Full Breakdown
JCB Hydromax Sets New FIA Land-Speed Record for Hydrogen-Combustion Vehicles
8/14/2026, 7:45:12 PM
Record-Breaking Run at Bonneville
On 11 August 2026 the JCB Hydromax, a 32-foot streamliner powered by two hydrogen-burning internal-combustion engines, completed the FIA-mandated runs at the Bonneville Salt Flats. The vehicle recorded runs of 400.623 mph and 412.135 mph, yielding an official average of 406.320 mph (653.909 km/h). The Fédération Internationale de l’Automobile (FIA) confirmed the result as the world land-speed record for hydrogen-combustion cars, surpassing the previous 185.5 mph benchmark set by the BMW H2R in 2004.
Background & Context
JCB launched a £100 million hydrogen-engine programme in 2021 to develop powertrains that run on hydrogen instead of diesel. The Hydromax project began in February 2025, repurposing 4.8-litre four-cylinder engines used in the company’s excavators. The design builds on the 2006 JCB Dieselmax effort, which held the diesel land-speed record of 350.092 mph for two decades. The attempt took place during Bonneville Speed Week, a historic venue for high-speed runs since 1912.
Data & Statistics
| Metric | Figure |
|---|---|
| Record-average speed | 406.320 mph (653.909 km/h) |
| Engine output | 1,600 bhp (? 1,193 kW) combined |
| Hydrogen consumption per run | just over 2 kg (? 4.4 lb) |
| Water produced per run | ~18 L (? 5 gal) |
| Cooling requirement | ~250 kg of ice per tank, two tanks per run |
Official Statements & Responses
- FIA President Mohammed Ben Sulayem called the achievement a “historic milestone” for motorsport, highlighting high-performance, zero-carbon technology on a world-record stage.
- JCB’s engineering team noted that hydrogen combustion emits only water at the tailpipe, though nitrogen-oxide formation remains possible at high temperatures.
- The FIA ratified the record under Category A, Group XIV, Class 7 regulations, confirming the two opposite-direction runs were completed within the required one-hour window.
Verbatim Quotes
- “Twenty years ago we came to Bonneville with JCB Dieselmax and showed what British engineering could do with diesel power.” — JCB Chairman Anthony Bamford
- “Article continues below ADVERTISEMENT Article continues below ADVERTISEMENT Green said: “Bonneville is the spiritual home of the world land speed record, and JCB Hydromax has just written itself into that history.” — Wing Commander Andy Green
- “The ground comes at you very, very quickly,” — Andy Green
Impact & Significance
The Hydromax record shows hydrogen combustion can match the power density of fossil-fuel engines while eliminating CO2 emissions at the point of use. By adapting engines already in production for construction machinery, JCB offers a pathway for heavy-equipment makers to transition to low-carbon operation without large battery packs. The achievement also expands the new “hydrogen racing” class at Bonneville Speed Week, encouraging further investment in hydrogen-based propulsion across automotive and industrial sectors.
Conflicting Reports & Gaps
All outlets report the same average speed of 406.320 mph and agree the FIA has confirmed the record. Public data on long-term durability of hydrogen-combustion engines in heavy-equipment service remains limited, representing an area for future study.
