Fosscore's 2013 Suburban LTZ Build Thread

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Fosscore

Fosscore

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See post #480 for after tune details. This is the tune I requested.

  • 89-87OctECM - Engine computer tune designed for optimal use with 89 or in some cases 87 octane as well.
 

PG01

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I think it may depend on the which tune you request. I think @07Burb has that feature, but he may have a different tune loaded.

This is off the Black Bear website regarding tunes.

http://www.blackbearperformance.com/autocal_management.asp

Common Tune File Names and Descriptions

Below are a list of some of the most commonly used file names and basic descriptions associated that we will provide for customers.
  • "ECM", "TCM" - Refer to Engine Control Module and Transmission Control Module respectively. Those vehicles with separate computers for each will have separate tune files for each which must be programmed independently.
  • StockTune, StockECM, StockTCM - All refer to OEM factory tune files. To revert to factory configuration, program all files with "Stock" in the name onto the vehicle.
  • 89-87OctECM - Engine computer tune designed for optimal use with 89 or in some cases 87 octane as well.
  • 91+OctECM - Engine computer tune designed for 92-93 octane with acceptable operation on 91 octane as well.
  • ModTCM - Transmission computer tune designed for all around shift patterns and response improvement. Tow/haul shift functions will remain unaltered on truck platforms.
  • SportTCM - Transmission computer tune designed for more aggressive shift patterns and response. On 4 speed trucks, this is primarly accomplished on the tow/haul option only.
  • EconTCM - Transmission computer tune designed for more economical shift patterns. Throttle response may suffer as a result.
  • 89-87OctTune, 91+OctTune, ModTune - Vehicles with a single engine/transmission computer with standard shift pressure/response improvements. Tow/haul shift functions will remain unaltered on truck platforms.
  • 89-87OctSport, 91+OctSport, ModSport - Vehicles with a single engine/transmission computer with more aggressive shift pressure/response improvements. On truck platforms, this will take place of the tow/haul shift pattern.
His is a 4 speed trans, as is your tahoe, maybe they are able to tune 4spds to tow/haul a** and the 6’s cant be tuned that way, like your burb.
 

07Burb

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Yeah mines a 4 Speed and I have my tow/haul button programmed to the “sport tune” is what they call. I’ve used it a few times and it makes a huge difference even over the tune we run normally. I’m pretty sure my wife doesn’t even know about the tune when you press the tow/haul button lol
 
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Fosscore

Fosscore

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Yeah mines a 4 Speed and I have my tow/haul button programmed to the “sport tune” is what they call. I’ve used it a few times and it makes a huge difference even over the tune we run normally. I’m pretty sure my wife doesn’t even know about the tune when you press the tow/haul button lol

Thx man. That’s the way the Tahoe is setup and I drive it with the tow/haul button engaged all the time.

The wife has not said boo about the tune yet. Not sure she will even notice.

Maybe I should sneak a Black Widow on there just because...
 

adventurenali92

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The “sport tune” was an option for my 4 speed, but I left it as tow haul, as I tow with my Denali. But the regular tune in my truck is night and day difference in how my truck drives! I agree with @Fosscore , well worth the money for the Black bear tune!
 
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Fosscore

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So this just happened. Grrrr.

Went out to clean up the corrosion on the positive battery terminal this evening.

While trying to remove the positive cable from the post, the post pulled out.

So I need a new battery now.

Thoughts about a replacement?

It had an AC Delco 48HPG, 660CCA. I have access to all the auto parts stores.


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