AR3-GP wrote: ↑12 Sep 2022, 20:36
That doesn't explain why Alonso felt he didn't have power since lap 10. If PU was overheating, a simple temperature sensor alarm would have went off.
Alpine have a history of being weird and coded about the reason for their retirements.
Yes it kinda does. Even without running into a PU protection mode, a hotter engine will be more prone to auto-ignition and with the cylinder pressure surveillance in these PU, this will mean retarding ignition timing thus losing power. This can quickly represent 10-15kW.
And then if it gets hot enough to get into a safety mode, this is likely even more kW lost.