Originally Posted by
R8Bill
Murf, say you are running a Boss intake (no IMRC) on an S550.......Do you use Map-1 for idle, or close off all maps from 0-13 and use Map 15 for idle? If you use Map 15 the intake needs to change from 30 to 20 degrees. This helped a lot on mine but still has some idle surging but not as bad as before. On my setup I only run maps 14+, but I haven't tried to turn on Map 1 for idling for optimum stability only. It might be map-1 runs better because it has different speed density values, etc. I will give it a shot and see how it does. Your thoughts on this?