Get ready for an exciting revelation! The Toyota V8 Supercars engine, a powerhouse in the making, has been unveiled by a UK-based firm, and it's a story that's sure to spark some heated debates.
Last year, Speedcafe dropped a bombshell when they revealed that Swindon, a renowned engine partner, was chosen by Toyota's Supercars homologation team, now known as Walkinshaw TWG Racing, to bring their vision to life. The connection? Well, it all ties back to Carl Faux, the mastermind behind the Gen3 Toyota project and team principal at Walkinshaw, who previously crossed paths with Raphaël Cailléat, the boss of Swindon, during their time together at Triple Eight in the UK.
But here's where it gets controversial... Toyota has opted for a 5.2-litre version of their all-aluminium, quad-cam 2UR-GSE engine for the Supra, a decision that has Supercars requiring them to stay within a specific 5.0 to 5.7-litre window. Caillé, the man behind the scenes, believes that the engine's architecture, with its impressive 94x94 bore and stroke, provides an excellent foundation for a competitive and durable power unit capable of achieving 600bhp.
Swindon has taken the lead in developing, simulating, and producing these engines, with a particular focus on the crank train and valvetrain hardware. They've utilized OE parts, including the cylinder head, block, main caps, timing chain, and followers, and even incorporated a hydraulic variable valve timing (VVT) system and a 3D-printed inlet tract into the Supra engine.
The final assembly and ongoing maintenance of these race engines will be handled by Walkinshaw at their facility in Clayton, Victoria. But amidst all the excitement, there are swirling questions about the engine's performance and its readiness for the 2026 season.
Five Supras are set to hit the tracks, with two from Walkinshaw TWG and three from the customer team Brad Jones Racing, kicking off the championship on February 20-22. However, Jones recently revealed that his team only has a 'dummy' engine at their disposal, highlighting the tight timelines they're facing to get their cars ready.
Track testing of Walkinshaw's first Supra, fitted with a mule engine, began last September, and Supercars has been putting a 'production version' through its paces on their dyno in recent weeks. Tim Edwards, the motorsport boss at Supercars, has downplayed concerns about balancing the performance of the new Toyota with the incumbents, noting the similarities between the Toyota's architecture and Ford's Coyote V8.
While the Supercars schedule demands around five times the mileage compared to the BTCC, Caillé and the Swindon team aren't taking the Australian series lightly. They understand the challenge they face against established engine producers with experience in the Gen3 regulations.
And this is the part most people miss... Toyota will be facing off against their rivals in parity tests at Bathurst and Ipswich. Caillé described the collaboration as fantastic, highlighting how the time zone difference allowed them to work around the clock.
"We respect the job they are doing, and now it's up to us to learn, develop, and bring our best efforts to the track. We won't be satisfied until we start winning," Caillé said.
Walkinshaw is set to put their second Supra through its paces on Monday at Queensland Raceway, where Supercars will also have a Mustang and Camaro on track for comparison. Caillé attended the Townsville 500 last July, and Swindon will have Sylvain Rubio trackside for the opening events of the 2026 season.
This Toyota project isn't Caillé's first rodeo in Supercars. His time at Triple Eight included involvement in the ill-fated 2004 V8 engine project, which was run in collaboration with the French firm Sodemo.
Swindon's current motorsport projects include the 2025-title-winning Hyundai BTCC engine, showcasing their expertise in design, simulation, and manufacturing across various automotive applications.
So, what do you think? Will the Toyota V8 Supercars engine live up to the hype? Or is this a case of overpromising and under-delivering? Let's discuss in the comments and share your thoughts on this exciting development!
