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  1. 3.5 turbo let run ?

    Why keep arguing with people that actually assemble and service the vehicles? There are a few of us on here telling you you’re wrong.
  2. EREV Hybrid F-150 Lightning Announced!

    What’s coming first is the Ranger sized battery electric truck. IMO that will be the bigger seller. There’s way more interest in that from fleet managers than the full sizers. Of course I say that seeing local GM dealers unable to keep the electric Silverado in stock because they sell quickly.
  3. EREV Hybrid F-150 Lightning Announced!

    Depends on the kW needed from the range extender. Electric traction motors are so efficient I would guess a larger displacement NA 4 cylinder would work fine. Something like 2.5L to 2.8L.
  4. EREV Hybrid F-150 Lightning Announced!

    The gas engine doesn’t charge the battery. In an EREV the generator only runs once you’ve used your 100-150 miles of battery range. The generator then holds the battery at a low, steady state of charge and generates electric current to run the traction motor. RPMs do vary a bit based on the...
  5. 3.5 turbo let run ?

    So you’re pulling the ‘ol “I reject reality and substitute my own” defense. There is no scenario happening as you describe unless someone sits in the cab flooring the throttle while manually pulling the wastegates shut with a rope while shutting the engine off. Under normal operating conditions...
  6. 5900 mile cross country trip in 2025 PowerBoost Lariat

    Excellent trip! You're not the only one who sticks to 75 or maybe 80mph out west. We took a trip to Seattle last year in a Silverado and had to keep it to around 78 max. The wind noise got so deafening over 80 it was miserable. Nearly 90 decibels on a phone meter IIRC at 85mph.
  7. EREV Hybrid F-150 Lightning Announced!

    Eh it's understandable once you go all EV. Never having to deal with gas stations or service (outside of rotating tires) is very nice. It's definitely bittersweet to see the "skunkworks" Lightning sunset but in the end it was only ever meant to be a stopgap. Beating GM to the punch was a...
  8. New GM 5.7 V8, 5.3 being discontinued

    Buffalo isn't the only source of V8s for GM. Some of us backwards southerners build them too. :cwl:
  9. New GM 5.7 V8, 5.3 being discontinued

    It only achieves that by virtue of having cylinder deactivation. The formula is convoluted and doesn't necessarily mean those outputs are lower. The test cycle data is available via FOIA if you really want to know. The 3.5 has a much higher specific output so it's not exactly apples to apples...
  10. New GM 5.7 V8, 5.3 being discontinued

    Generally the word gets around from suppliers first. Folks aren't always tight lipped there. ICI and Eaton being the habitual worst offenders. Tula already announced their contract for the next gen V8s so we know that means skip-fire aka DFM is still around.
  11. New GM 5.7 V8, 5.3 being discontinued

    They’ve done no such thing. One blog has speculated but in reality there’s next to no information available. Cylinder deactivation is staying for sure though. Unless GM pulls a miracle and makes the most efficient V8 ever they aren’t meeting the particulate or CO2 standards without cylinder...
  12. New GM 5.7 V8, 5.3 being discontinued

    The Hurricane platform exists because the Hemi didn’t meet current emissions regulations let alone future iterations. It could easily get better fuel economy than a V8, but that would require it to be detuned to make V8 power.
  13. New GM 5.7 V8, 5.3 being discontinued

    I just work directly in the industry so what do I know. :crazy: STLA built up a bunch of 5.7 engines before shutting down the line in Mexico for retooling. At some point they started building them again on the line that produces the 6.4. The V8 option, like in the F150 is trim limited and not...
  14. New GM 5.7 V8, 5.3 being discontinued

    There’s no new Hemi. Y’all gotta remember those types of sites are looking for clicks. The 6.4 in the HD trucks is getting updates but that’s it. The temporary addition to the Ram and soon Charger is just temporary. The Euros were kicking around a new smaller displacement V8 idea but who knows...
  15. How screwed am I?

    Honestly with no painted parts or headlights damaged I'd be trolling LKQ or ebay for a grille, shutter assembly, condenser, and radiator. Might need a core support but it just bolts in. There are tons of high quality (unfortunately chinese) stock replacements for the grille and shutters on...
  16. 3.5 turbo let run ?

    Our fleet drivers would challenge the notion of not running full throttle for minutes at a time. :cwl: The amount of XL trim 2.7s running around since 2015 on the cheapest synblend oil getting changed at 10k miles while loaded above max payload every single day would make your head spin. When...
  17. 3.5 turbo let run ?

    With the cooling modules these trucks combined with the emissions strategy they just aren't going to let you get them hot enough to damage anything unless there's some sort of component failure or tampering. You really can't compare gasoline turbocharged engines to aircraft turbines. The mode...
  18. 3.5 turbo let run ?

    :ROFLMAO: I only worked on them for their entire production run up until recently. I can assure you every use case has been thought of by now. These small turbos have very little inertia and slow down almost immediately with the wastegates open. I've seen various turbo failure modes over the...
  19. 3.5 turbo let run ?

    Ecoboost engines have been in trucks for well over a decade now with no issues caused by parking them hot. I think it's time to let that idea go.
  20. 3.5 turbo let run ?

    Look at how the turbo oil feed lines are routed. There's enough there to gravity feed for a bit. We had a spate of oil feed line replacements on the last gen 2.7 due to smoking on startup. Even after sitting cold a good bit of oil would always run out. Sure let it idle a minute on the scenic...




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