Odd shift behavior A6 scaled tune

[HoP]

After a scaled tune in a 2010 GS the transmission shifts very funny, delayed and hanging. I know there has been talks about certain parameters that need to be scaled. Is anything working? Thanks!

[DSteck]

Don't scale the long way. Cut the IFR in half and double the stoich AFR.

[NTIMID8]

More importantly, why is he scaling it anyways...jeez

[carlrx7]

yea, pretty sure unless he is using injectors over 127lbs, no scale is needed

[HoP]

More importantly, why is he scaling it anyways...jeez

Scaled the tune because I pegged the MAF. Injectors I'm not worried about, you hit the ceiling on the MAF and it's game over....jeez

[carlrx7]

you hit 15,000hz? or the 4000 g/sec? lol

[Asylumwarp]

wow... I had to scale the transmission tables anything with torque related pressures and things. Just move accordingly.

[IDRIVEAG8GT]

How in the hell did you peg the MAF?! Better be making way more than 1,100 horses .

[HoP]

Look at the log I just posted up. The Maf pegged at 86.69 lb / min. When this happened the car just goes lean. It would not keep the commanded AFR at wot, you can see that by the O2 sensor readings. After scaling it was perfect.

Something to take note of. This is a blown car and the MAF tube is only 3.5" i.d.

[DSteck]

You do realize the MAF PID is limited to 86.7 lb/min, but the dynamic airflow will keep going... right? No need to scale a newer car. You can go to the moon on airflow.

[HoP]

You do realize the MAF PID is limited to 86.7 lb/min, but the dynamic airflow will keep going... right? No need to scale a newer car. You can go to the moon on airflow.

No I didn't know that..... I did a search for maf pid pegging and that brought back 0 on a search result. So what good is a pid / scanner if it does not scale to what the ECM actually shows?

Thanks for letting me know

[DSteck]

Dynamic airflow.