Trans limits

RoboF16

Member
Dec 15, 2011
38
0
6
I've been tweaking the shift points w/ EFI Live and have two questions related to hardware and TCM. I've run out of help on the EFI Live web site.
1. I seem to have found some limit in hardware or software to the 2-1 downshift. My goal is to carry 2nd gear to slower speeds at low throttle openings when slowing down for turns, rolling thru stop signs, etc. just like you would with a standard shift but, I still get the downshift above programmed speed which is now down to zero. It usually happens just as I touch the throttle to maintain speed. Any ideas why?
2. Is there any downside to programming TC lockup at slower speeds say in 4th gear? It would result in more TC lock apply/disengage cycles but is that significant?
 

Mike L.

Got Sheep?
Staff member
Vendor/Sponsor
Aug 12, 2006
15,681
232
63
Fullerton CA
Ya just got to love people that have no idea how an Allison works and try to control it.:roflmao:
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
15,686
1,957
113
Mid Michigan
Ya just got to love people that have no idea how an Allison works and try to control it.:roflmao:

You have such a direct way of saying things, Mike. :rofl:
I remember you telling me years ago, "Don't ever mess with shift timing or defuel or you'll kill your trans". Words to live by.....