The Future of Performance
DUETEC is a digitally and hybrid-native, multi-fuel-ready, boosted two-stroke engine platform rated at 500+hp/L, 10+hp/kg, and up to 60% thermal efficiency. It is the ultimate fusion of select lab-proven technologies, unlocking unprecedented downsizing potential.
V4 is the new V8
Building on a “boostable” two-stroke architecture, DUETEC matches the firing frequency and output potential of turbo- or supercharged four-stroke engines twice the displacement and cylinder count. In practical terms: a DUETEC V4 replaces a conventional turbo V8, delivering a comparable acoustic and dynamic signature at a fraction of the mass and mechanical complexity.
The DUETEC V4 K1 shown below is an integrated hybrid unit displacing 1440 cc, revving to 11,000rpm, and producing a conservative 750hp from combustion. Total hybrid system output exceeds 1000hp and 900Nm at under 90 kg combined system mass.
“Boostable” Two-Stroke Architecture
In conventional boosted four-stroke engines, the intake and exhaust strokes have almost no mechanical utility. Since air is forced in by the induction system and exhaust gases are evacuated primarily through pressure differential rather than piston action, every other crank rotation is wasted.
DUETEC removes the piston from the pumping equation entirely, assigning it solely to port timing, charge compression, and mechanical energy extraction. Gas throughput is controlled by adaptively metering and balancing intake mass airflow against blowdown, using a turbo-electrically assisted supercharger on the intake side and an electronically modulated rotary exhaust valve (EMREV) on the outlet. This setup enables full digital command over pressure cycles, charge dilution, and effective compression ratio with minimal mechanical effort and negligible parasitic losses.
With every downstroke being a power stroke, potential output density is doubled. The elimination of a conventional valvetrain and mechanically intruding poppet valves preserves optimal combustion-chamber geometry and prevents hotspots, enabling advanced mixture preparation and combustion strategies for faster, cleaner, and more reliable burning of even ultra-lean mixtures…
Porous Media Combustion
A Quantum Leap in Combustion and Emissions Control
DUETEC is engineered around a ceramic thermodynamic core featuring Porous Media Combustion (PMC) at its center.
PMC technology enables homogeneous in-cylinder mixture formation within the temporal constraints of two-stroke operation and the controlled volumetric combustion of mixtures with near-instantaneous pressure rise rates, closely approaching the ideal Otto-cycle.
(background picture shows in-cylinder view from the piston’s perspective showing the porous media insert in the cylinder head)
Ceramic Thermodynamic Core
DUETEC pushes ceramic engine technology to the forefront — matching the disruptive impact carbon-ceramic brakes had on stopping performance.
DUETEC was specifically designed with ceramics in mind, leveraging the inherent simplicity of the two-stroke platform to fully exploit the superior thermal and tribological properties of advanced technical ceramics, making their use both technically and economically viable.
As the primary structural material of the combustion core, ceramics ensure DUETEC’s reliable operation under high boost and cycle frequencies, eliminate oil-induced charge contamination, and maintain dimensional stability under extreme thermal and mechanical stress.
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