F1 Porpoising Explained: The 2022 Bouncing and How It Was Fixed

Porpoising is the violent vertical bouncing that hit Formula 1’s ground-effect cars when the current rules arrived in 2022. As a car gathers speed, its underfloor sucks it down toward the track until the airflow suddenly stalls, the downforce collapses, the car springs back up on its suspension, and the whole cycle repeats — several times a second. Teams cured it by raising ride height and reshaping the floor, and the FIA raised the floor edges for 2023.

The name comes from the way a porpoise bobs in and out of the water, and for one season it was the defining problem of the sport.

Why 2022 brought it back

The 2022 regulations reintroduced ground effect — generating downforce from shaped tunnels under the car rather than mostly from the wings. Ground-effect floors are enormously powerful, but they work best when the floor runs extremely close to the track, sealing the fast-moving air underneath. The closer to the ground, the more suction, the more grip. That is the whole appeal, and it is covered in full in our F1 ground effect explainer.

The problem is what happens at the edge of that behaviour.

The physics of the bounce

Porpoising is a feedback loop:

1. The car speeds up, and the underfloor generates more and more downforce, pulling the car toward the track.
2. The floor gets so close that the airflow underneath briefly stalls — it can no longer flow cleanly, and the suction suddenly collapses.
3. With the downforce gone, the springs push the car back up.
4. Raised off the ground, the airflow reattaches, the downforce returns, and the car is yanked back down.

Repeat that several times a second and you get the rapid, teeth-rattling bounce seen on the straights in early 2022. It was worst at high speed, exactly where the cars were meant to be quickest and most stable.

How teams and drivers fought it

Every fix traded away performance, which is why it took real engineering to solve:

Fix	How it helps	The cost
Raise ride height	Keeps the floor out of the stall zone	Less downforce, slower laps
Stiffen the suspension	Resists the vertical oscillation	Harsher ride, worse over kerbs
Reshape floor edges and tunnels	Makes the airflow more stable	Complex, costly aero redesign

The teams that understood their floor’s behaviour fastest — and could stiffen and reshape without giving up too much grip — recovered quickest. The ones that ran low and stiff to chase downforce paid for it with the most brutal bouncing.

Why it became a safety issue

This was not just uncomfortable. Drivers were taking repeated heavy vertical hits lap after lap, and several reported back pain, blurred vision at the point of impact, and difficulty concentrating at speed. When drivers start describing a phenomenon as a safety risk, the governing body has to act.

The FIA introduced a technical directive during the 2022 season that monitored and limited how much vertical oscillation each car was allowed, using a defined aerodynamic oscillation metric, and added floor-stiffness checks to stop teams flexing their way around it. For 2023, the rules raised the floor edges and the underfloor throat height by a set amount, lifting the whole working range away from the stall point. Across the grid, the bouncing largely disappeared.

Porpoising versus mechanical bouncing

It is worth separating two things that look similar. Porpoising is aerodynamic — the downforce itself building and collapsing on a smooth straight. Bouncing over kerbs and bumps is mechanical — the suspension reacting to the surface. They can feed each other: a car run very stiff to fight porpoising is also less able to absorb bumps, so drivers in 2022 often complained about both at once. Fixing one could aggravate the other, which is why setup that year was such a knife-edge.

The bottom line on porpoising

Porpoising is the aerodynamic bouncing that gripped F1 in 2022, caused by ground-effect floors whose downforce built, stalled and rebuilt several times a second. Teams tamed it by raising ride height, stiffening setups and reshaping the floor — each at a cost in grip — and the FIA raised the floor edges for 2023 to curb it across the field. It was the price of chasing ground effect’s huge downforce too close to the ground.

To understand the downforce that caused it in the first place, read our F1 ground effect explainer, and see how the aero rules also shape overtaking in our slipstream and tow guide.