This strategy works because when in open air, Car A's laptime is faster than Car B during the time period between Car A's pitstop and Car B's pitstop (or, conversely, Car A has traveled more distance than Car B in the same amount of time). The Under-cut : The under-cut is where Car A pits earlier than Car B, exploiting the benefits of a clear track to pass Car B when Car B pits. You have two race-management strategies to use to overtake Car B: Car A is slightly faster than Car B, but Car A is unable to pass Car B. Let's assume Car A is about 1 second behind Car B. Utilize race strategy with under-cuts and over-cuts Tire stint length = 90% / 6% = 15.00 laps, and will need 20.25 laps of fuel to use the Overtake engine mode for the entire stint. Any fuel amount greater than 17 laps is unnecessary weight and lost time on track.ĭriver B, because of his better smoothness, can go longer on the Soft tires. įrom this, you could either fill up with 17 laps of fuel and be a little bit slower (heavier car), or you can fill up with 16 laps of fuel, knowing that you need to lower the engine mode for a couple of laps to avoid running out of fuel. How much fuel should be put in? Assuming a 12-lap stint and Overtake engine mode fuel usage (1.35 fuel per lap)įuel amount = 12 * 1.35 = 16.2 laps of fuel. So Driver A will do a 12-lap stint on Soft tires. Tire stint length = tire life (100% - cliff percentage) / tire wear per lap Driver A's strategy will be determined by how long the Soft tires last. Let's assume that you want both drivers to use the Attack driving mode & Overtake engine mode for the start of the race, and start on Soft tires. Both cars use the same amount of fuel per lap, let's say 1.35 fuel per lap on Overtake and 1.08 on High. Driver B has a higher Consistency rating, so his wear rates on Soft tires are 6% on Attack and 4% on Push. So, going back to the 12-lap stint example from before: Let's say in practice, you discover that Driver A wears down a set of Soft tires at a rate of 7% per lap when in Attack mode, and 5% in Push mode. This data will be very useful when setting up your pre-race strategy. This will help you understand how long the tires & fuel will actually last based on your drivers' consistency & smoothness ratings. See how these numbers change when you switch driving modes or engine modes. When you are doing your Race Trim or Qualifying Trim laps, also keep an eye on the fuel and tire usage per lap. The Setup screen will give you a general indication of how long the tires will last, but you can verify this yourself during Practice. It often does not seem like a very significant number-usually only a few hundredths of a second per lap-but if you over-filled by 6 laps, your car could be anywhere from 0.3 - 0.5 seconds per lap slower over an 11-lap race stint. Over-filling will also make you slower (by the time difference per lap of fuel on the Fuel screen). If you are always filling up the fuel tank to the maximum, you may find that you're not using all of the fuel before you pit for fresh tires. So, for example, if you know that your Soft tires are only going to last for 12 laps before they fall off the cliff 10%, you should fill your car with enough fuel so that it is almost empty when you make your pitstop. from pitstop to pitstop) and fuel the car accordingly. Match fuel level and tire wear to stint length In a series where refuelling is allowed, it is important to know how long your tires will last during a race "stint" (i.e.
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