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Is it Necessary to tune transmission with a tuner install?

6.6K views 10 replies 6 participants last post by  TripleE44  
#1 ·
Just like the title says...I am using the bully dog GT tuner on my 6.4, however I did not use their transmission tuning files...I kept it stock.

Tranny temps seems to be OK.
 
#5 ·
I wouldnt run more than 50 hp over stock without trans tuning
 
#6 ·
i would get a trans tune but hey its your pony ride her how you want
 
#8 ·
Transmission tuning is done through the TCM to control the transmission. It controls line pressure, converter lock-up, shift pattern, etc.
 
#10 ·
h&s you can pick different ones,not sure about spartan or sct
 
#11 ·
SCT you can either pick stock or firm with just the tunes that come on it. I believe if you get the whole Innovative Diesel suite package they have a few different ones to choose from. I've only got a single tune from Innovative and to the best of my knowledge you only get Firm shifts with it.