I guess discussing about specific road car here at the technical forum is a bit off topic, but I still like to do that. After all, F12 Berlinetta is quite impressive in many ways. For a background information, the most notable improvements over preceding 599 GTB model are:
- Compression ratio has leaped from 11.2:1 to 13.5:1
- Power increased from 620 hp to 740 hp ( naturally aspirated V12 enlarged from 5999 to 6262cc by increasing bore, specific power increased from 103 to 118 hp/liter )
- Drag reduced from 0.336 to 0.299 (even with 1cm wider front and rear tyres)
- Weight reduced by 55 kg ( from 1580kg to 1525kg )
- Center of gravity lowered by 2.5 cm
- Downforce increased by 76%
1) I'm a bit puzzled why top speed is increased only from 330+ to 340+ km/h. The drag coefficient has been lowered by 11 % and frontal area close to 5% and power increased by 19%. By using cubic formula's the top speed should certainly be well over 360 km/h. Are there short gear ratios or is Ferrari downplaying the top speed?
The aerodynamics are interesting indeed. Take a look at this:
2) What do you think, can that aero bridge thing really improve things?
3) How is that breathed spoiler going to work? On Ferrari's web page they state that: "Blown rear diffucer (the area of high pressure around the rear spoiler is used to alter pressure inside the rear wheelarch to improve efficiency)". Just wondering if this video presents the correct behavior of those holes above rear wheels, or has marketing department just understood it wrongly?
Edited by inox, 16 March 2012 - 18:33.