urdone

iTrader: (1)

Hey guys im new to the turbo system, I was asking myself if its normal that the timing goes negative while shifting. My timing is at 9,10 on 6 psi but when it shifts it goes negative 9, 10. Is this normal?

03sierraslt

iTrader: (22)

Without seeing your tune I can only speculate. Do you still have torque managment active? What are the details of your setup? Who tuned it?

nonnieselman

iTrader: (10)

little more details please...
year model?

Sounds like TM

2007chevy5.3l

iTrader: (21)

I've seen that before. And nonnie is on the right track its TM

urdone

iTrader: (1)

2010 5.3 stock with a 76 mm turbo kit and a 3600 multi disk circle d.

Torque management is off on the motot still have it on the tranny (6speed)

Im tuning the truck, first time tuning a turbo truck, Was tuning the WOT part air fuel is around 11.5 11.7, i stop there due to the timing dropping when shifting.

nonnieselman

iTrader: (10)

Its just the ECM or TCM pulling timing for Torque Management.. all of them do it. the 99-02s did it pretty bad.

ak2007r6

iTrader: (1)

Mine did the same thing, you need to adjust the TQM under the TCM. Post up your tune if you can.

urdone

iTrader: (1)

Ok i will in couple hours when i get my lap top.

Thanks...

Area47

torque reduction upshift. torque management.

i left mine on for a reason. others will say it's causing slow shift times or whatever. if set up right, you will notice zero difference at wot, and on the track.

urdone

iTrader: (1)

Did't have time this weekend due to work, But earlier i tune the tranny i had the book for the 6 speed trannys here and i start it tuning. It help a lot timimg its not dropping any more i see it dropping like 2 degrees but feels way better