converter lockup

duratothemax

<--- slippery roads
Aug 28, 2006
7,139
10
0
Wyoming
Mike any advancements in widgets to allow faster converter lockup??

Im 100% convinced there is some table in the TCM that says "dont allow converter lockup until converter slip RPM (difference between input speed and turbine speed) is below X rpm", because with my blown 1057 thats all loosey goosey it takes the TCM forever to make up its mind and lock the converter.

http://www.youtube.com/watch?v=AzJOm0SJ7-k

My power is basically useless until ~50mph. :rolleyes:

I know I know I need to have the converter refreshed but I dont have the $ to spend on it or the time to pull it out right now... :(

ben
 

Mike L.

Got Sheep?
Staff member
Vendor/Sponsor
Aug 12, 2006
15,681
232
63
Fullerton CA
Mike any advancements in widgets to allow faster converter lockup??

Im 100% convinced there is some table in the TCM that says "dont allow converter lockup until converter slip RPM (difference between input speed and turbine speed) is below X rpm", because with my blown 1057 thats all loosey goosey it takes the TCM forever to make up its mind and lock the converter.

http://www.youtube.com/watch?v=AzJOm0SJ7-k

My power is basically useless until ~50mph. :rolleyes:

I know I know I need to have the converter refreshed but I dont have the $ to spend on it or the time to pull it out right now... :(

ben

Adam did it with EFI. In fact, his tcc came on so early I could not stand to drive his truck. Maybe he can chime in here.
 

duratothemax

<--- slippery roads
Aug 28, 2006
7,139
10
0
Wyoming
yea theres tons of tables for tcc lock up and wht no

played with them all, no change. There is some other table/limiter that is forcing the TCM to ignore the basic lockup schedules/tables that EFILive gives us, because it doesnt follow them.

Id like to see what malibu has been playing with though, if it can help my trans.

Need to get the converter fixed first...:(
 

slowlmm

New member
Mar 2, 2008
2,582
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so cal
played with them all, no change. There is some other table/limiter that is forcing the TCM to ignore the basic lockup schedules/tables that EFILive gives us, because it doesnt follow them.

Id like to see what malibu has been playing with though, if it can help my trans.

Need to get the converter fixed first...:(

do u have the newest version theres some new stuff
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,735
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Texas!!!
I played with mine too. It's hit and miss, especially the full throttle lockup stuff. The copilot works though.
 

duratothemax

<--- slippery roads
Aug 28, 2006
7,139
10
0
Wyoming
yes...I never saw any point in raising the shift points seeing as the engines dont make power over 3100 or so....but if it wil make the converter lock faster im all for it...
 

The Neens

BFD
Staff member
Aug 10, 2006
4,596
1
36
Monrovia, Ca.
I just remember that with a big tune, sometimes it would lock in 2nd, sometimes not...When I had the propane turned up, it would never lock it 2nd...Once I raised shift points to 3600, it always locked...As far as being quicker at the track, don't know if it was better, worse or indifferent, never tested it...
 
stuff like what? as far as I know I have the newest version

The last time we added parameters to the software was in the June 2nd BETA release. If you are running BETA, you'll have access to them. If you are running public release then you have 2 choices - wait until the next public release or install BETA.

Ross added a range of new parameters specifically for a problem that Adam was having with his Turbo. These parameters "fixed" his problem enough to live with (ie no longer going into limp mode) but still needed some refining. I've asked Ross specifically what he added, and he can't remember what he had for breakfast let alone what he added 3 months ago! (Thats what happens when you have another birthday :) - it was Ross's birthday yesterday). You'll find a run down on this here http://forum.efilive.com/showthread.php?t=7570

In addition, we also added some parameters to deal with Tristan's request on TCC lockup - you'll find all the info here http://www.duramaxdiesels.com/forum/showthread.php?t=5483

If you are interested in upgrading to BETA - the latest beta was released on June 22nd. You'll find all the information here http://forum.efilive.com/showthread.php?t=8384

Cheers
Cindy
 

duratothemax

<--- slippery roads
Aug 28, 2006
7,139
10
0
Wyoming
Im 100% convinced there is some table in the TCM that says "dont allow converter lockup until converter slip RPM (difference between input speed and turbine speed) is below X rpm", because with my blown 1057 thats all loosey goosey it takes the TCM forever to make up its mind and lock the converter.

sure enough, seems my hunch was right....found it in the latest update:

you can see when the slip RPM is higher, TCC ramp on rate is slowed wayyy down. So with loose converters, lockup takes forever and happends sloooowly.

1058 probly couples so aggressively that slip RPM is near zero all the time, so the TCM makes the converter slam on.

Or maybe this was realized weeks ago and Im just totally late to the party; I havent updated efilive since sometime in march...
 

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duratothemax

<--- slippery roads
Aug 28, 2006
7,139
10
0
Wyoming
Cindy D5072 is the new magic table I think that will fix all my issues :D

but I only see it in the 6-speed files... :cry:

is there any possibility of Ross finding the equivilent table in the 5-speed TCM's?

thanks
Ben
 
cindy do i need to reinstall form the last bb or can i just add files ?

June 22 is a full installation, so you need not worry about ensuring your up-to date. In addition, it can also be an auto-update if you setup the auto-update feature.

Version 8.1.1 (build 31) is being made available as an auto update release. Please select the Start Menu option: Start->All Programs->EFILive->V8.1->Tools->Check for Updates.

Cheers
Cindy
 

Diesel Pilot

Hat? Suitcase? 50 BMG?
Aug 9, 2006
1,424
0
36
47
Pickerington, OH
Good find Ben! Thanks EFI for continuing to update the product even for old trucks.


On my 01 tcm, I never had a problem with getting the TC to lockup whenever I wanted with EFI. Maybe the 01 tcm doesn't have the ramp-on table.