HP Tuners Modifications for GM Trucks.

[TheBigCheezeBall]

I finally got around to trying this out last week. I made the changes in Tow Haul first to see how I like it. Right now it will only lock in 5th and 6th, and only under 20% throttle. It will stay latched in until 37%. I wanted some room between the lock and the release to prevent it from coming on and off too frequently. About to take a long road trip, so will let you know what I think when I get back.

After a good long drive I think I still have some work to do. It releases a bit to easily, so need to revisit my tables. Also it seems to do what ever the hell it wants in cruise control, which is a bummer. Will update if i get a chance to tweak things. I do really like the idea over all though. The extra RPMs and “squish” on a hill makes it seem like it isn’t struggling anymore. I do get up to about 175 degrees on the transmission though, so need to keep an eye on it.