Porpoising seems to be a problem with some cars more than others.
I don't remember porpoising being an issue in Champcar, and the Lola, Reyards, and Panoz had some pretty serious tunnels. In fact, the Panoz DP01 was designed to make 50% of its downforce through ground effect.
The pictures that I've seen of the DP01's floor like pretty much identical to the floors I've seen from some of the 2022 F1 cars. The only discernable difference I can see is that the center skid plate is lower than the sides of the tunnels, giving it a stepped floor. I would imagine that that would prevent the tunnels from stalling, as it would naturally limit their height from the track. If porpoising really is an issue (across the board, not just for a couple of manufacturers), perhaps the FIA should tweak the rules by increasng the thickness of the center skid plate.
Edited by MattPete, 24 April 2022 - 19:23.