I recently installed GSC S1 cams on my Evo 8 and they work great on boost but during idle they are rough. Here couple thing that bug me:
1: During restarts after driving around, the car doesn't start aswell, sometimes it almost wants to stall and I have to give a little bit of gas.
2: When I am driving, and I am off the gas and the car is still in gear when the rpms get to 1500 or lower the car jerks a little bit but not all the time.
3: Also I noticed after my tune, my a/f stays in between 13.8 to 14.1

My question should add more fuel in the lower rpms or remove some? Also any other things I can change to help out the idle and better driveability in the lower rpms?

 

you could bump up your idle settings

 

At idle your A/F is a little rich. At idle in my 9 with stock cams its at around 14.7-15.2 on 93 octaine. I would say bump up the idle 100-200 rpms and see how that goes. If you dont want your car idleing that high maybe try leaning it out just a little bit.

 

I am using the AEM UGEO wideband or what ever its called.

 

Some controversy in this thread but I have had excellent luck with the methods I outlined here

https://www.evolutionm.net/forums/sh...d.php?t=212337