The FIA has signalled there will be no compromise, allowing Mercedes and Red Bull Powertrains to continue with their current engine concepts, Motorsport reports. According to sources, the governing body has accepted that the combustion chambers in the disputed power units would be considered legal if inspections carried out at room temperature show a compression ratio of 16:1. It would not matter if the figure rises when the engine is running hot.
The principle mirrors the long-running debate over flexible wings, which remain within limits during static tests but deform under increasing aerodynamic load. Should the engines reach...