Tomsky wrote: ↑03 Jun 2024, 11:21
Switching to torsion bar springs
Only in the third year did the competition react. Ferrari, Mercedes, Haas and Toro Rosso now have similar systems. The one from Ferrari is supposed to be even better than the original. Toro Rosso already benefited from this in the last third of the 2023 season, when they took over the 2023 rear axle from Red Bull. Haas has been using Ferrari technology since the Miami GP.
First of all, the mentioned teams switched from their ancient disc springs to torsion bars. They are much better to dose than the accumulation of ring shells. The fine adjustment of the vehicle height during driving is a decisive factor for Groundeffect cars. "We are talking about differences of half a millimeter here during the setup," reports a team boss.
Previously, the rear was set to a ground clearance of between 140 and 180 millimeters. As a result, the car had about 100 millimeters of freedom of movement over one lap. Of these, about 80 millimeters were accounted for by the suspension travel, the rest by the tires. Today, the cars are between 60 and 70 millimeters above ground when stationary on the rear axle. The suspension over the tires is significantly lower with the 18-inch rims. So there is much less leeway.
An advantage even in slow curves
In the meantime, it's no longer just about buying a little more top speed. The systems are becoming more and more sophisticated and allow an optimization of the ground clearance in the rear in certain speed ranges. The top speed gain is just one of several advantages.
The effects in the other areas are far more profitable. If you have mastered the technology correctly, you can adjust the suspension so that the rear end is relatively high in slow and medium-speed corners and thus has room to cushion curbs and bumps somewhat gently.
With increasing speed and contact pressure, the ground clearance stops at a predetermined minimum in order to get the optimal downforce for fast turns. Only at maximum load on the straights does the suspension go on block and stall occurs.
The steps, from which point in time how far is lowered, must be set before the start of the journey. The necessary technology for this will cost a couple of kilograms, but it pays off. Ferrari has perfected its suspension compared to last year. No other car swallows bumps and curbs as well as the SF-24 and is still competitive in fast corners.
McLaren, Aston Martin, Williams, Sauber and Alpine are still conventionally on the road or they are currently tinkering with dampers and springs, the stiffness of which can be varied better. McLaren team principal Andrea Stella does not trust the peace: "We do not have an explicit lowering device. This can become critical at low ground clearance. You quickly have a loss of downforce in places where you don't want it."
https://www.auto-motor-und-sport.de/for ... ndes-heck/