None/ low boosting soarer.

Thread in 'Technical Questions' started by chri5, Nov 20, 2015.

  1. chri5

    chri5 Active Member

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    I bought a twin turbo soarer not long ago.
    N reg 1995 model.
    Everything was going great. Lots of power and boost creating lots of smoke from the tyres when I wanted etc ;)
    Then after some playing around the next day I went out and no boost.
    Car drives ok but obviously seriously slow. But can get it over national speed limit.
    Been looked at as much as I can and found

    Actuators hold vacuum, no noise from turbo, no boost leaks, no plumes of smoke.
    Car can't break traction and feels like when setting off its in "snow" mode.
    Turning traction control off makes no difference either.
    Mechanic doesn't think it's mechanical but maybe electrical??
    Don't have much time at the moment as busy working away every other week etc but hoping somebody may know??
    Thanks in advance
     
  2. Swampy442

    Swampy442 Active Member

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    Are you 100% sure theres no boost leaks? Do you have a boost gauge, if so what figures are you getting? Ive had a pipe pop off before and the msot boost you ever saw was 0.
     
  3. chri5

    chri5 Active Member

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    A couple of people have looked and said it don't appear to have leaks.
    There is no gauge yet. I shall get 1 to see where I stand with it
     
  4. Swampy442

    Swampy442 Active Member

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    Ill pretty much guarantee its a pipe off somewhere. If it was something serious electrical you'd no doubt get a warning. Pulled the error codes?
     
  5. chri5

    chri5 Active Member

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    Wouldn't you here it??
    There's no warning lights showing.
    Not been able to get codes.
     
  6. Swampy442

    Swampy442 Active Member

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    Id hope so! Maybe you've been unfortunate enough to suffer twin ceramic turbine failure? Very, very rare.
    But basics first, go over all the pipework, ALL of it, even the stuff that cant be seen. If the timing had slipped you'd still expect to get some boost.
    Failing that get a boroscope up the exhaust and inspect the turbines.
     
  7. chri5

    chri5 Active Member

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    Pipe work has been gone over.
    Somebody said it sounds like rear turbo could of gone due to heat??
    I think it's getting some boost. But probably less than half than it had.
    Not got a boroscope so will have to do it the old fashioned way lol.

    If timing had slipped would it still run like it does??
    It runs and revs 100%. It's only when you put drive that there's nothing.
     
  8. chri5

    chri5 Active Member

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    Just put a boost gauge on and there's no boost :(
    Vacuum is at around 20psi
    When driving it sits bang on zero
     

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