[TSIboy]

Koenigsegg has revealed the successor of the Agera RS and its named after the founder Christian’s father, Jesko, the man who helped him set up company.

A heavily modified version of the Agera’s 5.0-litre twin-turbo V8, now with a flat-plane crank shaft that’s 5kg lighter than the old 90 degree one, which allows it to rev to 8,500rpm

Active rubber engine mounts from the Regera (the Agera RS engine was solid mounted) mean the extra vibrations from the flat crank are absorbed, while the two equally large turbos are supplemented by a 20-litre carbon tank (topped up by a small electric compressor) that fires jets of air into the turbos at 20 bar, to help them spool up and reduce lag.

The result is 1,262bhp running on 95 octane unleaded, and 1,578bhp and 1106lb ft of torque if you fill it with E85 biofuel. You see, going green has its advantages.

Problem is, you need a mighty gearbox to cope with that sort of twist, and you can’t buy Bugatti’s DSG off the shelf. So Koenigsegg just shrugged and built its own, from scratch, except it’s even smarter, smaller and, at 90kg, a lot lighter the Chiron’s. Dubbed the Light Speed Gearbox, it’s a 9-speed multi-clutch transmission. A bit like a bike that has three big cogs at the front and seven at the back to make 21 possible ratios, here there’s two sets of three, with six clutches that can select any combination at any time. As a result you can jump from one gear to any other without going through the ratios between.

Pull the two-stage paddle half way and you’ll swap down one gear (shifts take 20 to 30 millseconds), pull it all the way and it’ll jump to the gear that offers the best acceleration at that time. Because, y’know, when you’re driving a Koenigsegg you need all the help you can get with overtakes. Koenigsegg’s evocative name for the system is UPOD – Ultimate Power on Demand.

Thanks to that enormous front splitter and boomerang shaped, tilting rear wing, around 800kg of it at 155mph, 1,000kg at 171mph and 1,400kg at its undisclosed top speed. That’s around 30 per cent more than the One:1, previously its highest downforce model.

Only 125 Jeskos will be built, at a rate of around 40 to 50 a year, so compared to the 25 Agera RS and 80 Regeras its sold, that’s progress. But with prices starting at just under $3m plus local taxes, it’s up there with the McLaren Speedtail and Aston Valkyrie for inaccessibility.

Link to the full article.
http://www.topgear.com/car-news/gene...300mph-car?amp

[ds.raikkonen]

Here are some amazing stats about the Jesko (which I thought would be much more talked about than the Gemera!):

1. The Light Speed Transmission gearbox assembly just weighs 90 kgf yet handles 1600 bhp and provides a top speed of 300+mph. Plus the fact that the assembly is made up of ordinary materials, no exotic metal components!

It does not even have a fly wheel, spinning gears on either shafts are used to store inertia for energy.

From the great man himself:

It’s also pretty cool, as we don’t really have a flywheel on the outside, or a clutch, because they are all inside the casted aluminum housing. So when you’re in neutral, you have super low inertia engine with a super-lightweight crankshaft and connecting rods to the pistons. So, it’ll rev like a Formula One engine on idle. And sound completely crazy.

In many ways, it’s very simple. We have eight actuators, and eight pressure sensors. One for each hydraulic clutch. There are seven clutches, but there’s an eighth for the electronic differential. We carry that over from the Agera RS. And then there’s one actuator for reverse, and six for the forward gears, on three shafts. So, two clutches per shaft. That makes it possible to mix and match three gears in pairs.

2. Air Core wheels: lightest and strongest in the business. First made for the Agera in 2013 then the Regera in 2016. Sheer genius. Made from prepreg carbon fibre (which contains the thermosetting resin within) in an autoclave which has to separate set of pieces bonded together and expanded by basically a baloon filled with water.

https://www.youtube.com/watch?v=hvwY4LCJLiE

3. Triplex suspension now featured at the front as well! So the Jesko remains flat even under high aero loading from the massive wing.

[Venkatesh]

Koenigsegg Jesko has been revealed in production guise, more than two years after it was unveiled at the Geneva motor show in 2019.



Koenigsegg Jesko is powered by a V8 engine in conjunction with twin-turbochargers, a forged crankshaft and air injection, the Jesko produces 1262bhp when using 95-octane petrol, but this figure rises to 1578bhp when filled with E85 ethanol and peak torque is rated at 1500Nm.



The V8 engine is paired to a nine-speed transmission, which features seven wet, multi-disc clutches. With this setup the driver can change between any gear in just 20 milliseconds, making it the fastest-shifting transmission in the world, according to Koenigsegg.



The Jesko runs on an entirely new platform, unrelated to that of the outgoing Agera, and the car weighs just 1400kg in wet, road-going form.



Inside, the Jesko runs a SmartCentre infotainment touchscreen, with a SmartCluster instrument display integrated into the steering wheel.



Finished in Tang Orange Pearl paint with silver and carbonfibre accents, the colour scheme is a nod to the Koenigsegg CCR of 2004.



The first customer deliveries of the Agera successor are set to take place next spring. Prices are believed to start at £2.3 million before local taxes are applied.



We are very excited to showcase this pre-series Jesko in conjunction with the start of production of the 125 Jesko and Jesko Absolut customer cars, said CEO and founder Christian von Koenigsegg.



Source

[Venkatesh]

CEO, Christian von Koenigsegg, appeared in an official video giving a detailed presentation of the Jesko.

https://youtu.be/E8fYy_5gXDg