An E-load tire needs higher pressure for the same load then a Standard load P-tire.
Its because the E-load is stiffer so the overgoing curve from unloaded radius of tire to flat on the ground is larger.
This gives a smaller surface on the ground at the same deflection.
To compensate that the pressure must be higher.
But this does not mean the E-load cant go low in pressure, if the load on tire is low enaugh.
Extra reason why you need even higher pressure if your tires a Offroad or ofroad-looking with large profile blocks that cover a part of the sidewall, so lesser sidewall is left to flex.
Here a picture about it, wich I made.
but I am able to present you a pressure/loadcapacity list for your tire, made with my extra save formula , so it would sertainly not give to low pressures.
You need to give me , 1. maximum load or loadindex, 2. Loadkind already given but search if you find AT 80 psi( general for E-load) on sidewall, sometimes its for instance 77 psi for some sises, and 3. Speedcode of tire, but this can not always be found, so if not given , no problem , we will have to do without that.
But then we have a list, But determining the real weights on tires is another most difficult thing.
The car maker uses the GAWR's( gross axle weight ratings, what to law is maximum weight on the axle) to determine the advice pressures, and as long as you did not weigh, we can use that , and can mostly be found on the same plate as the pressure-advices.
If you have determined real weights, even add 10% to that for reserve, and shifted load R/L.
If you find speedcode of tires , then also the maximum speed you use and wont go over for even a minute , I would like to know.
Pressure advice is also different for other speed.
Here is a link to a map on my public map of One-drive, that belongs to my hotmail.com-adress with same username as in this forum ( so jadatis) , with in the USA map the pressure loadcapacity lists in lbs and psi, that go pretty low ( 25psi for a E-load), and made with my determined extra save calculation .
Extra save P/LC lists also a picture in wich I try to explaine why a stiffer tire has lesser surface on the ground.
