Monster MotorsportAH Fabrications
Results 1 to 6 of 6
Like Tree3Likes
  • 2 Post By s33nyboy12
  • 1 Post By Blackcupraa

Thread: Funny sounding turbo

  1. #1
    1st Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    Derbyshire
    Posts
    180

    Funny sounding turbo

    Hi guys,

    1999 S3 (APY 210).

    Strange one for you. So I was out today having a drive, enjoying the weather, the views etc. Got on my local dual carriageway and accelerated in 6th from 3000rpm, when I did so the turbo didn't "sound" how it should do, instead of a shhhhhhhhhhh (like they all do, it was more of a shhh shhh shh shhhh shhhh shhhh, for 1/2 - 1 second then normal sounding boost. This wasn't full throttle acceleration btw, something like 1/2 throttle or so.

    Now this only happens when I have a passenger in the car, normally a lady who's a size 10, so no fatty, but when i'm alone it sounds normal.

    Vagcom comes up all clear, does this sound like a boost leak or something much more sinister?

    Any ideas?

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    s33nyboy12's Avatar
    5th Gear

    Status
    Offline
    Join Date
    May 2012
    Location
    East midlands
    Posts
    1,278
    Lol!

    get a fatty in the passenger seat see if it makes any difference lmao!

    I love the extra info you gave there.....

    Sean
    Blackcupraa and Sandra like this.
    Current: 2013 Audi A3 2.0 tdi s line 8V in black SD nav+ extras, E46 BMW M3, 1971 Volvo p1800, 2014 Ford transit sport 155ps ;-)

    Previous : Focus st 225 stage 1 (265 bhp and too much torque), 2002 audi s3 bam engine completely OEM, 2001 Audi a3 1.8 TQS 221bhp and about 20 other cars, majority civics ek4/ek9 and Bmw / Audi soot chucker's!

  4. #3
    <tuffty/>'s Avatar
    Badger 5 Edition

    Status
    Offline
    Join Date
    Sep 2008
    Location
    Gloucestershire
    Posts
    15,016
    Sounds like a little compressor surge... warmer weather combined with a heavy loading (accelerating from 3k in 6th loads more than choosing a more appropriate gear) will bring this on... if you had changed to 5th or 4th it most likely wouldn't have happened... in warmer weather the ECU requests more boost to meet load request due to less dense warmer air..

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  5. #4
    1st Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    Derbyshire
    Posts
    180
    I failed to add something.

    It happened 2 weeks ago, with the same passenger may I add, in 4th gear at roughly the same RPM. I shrugged it off at the time as I very rarely have passengers.

    Just as an FYI cars spec is, B5 V3 TIP, Jetex, 007p, SAI, N249, N112 removed and resistored, Custom Code stage 1 (generic).

    So the fix is 2 fold, 1, get a size 8 passenger and 2, stop being lazy?
    s33nyboy12 likes this.

  6. #5
    jojo's Avatar
    S3 Drift King!

    Status
    Offline
    Join Date
    Sep 2003
    Location
    Solihull, Midlands
    Posts
    24,833
    I had this on mine, I thought it was turbo flutter, replaced my N75 for a new one, and all is good. My spec is AmD stage1 remap, Badger5 3" V1.5 with Jetex, and Samco Boost hoses.


    99' Audi S3(APY) - Brilliant Black Click>>>Going Sideways vid!
    You've got to have a laugh!



  7. #6
    1st Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    Derbyshire
    Posts
    180
    Good thinking Jo, will give it a try

 

 

Similar Threads

  1. dump valve makes a funny sound off boost !
    By jonno123 in forum A3/S3 Forum (8L Chassis)
    Replies: 6
    Last Post: 22nd February 2013, 21:07
  2. Flutter sound...turbo?
    By mikeyw in forum Audi S4/A4/A4 Cab (B7 Chassis)
    Replies: 4
    Last Post: 17th October 2011, 14:18
  3. funny sound on shutdown....
    By fARQUARE in forum A4/S4 forum(B5 Chassis)
    Replies: 2
    Last Post: 24th August 2010, 14:23
  4. funny sound under my s3
    By m.dub in forum A3/S3 Forum (8L Chassis)
    Replies: 5
    Last Post: 19th July 2009, 15:37
  5. strange sounding dump valve A4 1.8 turbo sport
    By philS2 in forum A4/S4 forum(B5 Chassis)
    Replies: 4
    Last Post: 4th May 2007, 10:26

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO