Or you can use my made spreadsheet for it.
then in lack of seperate weighed wheel-loads , or axle-loads, we will have to do with the GAWR ( gross axle weight rating) . How did you determine that 2270 per wheel?
From tires the maximum load or loadindex and the needed pressure for that wich is not even the maximum pressure of tire, as most think.
For E load its 80 psi , so only need the maximum load or sise of tires .
Oh wait I saw your sises and ST already and googled them , found on Amazon Maxis tire and LI 117 most likely also go for your tires and that is 2833 lbs.
Then asuming that 2270 is your GAWR /4 I can fill in the spreadsheet.
But if not correct data , give them and I will correct it.
So GAWR 9080 Lmax/tire 2833AT 80 psi. gives needed pressure of 71 psi in my calculator.
But to give a ST tire the same deflection of a LT tire with same sises, wich make them last longer, and chanche on tire failure by only driving practically zero, you should substract 6 LI steps so 111 loadindex with only 2404lbs a tire.
Then the advice-pressure rises to even 85psi wich is above that 80 psi but allowed by TRA up to 10 psi higher.
This would give the tires maximum savety, and makes me suspect that the tire-chanche was because of tire failure with the D-loads.
My system gives even poor reserve for the E-loads and a reduced speed for that reason of 60m/h but that is even going from normal 87m/h , but mayby I am a little to hard in my yudgement.
So keep them at 85 psi if all the data used is correct and your tires might even last 6 years, and still no screws that shutter loose from the woodwork.
Then for my learning give the maximum tonge weight of a 5th wheeler for law.
For travel trailers its 15% and minimum 10 % , I already learned.
I had set it on zero in the picture , because I did not know.
Also confirm if you had many tire failures with the D-load.
I asume your valves are up to that higher pressure , and also the rimms have a maximum mostly.
Linear Mode
