Monster MotorsportVolks Autos
Results 1 to 19 of 19
  1. #1
    paulsaudi's Avatar
    Neutral

    Status
    Offline
    Join Date
    Jun 2011
    Posts
    71

    N249 BYPASS YES OR NO???

    Hi,

    I have 2001 AMK S3

    Should i do the N249 bypass??? is it much better/smoother etc??

    Ive heard it messes with the traction control??

    My friend also has S3 and he said that the traction has saved him many many times!!!!

    Will traction still work with this mod??

    Also just to clear it up, to do the mod just run 4mm hose from inlet all the way to the top of factory DV and leave N249 plugged in to stop dash lights etc?

    you opinions please............

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    dplovin's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Jan 2011
    Location
    cheshire
    Posts
    359
    ive done the bypass mate never had any problems witn traction or anything for that matter, car felt a little more responsive and got rid of a boost leak, clears up alot of mess aswell all that vac chamber and stuff. theres one or two guides on here how to do it.

  4. #3
    Syvo's Avatar
    IF IN DOUBT GO FLAT OUT

    Status
    Offline
    Join Date
    Jan 2011
    Location
    warrington
    Posts
    1,337
    good idea to remove results in less boost leaks.
    also the traction will not be affected.
    yeh just 4mm vac hose
    leave n249 connected electrically
    run pipe form top of dv tee into inlet manifold run the rest of pipe to the n112
    run a second pipe from other side of n112 to sai
    job done







  5. #4
    1st Gear

    Status
    Offline
    Join Date
    Sep 2005
    Location
    Derbyshire
    Posts
    180
    Easiest job in the world to do and the throttle feels more connected to the engine afterwards. Well worthwile for a quids worth of pipe.

  6. #5
    Sandip's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Nov 2006
    Location
    Greater Manchester
    Posts
    2,379
    Quote Originally Posted by Syvo View Post
    run pipe form top of dv tee into inlet manifold run the rest of pipe to the n112
    run a second pipe from other side of n112 to sai
    job done
    No SAI on AMK's lol
    3.2 V6 with Custom Code VVT Attack Software


  7. #6
    SiGainey's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Sep 2003
    Location
    North Wales
    Posts
    475
    I'm a believer in leaving it as Audi designed it but did the n249 delete last weekend and it's definitely all positive... On an AMK as it happens...
    '01 AMK, completely standard except for the Ambient Lighting Pack.

  8. #7
    G60DAN's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Feb 2010
    Location
    Cornwall
    Posts
    321
    I have an AMK it's so easy to do and works fine no probs.

  9. #8
    Chugger

    Status
    Offline
    Join Date
    Nov 2009
    Location
    North Devon
    Posts
    2,716
    Same, iv got an AMK and nothing negative has resulted
    57 A3 2.0 TDI Sportback (140)

  10. #9
    s3dave's Avatar
    TFSI Hybrid

    Status
    Offline
    Join Date
    Nov 2009
    Location
    west yorks
    Posts
    10,121
    If you are worried about it, dont do it, there is plenty of info on here with zero negatives...you must have read something to know about it?

  11. #10
    Speedy Steve's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Nov 2008
    Location
    Leicester
    Posts
    1,246
    Just do it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    Ive been Badger 5'd

    Can we break the magic 300?????? In a word Yes 314 BHP 249 lbft at Badger 5

    Quote Originally Posted by badger5 View Post
    steves is way quicker than any stock turbo'd s3 i have driven
    I only date skinny Women! They keep my power to weight higher...

  12. #11
    paulsaudi's Avatar
    Neutral

    Status
    Offline
    Join Date
    Jun 2011
    Posts
    71
    Right i have decided..........i am going to do it!!!!

    So with my AMK engine just run 4mm hose from top of DV to inlet???

    Thanks for comments guys ; )

  13. #12
    SiGainey's Avatar
    2nd Gear

    Status
    Offline
    Join Date
    Sep 2003
    Location
    North Wales
    Posts
    475
    Yup, leave the valve connected electronically and just run from inlet to dv. 1m of 4mm ID hose required.
    '01 AMK, completely standard except for the Ambient Lighting Pack.

  14. #13
    Chlippo's Avatar
    3rd Gear

    Status
    Offline
    Join Date
    Apr 2010
    Location
    Canada/USA/Lebanon
    Posts
    666
    and let us know what you think (maybe take a couple of pictures too)
    Audi S3 AMK
    Relentless-Manifold, Relentless-3" downpipe decat, Forge 007 DV, autobahn88 TIP, K&N Panel filter, EBC yellowstuff brake pads, R32 ARB, Custom column dual gauge pod...waiting for a remap!

    For help/info/pricing on xs manifold and downpipe pm me (not affiliated, nor a reseller trader, just an enthusiast!)

  15. #14
    Sam_'s Avatar
    Down under

    Status
    Offline
    Join Date
    Mar 2011
    Location
    Sydney, Australia
    Posts
    2,783
    I done it. No complaints. If anything, it ran better. With cars of this age and producing the heat they do, there's bound to be a leak in all that extra kak.
    Handling mods++. HTA3582 stroker soon-ish. Hiding parts from the mrs since 2011. Build thread

  16. #15
    Prawn's Avatar
    My other car is a MINI!!!!

    Status
    Offline
    Join Date
    Dec 2006
    Location
    Basingstoke
    Posts
    9,357
    There's really no reason not to do the n249 bypass on these. The only time you hear problems is when people have done it wrong!

    On cars with the SAI you need to make sure it's still plumbed in correctly, and part of that is refitting a check valve many people leave out, which stops the n112 seeing boost.

    I recently bypassed my n112 totally as well, and I've not had any problems at all with it
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  17. #16
    S3featesV9's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Dec 2010
    Location
    Oxford
    Posts
    1,030
    how easy is this to do on a BAM? all i need is a 1meter piece of 4mm hose? ive looked at a thread showing how to do it. looks confusing. maybe it isnt though. and im a mechanic :S

    Cheers

  18. #17
    1st Gear

    Status
    Offline
    Join Date
    Apr 2009
    Location
    Preston
    Posts
    245
    Can you essencially bin all the unwanted / needed plumbing + pipes that are no longer needed *after by-passing the spagetti junction* on top of the head? Will I need this again?

    Just one pipe from top of the DV to the one that comes out of the Inlet Manifiold?




    What reason is the N249 there? To monitor boost?

  19. #18
    s3dave's Avatar
    TFSI Hybrid

    Status
    Offline
    Join Date
    Nov 2009
    Location
    west yorks
    Posts
    10,121
    Quote Originally Posted by Prawn View Post
    There's really no reason not to do the n249 bypass on these. The only time you hear problems is when people have done it wrong!

    On cars with the SAI you need to make sure it's still plumbed in correctly, and part of that is refitting a check valve many people leave out, which stops the n112 seeing boost.

    I recently bypassed my n112 totally as well, and I've not had any problems at all with it
    Check valve...lol...Where?

  20. #19
    Welly's Avatar
    VX220 SC Driver :)

    Status
    Offline
    Join Date
    Aug 2009
    Location
    Gloucestershire
    Posts
    10,695
    ------------------------------------------------------------------------------------------
    "Marriage is like a coffin and each kid is another nail."
    Homer Simpson





 

 

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