Some more rumours about the new Ferrari on
https://www.funoanalisitecnica.com/2023 ... 3330078125
They say (translated with Deep L):
"On the fact that we will not see a conformation of the Ferrari bellies quite altered we all agree. Nevertheless, in this very portion of the car, the Prancing Horse engineers have decided to invest time and money to try to recover aerodynamic load at the rear.
During the past world championship, our editorial staff mentioned one fact several times: the F1-75 had a rather advanced center of pressure. A factor that made it very competitive at some tracks such as Silverstone, a circuit where possessing a very good grip at the front is essential to obtain good chronometric results. While at other tracks, this characteristic created quite a few headaches at the rear. At low speeds, in fact, the car behaved very well. However, when the km/h increased, the lack of load became infinging.
Precisely for this simple reason, the new aerodynamic look of the Ferrari 675 includes bellies that are more tapered toward the rear, while retaining the "scoops" at the top. The goal is to increase the flow of air flowing above the diffuser.
To this measure must be added the modification regarding the initial area of the sidepods, where we will be able to observe an increased "hollowing" capable of channeling a higher air flow towards the rear, similar to what Red Bull did last year. To accomplish such an operation, the Italian engineers made some changes to the internal distribution of the elements, changes that could not be put in the pipeline during last season.
Then there is a crucial factor that Ferrari has duly attended to, identified as one of the main problems of the 2022 edition red car: excessive drag, an element that has too often inhibited the engineers in finding the correct set up. In an effort to reduce drag, efforts have been made to clean up the flows surrounding the side pods. In this regard, it should be noted that the bulky sidepods that characterized the F1-75 are not the major cause of the drag generated by the car. On the contrary, wider sidepods can help ward off turbulence generated by the front wheels.
But then why couldn't the Maranello car produce an adequate aerodynamic penetration coefficient? The simplest explanation is to associate the greater drag with less effective wake management with regard to the front wheels, which was certainly better than the W13, but inferior when compared to that generated by the RB18.
From such a context we can extrapolate a reasoned consequence, which prompted the engineers in red to rectify the lower area where the "old" bargeboards were positioned, to be clear. The purpose is to increase the outwash effect, a neuralgic theme in today's Formula One cars.
F1. Ferrari 675: transmission and rear suspension
The current regulatory body, related to the 2023 season, imposes an increase in the minimum height of the bottom from the ground by 15mm in the outermost portion. While the modification affecting the diffuser is on the 10mm. This measure imposes a different bottom slide, substantially further from the reference plane (asphalt).
The directive acting on the technical regulations has primarily produced a redesign of the gearbox, a mechanical element that resides in that very area of the single-seater. Redesign that obviously will not affect Ferrari alone, but rather several teams that make up the lot.
The scenario just described has forced the men of the historic Modenese stable to make the diffuser of the new car work with an increased ground clearance. As we can easily imagine the pitfalls in this regard have been several. Nevertheless, according to information gleaned by Formula One Technical Analysis, the changes put in place after redesigning part of the bottom have largely satisfied the engineers.
Considering the new 2023 ground clearance heights, the red car specialists, evaluating the Red Bull set-up with extreme relief, managed to modify it to adapt that philosophy and make it factual on their single-seater. All to foil a "depressive spike" and minimize the tedious and infamous porpoising effect, a context that should ensure a wider set-up range.
As for the suspension system at the rear, although again there will be no upheaval to take advantage of all the know-how "collected" during the 2022 world championship, some targeted changes will make a presence. We are talking about a correction related to the kinematics and in particular the reciprocal position between the center of mass and center of roll, an indispensable factor for the administration of the compounds.
The engineers' desire is to equip the 675 project with a wider suspension tuning window, capable of better adapting the car toward tire management, a focal point that too frequently has limited the F1-75's race pace in no small measure. An area on which, Ferrari, thinks it can achieve a marked step forward.
F1. Ferrari 675 power unit: reliability and increased power.
Depowering a power unit in progress to give the car proper reliability is a real technical defeat. The headache that actually adversely affected performance concerned the emission peak recorded inside the pre-chamber, capable of producing great technical and mechanical stresses.
Through the regulatory clause granted by the federation, Ferrari worked on the ignition delay to smooth out the heat curve produced. The goal was achieved by intervening on the pulverization of the mixture to obtain a more turbulent jet inside the chamber.
The system called TJI (Turbulent Jet Ignition), as anticipated in the Dec. 1 write-up usable at this link, has been further refined by exponentially raising the turbulent capacity of the power unit.
In addition to the "correction" that actually promotes self-ignition at various points in the combustion chamber, a factor that increases the thrust on the plunger by eliminating the problems suffered, the engineers worked on the engine architecture. The intervention extrapolated an additional handful of horsepower that, added to the "unexpended" horsepower in 2022 to ensure reliability, will give the Ferrari 675 a significant boost.
F1. Ferrari 675: improved weight and handling
Although at first glance the next work of Italian mechanical engineering will not seem so dissimilar from the previous car, in writing we have nonetheless put under the magnifying glass the new features that will be offered since the pre-season tests in Bahrain, set for February 23/24/45. In this respect, it is worth noting the great refinement work done on the single-seater's components.
Aware of the importance of being able to best administer the incidence of kilograms on a Formula One car, the team's technical department has made great efforts by implementing a "slimming plan" on the 675. In balancing the car, in fact, the value of ballast can be quite effective, which, placed in strategic points, will be able to favor the balance of the car by facilitating handling for the drivers."
I don't know how valid their informations are and where they get their informations from. We will only see that when the car is finally presented. Personally i doubt that all of this information is correct, but most of them sound reasonable.
