12.7 detroit upgrades

Discussion in 'Trucks [ Eighteen Wheelers ]' started by prerunner404, Jun 21, 2016.

  1. Ruthless

    Ruthless Road Train Member

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    I got the injectors, tune and turbo all at the same time when I had that truck inframed 7 years ago- I couldn’t tell you if the injectors alone would do much, though with a stock tune I’d think there would be some, if minimal difference. Without a program increasing injector pulse length and a windmill to push enough air, I think any one change would be an improvement, but not altogether impressive if the unit was lacking all parts to make power.
     
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  3. ChicagoJohn

    ChicagoJohn Road Train Member

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    I've got a tune with the Borg Warner turbo & ceramic manifold, so I'm wondering if I'd get any gain in mpg or additional power.

    On another note, anyone else's 12.7 smoke like a mofo when it's under 30°? It clears up after it warms up. My mechanic keeps saying is normal for a 97 motor.

    272675F8-B38D-4F24-9CF1-FFFBEF442CE3.jpeg
     
  4. '07 KW w/53' Conestoga

    '07 KW w/53' Conestoga Medium Load Member

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    Is it that simple, a different gauge?
     
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  5. '07 KW w/53' Conestoga

    '07 KW w/53' Conestoga Medium Load Member

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    Only white/gray smoke until warm...a bit of blue smoke then until hot.
     
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  6. '07 KW w/53' Conestoga

    '07 KW w/53' Conestoga Medium Load Member

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    There is a oxygen sensor that may need replacing.
     
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  7. ChicagoJohn

    ChicagoJohn Road Train Member

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    Should be. Most gauges come as a kit. I would first install the new gauge with the old tube and see how high it goes before going through the headache off swapping tubes.
     
  8. ChicagoJohn

    ChicagoJohn Road Train Member

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    I'll ask my mechanic when I get back to the yard today. Thanks
     
  9. Ruthless

    Ruthless Road Train Member

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    I had a mechanical gauge in my kw that went to 35psi. I got a new one straight from kw for an accert equipped model, which goes to 80 psi. Easy swap out.



    Lots of fuel smoke on startup is generally because it’s cold n you have excess fuel washing your cylinders when they’re cold in my experience.
     
  10. spsauerland

    spsauerland Road Train Member

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  11. '07 KW w/53' Conestoga

    '07 KW w/53' Conestoga Medium Load Member

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    Got it, thanks! I'll give it a try.
     
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