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Thread: 3200 stall nag1 tuning help - constant limp mode in 4th

  1. #1
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    3200 stall nag1 tuning help - constant limp mode in 4th

    Hi all,

    Looking for some help. Looking for someone to help explain to a newbie tuner.

    I have a 2010 300S 5.7 NAG1. We put a comp 274 cam in and a 3200 FTI stall converter in, engine seems to be good, but having issues with the trans. Trans will hit 4th, and it will go into limp mode until it can get down to third. Found a couple other links but it doesn't quite help me understand what I'm doing, want to learn from this. Can someone help guide me in the right direction?

    Additionally, not sure if this is going to be related, but there also seems to be an issue where it dies when it comes to a stop. We thought putting a new converter in would fix it, obviously we were wrong, but I'm not sure if that's going to be fixed with the other issue.

    This is my first exposure, and all friends who self tune aren't familiar with the Dodge tables and layouts, so they haven't been able to help much.

    Mainly looking for help in what the issue is, what tables I'm changing and why, and just any other general help/knowledge I can learn from. At minimum just what I need to change.

    Attaching a couple logs and my tune

    Thank you for your time

    gear issue.hpl
    dying issue.hpl
    2010 300.hpt

  2. #2
    Potential Tuner
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    Aug 2018
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    bump

  3. #3
    Potential Tuner
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    bumpppppppppppppppppp looking for some help

  4. #4
    Advanced Tuner coanan's Avatar
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    Quote Originally Posted by molson101 View Post
    bumpppppppppppppppppp looking for some help
    Raise your TCM RPM limit to 7000 and see what it does. I'm not much of a tuner, so I have to look at other tunes and see what they did and make changes to see if it has a positive effect on mine, lots of trial and error.
    Attached Files Attached Files
    Last edited by coanan; 04-25-2020 at 06:37 PM.
    2018 Trackhawk PCM/TCM tune by Dusterhoff.
    Flex Fuel, MMX faux 95mm TB, GripTec 2.85, 10% ATI lower, FIC1200, ARH 1 7/8 w/cats, 180 T-stat

    13 Chrysler 300S, RAM BGE 412 stroker, cam motion 232/246 619/619 118 +4, ATI 18% OD pulley
    Whipple Gen5 3.0, 2.50 upper pulley, Smooth Boost controller, FIC 1200 inj. Nick W 108mm TB, FORE dual return fuel system, E85, FTI 2800 stall(SRT83380), SHR WAR Viking trans and valve body, Getrag 3.73, 1 7/8 kooks w/hi-flow cats, 3" Magnaflow Cat-back 943rwhp