Diablo shift questions

[Bammer25]

 just purchased the diablo predator 2 platinum. I did a quick simple first run of 87 octane performance, 10% throttle increase, AFM off, and tire size correction.  drives fine...easy to install, cant tell a huge difference...

 

i was thinking of bumping up the throttle. anyway, do i need to mess with shifts? It seems to shift fine. will it save my tranny if i tinker with it? which shifts and by how much? i have seen other posts on this that simply say "firm shift on" while mine seems to have each shift point.

[Bill Reinhardt]

If I'm not mistaken, there are two ways to tune the transmission with that device:

 

1. Modify stock TCM

2. Apply the preloaded Firm or Hard shift tune 

 

If you selected "Modify Stock," then more options are available to you, such as adjusting upshift pressures and extending WOT rpm shift points. I personally have not had good luck modifying the transmission using a Diablo Tuner. Not necessarily the tuners fault, I blame my truck. Even a custom TCM tune was worse than stock.

 

Many people will argue that the firmer shifts between 1-2 and 2-3 will help with transmission life if you tow/haul frequently. While I agree, I found it frustrating as a daily transmission tune on an empty load. The shift firmness was very inconsistent for me unless I had weight in the back. Your mileage may vary, however.

 

Try loading the preset Diablo firm transmission tune and let me know how it goes!

[Bammer25]

Thanks. The only reason I guess I have the custom options is because I wanted to correct my tire size and turn off afm (not just load the can tune). Maybe I need to revisit