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Tire weight

Discussion in 'Wheels & Tires' started by danteisme, May 1, 2012.

  1. May 1, 2012 at 11:40 AM
    #1
    danteisme

    danteisme [OP] Well-Known Member

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    since i have a 2.7 taco, adding weight to this truck is always a concern. right now i hav p265 70 16 hankook dynapros on the truck. i forget what the weight difference was between these and stock, but i notice no difference at all in power (or at least not drastic enough for me to notice). mpgs remained roughly the same as well (less than .5 mpg difference). these will need replaced by the end of the year, i'm entertaining the idea of going to the p265 75 16 of the same tire(love these tires). the difference in weight between the 265 70 16 and the 265 75 16 is 2 lbs. think i will notice anything going another 2lbs heavier? in my head, i;m thinking no but i'd like your thoughts.
     
  2. May 1, 2012 at 1:13 PM
    #2
    LUSETACO

    LUSETACO Here for the Taco Pron

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    Yes
    The weight won't matter so much as the larger diameter. I upsized to 265/76 16's and downsized back to stock a week later and was amazed at how much power it had.
     
  3. May 1, 2012 at 1:20 PM
    #3
    danteisme

    danteisme [OP] Well-Known Member

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    interesting. i think its only .5" more diameter than what i'm currently running.
     
  4. May 1, 2012 at 3:38 PM
    #4
    Yamaha Dave

    Yamaha Dave Well-Known Member

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    One of the largest weight changes you can make is when you go from a P-rated tire to something like a Load C,D,E. Most P-rated tires are within 1-2 lbs. of the stock tires which is 37lbs depending on the year and size. Most C-load tires are in the 41-47 lbs. and even heavier for D and E.
     
  5. May 1, 2012 at 5:27 PM
    #5
    danteisme

    danteisme [OP] Well-Known Member

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    thats why i'm sticking with P rated. i don't do enough heavy off roading, or hauling etc.. to warrant me getting anything but a p rated. which stock tires are you referring to as the 37lb ones?
     
  6. May 1, 2012 at 5:45 PM
    #6
    KenLyns

    KenLyns Lord of War

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  7. May 1, 2012 at 5:48 PM
    #7
    danteisme

    danteisme [OP] Well-Known Member

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    ah ok, my truck is a standard cab so it only came with the crap 245 75 16 (i think) tires. i may have weighed a little less stock, but even with the 265 70 16s the difference is negligible.
     
  8. May 1, 2012 at 5:57 PM
    #8
    0uTkAsT

    0uTkAsT Gunslingin' Gearhead

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    Stuff that makes it easier to run over other stuff.
    lol, the difference between my 245/75-16 street tires and 265/75-16 All Terrains was pretty big, but definitely not all that bad with my 2.7L 5-speed (I think mainly because I also switched from the stock steel wheels to aftermarket alloys), but then I went from those 265/75s to 285/75-16 10-ply (E) Mud Terrains and the truck is an absolute dog now. I can barely maintain 50 MPH going up hills in 3rd gear sometimes. I was expecting significant power loss, but not this dramatic.
     
  9. May 1, 2012 at 6:09 PM
    #9
    danteisme

    danteisme [OP] Well-Known Member

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    when you went from 245 to the 265s did you stay P rated?
     
  10. May 1, 2012 at 9:25 PM
    #10
    KenLyns

    KenLyns Lord of War

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    The Kumho MTs are 60 lb, or an increase of 28 lb over stock. Rule of thumb for unsprung weight affecting vehicle handling is a factor of 3. So the effect of the heavier tires is equivalent to carrying 28 x 4 x 3 = 336 lb extra payload in the bed.

    http://www.tirerack.com/tires/tires...ehicleSearch=false&fromCompare1=yes&tab=Specs

    Did you recalibrate your speedo? If not, 50 mph indicated is actually about 54 mph. :)
     
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