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Troubleshooting and First Adjustments

4:16
15:31
24.7K views

At 4:16 in

LSXcalade Hits The Dyno: Makes INSANE HP at PFI Speed! (8,000 RPM Twin Turbo LSX 427)

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What happens here

After the initial run, the team inspects the engine. They discover that the O2 sensor bung, a critical part of the exhaust system, has failed and detached. The presenter also expresses concern about the vehicle's driveshaft, as it lacks a driveshaft loop, a significant safety risk for a vehicle producing this much power. They discuss the boost pressure from the first run, noting a peak of 22 pounds per square inch (psi) that falls to 15 psi. The team decides to make adjustments to increase boost and optimize the engine's tuning parameters to achieve higher and more consistent power.

Goal: Identify issues and make preliminary adjustments to optimize power.

Tools and materials

  • Cadillac Escalade GM — Vehicle being tuned
  • Driveshaft Loop — Missing safety feature for the driveshaft
  • Laptop with Tuning Software — Making tuning changes to engine parameters
  • O2 Sensor Bung — Failed component in the exhaust system

What they say

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it's kind of fun right about to go full orthodontist on this thing who's stepped in that who lost their shoe you know you're defeated when you just leave it there they're filming a video too so i don't want to film at the same time necessarily they're filming all the time so you gotta go watch their video to see that stuff dude i taste blood i think we need to keep going holy crap my god that was unreal i can feel the whole thing in here too man 1492 with the tire it's 90 something degrees in denver dude are you kidding me this is a monster a legitimate bonafide monster how much boost did it make i smell blood now i think we need to keep going 22 pounds on the spike and then uh fell to 15. so the spike is where it peaked at power wise yes so 1500 at the tire on 22 pounds of boost yeah in denver bro in a six thousand pound escalade yeah oh my gosh you realize what you're sitting in right yeah you have navigation right there bro do you want to plug in the aux cord turn your cooled seat on is it too hot in there for you right yeah i got the air conditioned seats yeah it's still an escalator this ain't no strip down no this is still a luxury vehicle oh my gosh this thing is out of hand wild like we could take this thing to dinner you did one night went 191 on the dyno okay so don't give too much more my gosh dino jet won't let us go above

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