Editing Triumph slant-four engine (section)

==Motorsports==
The 16-valve Sprint engine was raced in [[Fédération Internationale de l'Automobile|FIA]] Group 1 and Group 2 in Dolomite Sprints prepared by Leyland Special Tuning at Abingdon.<ref name="valebook"/>{{rp|119–128}} Their first season was 1974, but no finishes were achieved that year. In 1975 the engines received larger carburettors and a revised camshaft. With these changes they completed their first event at the Mintex Rally in 7th place. This was followed by a 2nd place in the Avon Tour of Britain and a 3rd at the Lindisfarne Rally. At the [[Wales Rally GB|Lombard RAC Rally]] the Dolomite Sprint won the 2-litre class and Group 1 outright and placed 16th overall. For 1976 focus had shifted to the TR7, originally with the Sprint engine but by 1978 all efforts were focused on the TR8.

The private [[Broadspeed]] team headed by Ralph Broad did extensive development on the Sprint engine, bringing power up to a claimed {{cvt|174|bhp|kW|1}}. Sprint-powered Broadspeed cars won the Manufacturer's Championship in 1974 and took the driver's title in 1975. In 1976 the cars took 2nd in the 2-litre class, and won again in 1978.

The Sprint engine also appeared in [[Formula Three]], in [[Anson Cars]] and [[March Engineering]] chassis. The Sprint-powered March placed 8th in the 1976 season. In 1979 two March cars driven by [[Nigel Mansell]] and Brett Riley finished 5th and 8th in the F3 championship and each driver won one race in the [[British Formula 3 International Series|Vandervell British F3 Championship]].