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  1. Dozerboy

    LBZ: Spoologic up pipes and down pipes quality?

    A guy on market place is selling a set of uppipes and a down pipe for $250. I know I've heard of them just not sure how good they where.
  2. Dozerboy

    Another reason not to get involved....

    This just happened here in TX. Could you imagine pulling a gun and taking a life for a fake robbery... Heck even with all the stunts on social media who knows when you might involve is "Robbery Challeng"...
  3. Dozerboy

    Bed size of the Classic extended cab trucks?

    I'm looking for an camper shell and I found one, but the guy says the Extended cab truck beds are a few inches shorter then the crew cab. I swear they only made the 6.5' beds and 8' beds in the 2500s with the classic body style. They guy parts out a lots of trucks and seems to know what he is...
  4. Dozerboy

    AC issues

    Another guy with AC question on my 2006 duramax. So my AC was only getting down to 60* at the vents and took an hour driver to really cool off. Normally its 40*s at the vents. I rented some gauges and bought 3 12oz cans of pure 134. Before adding any the low side was 35 and the high was 180...
  5. Dozerboy

    Starter is grinding intermittently.

    My starter started grinding intermittently. I'm assuming it's time to replace it, but is there anything I should rule out first? Batteries and less then a year and it was doing it some before replacing them. There doesn't seem to be any shimming that can be done. I'm happy with the life I got...
  6. Dozerboy

    12 rotor Rotary

    I don't know jack about Rotaries, but I thought this was pretty awesome. It was built for a boat, but will bolt in place of a BBC. Source: https://youtu.be/sXOffbLH_I0
  7. Dozerboy

    Max Safe Timing at cruising speeds?

    Well I wasn't happy with my mileage and upped my timing to a max of 11* at cruising speeds. I took a 2,000 mile trip and now it looks like I have a hurt HG. I had a little bit of pressure after sitting over night after the trip. It an LBZ with 5k miles on new Mahle HG, studs, and decked heads. I...
  8. Dozerboy

    1470hp on a stock engine...

    I know it's dyno racing and ain't going to survive but damn.... I would of liked to see the graph. Source: https://youtu.be/4MigJsT2STU
  9. Dozerboy

    Issues with backup camera.

    I got the camera installed to go with my new Alpine W650 headunit. The problem is intermittently the image is upside down on the display of the HU. I called a buddy and Alpine's tech support. They both though the issue was in the HU not the camera. The vendor wants me to try the camera first. I...
  10. Dozerboy

    Got a new head unit on the old LBZ.

    Well I had a few guys make fun of my old LBZ and me for still listening to CD's. Been meaning to get a new radio because the CD player only worked right 1/2 the time anyways. I didn't want anything too fancy, but wanted quality and to be able to have hands free calling and Bluetooth music. I...
  11. Dozerboy

    Help me fix the Nicktane...

    I need help from some of our experts maybe someone that studied fluid dynamics. I have an old school Nicktane secondary fuel filter. Well their mounting location and design isn't exactly the best, so all the air doesn't bleed out mostly after filter changes. That causes cavitation in my...
  12. Dozerboy

    Trans fluid for a built trans?

    Been a while since it was discussed it seems and I can't find a straight Dex3 anymore. What's recommended for a truck used only for towing and spirited driving on the weekends? 600hp and Suncoast if it matters. I see the common Allison fluids are available, but everything else seems to be a...
  13. Dozerboy

    Dorman body mounts dont fit...

    Anyone use these? Am I missing something? The height probably isn't an issue, but the nub that sticks down in the frame is 1/4" to big. And it's metal so it's not like there is any give like the factory. Part numbers 924-135 and 924-134 I even looked at another set from another part store...
  14. Dozerboy

    PPE's new cast iron heads?

    https://ppepower.com/products/cylinder-head-one-cast-iron-lly-lbz-lmm?variant=42832926998771 Anybody seen/used these and got any input? I don't really see the point other than to get rid of the cups on the LB7s. They didn't even do anything to make them flow any better. I've seen a video...
  15. Dozerboy

    5.3L leaking coolant at the crossover

    My wife's Tahoe is leaking coolant at the cross over on the front of the engine. I haven't really been able to find much information about this. Looks like it might be just a quick deal where I pull out the retainer bolts and replace an O-ring or is there something I'm missing to this?
  16. Dozerboy

    GM set to buy back some trucks.....

    I really hadn't heard of any more issues than what they've had in the past. Can anybody shed any light on this? https://gmauthority.com/blog/2022/04/gm-to-repurchase-silverado-hd-sierra-hd-units-due-to-duramax-diesel-engine-quality-issue/amp/
  17. Dozerboy

    Anyone give me a log of a stock LBZ and LLY?

    I'm looking for a wide open throttle run from a dead stop no boost to like 40mph or so. I want to look at MAP, vane %, and fuel pressure. Speed would be nice too. Thanks
  18. Dozerboy

    The Re-learn for Throttle Body for 09 Cobalt

    I'm helping a buddy out and he got a new TB for his cobalt and we are finding conflicting info on the relearn for it. Do we have to do one or not? If we do will the procedure work in the screenshot?
  19. Dozerboy

    Any issue with using a gravity feed auxiliary fuel tank on an LBZ?

    I added a tank to my LBZ to get more range while towing. My understanding is my stock tank won't overflow or anything if I open the valve right away with both tanks full. What about any CELs from the fuel gauge reading full for a long time? I thought I recall that being a problem. Can that be...
  20. Dozerboy

    House HVAC issue while on generator power.

    I decided to get a portable generator to power some of my house during the next power outage. I got a 11,500/9,200 watt Champion generator. I had it tied into the panel. Everything worked including the AC. But the AC didn't seem to be running right. The air coming out of the vent was 5* warmer...
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