tire pressure on Nitto Ridge Grapplers

shitty how.... they pretty much own the street tire game, best tire I've ever owned was the pilot super sport on my evo, know dozens of people that swear by Michelin tires. Maybe they just weren't right for your application but calling Michelins shit tires is a big lol.

 

He's talking out of his other end...

 

So calculating would get you roughly 36.72 psi? Not that anyone measures pressure to that the decimal - this is more for my understanding of the math that I was learning it correctly. (Each psi step is a delta of 37 on the load so at 35 psi load is 1890 + 1.7*37 hence 35+1.7 = 36.7)

 

I use to love Michelin tires but after about 5 sets on suburbans they ride great but dry rotted very easy, they own bf Goodrich and again love the tire. But those too are a high ass maintenance tire. If your running the pilots on a road course maybe so but for my fun cars nitto drag radials hook better than the pilots all day long. For my wife's Lexus once the stock Michelins were worn out I got better riding and longer lasting tire out of a set of Fusions. To me they are now over rated and way over priced, just like the k02s. Give me a Toyo or a Nitto all day long.

 

That was the point I was ultimately trying to make. Running the same PSI that works in a 4ply may not be best for a beefier tire (ie 6, 8, 10ply, etc). Like you said above wear will most likely be compromised among other things due to heat alone. I was just trying to say it wont be likely that the stock tire PSI works perfectly for the Nittos.

 

Is your truck heavier in the front? Standard 3G Tacos are heavier in the rear so I would have expected those numbers to be flipped.

 

Hmm I would assume the opposite. That engine weighs a decent amount. The bed is pretty light (when empty). That’s my thought at the least. Been wrong once or 15 times though.

 

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Just seems like the sweet spot. I used to run 36 on all four.

 

That was my exact thought... but... 2910lbs front / 3280lbs rear

 

Aprox. 3rd Gen weight distribution: 55 F / 45 R.

https://www.motortrend.com/cars/toyota/tacoma/2016/2016-toyota-tacoma-v-6-first-test-review/

 

and older gens - like gen 2s (2013) were actually factory spec'ed with higher psi in the rear:

 

This is literally worse than an oil thread..

 

GAWR is the gross axle weight rating (not the actual weight of the truck). Its the max each axle can handle. The rear is a straight axle and can handle more weight than the IFS.

 

yep agreed - just noting that the numbers are nearly the same as a the previously spec gen 2 with offset tire pressure with more in the rear so as to support heavier loads... weird that at nearly the same weight and tire size the gen 3 doesnt have the same spec for tire pressures front and rear

 

I tried 2 sets of MS2s on my '07. Both succumbed to dry rot at 30,000.
I said they are, "the shittiest tire I ever owned"... I stand by it.

 

I second that, shit tires they are, never lastedl. several sets on 3 suburbans and 2 Lexus, and they dry rotted.

 

It is funny that you say they dry rotted. All tires dry rot, but Michelins tend to get that knock because they last so long that you see what happens to tires when they get old. Most other tires are well worn out before that starts to happen.

 

They dry rotted out in two years, they were replaced and they did it again. My vehicles stay in a climate controlled garage and never had an issue out of my Nittos on my Mustang and they are 10 years old with 8k miles on them.

 

How often to you guys change out the old air in your tires? I'm running 30psi in my Nittos, if that makes a difference.

 

two times a year, I changed out my summer air for winter air last week