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One formula to rule them all

Discussion in 'Wheels & Tires' started by Samoan Thor, Oct 25, 2017.

  1. Oct 25, 2017 at 10:26 AM
    #1
    Samoan Thor

    Samoan Thor [OP] God is technically an alien

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    What is the formula for psi on all different tire sizes? For example wheel size+tire size=34 psi? What is the correct formula? I wanted to see if anyone knows what it is so I don’t have to set a psi front and rear, test, add more or take out air, test, it’s too much work, I wanna get straight to the results with a proven formula, thanks.
     
  2. Oct 25, 2017 at 11:00 AM
    #2
    bobeast

    bobeast really old member

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    - Bull Bar - LED Bunny Burners - AMP retractable running boards - Headlight leveling retrofit - P3 Brake Controller - 60% rear seat delete - relocation of Sub to rear wall - Bilstein 5100 x4, top setting with 2 shims per side - Coach builder +2 rear shackles w/carrier bearing drop - Firestone Air bags - on-board compressor with auto-leveling - Dual Undercover Swing Boxes. - P285/65/R20 (34.6") BFG TA KO2's - TRD Front skid plate - Pop & Lock Tailgate lock - Remote Tailgate mod - LED Headlights - Nav Bypass - iPhone integration - Serius/XM retrofit - 25% front tint - Bizon electric tonneau cover - Power folding tow mirror upgrade - 2010+ leveling Headlight mod - Auto-fold mirror mod. - one-touch lane changer mod - Flash to open garage opener mod - Rigid H/L fog light upgrade - Pushbutton / Remote start mod.
    I don't think its going to be that easy. It depends on the load rating of the tires, as well as the weight they are expected to carry, and to a lesser degree, your expected ride quality. The closest thing I've heard of to get it right is the Chalk Test.
     
  3. Oct 25, 2017 at 11:19 AM
    #3
    Bprose

    Bprose Old member

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    Someone on here mentioned a chalk test that made a lot of sense. Wasn’t a formula though.
     
  4. Oct 25, 2017 at 11:24 AM
    #4
    Samoan Thor

    Samoan Thor [OP] God is technically an alien

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    Kings F&R, no sway bars
    k, it was worth a shot, I thought it would be that easy but I guess chalk test it is, thanks

    yea chalk test will be the way, I was just wondering....
     

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