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  1. 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...
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    Injector cleaning

    That was the only thing I could think of, but I wouldn't have guessed it'd make that drastic of a difference, especially since it was only about 15% of the mixture.
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    Injector cleaning

    I did mine a few weeks ago, and it made no difference at all. Engine noise, fuel mileage, balance rates....nada. Not a single lick of difference. Strangely, during the procedure, all of the balance rates came down drastically. I was doing it to see if it'd help a -4.5 balance rate injector...
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    Fuel Flow Rate PIDs

    I appreciate the help! Yes, I've already noticed that there's tons of units options available when charting and mapping the PIDs, which is different from previous tuning experience I have where you're stuck with what you've got. Thankfully EFI Live has made it pretty easy to change it around...
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    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...
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    Hazing LB7 - Couple of Injector Questions

    See, that's what's tempting me. They're GM-installed Bosch remans from 2017. I see stories of people only getting 60k-80k before having issues, but I also see stories of trucks getting 125k-150k+ miles out of a set. It seems to me that all, or most, or several, of a 3-year-old set of...
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    Hazing LB7 - Couple of Injector Questions

    Have you had an LB7 in which the DVT numbers didn't match up? I read through a bunch of old threads regarding that issue when I was looking for info on how to use the DVT function. There was a LOT of he-said-she-said without much definitive proof either way, but the conclusion I came to was...
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    Hazing LB7 - Couple of Injector Questions

    Alright, figured out how to shut off the injectors through the DVT in EFI Live. It is DEFINITELY the #2 injector that's producing the vast majority of the smoke. I'd say shutting it off cut out 80%+ of the smoke. It went from a very noticeable cloud all around the truck clearly visible in the...
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    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...
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    Drop Shackle Shocks

    I've got an 03 CCSB, 3" drop shackles (which actually lower it about 2-1/4") and the overload removed (about another 1" lower). I've been running the KYB 565038 for about a year and a half now. Very happy with them. They fit, ride well, haven't given any issues. They were also very cheap (I...
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    MPG Gas vs Diesel

    In the year 2020, with all of the advancements that have been made to gas motors in the last decade or so, your total cost of ownership will absolutely be less with a gas motor than with diesel, unless you're towing heavy 80%+ of the time. 1/2-ton gas motors are making 350+ horsepower and 400+...
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    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...
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    something's wrong with engine

    I agree entirely that in practice, to actually achieve those gains is a lot of work, and likely a lot of money. Like anything, there's some simple stuff that can be done for some small improvements, but beyond that, it starts getting exponentially more difficult. Law of diminishing returns...
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    something's wrong with engine

    I'm going to go against the grain and say that I think it is indeed possible, but not even remotely close to easy, probable, or worthwhile. I'm a mechanical engineer by degree and trade, and I took every automotive / internal combustion class available during engineering school ~10 years ago...
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    How's everyone doing with this virus crap?

    (To be clear, not picking on you. You just happen to share viewpoints that don't agree with mine, and I think reasonable discussion on these issues is beneficial for both of us.) First, 10x isn't the best guess / best case, it's the worst case. Every study I've seen done on how much of the...
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    Straight driveline by lowering?

    2003 CCSB here. My rear is dropped with a "3 inch drop shackle" (it was actually more like 2-1/4") and I have the overload removed, which was just under 1". So it's an actual solid 3" lower in the rear. I did the math, and that would have resulted in a slightly more than 4 degree change in...
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    Engine coolant temp

    I just recently changed my thermostats out on my LB7. Well, like 4 months ago. But before, it took quite some time to heat up, and never really got above 165-170. With the new OEM / AC Delco thermostats, it quickly gets up to 190-195, and stays there in every driving condition I've been in so...
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    Gale Banks reacts to Hoonigan 1000hp build

    Ain't that the truth? I just made a comment about this recently. I remember going to diesel events in the 2006-2012ish time frame, and it was all just so much fun. The events at Outer Banks Speedway that Buck and Jess put on, the original Rudy's dyno days at his old shop, the old DPC events...
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    How's everyone doing with this virus crap?

    To be fair, he did walk that back once everyone called him on it. He's supposed to announce his "plan" later today. Dollars to donuts, he extends this out until at least May 15, probably June 1, even though NC is in about as good a shape as any state in the country right now. The big problem...
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    How's everyone doing with this virus crap?

    https://www.theguardian.com/world/2020/apr/17/antibody-study-suggests-coronavirus-is-far-more-widespread-than-previously-thought If this is true, and it scales across all or most places that have infects, this is MAJOR news. A 0.12% - 0.2% death rate is....a bad flu season. I said this nearly...
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