Saxo Turbo - Strange noise

  1. #1
    Went to view a saxo turbo,

    at around 4500 rpm + the car makes a very strange noise that can only be described as a Powerdrill on hammer drilling through a brick wall.....


    Any ideas on what could be causing this ?

    Pony cituning turbo setup on a 5th injector mf2 etc...
  2. #2
    Could be hitting fuel cut ?