Quote:
Fanch said:
A C4S cannot be faster than a C2 on a track, cab or coupe, tyres hot or cold.
That's with an experienced driver that is.
Simply because the C2 is lighter and has more traction.



For a very large track, that is correct; for most tracks, it is not. A C2 does not have more traction, that's the point. First, the C2 is basically a one wheel drive car since no LSD is available. Your ability to put power down is dependent on that ONE tire's ability to handle the heat. Too much heat, and the traction of that tire goes down. The C4S uses all 4 tires and can apply the power down to each of the 4 tires with less stress on them, therefore less heat. For the first few laps the C2 will be faster due to weight, after things heat up, the C4s will catch up and pass. There have been independent tests on this on "normal" tracks (not Nuerburgring which is very large) and the C4s was the faster car.

Some other points are that the C4s has a stiffer chassis, bigger rubber, and bigger brakes. That makes for better total lateral accelleration and better braking. The only advantage a C2 has is straight line accelleration due to less weight. On the "ring" that helps, on most of the tracks I run on overheating the tires catches up with the C2 after 2 or 3 laps.

Roy