HomeUser ManualLap time based fuel simulation

Lap time based fuel simulation

Please note: this feature is part of a chargeable add-on which can be purchased from within the app. To purchase it, open the “add-ons” dialog from the main menu in SmartRace. If you would like to know more about in-app purchases in SmartRace, please look here.

What is the lap time based fuel simulation?

As the name suggests, the lap time-based fuel simulation (LTFS) simulates the consumption of the cars based on the lap time driven. The consumption is calculated on the basis of the deviation from the (adjustable) reference lap time. If the reference lap time is exceeded, consumption increases; if it is not reached, it decreases, meaning the faster you go, the more fuel is used.


Please note: The lap time-based fuel simulation can only be switched on and used in conjunction with a Carrera Digital track if the “Fuel” switch on the Control Unit has been set to “off”.

To use the LTFS, you have to activate it under Settings > Consumption simulation. You also have to define for which event types (free practice, qualification, race) the RBSS should be used.


  • Consumption in % per lap: Here you set by how many percentage points the tank should empty per lap (depending on the lap time driven).
  • Reference lap time in seconds: If a driver drives this lap time, his fuel level decreases by the set percentage value.
  • Deviation Impact: Here you define how strong the effect of faster or slower laps should be. With the default value (100%), the effect runs parallel to the deviation. A lap that is 10% faster than the reference lap time increases the set consumption by 10%, while a lap that is 10% slower decreases it by 10%. The higher the percentage value, the stronger the effect: A faster lap is thus more “punished” by increased consumption, a slower one more “rewarded” by lowered consumption.
  • Refueling in % per second during pit stop: The fuel level increases by the percentage value set here every second during the pit stop.
  • Should cars with an empty tank be slowed down automatically: Lowers the speed of cars with an empty tank to the minimum level when switched on. This setting has no effect in analog mode.
  • Should laps of cars with empty tank be counted: If switched on, laps of cars with empty tank will be counted normally. If switched off, these cars will be excluded from the lap counting.

Usage in analog mode

The lap time based sprite simulation (LTFS) can also be used in analog mode. To do this, the hotspots must first be fixed. Then a vehicle that stops in the hotspot can refuel according to the settings explained above.

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