Search results

Search the forum Search Articles
  1. S

    LB7 Alternator Options in 2023

    After 20 years and 250k+ miles of faithful service, it appears the alternator on my 2003 is giving up the ghost (I'm starting to sporadically get the "Battery Not Charging" message on startups). I'm curious what the consensus is these days on replacement alternators. I've learned the hard...
  2. S

    TCM/ECM defuel discussion

    I'm going a little off topic here, but it was some of your old posts that inspired me to really dig into how all the defuel tables work in the ECM. Long story short, I think I've pretty much figured it all out (and concur with your excellent summary here). And in order for it to shift (mostly)...
  3. S

    LB7 - Ultra Reliable 600 RWHP Build

    Thinking about long-term plans for my truck (2003 CCSB 4x4 LB7). Let's say the goal is 600 rwhp (or enough to run 7.99 in full street trim in a 7000 pound truck) and to be as reliable as possible in a ~450-500 rwhp daily driver tune. I'm defining "as reliable as possible" as the closest to...
  4. S

    Fuel Flow Rate PIDs

    It's taken me a couple of years, but I'm finally getting around to doing some of my own tuning on my LB7 (2003). I've got EFI Live / a V2 Flashscan. But before I started changing anything, I thought I'd first spend some time datalogging and getting my head around what's actually going on...
  5. S

    Hazing LB7 - Couple of Injector Questions

    Happy Thanksgiving everyone! As the title says, got a 2003 LB7 that's hazing quite a bit at idle (though I'd stop short of saying it's "smoking"). Started maybe 10k miles ago when I noticed the exhaust smelling pretty strong. Then around 5k miles ago I started noticing it visibly at nighttime...
  6. S

    White Letters or Not?

    Thinking of flipping my tires around so the raised white letters aren't facing out anymore. Pictures below as it sits now. What do y'all think? Do the raised white letters look a little cheesy / boyracer-ish? I think outlined white letters would look the best, but it wasn't an option on this...
  7. S

    Strange Turn Signal / Marker Lamp Electrical Issue - Need Help

    Hello all. I'm having a werid electrical issue with my 2003 Duramax. I'm usually a pretty good troubleshooter, but electrical stuff is sometimes my kryptonite, so I need some help. First off, here's a quick video showing what's going on. https://www.youtube.com/watch?v=fQeIrjCUoKk...
  8. S

    Ever Get a Speeding Ticket When You Positively Were Not Speeding?

    Is there really anything you can do about it? In the 13+ years and 500,000+ miles of driving I've done, I've NEVER had a ticket of any kind, but I managed to get one earlier this week. Was on my 60 mile commute to work in NC, on an 4-lane road (each way) with a 65mph limit. Just like I've...
  9. S

    Allison 5sp: Cores / Swaps

    Hello all. I have a 2003 Duramax (Chevrolet), and I've got some questions regarding transmission cores / swaps. So, I don't want to start a debate on the merits of a DIY transmission build versus paying a professional to do it, but I'm planning on building my own sometime later this year...
Top Bottom