Internal combustion engines are far from obsolete, and automakers are reinvesting in their development despite the push toward electric vehicles. Recent innovations prove that combustion technology still has room for improvement, with companies like Boreham Motorworks pushing boundaries in performance and efficiency.
Boreham’s Ten-K Engine: Power and Precision
Boreham Motorworks recently unveiled its 2.1-liter, naturally aspirated four-cylinder engine, dubbed the “Ten-K” for its 10,000 rpm redline. This engine produces 324 horsepower while weighing just 187 pounds, making it exceptionally lightweight compared to similar engines. The Ten-K will power the reborn Ford Escort Mk1 RS, combining classic design with modern engineering.
Key features include individual throttle bodies, a belt-driven twin cam, and lightweight billet components, including the crank, rods, cradle, dry sump, and cam cover. The engine also incorporates Formula 1-inspired port geometry and modern electronics for optimal performance.
Innovative Manufacturing: 3D-Printed Casting
Boreham Motorworks saved weight by utilizing thin-wall 3D-printed casting technology. This allows for a sculpted engine block closely fitted around internal components, maximizing strength while minimizing mass. The engine is currently undergoing dyno testing and calibration, with early results already exceeding performance goals.
Thermal Efficiency Gains
Other companies are also pushing combustion boundaries. Omoda & Jaecoo recently introduced an engine with 48 percent thermal efficiency, which could reduce fuel consumption by roughly 2.5 percent. Horse Powertrain has also introduced range extenders that operate on both gasoline and liquid petroleum.
Combustion’s Continued Relevance
Despite earlier promises to shift entirely toward battery-electric vehicles, automakers are recommitting to combustion engines. Adoption of electric vehicles has been inconsistent, and manufacturers are responding to consumer demand. The combustion engine continues to dominate the market, and innovative designs like the Boreham Ten-K demonstrate its enduring potential.
The future of automotive power remains diverse, with combustion engines playing a critical role for years to come
