Wayne M. asked
Tireman, Here is some information on my Toyo 265/75R22.5 LR-G tires. Can you confirm I am reading the tables correctly?
PSI 70 75 80 85 90 95 100 105 110
Dual 3625 3705 3860 4040 4205 4410 4525 4685 4805(G)
Sing 3875 4070 4300 4440 4620 4805 4865 5150 5205(G)
Measured scale weights on each corner
RF: 4650 LF 4750
RR: 9000 LR 8250
Right side has Refer. There isn’t anything in the bays (not all the way
through bays) that I could possibly switch around for even distribution
so I have to go with the heavier weight.
I’m thinking 100 psi for the front.
What would my rears be with a fudge factor?
First off , I have to thank you for providing the information on your specific tires and your actual tire loads for each end of your axles. I prefer data to guessing.
With 4,750# on the heavy end of the front axle we see that 95 psi can support 4,805 so that would be the MINIMUM Cold Inflation Pressure for your fronts (remember all tires on an axle should have the same CIP) and I suggest you add 10% (10 psi) cushion to get 105 psi CIP on the fronts.
The rears are dual, so looking at those inflations. 9,000 divided by 2 gives 4,500# per tire, with the 90 psi being the minimum inflation needed to support the measured load. Adding 10% or 9 psi gives us a suggested 99 psi. 100 is easier to remember and measure so lets go with 100 CIP on each of the 4 rear tires.
Comment: Please always adjust inflation up and avoid going down no matter how close the weights are.