New GT4 vs Autocar 0-100-0 test.
Kent mentioned in a thread over in the main forum that he believes the brakes on the Zonda to be poor, having never tested one in GT4 (or unfortunatly the real world) I dug out some figures from the
Autocar 0-100-0 test from 2003 which featured the Pagani Zonda C12S 7.3 '02, and ran the same test in GT to have a quick look.
In addition to the 0-100-0 test I also got the 60-0 figure from the original roadtest of the car, just to see how that shapes up.
The conditions for the test were the same as the
previous ones for the Ford GT, M5 and Viper. Six runs best overall time taken for both the 0-100-0 and 60-0 runs.
0-30
Autocar = 1.84
N2 = 2.18
N3 = 1.88
The mid-engined layout helps with getting off the line, but the hugh power of the car wants to spin the tyres constantly, very balanced throttle control needed all the way to 30.
Both GT4 figures are very clos here, with the N3s being only 0.04 seconds adrift.
0-60
Autocar = 3.74
N2 = 4.94
N3 = 3.76
The Zonda is capable of 60 mph in first gear, but only just, you need to be into the red-line to get it. The N2 time was from the fastest overall run, but I changed gear just before 60, hence the reason this figureis out.
The N3 time is now to within 0.02 seconds of the Autocar test figure.
0-100
Autocar = 7.52
N2 = 8.24
N3 = 7.44
100 mph can be achieved in 2nd gear, which again helps keep the figures down. The N2 figure is now down by 0.72 seconds, while the N3 figure is ahead by 0.08 seconds.
Reaction Time
Autocar = 0.27
N2 = 0.22
N3 = 0.24
100-0
Autocar = 4.05
N2 = 4.14
N3 = 4.2
Both figures are within 0.15 seconds of the Autocar test, these figures also throw up the one issue with multiple runs and taking the overall quickst time. The quickest overall time was down to some very quick reactions on the brakes and was also the best 100-0 figure for those tyres.
The N3 time, while not poor, was from an excellent launch which resulted in a great run, however the braking was one of the slowest from the N3 runs, the quickest N3 100-0 time was 4.10.
Overall
Autocar 11.84
N2 = 12.60
N3 = 11.88
The N2 overall time was within 0.76 seconds, which is very respectable in its own right, particulalry the 100-0 time; however the N3 time was 0.04 seconds adrift which is quite frankly amazing. Nail the braking (which in theory could gain 0.1 seconds from my best 100-0 figure) and this time would be on the money.
To remove the human element I also look at he overall figures without the reaction time in place.
Autocar = 11.57
N2 = 12.38
N3 = 11.62
Still very close, with the N2 within 0.81 seconds and the N3 within 0.05 seconds.
60-0
The final test was from the Autocar roadtest on the C12S.
Autocar = 2.7
N2 = 3.22
N3 = 2.84
The N2 time here is adrift, by 0.52 seconds, however the N3 time is out by only 0.14 seconds.
Conclusion
The first one is that the closest tyres to 'real' in terms of stright line acceleration and deceleration are the N3's, also that with these fitted the GT4 Zonda is very, very close to its real world version.
I did run a quick couple of laps around the Grand Valley Speedway just to see how it handled on the track, with the N3 tyres fitted.
This was quite telling, as the car has the same issue as the Ford GT. Nothing wrong with the brakes, the car is just stupidly powerful and capable of amazing acceleration. Which leads to very high corner approach speeds that require earlier braking distances.
A good example of this is the final sweeper through the tunnel at GVS, this can be taken at approx 75 mph on N3 tyres, if you wait until you are actually in the tunnel (just with the Zonda) you're approach speed is around 120-130 mph. Sheading 55mph in that short a distance and setting the car for the corner is just not going to happen. The cars speed requires you to brake earlier, or fit much stickier rubber.
Regards
Scaff
BTW figures added to the 0-100-0 database found
here
.
