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33's to 31'sa

Discussion in '1st Gen. Tacomas (1995-2004)' started by BrianPK, Aug 17, 2008.

  1. Aug 17, 2008 at 10:35 AM
    #1
    BrianPK

    BrianPK [OP] Offroad Enthusiast

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    alright y'all, here's the skeevy...

    i've got a set of 4 33'' bfg all terrains on my rig at the moment. i own another set of 31'' bfg's on toyota rims, so it'd just be a swap.

    i'm taking a 2 hour drive this week, i'm wondering if the fuel mileage gain will be that noticeable... i know my speedo might be a lil off, but what i'm mostly concerned with is the diff in gas mileage

    any takers?
     
  2. Aug 17, 2008 at 10:37 AM
    #2
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

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    getting there....
    going from the 33 to the 31's will make mileage go up a bit i think, since the 31's wont be as heavy. go for it......let us know the results man. are the 31's on steelies or alloys........and same for the 33's??
     
  3. Aug 17, 2008 at 11:45 AM
    #3
    Janster

    Janster Old & Forgetful

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    You've got 33's on now? Did you have the speedometer recalibrated to the 33's? Did you change your gearing? IF NO - and you still have the factory gears - then with 31" tires, the speedo and distance will be correct/more accurate.

    I'm wondering how you figured out your gas mileage with the 33's - and how you'll compare it with the 31's.
     
  4. Aug 17, 2008 at 9:37 PM
    #4
    pittim

    pittim mittip

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    Pink slider.
    Math.


    Miles on tank /gallons to refill tank = miles per gallon
     
  5. Aug 17, 2008 at 9:43 PM
    #5
    JimBeam

    JimBeam BECAUSE INTERNETS!! Moderator

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    that wont work if the speedo etc is off from having 33s...

    your odometer will be off too and itll throw off your calculations
     
  6. Aug 20, 2008 at 10:23 PM
    #6
    BrianPK

    BrianPK [OP] Offroad Enthusiast

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    my speedo, and my odo are both spot on. i got 290 miles on a full tank the other day. a lot of it was high way so i'm getting about 16mpg

    so, next i'll try the 31's with another recal
     
  7. Aug 20, 2008 at 10:29 PM
    #7
    Janster

    Janster Old & Forgetful

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    How do you know your speedo is correct (with 33's)?
     
  8. Aug 24, 2008 at 10:38 PM
    #8
    BrianPK

    BrianPK [OP] Offroad Enthusiast

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    CB Radio, 3'' fabtec spacer lift and 3'' body lift flowmaster dual exhaust, deckplate mod, silencer mod, Work in progress pioneer 7900bt stereo with 5X8 infinity speakers all around, and eclipse ex400 amp
    shoot man, i live in california... lol

    seriously tho, there's a "this is the speed limit, and this is your speed" sign i pass all the time. it reads the same as my speedo. not to mention the tests i ran when i first bought the truck. comparative driving... you know.
     
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