please help to translate japan to english from japan video

[Re-VolveR]

http://www.youtube.com/watch?v=xKB0bFwlCIU&feature=related
6:45 - 7:12
what is this modification?why?

 

[DeanS15]

Just looks as though he's bypassing the idle control valve or allowing it to flow more air in at idle... Can't translate though. I too would be interested to know why...

 

[s15gt]

the gist im getting is this smoothens out the idle.
im going to try it out

quick question guys what rpm does your s15 idle at? mine is around 850-900 and id like it abit lower but the IACV screw is maxed out.
i know putting a restrictor in the 10mm vacuum hose will drop it.

 

[S15_SAM]

It's got to be something to do with the new cams maybe to settle the idle??!

 

[Re-VolveR]

can someone translate japanese subtitles on video?

 

[Aurora61]

what hes saying is that the engine isnt running smooth due to low idle after the tune. Even after fully opening the AAC valve (to increase idle), the engine revs arent high enough. Therefore, he slightly widened the hole to fix the problem.