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87-91 TBI Owner's

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Hossbaby50, Jan 5, 2002.

  1. Hossbaby50

    Hossbaby50 3/4 ton status

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    87-91 TBI Owner\'s

    What type of gas mileage do you get? What has been done to the motor? My boss is selling his 77 because he only gets 7 MPG and wants to get something that gets better mileage ex: Heep, etc. Thanks

    Harley

    My Chevy isn't broken, its just out of gas.
     
  2. mpascino

    mpascino 1/2 ton status

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    Re: 87-91 TBI Owner\'s

    mileage depends on a lot of things. But when my truck was stock with 3.08s a 700r4 and stock tires it got an average of 12 all depending on how it was driven. There wasn't too much of a difference between highway and city driving.
    Hope this helps, Mike

    The jeep eater ......[​IMG]
     
  3. HarryH3

    HarryH3 1 ton status Author

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    Re: 87-91 TBI Owner\'s

    I had an '87 for several years. It got 13 mpg, just about every tank full. Stock engine, 700R4, 3.73's, 33 inch tires. That was when I lived at sea level, in Houston. Might be slightly lower up here in the mountains.

    <font color=black>HarryH3 - '75 K5</font color=black>
    <a target="_blank" href=http://www.angelfire.com/super/ThunderTruck>www.angelfire.com/super/ThunderTruck</a>
    It's a great day to be alive...
     
  4. blk87K5

    blk87K5 1/2 ton status

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    Re: 87-91 TBI Owner\'s

    When my Blazer was stock, I also had the 700r-4, 3:73, 33" tire combo, and with my Gibson exhaust and K&amp;N filter, it got about 15-16 mpg. on the highway and 14-15 in town. With all of the stuff I have done to it, it now gets about 7-8 everywhere.

    '87 K-5 w/ 350 TBI, 700r-4, Atlas II, D60 & 14Bolt, 6" susp., 1" ORD body, 35" Claws
     
  5. CaptCrunch

    CaptCrunch 1/2 ton status

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    Re: 87-91 TBI Owner\'s

    10-15 is the range usually. Most likely the 11-13 range. If you want MPG then go with a MPFI setup like on the Vortec trucks. Otherwise IMO you can get better milage then the TBI with a Quad and decently done truck

    -Mikey
    1987 Chevy K5 Blazer- 350 TBI
    <a target="_blank" href=http://coloradok5.com/gallery/captcrunch>http://coloradok5.com/gallery/captcrunch</a>
     
  6. wayne

    wayne 3/4 ton status

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    Re: 87-91 TBI Owner\'s

    I only ever checked my milage once and that was when the truck was stock. I got just over 13mpg on the highway running almost 80 mph through the whole tank.

    See <a target="_blank" href=http://coloradok5.com/gallery/Waynes-Toy>Project Mighty Mouse</a> here.
    <font color=blue>Wayne<font color=blue>
    <font color=blue>Happy Trails<font color=blue>
     
  7. testosterone

    testosterone Registered Member

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    Re: 87-91 TBI Owner\'s

    i get about 12-15mpg with my 90
     
  8. Burbinator

    Burbinator 1/2 ton status

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    Re: 87-91 TBI Owner\'s

    My '91 V2500 Sub, bone stock, gets about 12-14 mpg. With something hooked on to the stern it goes down a little, of course.

    Haze gray and underway...<font color=blue>or blue, in my case.</font color=blue>
    <a target="_blank" href=http://community.webshots.com/album/26246038MbQsYWKcbo>U.S.S. Nimitz II</a>
     
  9. Bubba Ray Boudreaux

    Bubba Ray Boudreaux 1 ton status

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    Re: 87-91 TBI Owner\'s

    '87 stock with 3.73 and 33s. Just got back off a roadtrip. I ran about 14-16 most of the time running 75, did hit in the 17 range, but that was running 60-65 through a storm. By the way, I flipped 150K miles on the trip.

    Bubba Ray Boudreaux,
    Official Colorado K5.com Fantasy Football Choke Artist!<a target="_blank" href=http://community.webshots.com/user/mdntrdr1>http://community.webshots.com/user/mdntrdr1</a>
     

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