I am currently working on my tune for my mostly stock 2006 silverado. The truck is used to haul my slide in camper with my race truck on a trailer behind it. The truck is all stock except a cold air intake. I have spent a bunch of time working on getting the fueling correct with driving around town unloaded so i feel confident that is ok. I am looking to gain some mileage out of the truck while towing this combo. I am also getting a little KR in the upper cells near 4k rpm. I would like to remove that. I tried lowing the timing the those cells and the surrounding ones without success. I would like to tow comfortably at 65 mph and get 11 mpg with this combo. Can someone also look at my trans tune too to see if there is anything that could be fixed? I know every little bit counts.
BTW the truck has no problems pulling this load up the passes or cruising it just likes gas.
I am usually tuning for max effort max power in my race truck so this is a little different. Thanks in advance
86k miles
6.0 4l80e
extended cab long box
slide in cab over camper with gear 1,500 pounds
race truck with trailer 7k pounds
4.11 gears
yokohama geolander tires like new 265/75/16 80 psi
Cold air intake
stock clutch fan (hardly ever turns on)
18-08-18 14-09-52 2006 lq4 4l80 with camper.hpl
06 chevy tune checkup 8 18 18 reduced timing and burst knock speedo corrected.hpt