Understanding these results:
The most important thing is to compare the acceleration times indicated by this simulation with the times obtained on the track, for the initial and final RPM range entered, on a straigh track at full throttle.
If the indicated time is less than the time the vehicle actually has on the track, then it is convenient to increase the inertial mass to give it more inertia and consequently more time.
If the time indicated in the simulation is significantly greater than the time the vehicle makes on the track, then the simulated dyno is heavy. You have the option to build the lighter roller, or it will also be possible to use it if you roll in a lower gear. To simulate the roll in a lower gear, enter the cutoff speed that you would have in a lower gear. For example, if the cutoff speed in km/h was loaded for 5th, try entering the cutoff speed for 4th or 3rd gear.
Results are approximate. There are several data that have been estimated, such as power losses or the shape of the power curve. For this reason, the results should be taken with caution.
In any case, the tolerance is very wide. In other words, even though the acceleration time in reality is very different from the time in this simulation, it is very likely that the performance of the test bench is very good. Take special care when the acceleration time is less than 2 seconds, since we are in an area where the motors can have erroneous behavior. The same happens if the acceleration time is very long compared to the acceleration time that the vehicle has on the track.