IMPORTANT: Sled Pullers-

[McRat]

We need to verify and override the Torque Management in 4WD Low if it exists. I will be looking over logfiles today to figure out what's up.

If there is actually defueling happening in 4WD Low, we need to build a DSP2 tune that will "overfuel" when you flick the switch to get max power in 4WD Low.

I'll be honest, I have my doubts. But it certainly could be true.

 

[McRat]

What might also bear looking at, is if both 04.5's and 05's are doing it.

We do know Blue (os 1668) smokes in 3rd at sled pulls. Casper does not (os 8758).

We don't care if it defuels in first and second. But if it defuels in 3rd, problem.

Actually, some defueling in 1st and second might actually be a good thing.

 

[Mike L.]

Pat
I would be very carefull doing this as the factory tq management is there for a reason. Broken shafts come to mind. I believe whatever tq the truck is making will be multiplied by 2.1 ( converter ), then 3.10 ( first gear ratio Alli ), then 3.73 diff ratio and whatever the low range in the transfer case ratio is. That is monster tq.

 

[Diesel Pilot]

Does this apply to the LB7 also? I can likely get a data log from the 01 in my signature while pulling within a week or 2.

 

[Trippin]

Pat
I would be very carefull doing this as the factory tq management is there for a reason. Broken shafts come to mind. I believe whatever tq the truck is making will be multiplied by 2.1 ( converter ), then 3.10 ( first gear ratio Alli ), then 3.73 diff ratio and whatever the low range in the transfer case ratio is. That is monster tq.

Oh stop your whining!

Just because you have to fix it when Pat breaks the drivetrain...:cool2:

 

[Flashscan]

Let me know how it goes because Bobo is convinced there is something sinister at work. Worst case, I could probably do a special bypass all torque managment O.S mod :secret: .

Cheers,
Ross

 

[dmax tim]

do it and let someone try it out, w/o a sled hooked on it's not going to hurt anything.

 

[Flashscan]

I should have added, it's not a trivial task to do this, but if it needs to be done then we can try.

Cheers,
Ross

 

[Mike L.]

Oh stop your whining!

Just because you have to fix it when Pat breaks the drivetrain...:cool2:

Guy
I call that torque management. :baby:

 

[dmax tim]

I call that torque management. :baby:

I thought you called 'tall boots' torque management (or I mean fleece management)

 

[05_LLY]

I know there are some manual trans guys complaining about this tq management also but i have not had any issues in low range, it pulls and blows smoke like a pi$$ed off freight train in 4 low !!!!!!!

 

[hdmax]

I know there are some manual trans guys complaining about this tq management also but i have not had any issues in low range, it pulls and blows smoke like a pi$$ed off freight train in 4 low !!!!!!!

How does McRat's tune compare to yours? I know he has pretty much got the LLY tune perfected from what I have read. To bad he didn't have an LB7 to test an tune

 

[05_LLY]

How does McRat's tune compare to yours? I know he has pretty much got the LLY tune perfected from what I have read. To bad he didn't have an LB7 to test an tune

Honesty, top end feels a lot stronger (3200rpm +), Bottom end (2200rpm -) is a little more laggy(but i'm working on that) and it dose not smoke as much, my tune smokes like a 12v cummins this one only smokes on the top!!!

 

[McRat]

Necropost.

 

[Schwinn68]

necropost

to post in a thread that has been "dead", by being inactive for a relatively long period.

had to look it up. why bring this back up?

 

[McRat]

No particular reason, I was doing a test of a feature.