Hi all
2006 vortec max, 4.10 gear, 4wd.
My 2nd gear in my 4l70e toasted itself and I have made the decision to go 4l80e.
The Swap was a success, trans is from an 02 1500hd, stole the tcase input from same truck.. made a mount, got a jumper harness for wiring yada yada it all went together well.
I segment swapped the ecm with a similar OS, 4l80e equipped file.
Low throttle, cruising around the truck is great.. no CEL or anything.
When you drop the hammer, it really seems like it?s missing quite a bit of jam compared to the 4L70E. I know the 2.4 first gear doesn?t help this but I have removed 80% torque management, bumped power enrichment to a 1.19 multiplier across the board and followed quite a few youtubers direction on the rest (0?d the ect spark table, modified regular spark tables etc etc)
It still doesn?t feel as it?s got as much jam as when it has the 4L70E with the stock tune.
I need to get on datalogging it with a wideband but I was wondering in the time being if someone can have a look at my tune and let me know if I am missing something obvious.
Don?t know how I can attatch a file here but I can send it via email if that works.
Thanks a bunch!