On the occasion of the 24 Hours of Le Mans, Bosch and Ligier showed the fruit of their collaboration. Indeed, it is The JS2 RH2, a prototype of a hydrogen-powered racing car was presented. The partnership between the two companies had started in November 2022 and this prototype is now available for the first time. the result of their joint work.
The JS2 RH2 is the perfect choice for you. a car in which technologies will be tested which, in the future, could find a place in real racing cars. After all, according to Johannes-Jörg Rüger, President of Bosch Engineering, hydrogen has great potential for the future. in the world of motorsport.
This prototype is; already took to the track for some very first tests in Germany. In the coming months, the tests will continue to continue the development of the engine, to improve its performance.
V6 ENGINE 
The JS2 RH2 was born from the basis of the Ligier JS2 R which is the basis of the Ligier JS2 R. been adapted to integrate the new engine and hydrogen tanks. At the time of the presentation, Bosch and Ligier also shared some initial information on the technical characteristics of the prototype.
So, this racing car has a 3-litre twin-turbo V6 engine capable of delivering 420 kW (570 HP)with 650 Nm of torque and even reaching 7,000 rpm. According to the two companies, thanks to the development work it will be possible; possible to further increase the power of the engine. The prototype engine is not; the one normally used on the JS2 R and adapted for the use of hydrogen. It is only made known that it is a unit of the same type. standard which is been revised by Bosch. Among the changes made, the introduction of a new direct injection system. The engine is mated to an 8-speed dual-clutch gearbox. The speed maximum exceeds 280 km/h.
Hydrogen is contained within 3 tanks developed by Hexaon Purus, at 700 bar of pressure (total capacity 6.3 kg of hydrogen). The tanks have been inserted inside the carbon monocoque of the car which is designed to be used on the vehicle. been modified specifically for this purpose. Obviously, a lot of work is involved. This was done to ensure maximum safety of the hydrogen system under all conditions of use on the track, even in the event of an accident. According to the technical data sheet, in this configuration the car weighs 1,450 kg.
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