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Tire Pressures

Discussion in 'Wheels & Tires' started by Old Jedi, Oct 8, 2014.

  1. Oct 8, 2014 at 4:52 PM
    #1
    Old Jedi

    Old Jedi [OP] New Member

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    Glenn
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    I don't see much on here about this, but when I got home from the dealer I noticed they had put 32 lb of air in all tires. The door jamb says 30 in front and 33 in rear. I just don't think this is enough...

    I cranked mine up to 40 all around. This is the Platinum with 20" wheels and Bridgestone Duellers. I may back off to 38 or so, but at 40 it feels okay to me. I just don't like the look of the sidewalls flexing at 32.

    What say you all?
     
  2. Oct 8, 2014 at 5:34 PM
    #2
    Relentless

    Relentless Tundra newb Vendor

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    Whatever you prefer as long as it's within the max PSI spec of the tire and understand the different pressure may cause the tires to wear differently.
    Higher pressure will make the centers wear more, lower makes the edges wear more.
     
  3. Oct 8, 2014 at 6:26 PM
    #3
    Old Jedi

    Old Jedi [OP] New Member

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    Yes, too high or too low is bad. I was looking for what everyone thinks is the "just about right" pressure... I believe the 32 psi from the dealer was more for spongy ride than good tire wear. The max for these tires is 44. 38 to 40 sounds about right to me.
     
  4. Oct 8, 2014 at 8:20 PM
    #4
    Relentless

    Relentless Tundra newb Vendor

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    A chalk test is the simplest way to determine ideal tire pressure then. That way you aren't just guessing if the pressure you've decided to run may have uneven tread contact leading to accelerated wear or too little contact for adequate traction in adverse road conditions (assuming current tire wear is even)
     
    RingSteel and Sean266 like this.
  5. Oct 28, 2014 at 9:53 PM
    #5
    Patriot

    Patriot New Member

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    Old Jedi- I just recently replaced the OEM Bridgestone's on my 14 Platinum CM with Michelin LTX MS'2s and am running the MS2's at 36 psi per recommendation of my local Discount tire.

    Image 1.jpg
     
    tuna813 likes this.
  6. Oct 29, 2014 at 12:56 PM
    #6
    TT-Truckin

    TT-Truckin Toyota Tundra Truckin'

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    My Toyota dealer I take my 07 dc in for service has always set the tire pressure at 38 I'm on Cooper tires.
     
  7. Oct 30, 2014 at 1:47 PM
    #7
    RingSteel

    RingSteel CH-47 Super C Mainz-Finthen Army Air Field 73-75

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    Chalk test:
    First find a kid with one and grab and run ...wait if your over 60 yah may want go to wally world instead.....
    Run a few lines across each tire....
    take a short drive, half block? or so....

    look at lines......if only the center is worn to much pressure........
    Outer edges worn and little or none of the center not enough...
    even wear all across....just right.....

    just in case someone has not ever done it that way..... :cheers:
     
    UPSed and Sean266 like this.
  8. Jun 28, 2015 at 8:56 AM
    #8
    ausei

    ausei New Member

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    i read on my nittos max psi is 80....it seemed super high. so i put 48 and i feel like i can put more because there is still some "flex" in my tires. and i have been noticing uneven wear on my tires...before i filled it was around 32/33

    ill have to chalk test it.
     
  9. Jun 28, 2015 at 1:45 PM
    #9
    14burrito

    14burrito New Member

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    Duellers are rated 2400lbs at 44psi.

    14 CM 4x4 shortbed 5.7 weighs in just shy of 6000lbs.

    2400 x 4 = 9600
    6000 / 9600 =.625
    44psi x .625 = 28psi

    In a perfect world, that is your optimal psi based off the tire mfg specs.

    Chalk line test FTW.
     
  10. Jun 29, 2015 at 6:23 PM
    #10
    csuviper

    csuviper Moderator Staff Member

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    In a perfect world where you don't have the added force of bumps and imperfections in the road
     
  11. Jul 7, 2015 at 8:18 AM
    #11
    csuviper

    csuviper Moderator Staff Member

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