Turbo S50 running super rich at WOT input needed.

[ak-]

Is purple AFR? The graphs you uploaded are pretty fuzzy so it's hard to make anything out, but how rich are you under boost/full boost?

Does the 7 at the end of R5671A-7 mean it's heat range? If so, that's probably the best you can use on these 24v turbo motors.
I'd make sure they aren't fouled, put the gap at .020, raise the boost by a pound if your AFR's are under 11, and send them the log. 0.018 is as small as you should go on the plug's gap.

[BMW_TUNER]

Throw more boost at it till the AFR's are nice.

Just kidding. Base tune = safe tune, so maybe it just needs fiddling to perfect. Do they do live/remote tuning?

I have the burner so they can do revisions based off of my data then send me a revision and I can make more pulls. I am wondering if my spark plugs are tapped to tight NGK R5671A-7 (stock 4091) gapped to .018.

[ak-]

Throw more boost at it till the AFR's are nice.

Just kidding. Base tune = safe tune, so maybe it just needs fiddling to perfect. Do they do live/remote tuning?

[BMW_TUNER]

So I am currently in the trouble shooting and shake down phase of my build and I have a few logs that I could use some input on. They are both third gear pulls. I have leak tested the entire system at 25 psi down to the smallest seep. It is OBD1 and throwing no codes. I am wondering if there is anything else I should be looking at other than the tune being super fat as a cause for the super rich condition at WOT. It is currently just a base tune from Technica.





Oh and I almost forgot. I do live at almost 5,000 ft above sea level if that helps.