What I'd love to know is if F1 teams can only use windtunnels of a certain spec and if they sort of lock in a certain wind tunnel to use for X amount of years to FIA? Because the reason they can't work on finding a solution for porpoising right now in a windtunnel is because they would destroy the rolling mat that the car runs on even before the stalling occurs, but surely if things were simple (like they never are in F1) I was thinking they could build a rig above the mat and ignore the wheels not moving, or alternatively use a windtunnel with a static floor, slap down a 5cm steel plate and then porpoise all night long. Does anyone know the rules on this?
One of the main reasons is that the wind tunnels are limited to 180kph, and the porpoising exists at a speed much higher than that. Alongside other important reasons around a constant direction of airflow & difficulties in simulating things like tyre wake around the car.