RAFIG Idle Users Inside

[jsttry]

I've logged RAFIG for my M6 Commodore, but it seems a little odd as the RAFIG values are up too high in the table. ECT is normally around 88-90C, never do I see the 92-140 in the RAFIG Map. Any idea why this could be?

[Tordne]

I've logged RAFIG for my M6 Commodore, but it seems a little odd as the RAFIG values are up too high in the table. ECT is normally around 88-90C, never do I see the 92-140 in the RAFIG Map. Any idea why this could be?

It's not just a case of one map accidentally using ECT in *F units is it?

[jsttry]

Duh, yep that was the problem. Was 3am in the morning when I made the MAPs a few months ago and didn't even think of looking at F vs C. Thanks

[oztracktuning]

What difference does IAC Park make to driveability - does it complement the RAF table?? I know its a slightly different topic - but i am not sure mine is set right.

[ringram]

Good question flyer.
My take on it is that its sets the IAC at Key ON and Key OFF so that startup and kill happen ok. Kind of like holding the throttle down a bit when cold and turning the key...
Of course this might be wrong..!?

[SSbaby]

I'm a little confused by my RAFIG results... what do negative values mean in the RAFIG MAP? Does it mean I have to subtract the RAFIG values from the corresponding cells in the Desired Airflow table or do I need to add these values to the Desired Airflow table.

The reason I ask is if I lower (i.e. subtract from) my Desired Airflow values from the current calibration, I suspect my engine will stall. Hence my confusion.

e.g.

I've only got 5.7 g/s Desired Airflow at 92* ECT, my corresponding RAFIG value at that temp was -1.4 g/s. If I then adjust my Desired Airflow value down to 4.3 g/s there's a likelihood my engine will stall. Should the 1.4 g/s be added to 5.7 instead?

[oztracktuning]

I used RAFIG and if negative i subtracted - if positive i added.
But now it is around -0.5 and is happiest there. So iguess desired airflow is above the amount that spot on.

Im not sure this is the best setup - but it seems to be working.
Idling slow seems to be helped by changing things to get AFRS as stable as possible and under 15.0 - mine is nicest at the moment in the low14s.
To do this i also tweaked the offset table at the different voltages that are experienced during idle from the log and i did this only in the pressure levels that happen at idle. This seemed to help but may also not be the best thing to do.

I have not really had any success yet with throttle cracker other than turning it off at appropriate places helps it smoothly transition out of DFCO.

Throttle follower i havent tweaked successfully yet - only have made small adjustments.

[oztracktuning]

My desired airflow values are around 9.8 with an idle in gear at 800rpm. Out of gear at 650 its 8.9.

If its too high i think the car will just have too high an idle. I think it might be better to start higher and then lower it and see what happens.

[SSbaby]

I've got my idle set at a lowly 900rpm (cammed M6). Does RAFIG work better at a higher idle speed, say 1000rpm?

[joecar]

Flyer, good bit of research there mate, could you post some charts images.

Thanks
Joe