Koenigsegg Jesko V8 - the fastest-revving production engine in the world
One could discuss whether what Koenigsegg is putting on wheels is still sports cars or works of art. The new Koenigsegg Jesko offers exquisite quality not only visually and in many fine details. Technically, it delivers Swedish gourmet food that couldn't be more noble. The first copies will be delivered at the beginning of next year. Before that, Christian von Koenigsegg whets the eagerly waiting customer's appetite by serving technical details. Is that fair?
The famous V8 from Koenigsegg Jesko
Koenigsegg has published a video in which the company founder and CEO shows the technical subtleties. It's about the revving of the in-house V8, and the own, lightning-fast 9-speed LST transmission. It shifts incredibly quickly, can seamlessly skip gears if necessary and, for example, change from 3rd to 7th gear.
In the film you can enjoy the fine sound of the V8 engine for a short time. It is a fine mechanical work of art that particularly touches us in the approaching age of electric motors. How long will you be able to enjoy this sound? Technically, the years seem to be cold.
The in-house twin-turbo V8 engine has a displacement of 5 liters and, if the engine is filled with regular gasoline, produces 1.280 hp. With the E85 in the tank, the power explodes to an unbelievable 1.600 hp. The engine management of the Koenigsegg reminds us of the old, glorious times of Saab's Trionic.
At that time, too, the performance increased, with bioethanol being refueled in the 9-5 OG or 9-3 NG. Unfortunately, the Trionic was history at Saab 2011 before the brand ended. The Saab 9-5 NG and Griffin models of the 9-3 received a Bosch system that was not able to generate more power from E85 fuel.
Koenigsegg produces two variants of the Jesko. The “Absolut” version, optimized for high speed, is said to reach a top speed of 482 km/h, while the “Attack” variant is designed for fast acceleration on the track.
Often times something new - this is the very first time I hear that the Griffin models of the 9-3 do not have a Trionic and should therefore not be able to generate more power when using the E85 ?? Is that really right? So I don't want my 9-3 Griffin Cabrio MY 2012 to come out? The operating instructions say something else. And if that were the case - still higher consumption without a better line?
The Griffin has the DI engines with variable valve timing. A GM engine that Saab Powertrain helped develop. No Trionic - just Robert Bosch.
Consumption and performance
Consumption is inevitably higher with ethanol. The proportion of hydrogen in the molecule is much higher than in the hydrocarbons in gasoline ...
The calorific value is lower. On the other hand, 3/5 of the exhaust gases from ethanol also consist of water. The CO2 balance of ethanol remains the better despite the higher consumption compared to gasoline - quite apart from the fact that one substance grows again and the other is fossil ...
The high proportion of hydrogen in the fuel and thus of water vapor in the exhaust gas ensures "cooling" in the combustion chamber. You can use this to increase performance, but you don't have to. In any case, there is no way around increased consumption. However, for the reasons mentioned, it is relative. Nevertheless, CO2 emissions are reduced.
Volvaab - thank you
for this technical tutoring, very interesting! Of course, it is definitely good for my climate awareness and my own finances when I finally come to France one day and can fill up with a cheap E85. But the previous idea that my sweetheart would then be even more lively on the way (e.g. on the way back via the German autobahn :-)), I have to bury with it. I only had the opportunity to drive the E85 once and didn't notice any really noticeable increase in performance - but also no opportunity to really try it out in wintry Sweden with speed restrictions. Then the stagged horses must also be sufficient in France etc. 🙁 But they're not that bad either ... 🙂
Maybe the whole thing has something to do with Euro 5, which the previous models with Trionic couldn't achieve?
We must not compare apples with pears. In the 9-3 NG there were Trionic engines (which were GM engines) that were manufactured worldwide. Only in the 9-5 OG there were "real" Saab engines, also with Trionic. Their rights were later sold to China, the argument being that Euro 5 would not be achievable. In the Senova models, however, the Saab engines did achieve Euro 5, with the help of Saab Powertrain.
performance Plus
I can comfort you there. Your 9-3 is stag if I have that in mind?
Even the 9-5 OG BioPower (2.0t and 2.3t), which have a full plus in torque and power with the E85 (noticeable), are more or less leveled off as soon as they are down. The performance data for the E85 and 98ROZ come very close together at a high level. I don't feel any difference anymore. Only the conscience is different depending on the tank filling. However, the performance is almost identical. The increase in performance (220 vs. 210 PS [2.0t] or 230 vs. 220 PS [2.3t]) is then well below 5% for both BioPower. I don't mourn that. But the environmental and economic opportunities do.
Tom and Volvaab
Everything was very interesting, also with regard to Euro 5, and that when GM was finally (only) again manufactured in Trollhättan (from 2011) GM was used with Robert Bosch. Yes, the horses are stagged (see above) on 210 hp. For the reasons mentioned (CO2 balance, etc.) I'm still looking forward to a trip through France with the E85 (and before that maybe again through Sweden in the summer, which is easier to reach from here via the Travemünde-Malmö ferry ).