LMM 5th gear defuel

[JoshH]

Has anyone ever successfully defeated this? It is a little frustrating that I can't run 5th gear out past 3600 RPM without it defueling. 1-4 are not a problem, but 5th is not having it. When I had the compounds, I didn't really care because power was dropping off that high in the RPM range anyway, but with the single, it likes to rev more. I would like to resolve this if possible, but nothing I have tried was worked. Let me know if you have had any luck with it.

 

[Chevy1925]

Let us know how it goes with Kory, Josh.

Those that are not following Josh on FB, Kory says he knows where the tables are and is working with Josh to fix this issue most likely today, then share a public tune with the included tables for all to use

 

[JoshH]

I will update the thread when I have news.

 

[Bdsankey]

Following. That would be awesome for the LMM guys running a big single.

 

[WolfLMM]

Since Josh is too busy having fun in the truck right now, I’ll update this: it’s FIXED!!!

 

[gmduramax]

:happy2:

 

[JoshH]

Lol. Thanks for updating it for me, Waid. It is definitely 100% fixed! It took a few attempts to figure out what he could and couldn’t disable, but once the truck was able to finally start, the defuel was gone. Kudos to Kory for figuring it out!

 

[paint94979]

Thats awesome Josh.

 

[2004LB7]

Where does it normally defuel to? I haven't noticed anything on mine but maybe I'm not commanding as much as you

 

[JoshH]

It is only in 5th gear right around 3600 rpm when it does it. With most normal size street tires, that is right around 130 mph. It will defuel all the way down to 0mm3 if you stay in it and it doesn’t shift.

 

[snowman22]

This post makes me think twice about all the negativity around Kory. It's cool to see people helping out in this community. :thumb:

 

[bluessmax]

Hey guys and those who tune LMMs... Here is a free download for the tables to fix it. Just download the files and follow the instructions I wrote. Happy Thursday.. and enjoy the last description in the calibration

https://www.dropbox.com/sh/idzohmaboluo3ql/AAA5bU0q88D97-21XVtdDf5va?dl=0

 

[MarkBroviak]

Thanks for taking the time and going back and finding the fix to this. Big deal for the guys trying to go fast! Hopefully we can get an LMM into the 9's soon!:thumb:

 

[rcr1978]

Thanks Kory :thumb: That's two he's given away the other was the LML boost to VNT conversion table.

 

[bluessmax]

I hold on to some things... but things like this and also the boost thing really need to be out there.. Now, when I find the limiter I catch every once in a while at like 4700 rpm on big single LMLs... that one will be hard to come off of! lol!

EFI had the inversion table in it for LML from the get go - it was just the wrong one. Thats what left me scratching for a minute back in the day. Heck I think we all owe JoshH a little something for the sweet calculator he did back in the day!

 

[2004LB7]

It is only in 5th gear right around 3600 rpm when it does it. With most normal size street tires, that is right around 130 mph. It will defuel all the way down to 0mm3 if you stay in it and it doesn’t shift.

After looking through my logs, I see what the problem is.

I've never gotten it fast enough to hit the limiter :roflmao:

 

[beach_33]

After looking through my logs, I see what the problem is.

I've never gotten it fast enough to hit the limiter :roflmao:

Weakling!!!

 

[2004LB7]

Haha, snap. Got me:hug:

 

[Dozerboy]

Thank you Kory


Sent from my iPad using Tapatalk

 

[MarkBroviak]

Only about 3% of the guys will actually need this but where this will really shine is on the dyno! Now we can dyno in 5th gr without it dying out at 3600rpms with big power setups.:thumb: