They do random tests. Also, all parts have FIA seals I believe. You can theoritically cheat. You can theoritically cheat with any part, but chances are real you'll get discovered. Especially with such a high profile part.
godlameroso wrote: ↑
Thu Jul 11, 2019 3:09 pm
The y250 tunnel that starts with the leading edge of the wing seems to be critical to wing performance. Racing point McLaren and the big 3 all have these features on their front wings.
It seems to be that these tunnels strengthen the y250 vortex for greater interaction with the middle of the car.
However I think this is a very sensitive area, particularly one that can stall if the rest of the wing geometry isn't helping.
I think modifying the y250 flaps as well as the tunnel opening can bring or kill a lot of performance. There is a sweet spot for flow velocity and mass flow, and some teams have overshot one or the other.
The Y250 area flaps are indeed very important. A quick reminder also that that (I believe between Y250 and Y400) area is excluded from most regulations they introduced this year. So they can still shape the geometry at will there, just have to stay within 5 elements.
Also, what comes behind the front wing is very important as well. All the bargeboards, turning vanes, capes, etc. are there to heavily emphasize that specific flow. And if you got it wrong by a couple of mm, than that can have dramatic implications. Integrate that into flexing, bumpy roads, different velocities, and you got a massively complex challenge. It is that reason why you see Mercedes never have made dramatic changes in that area ever since 2014: we don't know what they have is the best solution, it might or might not be, but more importantly they got a baseline of 5 years in that area. The amount of unknowns and correlation issues they don't have to deal with, is not to be underestimated.