Dismiss Notice
Hi Guest, stickers are available from our online store.

This N249 bypass mod, FAO all of those who seem to dont understand it..

Discussion in 'Mk1 Leon Guides (1M) 2000-2006' started by leoncupra2012, Apr 6, 2012.

  1. dan23

    dan23 Guest

    oh ok cool now i know how do this, thanks
     
  2. Dudfield

    Dudfield Guest

    well i done this tonight was really easy but i do need some clips at where all the pipes connects looks a bit loose

    not driven the car yet but will find out in the morning
     
  3. dan23

    dan23 Guest

    yep i done mine now but would like to also fit a boost gauge in the car so was wondering how to do it, am i right in saying put another t piece in the bypass and run it into the car then just fit boost gauge
     
  4. Dudfield

    Dudfield Guest

    thats what ive read but im sure someone will be able to confirm that
     
  5. dan23

    dan23 Guest

    k thanks, will wait to hear
     
  6. dan23

    dan23 Guest

    right since doing the by-pass i have noticed that my car warms up very very quickly, like by the time i drive out of the close and 800 yards up the road its already on quarter temp. any ideas ?????
     
  7. aaron-gardner

    Joined:
    Apr 15, 2011
    Messages:
    753
    Likes Received:
    0
    Their I's no reason I can see why the engine I's. Warming up quicker from doing the bypass. You will either get reduced performance or limp mode doing it wrong. You sure you have done it correctly? Also I used a cross piece instead of a t piece for my boost gauge but you could just add another t piece near the other.
     
  8. We need more guides like this! Done it 2day in 15mins. Was a piece of piss and i waa unsure it would make a difference but it boosts smoother and the forge 007p is much more audioable even on a standed air box setup. Thanks again.
     
    #28 dannygoodson123, May 4, 2012
    Last edited by a moderator: May 4, 2012
  9. Tr1ck

    Tr1ck Active Member

    Joined:
    May 13, 2011
    Messages:
    236
    Likes Received:
    0
    number 3. isn't that the rocker cover breather? if so why block this?
     
  10. Nah its the pipe comin off the vacuum box.
     
  11. dazjstuart

    dazjstuart Active Member

    Joined:
    May 18, 2012
    Messages:
    658
    Likes Received:
    7
    Right, I know what to do know and think I understand what the N249s for etc etc. However 1 little question, what do the 2 pipes you block with the bolts actually do, where do they go etc?
     
  12. Matty1986

    Matty1986 Active Member

    Joined:
    Jun 26, 2012
    Messages:
    155
    Likes Received:
    0
    I have just done mine today, took 15mins! Will see what it's like later when I drive home!
     
  13. Marc-H

    Marc-H Active Member

    Joined:
    Jan 15, 2012
    Messages:
    51
    Likes Received:
    0
    Just done mine and was worth it. It didnt take that long to do the job either
     
  14. ashtec

    ashtec Active Member

    Joined:
    Oct 7, 2012
    Messages:
    37
    Likes Received:
    0
    I just got a Leon copra r someone has done this to it in the past. I'm going to convert it back so any one wanting to find a home for there old hoses I'd be happy to do a deal.
     
  15. dandanibiza

    dandanibiza Active Member

    Joined:
    May 7, 2012
    Messages:
    52
    Likes Received:
    0
    Do you only need the t-peice if your running a boost gauge? I've got an fr and i can't see why i Need 2 seperate pipes. I've just got one pipe running from the inlet manifold to the DV?

    Also wanted to ask where everyone puts the n249 and n112 connectors once the resistors are in as mine are resting on top of the engine and getting rather hot

    thanks for any replys.
     
  16. Klone

    Joined:
    Aug 24, 2010
    Messages:
    1,514
    Likes Received:
    1
    Have you got a picture of your setup pal?

    Few people would be grateful, and maybe the OP could inlcude that pic in his post.
     
  17. admasiv

    admasiv Guest

    great thread did it to mine today how easy only thing is after doing it ive noticed a very slight flutter and mean slight is this normal?
     
  18. Molehill_Mike

    Molehill_Mike Rollin' on 20s

    Joined:
    Jan 3, 2005
    Messages:
    2,567
    Likes Received:
    0
    Thansk to OP, used this at the weekend. Even with a B&W print :)

    Only difference for me was I used 3mm not 4mm as I had shed loads in the garage.

    Top stuff :D
     
    #38 Molehill_Mike, Nov 12, 2012
    Last edited: Nov 12, 2012
  19. jamski

    jamski Active Member

    Joined:
    May 23, 2012
    Messages:
    57
    Likes Received:
    0
    Done this today easy job car feels a lot smoother
    Thanks to the OP
     
  20. Dejavoo

    Dejavoo Guest

    Just done this, thanks OP although my brain couldnt work out the whole t piece thing for a while and then it all clicked lol :)
     

Share This Page