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MPG with fuel injection

Discussion in 'The Garage' started by silverado69, Aug 14, 2006.

  1. silverado69

    silverado69 Newbie

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    Hey im looking into buying a 1st gen k5 that has been converted to fuel injection or has a swapped in fuel injected motor. I ideally want 6+in of lift and 37-38in tires, 14 bolt, d60 front. Was seeing what everyone with good fuel injection was getting for gas milage. Also curious about TBI milage also. I have a 98 silverado with 5.7 vortec and only get about 15. Thanks.
     
  2. Cricket

    Cricket 3/4 ton status

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    I didn't see that much improvement in mileage with TBI. You will see better throttle response, smoother running, easy cold starts. The best improvement is no more carb stalling off camber. That alone was worth the swap.
     
  3. sweetk30

    sweetk30 professional hooker Premium Member

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    carb ? whats a carb?

    tbi any day of the week. and better than carb for milage and all the other stuff.
     
  4. Metrodps

    Metrodps Strange but nice guy Premium Member GMOTM Winner Author

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    1987 305 TBI; 700r; 3:08 axles P235/75R15 Ring gear 9.50 in, Saginaw (S.P.O.) I get 17 mpg if I cruise at 65mph. Over that it goes down!

    :k5: :usaflag:

    [​IMG]
     
  5. silverado69

    silverado69 Newbie

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    what about you guys with the aftermarket fuel injection systems? Accel super ram, edelbrock FI, or holley? Anyone know if anyone runs these or possibley LS1's or vortecs? Im not a big fan of the TBI system.
     
  6. u2slow

    u2slow 1/2 ton status

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    There's only one kind of good fuel injection.... and gas has nothing to do with it. :haha:

    I get 17mpg (mixed, mostly city) with an SM465 and 33'" Muds.
     
  7. silverado69

    silverado69 Newbie

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    So whats your fuel injection type and motor? And what is the one kind of good fuel injection?
     
  8. sweetk30

    sweetk30 professional hooker Premium Member

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    i have had a good running tbi 350 in a 88 truck and my 96 vortec in my truck now. all i am going to say is vortec sucks butt. tbi anyday. or aftermarket system.
     
  9. u2slow

    u2slow 1/2 ton status

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    Mechanical injection.... 6.2L diesel.:p:

    [/end thread hijack]
     
  10. Thunder

    Thunder 3/4 ton status

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    TBI here and lovin it. I get 15-16 average city/ highway commuting. 350, 700r4, 33s with 3.73 GR
     
  11. Metrodps

    Metrodps Strange but nice guy Premium Member GMOTM Winner Author

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    what I was talking about is a blower on the motor for performance! That saying goes back to the 80s when some of you weren't around.........
     

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