Koenigsegg has unveiled an all-new megacar, the Koenigsegg Jesko at the 2019 Geneva International Motor Show. Jesko inherits the mantle left by the Agera RS as the leading track-focused, road-legal car for those looking for the ultimate in vehicle performance. Jesko is named for Jesko von Koenigsegg, the father of company Founder and CEO, Christian von Koenigsegg.
Jesko is powered by a re-designed twin-turbo V8 engine with a new 180-degree flat-plane crankshaft, new intake, bigger turbos with air injection, and more precise pressure control. At the heart of this newly designed engine is the world’s lightest production V8 crankshaft. Weighing just 12.5 kilos, Koenigsegg’s new flat-plane 180-degree crankshaft allows Jesko to produce more power with greater efficiency, while achieving a higher 8500rpm rev limit.
The crankshaft is milled by a small manufacturing house in southern Sweden. It is made to Koenigsegg’s in-house design from a single solid billet of high tensile Swedish Dievar steel. The flat-plane design allows even firing across engine banks and an even more visceral engine sound. The tendency of flat-plane engines towards greater vibration is countered by active engine mounts first used in the Regera, as well as newly designed, super-light connecting rods and pistons. The Koenigsegg-designed air injection system comprises a small compressor and carbon fibre air tank. The patent-pending system provides a powerful 20-bar shot of air strategically located within the turbocharger system in order to pre-spool the turbochargers and provide instant response.
The engine has been re-designed to house a tumble valve on intake and individual pressure sensors for each cylinder in order to achieve real-time, precision monitoring of every cylinder – an industry first. Turbulent air provides a faster burn rate, which leads to more efficient and effective combustion, especially at lower rpm and during cold starts. The new Koenigsegg V8 produces 1280hp on regular gasoline and an astonishing 1600hp on E85 – an available option in certain markets. Maximum torque increases to 1500 Nm at 5100rpm with 1000+ Nm available anywhere between 2700 to 6170rpm.