Predator update.... 05 LLY

[jeff1216]

I installed the 65 hp tune yesterday.....Truck felt a little peppier but tje tranny did not shift well at all....Felt kinda lazy.....Ran about 100 miles. Shifting smoothed out but still not great.


This morning I figured what the heck...Installed the 85 hp tune on my bone stock 1500 miles on the clock LLY. I can only say


Shifts like butter and hauls some serious ass!


Decided to atleast one little launch......Left her in drive.....Stalled motor up to 2k rpm's and let her rip........Does it make power you ask????????


Well the allison tranny left a couple rubber marks thru 1st.....thru 2nd......half way thru 3rd............I am suprised to say the least.


Any negative long term effects to running the Predator on the 85 hp tune?


65hp tune just did not feel right.

[DmaxMaverick]

The adaptive learn process takes some time. If you keep switching between levels, it will never get it right. You need more shift events, not miles, to get it to learn.

I would not suggest running the 85 unless you have at least an EGT gage to drive by.