About tuning and VE tables....

[Da Burb]

Any of you tuners, can you tell me how close you can get a VE table to 1.0?
I don't want or expect any secrets to be given up but I'm just wondering what sort of importance you put in it.
I'm having some minor issues with mine (very minor) but after a couple of long, 2hr+ logs I can't get some area's into line.
Is it an issue?

Normal

http://img.photobucket.com/albums/v35/hquick/VETable.jpg

High res

http://img.photobucket.com/albums/v35/hquick/Datalogpic.jpg

[Oztrack Tuning]

Make sure DFCO is turned off and the data is filtered removing data that is gathered when throttle changes fast or when the engine is cold.
Only rely also on data cells that have counts that are large enough to be significant. If you do these logs often you will see the afrs drift on different drives depending on weather conditions etc - try to plan a strategy to account and minimize the drift.

For any of this to be significant you need to make sure the car is in full open loop as well or the o2 sensors will be trimming many of your cells to 1.00 anyway.

You need to make sure the high Kpa cells are 1.00 or less because being above 1.00 means that you have a leaner than desired condition.

Enjoy playing with EFIlive :)

[Da Burb]

Thanks Oztrack.
I have seen you over on the EFILive forum. That place is a wealth of info.
I'm also receiving help (tutoring I guess you could call it) from some of the guys over there. I was looking for opinions from Aussies.
Once I filter out the data as suggested by yourself...and I am running full OLSD at present with all DFCO's off...I end up with very little data.
I guess that's a good thing.
Also, as suggested by some others I take my foot completely off the pedal when backing off...so as not to get those rich/lean spikes.
My main area of concern at present is the sudden lean spikes after I get off the pedal and then gently apply the Accel again.
Usually between the 2000 and 3000 rpm range and the 25 to 45 kpa range.
I've been messing around a bit with the multipliers for IAT and ECT with some results also.