Super-Cheater K04

[impossible]

GroceryGtr is your bottom end built? If not then stop bothering with chasing 'instant spool' turbos.

[zenit]

Update:

Super-cheater K04 works great, and flows ~46lb/min or 4 volts on a 4" htp intake.

I've run into a tuning problem that I can't make heads or tails of.

In high 30lb/min & >3.5 maf volts the car has trouble keeping up and is doing some weird fuel trimming which results higher requested lambda/AFR's(see attached log).



I must be missing something, but I not sure what. I recreated my tune, based off a high load OTS map in versatuner, but still have the issue.

[zenit]

still seeing fueling not meeting targets, not sure why.
I redid the map in a different OTS tune in versatune with 93 for the larges amount of fueling overheard possible.

Not sure whats up- logs show WOT Fuel trimming still, and some random desired AFR's of 1.0/0.99 (car seems to ignore this).

3 logs attached, with tune (zipped due to file extension issues).

[zenit]

Update time - super-cheater can haz 400hp

except I just noticed in logs from about a month ago:
brief/relevant mod list-
SURE Intercooler, Autotechs, 4" htp intake, 3" catless DP



For the sake of the rods and ringlands, the wgdc is going way down now that I've hit my self-imposed target power figure. That massive drop in power after the peak is due to the lean condition.

I still haven't figured out the fueling issue, but I did stumble across this issue in a recent thread revival:

Post-spool lean condition

Most notably, this nearly perfectly describes my problem:

Originally Posted by rfinkle2

the proposed treatment is time- at this current moment I don't have a hardware or tuning fix for this, but most have reported that this goes away with time.

[Jeff23spl]

I revive that old thread to ask if you made any progress with that turbo ?