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Thread: TBSS Tuning....

  1. #11
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    Quote Originally Posted by 1BadAction View Post
    Like I eluded to in the previous post, in my own mind, I can't justify tuning in the heat of the summer. I would rather do it now and let the IAT and other heat based tables do their job in the summer (obviously tweak them where needed). Then I know for sure when it gets cold again, as rare as that is here, that I'm not leaving anything on the table.
    FYI - When I dyno'd, I saw massive KR at WOT on the first run. In addition the IAT table (1st run was 86 degrees, the rest were at 81 degrees) was also pulling timing at the same time between 4000-4800 rpms. Total timing was 13 degrees at WOT! Once you drive it in hot weather where the temps soar you will notice a big difference between cold and hot temps because of how much spark those tables are pulling.

  2. #12
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    Damn, I knew it was bad, but not that bad. When its hot down here, these trucks are lucky if they are as fast as an I-6. LOL. I've already cut back some on the IAT table (I think it was removing 16 deg max, I cut it to 10, max), how much I need to change it from where its at remains to be seen. I'm contemplating capping off the spots in the maf plug where the IAT wires go and relocating a seperate sensor with a new plug to the intake, but I don't know, I may just tune it as it is.


    2013 1SS/1LE Blue Ray Metallic Camaro - DD
    1991 2500 Suburban - Roller cam'd high compression 454ci BBC tow monster
    1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
    1984 18' Contender Tunnel/2.4 Merc ModVP

  3. #13
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    1BadAction, know this is an old thread, but would you mind posting your trans file up? Im running 50% TM and slightly quicker shift times and a little more line pressure and like it for now, but when Im going 30mph and punch it, I get a downshift to 2nd, pause, then down to first. My 02 drops straight from 4th to 1st, instantly.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  4. #14
    Member 1BadAction's Avatar
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    The downshift/upshift tables on these are touchy. Let me get my laptop fired up and I'll post it.


    2013 1SS/1LE Blue Ray Metallic Camaro - DD
    1991 2500 Suburban - Roller cam'd high compression 454ci BBC tow monster
    1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
    1984 18' Contender Tunnel/2.4 Merc ModVP

  5. #15
    Member 1BadAction's Avatar
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    lets see... this was changed 3/3, which should be my latest. keep in mind that I tow with this tune, and I like the factory shift patterns for the most part. I did do some work on the 2>1 and 1>2, which works awesome...
    Attached Files Attached Files


    2013 1SS/1LE Blue Ray Metallic Camaro - DD
    1991 2500 Suburban - Roller cam'd high compression 454ci BBC tow monster
    1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
    1984 18' Contender Tunnel/2.4 Merc ModVP

  6. #16
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    I think when I can (read this summer) Im going to get my TCM setup a few ways. Have a drag/race tune that has 0 TM, fast shifts, high shift points. Normal DD tune and maybe a tow tune if I deem it necessary. Might have the DD and tow tunes identical but add a little TM back in to help the trans out.

    Thanks for the file, Ill look at it tomorrow when Im fresh. Spent a few hours playing with my network tonight and Im almost delirious by now! Did get the 20s back on the SS today though, looks so much better with them than my 17" winter rims (regular TB LTZ rims)!
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

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