1)
Use the LFS engine editor, save the sample dump valve sound [S]
Make the saved sample louder in some sound editor like Nero Wave Editor. (I've done a louder one for you if you don't know how to edit wav files.) Unzip this to LFS/data/engine/ XRT Dump Valve Big_DV.zip
Use the LFS engine editor, load the LOUDER sample dump valve [L] you just made.
i really aint got a clue about this editting stuff. will you do me a massive favour and make me one of those for the FXR please but could you make the noise abit longer when changing gear... its stead of a little ttssh.. more of a tttttsssshhhhhhhh...
How did I know you would ask me that ?
I will do a FXR - Its uses the same Dump Valve sample. As do the other turbo cars as far as i can tell.
Your loading in new engine sounds - your only one click away from importing your own louder Dump Valves. So you can do it yourself for other cars using that previous zipped wav file. Then click the [L] next to the Dump Valve volume slider.
>instead of a little ttssh.. more of a tttttsssshhhhhhhh...<
Well that's another story. I'm assuming your using semi auto gears and auto clutch. In a real car, if you changed gears in 0.4 seconds you probably would hear a ttssh as well. This is built into LFS because as soon as you drop into the next gear your engine revs are still high, thus not requiring a "Dump of Extra air". If you change gears like in a real car (releasing the throttle) and using a clutch your revs drop and you hear a longer pwsssst sound. I dont know how to get around this in LFS. And if I'm wrong, I apologise for the "bad tech car-speech"
edit: I think Tristan means the longer pwssssst sound means the car is loosing power because all that built up boost pressure is dumping into the air, which could have been used to make your car go faster.