Been running a set of 245/50/16s for 5k miles or so @ 15psi since day one. Tires are wearing perfectly even. Car handles fine at highway speeds.

Edit: first set I had I ran at 30psi and found the center wearing FAST. I dropped down in increments of ~2-3psi until I got to ~12psi. The centers were still worn more than the outsides.

Just a heads up.
Ryan

 

How is your MPG with that? Any change?

 

Werd!

Mine are wearing really well (even) too. I have mine at about 17 psi. Still handle fine!

 

Hope you dont have to make any quick manuvers running 15lbs on the highway. I run 17-18 at the track and 30 on the street....I did drive home one time from the local track with the the pressure at 17 and I could tell the difference...the rearend was very wobbly plus if you hit a pothole your gonna stand a good chance of cutting down a tire and damaging your wheel.

 

I disagree. Nitto's are not know for handling no matter if you drive around on them with 15psi or 30psi. They are not going to handle like a regular street tire.

I think you are way over exagerating the wobbliness of the rear end with the Nitto's. I can't tell a difference with the tires at 25 psi or at my 17 psi. But I also run my car without a front sway bar, so handling is not it's strong point.

So, you have to make a decision on if you could put up with a little worse handling, or wear the middle of the tires out pretty quickly.

And, when I drive my car to work I drive on soem of the worst roads in Houston. There is construction on literally 60-70% of the roads downtown, and there are multiple potholes. I don't see why there would be any more of a chance of the tire cutting and causing damage to the wheel. If anything the tire would absorb more of the contact and protect the wheels more.

Chris

 

I agree that nittos are not the best handleing tire ......but they will handle better and be safer on the street at 30# as apposed to 15#......thats a fact because 30# is closer to what GM recommends base on the vehicle wieght(its on the inside of the door). The center want wear out quicker because the tire isnt over inflated at 30#. But run what you want too, just be careful.

 

I get near 20mpg on the freeway with all boltons and a 235/242 baby cam .

Edit: To answer your question - no change in MPG.

Ditto Chris buoi .

Ryan

 

Sorry but you are way wrong about the center wearing out. Anything over 24-25 will wear the center bald in a hurry on the 245-16 size and my pal runs his 275-17s at 21 to keep them flat.
This is not conjecture or hearsay. It's actual experience.

 

I agree that GM recommends what they do based off of the weight of the vehicle, but that is also based on the factory tire. When ever you change to a different tire, especially something meant for a different purpose with way different specs, you will have to change the tire pressure in order for it to work best on your ride. This does not come without testing to see what is best for you and your car. What GM recommends is not always what is best for the vehicle.

I used to be big time into offroading and Jeeps. There is a test that those guys do when they put bigger, wider, or even just stiffer tires on the Jeep. What you do is take a piece of white chalk and put a line about 1" thick across the tire (width ways). Then drive the vehicle around for a couple miles and see which part of the line is worn off the most. If you are running too much air pressure, then the line will be worn in the middle. If you are not running enough then the line will wear on the outsides.

I'd be willing to bet money that if you did this test with Nittos at 25 or 30 psi the line would be worn in the middle. Don't take my word for it, DO THE TEST!

Ryan is on his second set of this size Nitto and his have worn much better at 15 psi (I have seen with my own eyes), so when I bought mine I decided to do the same thing. This is not just heresay, I have seen it work.

Chris