Recent content by jadatis

  1. J

    Tire Pressure of LT Tires: Who should we listen to?

    So then part is more heatproduction at same deflection for LT. And part is lesser sufacelength so surface on the ground wich gives lower loadcapacity at same pressure. But smaller surface on the ground gives a bit less heatproduction of the treath, wich then compensates it a little. Newer...
  2. J

    Tire Pressure of LT Tires: Who should we listen to?

    Lately adjusted my spreadsheet, so I can make lists with in front of psi other calculation then behind. For the RV world use that for single and duall load. But made a mistake so front calculation used parts of rear data. I saw that when calculating back your 80psi, must be 90% from 2x 3197lbs=...
  3. J

    Tire Pressure of LT Tires: Who should we listen to?

    Then I made you a list for maxload 3197lbs AT 80 psi upto 160kmph/99mph, wich is referencespeed for Q to V speedrated tires. For that speed the maxload is calculated, and for higher speed, I have a better system then the offical used. Calculated with my extra tight formula, mayby too tight, so...
  4. J

    Tire Pressure of LT Tires: Who should we listen to?

    You simply devide GVWR by 4, and the axleloads are different front and rear. What you need are the GAWR's or better real axleloads. Only driver front more heavy, and fully loaded rear more heavy. .
  5. J

    Tire Pressure of LT Tires: Who should we listen to?

    End 2007 I got hold of the official european calculation, and went running with it. Got wiser in time, and now call myself "pigheaded Dutch selfdeared Tirepressure specialist" Can make a pressure loadcapacity list in wich 90% used of the loadcapacity belonging to the pressure for 99mph...
  6. J

    Tire pressure for BFG KO2's

    You have to look at sidewall of tires, to determine the next. 1. maximum load or loadindex. 2. Will call it AT-pressure / official name reference-pressure, is pressure for wich the maximum load is calculated for reference-speed of yours probably 170km/h, and this is not the maximum cold pressure...
  7. J

    Tire Inflation (LT tires)

    What the car manufacturers used before the "Ford-Firestone-afaire", is the gross axle weight ratings of the car ( GAWR) front and behind mostly diferent. Mostly back higher then front. In America they used a power for calculating weight for a sertain pressure of 0.5 for standard load tires and...
  8. J

    Tire Inflation (LT tires)

    I am the introducer of this formula, and its the one the tire-manufacturers use. But you calculated wrong , I come to 23,72 psi wich is verry low. But you often see that at cars for terain,they have often oversised tires. already am working on a better system. If you keep it at 30 psi you have...
  9. J

    Proper tire pressure for 245/70/17 winters?

    I have been busy with calculating tire/tyre-pressure wiht use of the formula of the European ( ETRTO) wich is , so I discovered lately, other than the American TRA formula. this is the formula the European car-manufacturers also use to determine the advice pressures for on the plancard somewhere...

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