 During the European winter, he travelled to New Zealand for the 1978 Peter Stuyvesant International Formula Pacific Series.After teaming up with Sphere Drake Racing, he drove their March-Ford 763/77B, managing just one top sixth finish, on the temporary circuit at Wigram.For rest of the 1978 season, Grob returned to England, joining Ibec Racing Developments Hesketh Team for an assault on the 24 Hours of Le Mans.