Car sound sometimes change

Hello

I've a question, sometimes and only with covet/pessima/200sx (same sound) and with vtec mod (sound like same but rev higer), after up gas pedal and throttle again the sound change a bit.

It happens arround 10% of case.

Here 2 video, the first, sound ok, changing, and ok again, on the second, sound ok and changing (shorter than the first)
Therefore the sound changing is more loud in real situation than theses recordings






Thank you

 

I don't notice anything unusual here. Do you mean the revs surging when you catch air?

 

Sorry I'm French and I don't really understand your second sentence, what do you mean?

Try to hear at the second video, the sound rev at 0:10 and at 0:18, the rpm are the same but the sound have change.

 

Yeah, that sound change is because your car is slightly lifting off the ground. This means there is less load on the engine, because the wheels are not touching the ground, so the engine "surges".

 

It is not a bad idea, I'll made another tries.

If I good understand, the sound change with the engine load? It's the first car game that devs think about that