2G Fresh build tune

[775TSI]

Just rebuilt my entire engine top to bottom. While trying to dial it in at idle before I go break it in I can't get airflow per Rev right. Adjusting comp sliders seem to do little to nothing until I get up above +40 points which seems high. I have 272 cams BC springs valves wiesco pistons eagle rods and crank hta68 and FIC 850cc with all supporting mods. My airflow prev won't go below .30gms what am I missing? Global and deadtime are set idle AFR is 14.7-15.2

 

[blktalon3]

From the ecmtuning wiki:
You'd expect to see 0.24-0.28 g/rev for AirflowPerRev at idle 1), but I don't get too caught up on that if the fuel trim is inline and global fuel settings make sense for the injectors that are installed.

Mine is the same way. It hovers around .30-.32. Everything else is in line and runs good so I don't worry about it.

 

[775TSI]

I got it to .27 but I had to set my deadtime to 750 on 850cc injectors. AFR cruise and idle sits around 14-15. Will be doing Lo Mid tomorrow.

 

[donniekak]

Don't sit there and play with the idle tune forever, the rings won't seat well.

If the afrs are reasonably close to what you are commanding, go break the engine in. After a few pulls of boost followed by engine braking vacuum, go back to getting the tune dialed in the last few percent.