Adjusting idle on r33 power fc

[Ty1]

Hey guys I've done a search on google but can only find so much. Since you can adjust the idle on the pfc hand controller, does that make the idle adjust screw on the aac valve redundant? Mine is wound all the way in at the moment and my idle is sitting on around 830rpm which I'm satisfied with. Just wondering if theres a negative affect by having that screw wound all the way in. Cheers!

[GTSBoy]

Depends on how far open the AAC valve is.  If that was 90% open, to compensate for not having any base flow through the screw, then your idle control system won't have much scope to increase the idle when it really needs to.

Unless you have big cams, you should consider controlling the idle speed back to ~600rpm.  You will surprised how much fuel it saves if you spend time in traffic.