I am able to calculate a highest pressure, at wich comfort and gripp is still acceptable.
Because you had a blowout, and that is mostly courced by to low pressure for the speed and load, I think my answer will come above 80 psi at least for one axle.
And above 80 psi cold is not allowed anymore on an E-load tire ( or do you have F-load)
But then it would indicate that you better go for tires with higher maxload.
Need from vehicle next.
GAWR's , GVWR, configuration ( 2 axles I think, but rear Dual or Single load) , better those weighed axleloads, even better axle-end.
Then from tires next
Maxload or loadindex
Loadrange to determine pressure behind AT is called reference-pressure.
Speedcode or max allowed speed of tire.
I know, you did that routine, but I pigheadedly think I can do it better.
After that I can yudge better if you can go higher.
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