After just turning 28, Torph and his co-driver Bertil-Rune Rehnfeldt died while spectating the 1989 Monte Carlo Rally, after Lancia driver Alex Fiorio lost control of his Delta Integrale and crashed into them.

He took his Toyota Celica TCT to second place at the endurance events Safari Rally and Rallye Côte d'Ivoire, losing the wins to compatriot and teammate Björn Waldegård.

[1] With a factory Toyota Supra 3.0i, he finished third at the Safari Rally behind Audi Sport's Hannu Mikkola and Walter Röhrl, despite a fever that lasted almost the duration of the event.

[4] On the second day of the Rallye Côte d'Ivoire, Toyota's Cessna 340 aircraft crashed down and exploded, killing manager Henry Liddon, his assistant Nigel Harris, the pilot and the navigator.

In Sweden, driving a privateer Audi Coupé Quattro, he took his fourth podium place finishing behind Markku Alén and Stig Blomqvist.