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Gas Mileage Equation for 80 series with 33s

Discussion in 'Chit-Chat' started by Capocaccia, Aug 14, 2006.

  1. Capocaccia

    Capocaccia

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    Anyone know it? Im going to need it by the end of today.
     
  2. wob

    wob

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    As opposed to stock? Roughly take your calculation and multiply by 1.06 (add 6% to your calculation). I think this is what you were asking.
     
  3. firetruck41

    firetruck41

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    miles driven/gallons used=mpg
    275/70/16=31.2 inches
    285/75/16=32.8 inches

    Using the speedometer calculator at www.4lo.com, at an indicated 100mph, the bigger tire will be going 105.1mph, so adjust your calculations by 5.1%

    Of course you speedometer may be off by 5%, and the tire size may be slightly different depending on tire manufacturer and wear, in other words your theoretical calculation may not perfectly reflect reality.
     
  4. cruiserman

    cruiserman

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  5. TX_TLC

    TX_TLC

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    My actual gas mileage didn't change at all from stock to 285s once the correction was applied.
     
  6. Shahram

    Shahram I ain't got herpes no more.

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    Same with mine, the difference was extremely negligible...a couple tenths of a mile per gallon, at the very most. My mpg rate is much, much more affected by things like load weight, A/C usage, driving style and terrain (ie city vs. freeway, lead foot vs. mellow, hilly vs. flat, etc.).
     
  7. dieselcruiserhead

    dieselcruiserhead

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    yes, gas mileage of 80 + 33's = s***.. :flipoff2:
     
  8. lx450landcruiser

    lx450landcruiser Moderator

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    to be honest my gas milage is acctully much better after i went to 33s? dotn ask me why but i can gurentee its not from somrthing else. i saw a jump of about 1-2 mpg, you tell me why?
     
  9. cruiserman

    cruiserman

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    It probably coincided with the change in fuel formulation between winter and summer.