EFILive works quite well with the MD 5 speeds, I can tell you this.
Right now I am working on another '07 C4500 with a 6 speed that is limited to being a 5 speed by the software. I am trying to undo this, do I full flash / cal flash / or just change a setting in there?
'12 Caprice PPV 6.0 L77 - daily transportation
8.7 @ 84 (1/8 mile) bolt-ons
'02 Silverado RCSB 5.3 L59 - regularly street driven
8.2 @ 86 (1/8 mile) stock cam and spray
8.6 @ 84 (1/8 mile) cam and heads no spray
Our YOUTUBE CHANNEL featuring the Silverado
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.
there should be easily accessible production GM cals to do that. maybe using a VIN for 08 4500 truck that has 6th enabled. or i suppose even a 2500 VIN and then adjust the shifts with EFIL. plus i remember reading that allison tend to be less than accommodating with such requests (refuse to enable 6th w/o some official letter from GM, etc).
Thank you for the information THEFERMANATOR though I believe vectorbundle to be right. We will know soon enough as I am doing one today. I have a local Allison facility nearby and access to all GM cals via TISWeb. I know there are vendors selling this upgrade for hundreds of dollars - I doubt they are taking each of the modules to Allison.
Without disclosing too much info (for the sake of others who may care - I am here to learn and share). This WILL get done with EFILive.
'12 Caprice PPV 6.0 L77 - daily transportation
8.7 @ 84 (1/8 mile) bolt-ons
'02 Silverado RCSB 5.3 L59 - regularly street driven
8.2 @ 86 (1/8 mile) stock cam and spray
8.6 @ 84 (1/8 mile) cam and heads no spray
Our YOUTUBE CHANNEL featuring the Silverado
I know one vendor doing it isn't using strictly EFILIVE to do his flashing. He also has the 5-6 speed conversion tunes as his software was able to read the locked TCM's.
1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.
i know i am right about doing it with a production GM flash bc i remember someone (on one of the diesel forums?) who did it. read it long ago and i was not interested in this subject then so i don't recall for sure what tune he used, probably 08 kodiak w/ 6th enabled. what's to disclose, we are talking about an OEM TIS flash. i'm just looking for a vanilla A2000 file too...
ETA: not same discussion i had read before but same story: http://www.dieselplace.com/forum/76-...tructions.html
Last edited by vectorbundle; January 5th, 2014 at 10:45 PM.
Yup after some further checking it's looking a lot like TIS. I couldn't do that yesterday because all that stuff is here at work.
'12 Caprice PPV 6.0 L77 - daily transportation
8.7 @ 84 (1/8 mile) bolt-ons
'02 Silverado RCSB 5.3 L59 - regularly street driven
8.2 @ 86 (1/8 mile) stock cam and spray
8.6 @ 84 (1/8 mile) cam and heads no spray
Our YOUTUBE CHANNEL featuring the Silverado
Boost, I know it has been a while, did you ever get it to flash to unlock 6th gear?
Thnx
Sam