Ford Mustang GTD Dyno Run Reveals How Much HP It Really Makes

Why It Matters

The verified wheel‑horsepower figures validate the GTD’s claim as the most powerful factory Mustang, influencing buyer expectations and setting a new benchmark for high‑performance street cars.

Key Takeaways

• GTD delivers 753 wheel horsepower on dyno
• Drivetrain loss measured at roughly 8%
• Engine rated 815 hp at crank, 815 hp claim
• Multiple dyno runs confirm consistent power output
• Eight‑speed transaxle and rear tires handle power efficiently

Pulse Analysis

The 2025 Ford Mustang GTD represents a decisive shift in the brand’s performance strategy, pairing a 5.2‑liter V8 with an eight‑speed transaxle to produce a factory‑rated 815 hp at the crank. While manufacturers typically quote crank numbers, enthusiasts and potential buyers care about the power that actually reaches the pavement. Recent dyno testing by Late Model Restoration, a specialist shop with deep Mustang expertise, captured the GTD’s output under real‑world conditions, providing a transparent look at its true performance.

On two consecutive passes, the GTD posted 740 whp and 753 whp, with torque peaking near 609 lb‑ft. These figures translate to an approximate 8% drivetrain loss—a notable improvement over the conventional 15% loss seen in many high‑output vehicles. The low loss is attributed to the efficient eight‑speed transaxle and the high‑grip Michelin Pilot Sport Cup 2 R tires, which together preserve a larger share of engine power for acceleration. Consistency across multiple YouTube dyno videos reinforces the reliability of these measurements, dispelling doubts about manufacturer underselling or overstating figures.

For the broader market, the GTD’s verified wheel horsepower sets a new performance ceiling for street‑legal Mustangs, challenging rivals in the American muscle segment. Tuners and aftermarket parts suppliers can now benchmark their upgrades against a proven 750‑plus whp platform, while consumers gain confidence that the advertised power is not merely theoretical. As Ford continues to push the envelope with factory‑installed power, the GTD’s dyno results may influence future model development, encouraging even tighter drivetrain efficiencies and more transparent performance reporting across the industry.