Duramax Diesels Forum Truck of the Week
  #1  
Old 01-16-2010, 10:47 PM
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Default decent milage tune

This is a script for my daily driver milage tune, and a script for the TCM changes I'm running with it. Unfortunately I can't lower the 5th gear release speeds for the torque converter as those tables aren't available in EFILIVE(it will unlock at stock speed no matter where I set the release at for 0% TPS). The engine tune is nothing super fancy, just a bunch of small changes and the timing set to 50% at the upper RPM's. I've found this one to not rattle even down to 0 degrees outside, but is a tad touchy on slippery roads.
Attached Files
File Type: txt TCM.txt (3.0 KB, 90 views)
File Type: zip milage.zip (5.0 KB, 209 views)
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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.

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Old 01-16-2010, 10:50 PM
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Run this script over the other one for more advanced low speed timing. These timing tables gave me slightly better milage, but it would timing rattle below 70 degrees outside. I'm going to try and play with the ECT and IAT multipliers some and get the advanced timing version to work in colder air temps.
Attached Files
File Type: txt milage 2.txt (7.4 KB, 68 views)
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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.

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Old 01-24-2013, 10:07 AM
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Is this stock trans safe? It looks like you went all imperial. Do you mind if i give this a try on my truck. any suggestions of things I should do?
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Old 01-24-2013, 04:04 PM
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Quote:
Originally Posted by Chevmeister View Post
Is this stock trans safe? It looks like you went all imperial. Do you mind if i give this a try on my truck. any suggestions of things I should do?
Check your PM's
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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.

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  #5  
Old 02-15-2018, 12:08 PM
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Hi THEFEMANATOR I was wandering if it is alright if I try out this mileage tune. I have an 04 lb7 and just getting into tuning and trying to figure everything out. Thanks
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Old 02-15-2018, 01:01 PM
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This post is five years old not sure if this guy comes on anymore he is pretty smart though I was reading his write up on injector balance rates


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Old 02-15-2018, 01:05 PM
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Yeah I'm not sure if he does anymore or not either but figured I would try. And he does know his stuff and has good information on the forum.
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Old 02-15-2018, 01:13 PM
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Quote:
Originally Posted by Columbus450 View Post
This post is five years old not sure if this guy comes on anymore he is pretty smart though I was reading his write up on injector balance rates


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Originally Posted by Willislb7 View Post
Yeah I'm not sure if he does anymore or not either but figured I would try. And he does know his stuff and has good information on the forum.
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Looks like he is still very active. You can view that information under his statistics on his user profile.
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Old 02-15-2018, 01:38 PM
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Quote:
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Looks like he is still very active. You can view that information under his statistics on his user profile.

Thanks Pmason92 i didnt realize you could do that.
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Old 02-15-2018, 05:04 PM
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I'm pretty sure he is OK with you running it, that is why he posted it here.

There are a number of tunes for the LB7 you can try out and learn from (including the one I still run on my Suburban and any other stock engine LB7 I run across). If we post them here, they are free to use!
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Old 02-15-2018, 05:27 PM
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Awesome thank you. Im completly new to tuning and finally got efi so I could start learning on my truck and have been having a hard time figuring out exactly where to start. Reading your posts and and some others have helped get me an idea of where to start. Thanks
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Old 02-16-2018, 12:06 AM
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I don't post them if they aren't for others to use. All I ask is don't go taking my tunes and then selling them to somebody as your own. Had a couple people do this, so that's why I stopped helping most people with tunes. Otherwise have at it.
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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.

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Old 02-16-2018, 03:33 AM
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That's too bad, too. It's alot of fun, and something one can take pride In! Doesnt seem alot of people do this themselves much anymore. It's neat reading thru posts around 07-10, when information was shared to help everyone. Now, it's like that door has been closed and locked up.
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Old 02-16-2018, 01:52 PM
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Quote:
Originally Posted by THEFERMANATOR View Post
I don't post them if they aren't for others to use. All I ask is don't go taking my tunes and then selling them to somebody as your own. Had a couple people do this, so that's why I stopped helping most people with tunes. Otherwise have at it.
Thank you. I didn't want to just use it without asking even though its right their to be downloaded. What would you suggest to change on the tranny tuning wise to make it hold the extra power? Not looking to hold big power just small amount and to get truck to have better fuel mileage. Thanks
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Old 02-16-2018, 01:56 PM
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There is nothing specifically in your transmission tune that will increase holding power but... Raising the shift points can help because torque drops off the higher you go.

Also keeping it out of overdrive will help
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