Need Help! Urgent!

[igorsm]

Car is built 427cid ls3 2010 Camaro SS with 6AT.

Everything is perfect, except one problem.

When I hit the trottle in "D" from stand to about 3000rpm and hit the brakes hard - car stalls...
Are there any parameters in 6L80E that control clutches disengaging?

Torque converter is Yank SS2800.

Car is tuned very well. Have every calibration in place. Fuel, spark, VE, fuel trims. Has agressive proportional airflow tables (when rpm goes down).
Final airflow minimum is dialed in right too...

Please help.

[IDRIVEAG8GT]

Sounds like you need to adjust the Minimum Idle Airflow tables.

[thesubfloor]

Car is built 427cid ls3 2010 Camaro SS with 6AT.

Everything is perfect, except one problem.

When I hit the trottle in "D" from stand to about 3000rpm and hit the brakes hard - car stalls...
Are there any parameters in 6L80E that control clutches disengaging?

Torque converter is Yank SS2800.

Car is tuned very well. Have every calibration in place. Fuel, spark, VE, fuel trims. Has agressive proportional airflow tables (when rpm goes down).
Final airflow minimum is dialed in right too...

Please help.

While the airflow tables might have been configured properly for the stock converter, they'll need to be adjusted due to the looser 2800. The reason for this is that with the tighter converter as you're slowing down it's actually the transmission that's keeping the RPMs up, similar to what happens with a manual transmission while you're downshifting to come to a light. With a looser converter you tend to lose some of that engine braking effect and need to compensate for it in the airflow tables.