TW's active 4runner builders BS thread

I was tempted to pick up a set but really want a 285/75/17 tire. Hmmm

 

Pm me your info.

 

anyone familiar with tire load ratings?

The st maxx tires are an E tire.

Load Range Ply Rating Abbreviated Maximum Load Pressure
B - 4 ply - 35 psi (240 kPa)***
C - 6 ply - 50 psi (350 kPa)***
D - 8 ply - 65 psi (450 kPa)***
E - 10 ply - 80 psi (550 kPa)***
F - 12 ply - 95 psi (650 kPa)***

 

Yes!

 

yes

 

I know that my dads 3500 diesel has load range e and on the 4Runner I air down to like 12-14 and they finally start to get a nice bulge.

 

All BFG sells in 285 are E range. Not so happy about it but I will roll with it.

 

Yuck

 

E Rated tires are stiff, too stiff for my liking, that's the main reason I went with Generals. They offer a 285 D-Rated tire

 

Educate me -

So a load range E is a stiffer tire, but it also has more plys. - sidewalls are stronger? it takes more to get a bulge when airing down?

Is a stiffer tire good?

is the 80 psi the weight it can handle or the air pressure that the tires need to be run at

 

So I currently run BFG 265 65 17 at 40 lbs each - 681 revs per mile

The cooper st maxx - 255 70 17 are 50 lbs each - 634 revs per mile

 

They are stiffer and have more plys. But you want to get that bulge when you air down, so you can get more grip. With a lighter vehicle like the 4Runner you will have to air down more to get that bulge, which is not necessarily good. You will also have a harsher ride because usually 3/4 ton trucks use them and have more weight to them.

 

80 is the max. I read some where to take the factory pressure for our rigs and add 12 for a e rated tire so that's what I do. It was a long article on tires and seemed to make sense.

 

ahhh I see..

 

factory pressure? as in the air pressure in stock tires?

 

damn.
now its going to want me to do more mods.. like hammer and cut stuff to fit a 33"

 

body lift

 

33's for me in 2 weeks!

 

Ya the one on the sticker in the door jam.

You can also do the chalk test to get the exact pressure for your rig.

 

Most people don't have a ton of fitment issues with the 255's as compared to 285's. You should be fine if you've flattened the pinch weld.