Results 1 to 3 of 3

Thread: 2008 Silverado 2500HD 6.0 tune file?

  1. #1
    Potential Tuner
    Join Date
    Jul 2016
    Posts
    9

    2008 Silverado 2500HD 6.0 tune file?

    Looking for a tune for a stock 6.0 to give the truck a smidge more power for towing and or maybe fuel mileage at cruise speed.

    Anyone have a file they care to share?

  2. #2
    Potential Tuner
    Join Date
    Jan 2017
    Location
    RVA
    Posts
    7
    71 stock.hpt
    Here's the stock file from an 08 LY6 from a 2500 truck.

  3. #3
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,564
    To be honest, gaining MPG in a truck like that isn't going to be easy. I doubt that you would be able to gain much if anything with tuning if everything is working right. The biggest factors are some sensors and your driving habits. Clean the MAF, replace upstream o2 sensors with new OEM units if more than 100k miles old. Control your foot more, drive the speed limit or under to achieve good MPG. It's still a giant brick that weighs 6,500lbs going down the road.

    Play with some of the PE settings to help give it a little more seat of the pants feel. Remove the long PE delay and play with the timing and VVT to gain some bottom end power. I suggest running 89 octane or higher if you start messing with timing to keep knock away. The 6L90e can also be tuned nicely if you know what you are doing and each vehicle is different so no tune is exactly right for everyone.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.