So I bought Billmans TCT and the noise while reduced is still there so I am thinking it might be normal idle sound? So if anyone can take a good quality video of their engine idling either from cold start or normal operating temp would be great.

 

In my video, the camera is like 10 ft from the motor. The injectors/valves are pretty loud.
http://www.youtube.com/watch?v=fD0wXdMbkUU

Some other videos.
https://www.s2ki.com/s2000/topic/935...t-controversy/
https://www.s2ki.com/s2000/topic/886...ut-isnt-noise/
https://www.s2ki.com/s2000/topic/796...the-injectors/

 

The noise on mine is weird. Not the noticeable TCT noise everyone else hears, but more like a diesel noise.