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2.7 rpm shift range and octane

Discussion in '4 Cylinder' started by vtragweed, Dec 25, 2010.

  1. Dec 25, 2010 at 5:20 PM
    #1
    vtragweed

    vtragweed [OP] Beef Slut

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    Willie
    VA
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    afe pro-dry s filter, LCE headers, painted black steelies,color matched grill surround, URD short shifter, UWS black tool box
    whats everyones rpm range they shift at with the 2.7 and what kinda fuel are they using. ive been filling up with 93 octane for the past 2 fill-ups and trying to stay under 2-2500 rpms and it seems to suck gas more, anyone have anything similar?
     
  2. Dec 25, 2010 at 5:29 PM
    #2
    Reepur

    Reepur Well-Known Member

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    265/75/16 BFG KM2 's on XD Hoss's 2.5" lift/4xBillies, OME 885's, Firestone Ride-Rites Desert Specialties UCA Volant CAI Grillcraft Grill Kobalt Slim Line Box Weathertech mats and Ventvisors. DTRL mod. 4 Lo -Trac Mod. Int. Wiper Mod. rcbs204 4x4 LEDS URD Short Shifter Plate Front bumper with Smittybilt XRC8000 winch Body Armor rear bumper with swing out tire carrier. ATO Front Skid Ultragauge BHLM
    I shift between 2500-3000 in normal driving, use 87 octane, and am getting roughly 20-21 mpg. But I don't drive to save gas.
     
  3. Dec 25, 2010 at 5:32 PM
    #3
    90YotaPU

    90YotaPU The Messiah

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    Mike
    Union County, NJ
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    I use 87 octane and try and shift between 2000 and 2500 to save gas. On occassion though I'll run it up to 3000. With the 245/75r16's I was averaging 22 mpgs. With the 265/75r16's I'm averagin 21.5 mpgs.
     
  4. Dec 25, 2010 at 7:15 PM
    #4
    jking3002

    jking3002 Well-Known Member

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    Kentucky
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    Ricer muffler, window tent, trd shift knob.
    Black regular cab 4x4s FTW! haha

    Using 87. Tried premium for a while and if anything noticed a sluggish throttle response.

    I shift around 3000 when getting up to cruising speed. Once at cruising speed, I use whatever gear allows me to stay around, but not below 2000 RPMs. Normally around these parts (speed limits of 40), I'm in 4th gear when cruising.
     
  5. Dec 26, 2010 at 12:09 PM
    #5
    &erson

    &erson Well-Known Member

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    I tried a few tanks w/ 91-93 octane, no improvement in MPG = to back to 87 for me.
    Unless I am in a hurry, typical shift ~2,500.
     
  6. Dec 26, 2010 at 12:11 PM
    #6
    Yota1

    Yota1 Well-Known Member

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    first to second is usually around 2500, after that its what ever, even though i bought a 4 banger, it was so much for squeezing every last mpg out of it.
     
  7. Dec 26, 2010 at 12:22 PM
    #7
    saltwater taco

    saltwater taco Well-Known Member

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    Telluride, CO
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    softopper, sleeping platform
    I use 87. I think the owner's manual says to shift at 15, 25, 40, and 45. That's usually what I go by except I wait till 50 to go into 5th.
     
  8. Dec 26, 2010 at 12:37 PM
    #8
    numbah57

    numbah57 BORN AND RAISED MAUI BOY

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    kahai
    Wailuku, Maui, Hawaii
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    09 tacoma 2.7 timberland mica
    5% tint, camo wet okoles, AFE intake, shortie antenna, black front emblem/debaged, Morimoto FXR retro in blacked out stock housing, URD short shifter,no sway-bar, Ultra Guage, Camburg 2.5 coilovers and 1.25 uniball UCA, 4.88 gears, ARB front and rear, 255/85-16 KM2.
    2k, but when I'm feeling frisky I shift at 3k
     
  9. Dec 26, 2010 at 2:53 PM
    #9
    Papa Tac

    Papa Tac Adjunct Anarchist

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    Pupped my ride - Dog bench, Black stock rims, Tail Gate antitheft mod, Bed storage and sleeping platform, Action Cap w/Yakima rack and Rola basket, Seatbelt chime off, Tentasaurus
    I guess I've gotten used to my '05 Impreza 2.5rs, which I usually shift around 3k (except 1st), and get max horsies at +3500 rpm.
    I know my '10 Taco (4 cyl AC 4x4) shifts happily around 2k, but I can't help pushing it closer to 3k.
    Am I an Idiot?
    BTW 80-90% highway driving yields approximately 21-22mpg, or about 10.5l/100km.
    I try to follow the posted speed suggestio..er,ah limit, but I usually average 65-75mph, or 105-125km/h.
    She's 6 months old now and ~13,000km, totally stock.

    I find myself sneaking peeks at her like some adolescent with a crush. At home, work, friends', I find a way to just go have a look and let her beauty caress my eyes. Each time, I'm filled with this warm glow, a sense of rightness, a feeling that my manhood has just grown two whole sizes.
    I used to think I could only feel that way about my Scooby - it was her ass, her stance, her whole attitude that ensnared me. Now I have two beauties, all mine to slip into and give'er til she quivers. Like my buddy said, "If you can't strike bottom, you can at least beat the sides out of her."
    Vroom.
     
  10. Dec 26, 2010 at 10:41 PM
    #10
    Kelson

    Kelson My Truck is Cuter than Yours

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    1st to 2nd 2300-2500, everything else around 2k. i get around 23 in the city and 25-27 if i do freeway driving.

    i do end up shifting at 5600 tho at times....
     
  11. Dec 26, 2010 at 10:44 PM
    #11
    numbah57

    numbah57 BORN AND RAISED MAUI BOY

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    kahai
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    5% tint, camo wet okoles, AFE intake, shortie antenna, black front emblem/debaged, Morimoto FXR retro in blacked out stock housing, URD short shifter,no sway-bar, Ultra Guage, Camburg 2.5 coilovers and 1.25 uniball UCA, 4.88 gears, ARB front and rear, 255/85-16 KM2.
    Yah Maui doesn't have much of freeways or high ways, you can't go more than a couple miles without having to stop. I usually get around 24mpg ( ultraguage said so) pretty much all city driving.
     
  12. Dec 26, 2010 at 10:52 PM
    #12
    Kelson

    Kelson My Truck is Cuter than Yours

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    even with the freeway over here you end up stopping alot...traffic is fkn horrible here lol...
     
  13. Jan 5, 2011 at 6:08 PM
    #13
    davidsdad

    davidsdad Well-Known Member

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    I always shift at 3000 rpms!!!!
     
  14. Jan 5, 2011 at 6:26 PM
    #14
    AndrewFalk

    AndrewFalk Science!

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    :)
    2nd @ ~2500
    3rd @ ~2100
    4th @ ~2300
    5th @ ~2100

    Usually gives me pretty smooth shifts as well as great fuel economy.
     
  15. Jan 6, 2011 at 9:56 AM
    #15
    JDCPA

    JDCPA Well-Known Member

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    Jim
    SW FL
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    The computer in the 2.7 will not adjust the timing and spark advance to use premiuim fuel. Putting anything higher than 87 in it is a complete waste of money, the truck will not use the additional octane.

    The computer in the 4.0 will adjust the timing and the spark advance for premium fuel and it will make more power with 91 octane fuel.

    I shift whenever the slushbox feels like it.
     
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