ringo wrote: ↑
Fri Apr 05, 2019 4:52 am
The cylinder issue is not an excuse.
The knock on effects must be understood before we say Ferrari are lying.
The harvest from the H increase back pressure on the manifold; there may have been a risk to crack the manifold on the bank with the misfiring cylinder that may have been putting more unburnt fuel into the manifold; which may also be damaging to the turbo. So lets consider knock on effects before we jump to conclusions. We simply do not know what is happening in the Ferrari engine, and how sensitive the parts are to operating in an abnormal condition in race conditions.
You are right. I suppose what makes this whole thing rather interesting to discuss is that if Ferrari were lying about it, why would they be doing that? There are indications that Ferrari have found again something in their PU that gives them a significant advantage which could be centered around their MGU-H. Either way, I'm sure the data of both Ferraris, one with the fault and one without are of high interest up and down the paddock.
IMO - If it were down to a mere cylinder failure / misfiring / fuel injector issue, I somehow think there would be more than enough data and sensors for the team to know pretty fast what they are dealing with. I'd also expect that to be quite audible as surely the rhythm of the engine would be off with one cylinder having an issue? I've driven a car once with one cylinder failing (a faulty spark plug) and the engine was extremely rough. Different engine of course, different car etc, so no comparison I'm sure.
I do get the point though that perhaps the faulty cylinder could lead to an underperforming MGU-H and that this data then might at first glance look like the MGU-H quit which explains the resulting team-radio to Leclerc.