I took down the stock air filter and the box because i wanted to hear the noise while the turbo spools up. (Mondeo mk3 2002 TDDi 115hp)
Without any filters or box, there is no sound when the turbo draws air.
I heard from another TDDi, same engine same year the loud and thick sound without air filter and box.
I put a "sport" air filter but the sound is the same.
I was expecting, hearing from the others to be louder and thicker, that sound when the turbo receives a lot of air.
What can be the problem?
Without air filter the same engine sounds different..
PS: the turbo spools good, the car is running good, it pulls good. It's remapped.