AR3-GP wrote: ↑27 Jul 2024, 21:37
https://i.postimg.cc/jjwgvyPS/Merc-Bus- ... ualy-3.gif
There were a few good shots of the changing floor pitch and height as the car goes into the bus stop chicane at Spa. There are multiple stages:
1) Max compression (heave) at top speed before the bus stop.
2) Brake dive (sparks from the front of the plank)
3) Nose up when the brakes are released.
To me it seems that the car suspension was set up very soft at least at the front to have such a big dive and presumably this was done due to wet track conditions that needed a higher ride and a softer suspension.
Besides that there are rumors saying that
their suspension didn't cope in the high-speed corners with the increase load generated by the new floor and diffuser and at a certain speed and threshold load the car is porpoising porpoising...
The reason for that issue is the endless miscorrelation between the CFD+WT and the real track results due to the 60% scale model they use but mainly due to the inability to simulate lateral loads when the car is in a yaw situation...
So they need to roll back these upgrades and go to the same route like Ferrari did throughout a modified floor and suspension to cope with these peak loads.
Finally, what's interesting to know, is how come MCL38 is the single car this year that their upgrades were working flowlessly ...