FORMULA 1 ING MAGYAR NAGYDIJ 2008 : TECHNICAL NEWS

Ferrari F2008 - vertical slits in rear diffuser

A modification on the F2008's aero package in Hungary was this vertical slit in each side wall of the diffuser's central section. The increased pressure generated by airflow passing through the slits helps improve the extraction of airflow in that central section of the diffuser. This in turn helps to slightly increase the downforce generated underneath the car in this area, resulting in better traction - something that was lacking at the previous race in Germany. This change will almost certainly be retained for the remainder of the season, after it proved effective in improving the overall balance of the F2008.

Ferrari F2008 - shark-fin engine cover

As part of their Hungarian aero update, Ferrari have included a heavily-revised engine cover. This full-height shark fin profile (inset) is almost identical to those already introduced by Red Bull, Renault, Toro Rosso and Force India. This revision improves the car's rear-end efficiency and balance, and to enhance its straight-line stability at high speeds. It better manages airflow close to the engine cover, and in particular reduces turbulence generated by spillage from the engine air inlets. This addition could well be used at the season's remaining races, albeit with ongoing revisions. With traction arguably the F2008's weak point at the last round in Hockenheim, even a small improvement in rear downforce should prove beneficial.

Toyota TF108 - shark-fin engine cover

Toyota were another team to introduce the now almost ubiquitous shark fin in Hungary, though it is not clear whether they will keep it for the rest of the season, given its late introduction, which also comes at a circuit with very specific set-up requirements. The concept - and hence benefits - is similar to that of the fins seen on other cars, with better rear-end aero efficiency and balance the major gains. The resulting improvement in downforce may only be small, but at the Hungaroring even that can have a significant and positive effect on handling sharpness and traction.

McLaren MP4-23 - nosecone winglets

These horn-like winglets halfway up the MP4-23's nosecone have been introduced by McLaren in Hungary. It's a solution not dissimilar to the 'delta' winglets on the BMW Sauber and one that provides a better quality of airflow to the car's sidepod inlets and rear end. It does this by improving the management of the airflow exiting the front wing. This doesn't directly increase front downforce, but instead improves the aero efficiency and downforce load in the central and rear sections of the car.

McLaren MP4-23 - slit in front wing flap

In addition to the new nosecone winglets that McLaren debuted in Hungary, the team also introduced this change to the rearmost flap of the front wing. It may be more subtle than the winglets, but is actually more important in terms of airflow management. In truth, the two revisions work in tandem. The slit (inset) in the middle of the flap helps to extract the air passing underneath and then to direct it towards the upper wishbones of the front suspension at an angle of around 30 degrees. That airflow is then diverted horizontally by the winglets on the nose. The higher negative pressure that the slit generates under the wing helps to improve the sharpness of the car's front-end handling.