It will not allow to post the wb ben map for ve, it says its an invalid file?
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It will not allow to post the wb ben map for ve, it says its an invalid file?
Joecar?
I'm still looking at your files....
Okay
One thing that's odd is that the mad calibration is pretty good within a few percent and it turned out smaller than the factory one, I wouldn't think this is the case with a different cam but that's how it turned out
This vve shit is for the birds.. The car doesn't respond the way it should. Its like taking a shot at the dark
So nobody tunes e38s?
Any thoughts or do I start over ?
I have normally just used STFT's for adjusting the VVE. I tried using the BEN factors but my results always ended up weird looking and trims still all over the place when back in CL.
One thing to make sure is make sure you filter out any bad data - rapid throttle movements etc
Hi all,
sorry I've been absent. I've been doing a lot of long days at work.
Anyway, I've been looking at the tune and log files. Overall, it doesn't look too bad (I've seen a lot worse). In terms of fueling, the obvious issues are lean on light throttle and lean in the higher RPM range. Normal cruising is not perfect, but not too bad.
let's look at light throttle first. It doesn't look like DFCO is coming into effect, so the lean mixture is not that. Also, command AFR doesn't change so it's not lean cruise. The VVE does look a bit low right along the 2200 RPM to 3000 RPM range, so this is likely to be the culprit. I've nudged the VVE in this range to correct for this.
The second part is the higher RPM range. The VVE looked well out there as it actually dropped above about 75kPa. So I bumped it a bit more to level it out.
See if this gets you any closer. Sometimes you need use a sledge hammer to get the VVE into a basic shape before fine tuning. When it's close changes of 0.5% can make all the difference.
Simon.