Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

More Transmission tuning Questions

Old Mar 2, 2008 | 10:35 AM
  #1  
trever1t's Avatar
Thread Starter
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default More Transmission tuning Questions

Shift pressure...

Where do you guys set the max value in "shift pressure-normal" ??



I turned up the "MAX PRESSURE" value to 96 (from 90) so it would make sense to have the cells in the upper range of the torque scale set to a higher # to take advantage of increased line pressure? Am I like a totally off-base newbie or what?
Reply
Old Mar 2, 2008 | 10:44 AM
  #2  
Klive's Avatar
Banned
iTrader: (4)
 
Joined: Dec 2007
Posts: 366
Likes: 0
Default

I have wondered on this also, I didn't want to have it to high with my stock trans still in the truck but good question, glad someone else asked it!!
Reply
Old Mar 2, 2008 | 11:06 AM
  #3  
KySilverado's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Jun 2004
Posts: 5,446
Likes: 7
From: Central Kentucky
Default

90 is the stock setting and where I have mine. But yeah if you want to bump it up you would need to raise it in the other tables also. Not needed IMO with a built tranny.
Reply
Old Mar 2, 2008 | 11:42 AM
  #4  
trever1t's Avatar
Thread Starter
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default

Thanks Roger!
Reply
Old Mar 2, 2008 | 07:57 PM
  #5  
TouchOfEvil04's Avatar
TECH Junkie
iTrader: (13)
 
Joined: Apr 2006
Posts: 3,312
Likes: 0
From: Walker
Default

Lol, my two trucks shift so dang hard i have all lowered across the board.
the rcsb is at 0 for about half the table.
Reply
Old Mar 3, 2008 | 12:00 AM
  #6  
Sleeper Bowtie's Avatar
Staging Lane
 
Joined: Jun 2006
Posts: 78
Likes: 0
From: Simi Valley, Ca.
Default

I don't know much about the rest of HP tuners but the transmission tuning was very important to me.When i had John from Magnacharger tune my truck we drove around for about 2.5 hours working on air/fuel ratio and trans tuning.Anything over 400ft.lb he set at 96 and i think it finally shifts the way i want it too.
Reply
Old Mar 3, 2008 | 08:40 AM
  #7  
trever1t's Avatar
Thread Starter
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default

Yeah, that's what i was thinking here, setting the Max pressure tab to 96 and pressure field to 96 in the upper cells of the field.


Any more thoughts?
Reply
Old Jun 8, 2008 | 04:12 PM
  #8  
FL-Pirate's Avatar
10 Second Club
iTrader: (10)
 
Joined: Jan 2008
Posts: 51
Likes: 0
Default

Originally Posted by trever1t
Yeah, that's what i was thinking here, setting the Max pressure tab to 96 and pressure field to 96 in the upper cells of the field.


Any more thoughts?

How did you make out with this? I've successfully tuned out the TM and now working on the line pressure. Where did you end up? Thanks.
Reply
Old Jun 8, 2008 | 04:44 PM
  #9  
BlackGMC's Avatar
Resident Retard
iTrader: (31)
 
Joined: Jan 2006
Posts: 17,216
Likes: 20
From: Fort Worth - TX
Default

Originally Posted by trever1t
Before you guys go start changing values in that table you need to log delivered engine torque so you know what cell to modify... Delivered engine torque is calculated by the computer, so with that said you may not even be getting to the 640tq cell....
Reply
Old Jun 8, 2008 | 05:07 PM
  #10  
trever1t's Avatar
Thread Starter
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default

well, as logged I reach the lower 500-520 foot/lbs when wot.

In this screen shot the top table are the stock settings and the lower is my current shift pressure table. Notice I had to turn the pressure down in the lower range, it shifts crisp and quickly now. At wot the increased pressure is not rough. Everything "feels" good.

Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 08:28 PM.