggera
    Next up E85, efr 7163 or gtx3071r?
    01 allroad 2.7t 6mt, GIAC stage 1

  14. #14
    Veteran Member Four Rings getslideways's Avatar
    Join Date
    May 16 2008
    AZ Member #
    28851
    Location
    WA

    Quote Originally Posted by Seerlah View Post
    lol. Old B5 A4 veteran. How are things on the other side?
    haha I miss my b5a4 brethren!

    The dark side can only be summed up as:



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