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  1. Replies
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    120

    Not hardware wise that I'm aware of. Did you...

    Not hardware wise that I'm aware of. Did you happen to read the TCM before you flashed it. Knowing the segment numbers that were in it might give a clue to what year TCM it is. My experience with new...
  2. Way too much duration for a 5.3L. I've always...

    Way too much duration for a 5.3L. I've always said everyone needs to over cam an engine at least once in their life so they learn not to do it again. I did mine back in 1972 on a 8.5:1 350 chevy.
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    120

    Are you saying you flashed the crate 6L80 with...

    Are you saying you flashed the crate 6L80 with what you read out of the 10 Silverado 6L80 TCM? There are 4 different part # TCMs used from 07-18 and maybe newer. 10 and 11s used 24275874. You need to...
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    Well aren't you special.

    Well aren't you special.
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    809

    If there is a 1 bar SD COS available update your...

    If there is a 1 bar SD COS available update your OS to that. It eliminates the secondary VE and you can still run a MAF/VE blend with it.
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    Because it is a F-body not a truck/suv. That is...

    Because it is a F-body not a truck/suv. That is how the stock table is on those.
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    2002-04 Z06 makes 405 HP with the same injectors....

    2002-04 Z06 makes 405 HP with the same injectors. My own 99 F-body made 400RWHP with those 02 injectors and ran high 11s with a 224/228 cam shifting at 6500 rpm. They are rated at 28.7 and a little...
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    No one even knows the year of the vehicle with...

    No one even knows the year of the vehicle with the few details you provide. And even if they did there is not one stock calibration to start with that would be correct for your vehicle. You have much...
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    Any change will change the CVN.

    Any change will change the CVN.
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    171

    HP Tuners is using the 8th digit of the VIN to ID...

    HP Tuners is using the 8th digit of the VIN to ID the engine type. That is all.
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    Does your emission test station check the CVNs...

    Does your emission test station check the CVNs for all the modules? If it does it will fail with the CVNs for the segments you swapped regardless of the VIN. Emission tests that check CVNs require...
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    171

    I would add click on Gather Info before you...

    I would add click on Gather Info before you select Read. That vehicle probably has a FSCM that if you read that module with the ECM and TCM it will cost an additional credit on top of the two you...
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    705

    Auto or manual? If auto I hope you put in a...

    Auto or manual? If auto I hope you put in a minimum 3600 stall converter with that cam.
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    Disabling the lockup prolongs the life of the TC...

    Disabling the lockup prolongs the life of the TC lockup clutch on 6L80/90s. That is their weak point for total transmission failure. Ask any transmission shop that rebuilds them. I have a few local...
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    305s are very susceptible to spark knock on 87...

    305s are very susceptible to spark knock on 87 octane gas, especially if you eliminate the EGR. Keep an eye on KR if you add any timing and lean out the PE. More timing with a richer PE will be...
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    201

    Correct. You might want to use a bench harness if...

    Correct. You might want to use a bench harness if you bricked the original programming it in the vehicle. Do you have an aftermarket radio or remote start or alarm installed in the Suburban?
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    03-05 ETC hardware/calibrations are not...

    03-05 ETC hardware/calibrations are not compatible with 06-07 Classic ETC hardware/calibrations. If you saved a copy of the 03 Suburban stock calibration just write entire to the 06 Silverado PCM....
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    If you go to this site...

    If you go to this site https://tis2web.service.opel.com/tis2web/ and enter your VIN and look at the complete history for your vehicle the PCM should have been updated at some time after production...
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    Without knowing his VIN you can't say that OS is...

    Without knowing his VIN you can't say that OS is an update for his vehicle. And if it is there are a lot of M5 calibrations that use 12587603.
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    What is the VIN of the vehicle? I would almost...

    What is the VIN of the vehicle? I would almost bet there is an updated OS for it.
  21. Those separate Allison TCMs are kind of wonky. I...

    Those separate Allison TCMs are kind of wonky. I usually don't change anything in them.
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    How about a year make and model. I doubt there...

    How about a year make and model. I doubt there are very many people that have every OS number memorized.
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    Direct from HPT in case there is a problem....

    Direct from HPT in case there is a problem. Should be the same price.
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    They are all over salvage yards here for $20. If...

    They are all over salvage yards here for $20. If it is DBW you can put any blue/green calibration in any blue/green box. You can look for the same service number one but it is not absolutely...
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    Stock 7.4L injectors are only 22 lb. If your IDC...

    Stock 7.4L injectors are only 22 lb. If your IDC is that low it might not be entering PE. There are huge PE delays GM put in their calibrations to go along with their low stock timing.
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