How do they do this?

Diesel Pilot

Hat? Suitcase? 50 BMG?
Aug 9, 2006
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Pickerington, OH
5th or 6th gear floored and maybe a bit of brake.

I've seen it done many times.

Certain Duramax's can do it with an Ally too. I think 01, 02 and some 03's. Get into 5th let the speed come down to about 45 then set the cruise control, and mat it. The truck won't down shift for whatever reason and if you have a good smoke tune, let the fun begin.

LLY's can't do this.:mad:
 

Mike

hmmm....
Feb 17, 2007
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San Angelo, TX
5th or 6th gear floored and maybe a bit of brake.

I've seen it done many times.

Certain Duramax's can do it with an Ally too. I think 01, 02 and some 03's. Get into 5th let the speed come down to about 45 then set the cruise control, and mat it. The truck won't down shift for whatever reason and if you have a good smoke tune, let the fun begin.

LLY's can't do this.:mad:


Are you saying an lly can't smoke like this? Or an lly can't do this in the same manner as you have described?
 

sweetdiesel

That's better
Aug 6, 2006
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Thailand
Couldnt you lock it in 5th gear with EFI? and do the same thing more or less as craig described


Mike im sure Craig ment as he was describing
 

Diesel Pilot

Hat? Suitcase? 50 BMG?
Aug 9, 2006
1,424
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Yeah, for some reason 03ish+ trucks can't do this trick. I've seen Ecc (02) and my nephew (01) do it many times. It's kind of fun.;)

Actually an LLY would be way easy to make stupid smoke, just zero out the boost tables. Then don't look at the EGT gauge.:D

Every crazy smoke tune I've tried to make on an LB7 was good until the turbo lit then it was time to hang on.
 

Mike L.

Got Sheep?
Staff member
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Aug 12, 2006
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5th or 6th gear floored and maybe a bit of brake.

I've seen it done many times.

Certain Duramax's can do it with an Ally too. I think 01, 02 and some 03's. Get into 5th let the speed come down to about 45 then set the cruise control, and mat it. The truck won't down shift for whatever reason and if you have a good smoke tune, let the fun begin.

LLY's can't do this.:mad:

You might lose your C1's doing this. TCM sees low speed from speed sensor and calculates that truck is going slow and high tq isn't being requested, pressure drops in Alli; you get the picture.:eek:
 

ecc_33

Junior Member
Aug 10, 2006
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F@#$ the c1's mike LOL who needs them anyways....the tranny will get rid of what it dont want :)

Yeah on 01's and early 02's if you get going at about 50mph then set the cruise when in 5th gear. You can lug the dog snot out of the truck until about 62ish mph.... Its very fun when that moostang is on your ass
 

bullfrogjohnson

Big Girl!
Nov 20, 2006
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Locust, NC
F@#$ the c1's mike LOL who needs them anyways....the tranny will get rid of what it dont want :)

Yeah on 01's and early 02's if you get going at about 50mph then set the cruise when in 5th gear. You can lug the dog snot out of the truck until about 62ish mph.... Its very fun when that moostang is on your ass

I am trying this tommarrow:D
 

MaxFarmer

<--Heavy Smoker
Jan 22, 2007
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Albion, Nebraska
F@#$ the c1's mike LOL who needs them anyways....the tranny will get rid of what it dont want :)

Yeah on 01's and early 02's if you get going at about 50mph then set the cruise when in 5th gear. You can lug the dog snot out of the truck until about 62ish mph.... Its very fun when that moostang is on your ass

What do your egt's do when you do this? :confused: If its not bad I might have to try it sometime. ;)
 

Diesel Pilot

Hat? Suitcase? 50 BMG?
Aug 9, 2006
1,424
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47
Pickerington, OH
You might lose your C1's doing this. TCM sees low speed from speed sensor and calculates that truck is going slow and high tq isn't being requested, pressure drops in Alli; you get the picture.:eek:

:rofl: I'm not doing it in my truck, but it sure is fun to ride along while someone else is doing it. That's why I have Ecc. :hug: