It will always play when releasing throtte, and be louder the higher the rev is when releasing throttle. This is so we can have a typical blow off valve sound that is not looped or dragged out. I dont know if im missing something, but seems to work in my head. So no matter if we are in neutral or any gear it will sound more and more the higher we rev on the OFF throttle. Maybe due to it not being added properly yet of course.īut couldnt you work in a wav file that have this function below when OFF throttle: For example the new Huayra from inside cokcpit you can hear it in the real one, and when i tried to add a more typical pronounced blow off valve sound i cant hear it. I can see in some cars there are blowoff.wav sound, but when i try to add a typical blow off valve sound to that file i cant hear it when revving up and releasing the throttle.