Results 1 to 3 of 3

Thread: gsi - 5000 revs turbo drops pressure

  
  1. #1
    Status
    Offline
    EnnsGsi's Avatar
    AOC Newbie
    Join Date
    Jun 2009
    Posts
    58
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)

    gsi - 5000 revs turbo drops pressure

    hi all. just after a bit of help/advice. my car has been running fine until i brought courtneys silicon hose which gets rid of the crossover pipe etc,
    http://www.courtenaysport.co.uk/inde...&productId=515
    i fitted it with my standard afm (wrapped tap around it to make up the 10mm difference) no leaks come from it altho obviously it was a small bodge just to use it until i buy a vxr one and get it remapped. since ive fitted it my car boosts up fine in every gear but as soon as it hits 5000 revs the turbo literally turns off with no fault lights just goes back to 0 on the boost gauge and no turbo running it seems but then does same agen in the next gear.

    My thoughts are that my afm has given up the goose? Or if it just cant take the amount of air being sucked in at that amount of revs?

    Or maybe my dumpvalve is some how faulty? (altho its a long shot as i think its dumping fine)

    I also seem to get alot of chattering when boosting i can hear it boosting all the time quite loud.

    im going to put all the old crossover back on and try it again just wondered if anybody had any ideas?

    thanks very much!

  2. #2
    Status
    Offline
    EnnsGsi's Avatar
    AOC Newbie
    Join Date
    Jun 2009
    Posts
    58
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    forgot to add when i pulled up in traffic i thought it was running a bit lumpy, not a constant low idle it was a bit jerky

  3. #3
    Status
    Offline
    aussiegman's Avatar
    AOC Fanatic
    Join Date
    Jul 2006
    Posts
    801
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    It certainly sounds like your going to find a pressure drop somewhere....

Similar Threads

  1. Car drops revs when reversing normal or problem?
    By Astra ocd in forum NA Engines (Non-turbo petrol) inc. Transmissions
    Replies: 2
    Last Post: 11-06-2013, 14:45
  2. Drops Revs And Sometimes Stalls When Dipping Clutch :(
    By ro88y in forum NA Engines (Non-turbo petrol) inc. Transmissions
    Replies: 14
    Last Post: 24-11-2010, 18:15

Posting Permissions

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