Kimi Raikkonen 2007 Pole Lap Spa-Francorchamps GT5 Comparison





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Published on Mar 28, 2012

This is my attempt at setting up the F2007 in GT5 to match the real one. The goal was to see what it would take to make a GT5 car, driven at the limit by a top driver, match its real world counterpart driven at the limit by a top driver. The test is done at Spa-Francorchamps using Kimi Raikkonen's 2007 pole lap as a comparison. My lap was a 1:45.981 and Kimi's pole lap was a 1:45.994. Enjoy!

A few notes about the comparison:

The videos are synced to the start line.

This comparison assumes a few things. First we have to assume that Kimi's skill behind the wheel in his car is the same as my skill behind the wheel in GT5. We must also assume his pole lap was the absolute maximum he could achieve. Finally, we must assume track conditions are identical.

I ran the lap in practice mode, with tire wear and fuel consumption off. Tire wear and fuel consumption are off because Kimi's lap was run with low fuel, and GT5 does not allow fuel level to be set. Below is an explaination of how I compensated for this. The tires would have been at their peak for Kimi's lap, so I don't believe that no wear would be an issue (my lap was run on cold tires so I might have been slightly disadvantaged anyways).

Kimi's pole lap was run in Q3. In 2007, the drivers had to start Q3 with the amount of fuel they were to start the race with. Kimi ran 9 laps in Q3, and an F1 car burns roughly 3.5kg of fuel for each lap at Spa. Kimi pitted on lap 15 in the race, meaning he was carrying at least 52kg of fuel at the start of Q3(15 laps in the race + formation lap + reconnaissance lap to the grid, maybe extra fuel in case he missed his lap to pit). If Kimi burned the maximum amount of fuel during qualifying, his pole lap would have been set with about 25kg of fuel on board, so I used 25kg worth of ballast in this experiment. (I confirmed the ballast to be correct by running the car without the extra weight. I was able to do a 1:44.9xx, which is very close to the 1:45.0xx that Kimi ran in Q2 with just enough fuel to complete a hot lap)

I set up the car in GT5 based on Kimi's lap. I estimated his straight line speed and used it to adjust the rear wing in GT5. I found Kimi's car had faster acceleration than the car in GT5, so there was no need to adjust the horsepower of the GT5 car. In fact, the test would be more accurate if the GT5 car had more horsepower. I estimated Kimi's cornering speed to adjust the grip of the in game car; I used low speed cornering to adjust the tires in GT5, and high speed cornering to adjust the front wing accordingly. Finally, I adjusted the gear ratios based on where Kimi was shifting. It was impossible for me to match the gears 100%; some gears couldn't be made long enough, others couldn't be made short enough, and as I stated before, the real car had better acceleration.

The final settings I used for my lap were:

TCS - 0
ABS - 1
Skid Recovery Force - off
ASM - Off
Active Steering - Off

Tires - Comfort Soft

Aerodyamics: Front - 90 Rear - 120
Ballast: 25kg (placed at the center of the car)

1st 3.939
2nd 2.731
3rd 2.028
4th 1.644
5th 1.397
6th 1.196
7th 1.009
final 6.500
top speed 224
Set the final gear first, then top speed, then individual gears

Suspension and LSD are a secret ;-) but are also dependent on the driver. Pick what works for you.


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