The factory Ford team today announced the discovery of an engine issue that it says has been hampering an out-of-form Brown. “The component was loaned by Supercars to Triple Eight Race Engineering (T8RE) for demonstration purposes only at the team’s launch in February. “The air restrictor subsequently remained fitted to Car 888 through the Perth Super 440. “Throughout the Supercars season, routine scrutineering and compliance checks are carried out at random by Supercars’ Technical department, covering a vast range of components and systems. “As of the Perth event, the air restrictor fitted to car 888 had not been selected for inspection during those checks.