Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > Tech Area- Dodge > EFI Live Tuning Discussion (Cummins)
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Reply
 
Thread Tools
Old 03-17-2018, 01:46 PM   #1
Justinsixseven

Name: Justinsixseven
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2016
Member`s Gallery
Posts: 54
68rfe Tuning

I have some questions regarding 68rfe Tuning and shift firmness. If anyone would be willing to answer a few questions Iíd really appreciate it.


Sent from my iPhone using Tapatalk
  Reply With Quote
Old 03-17-2018, 04:28 PM   #2
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
What do you have for questions?
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Old 03-17-2018, 04:49 PM   #3
Justinsixseven

Name: Justinsixseven
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2016
Member`s Gallery
Posts: 54
Quote:
Originally Posted by Dom_c13b View Post
What do you have for questions?


How to make the trans shift firmer besides raising line pressure and how to eliminate the dead pedal feel when the torque converter locks too early


Sent from my iPhone using Tapatalk
  Reply With Quote
Old 03-17-2018, 05:26 PM   #4
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
Firmer shifts: raise your minimum line pressure to 120, and raise your pressure gains to .5 or so across the board.
Dead pedal when the converter is locked will be in your pedal and torque tables.
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Old 03-17-2018, 05:31 PM   #5
Justinsixseven

Name: Justinsixseven
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2016
Member`s Gallery
Posts: 54
Quote:
Originally Posted by Dom_c13b View Post
Firmer shifts: raise your minimum line pressure to 120, and raise your pressure gains to .5 or so across the board.
Dead pedal when the converter is locked will be in your pedal and torque tables.


For a firmer shift do you move the gain number closer or further from zero


Sent from my iPhone using Tapatalk
  Reply With Quote
Old 03-17-2018, 05:37 PM   #6
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
further.
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Old 03-17-2018, 05:39 PM   #7
Justinsixseven

Name: Justinsixseven
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2016
Member`s Gallery
Posts: 54
Quote:
Originally Posted by Dom_c13b View Post
further.


What about acceleration adders for shift firmness?


Sent from my iPhone using Tapatalk
  Reply With Quote
Old 03-17-2018, 05:44 PM   #8
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
That gets a bit more tricky. I'd start with just minimum pressure and the pressure gains. Most all trans tunes that I've seen have been based off of the H&S OD tune. The original Revmax tcm tunes were just that, h&s OD tunes, line for line.
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Old 03-17-2018, 05:55 PM   #9
Justinsixseven

Name: Justinsixseven
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2016
Member`s Gallery
Posts: 54
Quote:
Originally Posted by Dom_c13b View Post
That gets a bit more tricky. I'd start with just minimum pressure and the pressure gains. Most all trans tunes that I've seen have been based off of the H&S OD tune. The original Revmax tcm tunes were just that, h&s OD tunes, line for line.


Do a majority of tunes just deal with line pressure, shift points, and TC lockup?


Sent from my iPhone using Tapatalk
  Reply With Quote
Old 03-17-2018, 07:05 PM   #10
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
No all of the other stuff is adjusted as well. Just a lot more to it. And there's a lot of different parameters there, not just the handful for shift points, pressure and lockup.
There's no problem with just adjusting those for the most part though.
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Old 03-17-2018, 08:54 PM   #11
Justinsixseven

Name: Justinsixseven
Title: Green Behind the Ears
Status: Not Here
Join Date: Feb 2016
Member`s Gallery
Posts: 54
Quote:
Originally Posted by Dom_c13b View Post
No all of the other stuff is adjusted as well. Just a lot more to it. And there's a lot of different parameters there, not just the handful for shift points, pressure and lockup.
There's no problem with just adjusting those for the most part though.


I think the pressure gains are already more than .5. Also canít you run like 170 psi of LP?


Sent from my iPhone using Tapatalk
  Reply With Quote
Old 03-17-2018, 10:01 PM   #12
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
Yes sir. On a stock trans I usually set pressure at 185
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Old 03-17-2018, 10:02 PM   #13
Dom_c13b

Name: Dom_c13b
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2012
Location: Freeport, Maine
Member`s Gallery
Posts: 89
Minimum line pressure makes a big difference on shift firmness.
__________________
06 SCLB. Built 48re, ATS Twin cp3, s369sxe, Fass 220, Hamilton 188/220, 110# springs, DDP 220's, Big valve head, .40 over, 12v rods, balanced rotating assembly. etc..
TenacityTuning@Yahoo.com
facebook.com/TenacityTuning
  Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:49 PM.

 


Powered by vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2018, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com