Swindon Powertrain to compete in the 2026 Repco Supercars Championshiptoyotahas been appointed as the official engine partner of Walkinshaw TWG Racing in its debut project.
The British company will be responsible for developing and supplying key components for the new Toyota GR Supra GEN3, which will make its first full season appearance on the Australian grid.
The program is scheduled to last five years and is already off to a strong start. Starting in 2026, at least five cars equipped with Toyota engines will participate in the championship. The collaboration between Swindon Powertrain and Walkinshaw TWG Racing has been in the works for around a year, with the project officially announced.
Development focused on performance and durability
Swindon Powertrain is leading the development engine design, simulation and production process, as well as producing critical components such as the crankshaft assembly. Final assembly and ongoing maintenance of the race engines will be carried out at Walkinshaw TWG Racing’s facility in Clayton, Victoria, Australia.
The base of the project was chosen as the well-regarded 2UR-GSE V8 engine, which is made entirely of aluminum and uses DOHC.Lexus LC 500It is also widely used in models such as By expanding the displacement to 5.2 liters, 5.0 to 5.7 liters will be accepted.super carsnaturally conforms to the provisions of
Swindon Powertrain managing director Raphael Cahier says the square engine configuration, with a bore and stroke of 94 x 94 mm, is the ideal basis for a unit that is both competitive and reliable and capable of delivering around 600 horsepower.
Over 12,000km per season
One of the biggest challenges in this project was balancing performance, durability, and cost. Supercars’ annual calendar covers more than 12,000km per season and includes grueling events such as the Bathurst 1000, known for its long straights of 1.19 miles.
To meet these demands, Swindon Powertrain focused on improving the crankshaft, valvetrain, combustion and calibration, while also leveraging the robustness of Toyota’s production engines. As a result, it is now possible to use many mass-produced parts, such as the cylinder head, engine block, main cap, timing chain, and valve followers, which also leads to lower costs.
The 2026 engine will also feature hydraulic variable valve timing (VVT) and a 3D-printed intake system, a technology already proven in Swindon’s British Touring Car Championship-winning engine.
Debut on the grid is coming soon
Walkinshaw TWG Racingwill field two Toyota GR Supra GEN3s driven by Chaz Mostert and Ryan Wood. In addition, Brad Jones Racing will be in charge of three cars, completing Toyota’s initial participation structure.
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Source/Image: Swindon Powertrain. This content was created with the assistance of AI and reviewed by our editorial team.
