P1racenews AI automatic summary:
Porsche hopes 963 engine redesign is approved for Le Mans
The German manufacturer Porsche is working on a new crankshaft for its 4.6-liter, twin-turbo LMDh engine. The engine is a development of the units used in the RS Spyder LMP2 and the 918 Spyder plug-in hybrid road car. The timeline for racing the updated engine depends on approval from the sanctioning bodies of the World Endurance Championship and the IMSA SportsCar Championship. If approved, the engine could potentially be introduced in 2024. The engine update would have to be implemented across all the Porsche 963 cars, both factory and customer cars, that compete in WEC and IMSA at the same time. The exact reasons for the planned engine updates have not been disclosed, but vibration issues and reliability problems were experienced with the previous version. It is uncertain if the engine change will be counted as one of the allowed performance developments in the LMDh category.
