marcush. wrote:you are only fixed with the engine internals .
So inlet including fuel rails etc is free to develop
your exhausts -free
your pumps,sump,all ancilliaries free.
I´d think it was very naive to think everyone was getting the same just because the main lump looks the same.
Nobody said Mercedes is supplying detuned hardware to MCL
The word is Mercedes is putting extra effort into their own engines and development AND posibly runs those engines closer to their potential for a longer period.Which is entirely possible.
Mind you the engines were designed for higher revs originally so there is some allowance if you really are on toip of your quality system -and that is what Norby has emphasized now more than once...going as fart as claiming they had at least two more championships under their belt with the quality they build todays....

This is eerily reminicent of McLaren and Honda in the 80's (I think). Everyone thought McLaren got better engines from Honda than they gave to their other customers. To the point that Honda made the teams draw straws on which team gets which engines... But at least, then it was the teams complaining, not the fans...
I can accept that MBHPE are giving the best engines (based on dyno runs) to MGP. But it would be 2-3 HP. 5 at the most. Not even remotely enough for a 10km/h difference, especially not at 340+ km/h.
This is not your old pushrod V8s. The tolerances are minute and correspondingly the variance as well. Exhaust and intake design are up to the teams, I believe. So if that's the problem, it's McLarens own fault.
The thing that keeps coming back to me is this, if there is a problem, why haven't I read anything in the news of it? Surely the teams would have noticed it long before we have and someome, somewhere, would have said something. And if they did, it must be entirely legal. Something like, as you said, exhaust or intake design - which is up to the teams.
Ask yourself, what would a team member of McLaren or FI say when they read the last page or so of this thread. Do you really, honestly, think they would say:
"Hold on, these fellows have a point - why didn't I think of it?"
Edit:
You also mention Mercedes putting extra effort into their own engine development. So if, as you say, the lump is the same in what would they do the extra development then as any development of the free parts would have to be declared anyway. As ferrari had to a season or so ago, when they changed a waterpump for "reliability reasons" and then changed it back because it was unrelaible (very funny at the time). Even ancilliaries have to be declared.