Okay so recently I came across perfect samples of a Lexus LF-A sound. It was made for TDU, which uses a very similar engine sound system to GTA. (low rev, high rev, idle etc.)
These are the samples I'm using:http://www.youtube.com/watch?v=V8E7DaWfuyw
As you can hear, it sounds perfect in TDU.
What I did then is make the samples exactly the same like the GTA IV car sounds, and still it sounds like I'm driving a hairdryer or a mosquito. I tried using only low rev sounds or only high rev, or both in the correct form, but nothing. The only thing I can get right is the idle sound.
Does anyone have any experience in sound modding?