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  1. Change your Map sensor values to match the LT4. ...

    Change your Map sensor values to match the LT4.

    Russ Kemp
  2. Look at your misfire tables again, you missed...

    Look at your misfire tables again, you missed some areas of the medium misfire tables. And set the TCC max table to 100 & the min table to 90.

    Russ Kemp
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    Post your stock tune. Russ Kemp

    Post your stock tune.

    Russ Kemp
  4. Your downshift speeds are higher than the upshift...

    Your downshift speeds are higher than the upshift speeds. And the trans revs/mile should be 2880.

    Russ Kemp
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    Just install the replacement PCM, then using 2...

    Just install the replacement PCM, then using 2 credits, do a write entire with your tuned Sierra .hpt file. And relink the VATS.


    Russ Kemp
  6. Thread: WOT kickdown

    by Russ K
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    Your WOT downshift speeds are higher than the WOT...

    Your WOT downshift speeds are higher than the WOT upshift speeds. Downshift speeds must be lower than the upshift speeds.

    Russ Kemp
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    This is a stock tune from a 2005 Silverado 2500...

    This is a stock tune from a 2005 Silverado 2500 6L with 4.10 gears.

    Russ Kemp
  8. Hi luciddeath, tried raising the torque delta...

    Hi luciddeath, tried raising the torque delta tables. No difference in the the timing, still dropping to -8.7*

    Russ Kemp
  9. Did you try setting the ISS to 36? Russ Kemp

    Did you try setting the ISS to 36?

    Russ Kemp
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    Your WOT downshift speeds are higher than the...

    Your WOT downshift speeds are higher than the upshift speeds.

    Russ Kemp
  11. Is the speedo accurate? I get 31,470 pulses/mile....

    Is the speedo accurate? I get 31,470 pulses/mile. Also try logging the trans output rpm. To calculate the trans mile per hour, do this; (trans output shaft rpm*60)/trans output revs per mile. The...
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    Change the whole TCC lockup rate after upshift...

    Change the whole TCC lockup rate after upshift table to 650 ft-lbs,

    Russ Kemp
  13. The vehicle will be in open loop, not damaging...

    The vehicle will be in open loop, not damaging the O2 sensors.

    Russ Kemp
  14. Did you try disabling the Cat test & Cat Mil in...

    Did you try disabling the Cat test & Cat Mil in Engine Diagnostics > Exhaust?

    Russ Kemp
  15. Raise your O2 Readiness ECT. Russ Kemp

    Raise your O2 Readiness ECT.

    Russ Kemp
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    I would really think about going with the BTR...

    I would really think about going with the BTR Stage 2 cam, the Stage 3 will loose torque vs the 2 on the low end.

    Russ Kemp
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    Just solved the same issue with a 1976 Sierra...

    Just solved the same issue with a 1976 Sierra with a 5.3/4L60E with the OEM manual transfer case. Had a speed signal generator inline with the speedo cable. First got the scanner speed to match a...
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    The Comp 268 cam with a 113 LSA has a -8* overlap...

    The Comp 268 cam with a 113 LSA has a -8* overlap @ .050 and will idle very smooth.

    Russ Kemp
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    Then modify the TPS sensor to make it adjustable....

    Then modify the TPS sensor to make it adjustable.



    I never disable the adaptive idle when tuning. The Base Running Airflow is the base position of the IAC before any adaptives.



    The...
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    You need to adjust the throttle stop screw to get...

    You need to adjust the throttle stop screw to get the IAC to 20-40 at hot idle in park. The Base Running Airflow doesn't affect the IAC counts.

    Russ Kemp
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    Look at the STFT's, they are not 0. Russ Kemp

    Look at the STFT's, they are not 0.

    Russ Kemp
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    You're in closed loop. Disable CL by maxing the...

    You're in closed loop. Disable CL by maxing the O2 readiness ECT table.

    Russ Kemp
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    That's because the Corvette has a trans axle. And...

    That's because the Corvette has a trans axle. And you can't change it in the tune, so you will need to have the PCM flashed with a compatible tune from a F Body or Truck.

    A segment swap would work...
  24. You have the WOT 1-2 set at 9190 RPM, the 2-3 is...

    You have the WOT 1-2 set at 9190 RPM, the 2-3 is set to 8595 RPM and the 3-4 is set to 7332 RPM. Your PT 2-3 shift is set to 8376 RPM, the PT 3-4 shift is set to 7120.

    The Dodge shift speed tables...
  25. 2010 Challenger 5.7 A5 low WOT spark timing

    For some reason, the WOT spark timing is much lower than the WOT Base spark table. As you can see, I also set the WOT Thermal spark table and the VVT MBT tables to match the WOT Base spark table....
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