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Negative timing while shift

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Old Jul 27, 2012 | 09:04 AM
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urdone's Avatar
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Default Negative timing while shift

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?
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Old Jul 27, 2012 | 09:32 AM
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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?
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Old Jul 27, 2012 | 09:37 AM
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little more details please...
year model?

Sounds like TM
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Old Jul 27, 2012 | 10:39 AM
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I've seen that before. And nonnie is on the right track its TM
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Old Jul 27, 2012 | 11:31 AM
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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.
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Old Jul 27, 2012 | 12:43 PM
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Its just the ECM or TCM pulling timing for Torque Management.. all of them do it. the 99-02s did it pretty bad.
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Old Jul 27, 2012 | 12:52 PM
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Mine did the same thing, you need to adjust the TQM under the TCM. Post up your tune if you can.
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Old Jul 27, 2012 | 01:30 PM
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Ok i will in couple hours when i get my lap top.

Thanks...
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Old Jul 27, 2012 | 02:55 PM
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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.
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Old Jul 29, 2012 | 10:43 PM
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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
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