User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 6 of 6

Thread: Exhaust Question....

  1. #1
    Regular Member joules2.0t's Avatar
    Join Date
    Aug 2005
    Location
    surrey
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats


    Trim : SRI


    Year : 53

    Default Exhaust Question....

    This is sort of related to the stage 3 BSR remap.

    I have done some research and the cat attached to the stage 3 down pipe is a 400cpsi unit (400-600 I believe is the same as an OEM cat).

    My question is this:

    If the 400cpsi cat is replaced with a true sports cat, (in the case of ODBII we should use a 200cpsi cat) would this drop the back pressure too much and nause up the BSR (or any remap) come to that and actually loose power?

    Also what is the standard diameter of the OEM exhaust as the BSR downpipe terminates in a 2.5" diameter?

    Cheers

  2. #2
    Regular Member rickyroo's Avatar
    Join Date
    Sep 2006
    Location
    shropshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    The answer is yes mate I have sports exhaust system on my edition 100, and popping from exhaust as low back pressure.

  3. #3
    Regular Member joules2.0t's Avatar
    Join Date
    Aug 2005
    Location
    surrey
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats


    Trim : SRI


    Year : 53

    Default

    Thanks for reply mate. Much Appreciated.

  4. #4
    Regular Member rickyroo's Avatar
    Join Date
    Sep 2006
    Location
    shropshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    it would be interesting to find out who has changed their exhaust on 2.0t like me and has "popping" or backfire isuses due to pressure, maybe wait until people buy bsr stage 3 and see if they get the same issues.

    Been told it's all down to an angle of metal or preforming within the oem exhaust that creates additional back prerssure and when it's swapped for custom exhaust the first 3000 miles or so no problem then when it's worn in a little the pressure is lost as no angle in pipe if that makes sence.

  5. #5
    Regular Member joules2.0t's Avatar
    Join Date
    Aug 2005
    Location
    surrey
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats


    Trim : SRI


    Year : 53

    Default

    Maybe that is why BSR use an OEM cat, due to pressure equalisation? Have you still got the original cat to put back on?

    You might need something extra to link it up to your new exhaust system.
    Is the new system a 2.5" bore?

  6. #6
    Regular Member rickyroo's Avatar
    Join Date
    Sep 2006
    Location
    shropshire
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    The oem cat is still on mate, only had from flexi back ,after the cat.
    Defo the exhaust creating popping.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Exhaust question.......
    By adamtaylor in forum Engine & Drivetrain
    Replies: 21
    Last Post: 2nd October 2012, 23:24
  2. Exhaust Question
    By RichieSRi in forum Tuning
    Replies: 4
    Last Post: 24th January 2011, 10:29
  3. Another exhaust question
    By MattW74 in forum Petrol Engine related
    Replies: 1
    Last Post: 28th July 2010, 09:43
  4. exhaust question
    By andy_hare in forum Engine & Drivetrain
    Replies: 12
    Last Post: 9th April 2010, 15:06
  5. 2.2 dti exhaust question
    By Keithy in forum Engine & Drivetrain
    Replies: 1
    Last Post: 17th February 2009, 20:14

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •