Field Report: You'll NEVER Guess This Connection — 11,000 rpm V10 Supra Vs Ford Explorer.

Tuned In

'Why fit a Formula 1-inspired Judd V10 engine into a Toyota A90 Supra' is probably not a common question we are all struggling with regarding our own personal projects. Still, we love that people like Ryan Tuerck can answer it for us!
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This 4L 730hp (630hp ATW), 11,000 rpm capable Judd V10 powered 'Formula Supra' was at World Time Attack, and if you didn't see the car, you certainly heard it on song from all corners during its exhibition laps with Ryan Tuerck at the wheel. But how did the build come about, and what makes it tick?
Before falling into Ryan's hands (while fistfuls of cash fell out of them in exchange), the Judd GV4 V10 itself was a spare for an old Benetton Formula 1 car (an everyday use case) and thanks to Ryan's solid relationship with Toyota, it found itself not at home in an A90 Toyota Supra chassis sporting a MoTeC electronics package and tuning from John Reed Racing including the venerable M150 ECU and PDM30 which help put the power to the ground through aa Hollinger RD6 sequential gearbox. Interestingly, a Ford Explorer 8.8 rear differential was chosen for its range of ratio options and lightweight compared to the usual Winter Quick Change rear end thanks to fabrication pro Dominic Biro.
A lightweight Tilton Engineering 4 plate carbon clutch helps combat a thrust bearing design that doesn't suit drifting (LMP1 endurance cars only use their clutch to get the vehicle moving), with other help from Judd coming in the form of detailed manuals that cover the life expectancy of every party on the engine down to the exhaust manifold for ultimate reliability in an engine that was ultimately built to be hammered on for 24hours straight.

Chapters

1. Ryan Turk's V10 Powered Supra (00:00:00)

2. Racing Engine Development and Challenges (00:08:47)

3. Getting a Rundown on a Car (00:14:21)