Petebass wrote: ↑07 Sep 2026, 15:37
There must be some fundamental problems with the concept and architecture of the 2026 engine that are preventing both normal operation and further development.
I think that after the winter testing, Honda basically started creating and developing the 2027 engine almost from zero, and that they have only used one ADUO upgrade this year, mainly related to combustion, as a test bed. I think we'll find out about this during the 2026 winter break.
I don't think they'll be fully prepared for 2027 either, because the other manufacturers will also improve, while Honda will almost be starting from the start. Perhaps by mid-2027 they could be in a position where they're only around 15 hp behind, at which point they could at least fight, but even that would be an optimistic scenario.
I don't think that, after constantly improving essentially the same V6 bottom end since 2017, there was much more they could have improved going into 2026.
The rule change fundamentally affected combustion. The outlawing of cylinder-pressure sensors, the radical change in fuel, the 16:1 maximum compression ratio, and the reduced fuel flow all effectively erased many of the combustion-side advantages that Honda and the other manufacturers had been developing prior to 2026.
The 2026 regulations were a major reset of the combustion side of the ICE, rather than simply another evolution of the existing V6.
The FIA did change where the MGU-K connects to the crankshaft. but I still see the combustion being where all the gains will come from on the ICE side.