Here's mine for XRT, which I call awesomesauce. Don't be fooled by the name. It's just a way to make you just want to download it. (I'm not a very creative person, therefore that name) I made it sound a bit like a tuned car, but I couldn't find a way to make it sound like I wanted without making it clip.
Just find this place out and god there's some good sounds
still I found this for a new way to annoy my opponents by making my own, very loud and annoying sounds
The blow off valve was taken from an actual bmw s50 turbo engine and using acid pro 6.0 I created a sound clip then loaded it into lfs to create this engine sound aswell as other sounds were made this way aswell.