Koenigsegg Engines
A record-breaking tradition
Koenigsegg’s first effort at engine development was so successful it saw the company awarded a Guinness World Record. Back in 2002, the Koenigsegg CC8S replaced the McLaren F1 as the car with the most powerful production engine in the world.
The next Koenigsegg engine achieved a similar feat when the CCR took the world production car top speed record, again from the McLaren F1. In 2014, we announced the Koenigsegg One:1 with a twin-turbo V8 producing 1,360 hp, enough to make the One:1 the first production car in history with a 1:1 power-to-weight ratio. With 1 megawatt of power, the One:1 was the world’s first megacar. That record-breaking tradition continues.
The new generation of Koenigsegg
The Koenigsegg Jesko is powered by a re-designed 1280hp (1600hp on E85), twin-turbocharged V8 engine that benefits from significant changes to the Agera engine it replaces. At the core of this revised engine is Koenigsegg's first flat-plane crankshaft.
Weighing just 14.9 kilos, Koenigsegg’s new 180-degree crankshaft allows Jesko to produce more power, with greater efficiency, while achieving a higher 8500rpm rev limit. It is made to Koenigsegg’s in-house design specification from a single steel billet. The flat-plane design allows even firing across engine banks, and an even more visceral engine sound.
Koenigsegg has countered the tendency that flat-plane engines have towards greater vibration by designing new super-light connecting rods and pistons. The connecting rods are made from premium Swedish steel. At just 540g - including bolts - they’re as light as previous generations made from titanium, but even stronger.
A re-designed engine
More compact, more powerful
The HV8 engine was first developed for use in the Koenigsegg Gemera, where a more compact engine configuration was required to fit into a smaller engine bay.
The ‘Hot-Vee’ configuration sees the exhaust and turbochargers moved from the outer flanks of the engine to the middle of the V. This design allows for a much more compact footprint, and being so much smaller, it opens options for more flexible vehicle architectures.
It also means a cooler engine bay with air intakes now located low down, on the outer flank of the engine block, and turbos located adjacent to air extraction vents at the top of the engine.
We completed the engine re-design with improved airflow, new turbos, a water-to-air charge cooling system and a more efficient exhaust system.
The end result is a HV8 engine that works with the Koenigsegg Dark Matter e-motor to provide 2300hp in the Koenigsegg Gemera – the highest ever output in a fully homologated road car.
Koenigsegg's Hot-Vee
A study in constant refinement
The Jesko V8 provides a great example of how Koenigsegg is constantly optimising technology and design for greater performance.
The piston’s curved face shapes the combustion chamber in such a way that it reduces peak pressure while maintaining high average pressure. The ceramic coating on the face of the piston prevents hot spots and detonation when the engine runs at maximum power.
The piston weighs just 296 grams. Minimal weight is important because Koenigsegg engines have a very long stroke and at 8500rpm, efficiency of movement becomes critical.
The cylinders in Jesko’s new twin-turbo V8 are fitted with the world’s first individual in-cylinder pressure sensor system for serial production. This allows the Koenigsegg-designed and manufactured Engine Management System to monitor and operate each cylinder at maximum efficiency and closer to the edge for ultimate flexibility and control.
This mix of wholesale changes and incremental improvements results in an increase in the engine’s rev limit - to 8500rpm - and an increase in power to 1600hp on E85 fuel. When run on regular gasoline, the engine produces 1280hp. The torque is increased to 1500 Nm.
Jesko features not only the most powerful Koenigsegg internal combustion engine ever made, but also - we believe - the most powerful internal combustion engine of any homologated production car in history.
God is in the details
a record breaking engine
Christian von Koenigsegg showcases the fast-revving Jesko engine and how it works!