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-   -   upgraded tires, what tire pressure? (http://www.ramforumz.com/showthread.php?t=146098)

hriczko806 06-26-2013 08:44 PM

upgraded tires, what tire pressure?
 
I went from the stock 265/70/17 and upgraded to 285/70/17. The stock tire pressure is 35PSI I believe. What should I put in the 285's? Should I have a little bit more pressure?

Grubrunner 06-26-2013 09:09 PM

Leave it the same.

NWRQC 06-26-2013 09:44 PM

Quote:

Originally Posted by Grubrunner (Post 1135786)
Leave it the same.

This^
Keep it with the OE spec.

hriczko806 06-26-2013 10:29 PM

Ok thanks, Ill leave it the same as the 265s

Grubrunner 06-26-2013 10:42 PM

Good call.

It's not a significant alteration in size to warrant any drastic PSI changes. Also, my suggestion was based on my assumption that you stuck with near or identical tread pattern [tire type] to OEM, as you didn't disclose anything other; correct?

HERE is a good read regarding your concerns and then some more.

Though, I'll say up front, I don't agree with all the content.

Good luck.

hriczko806 06-26-2013 10:47 PM

That's correct, I stuck with a fairly similar tread pattern. It's an A/T tire but isn't overly aggressive. The tire is a Bridgestone dueler A/T revo 2.

I also read somewhere that the ideal tire size for any tire is 10% less than what the sidewall of the tire says. The author made some good points. I'll check out your link too. I appreciate it.

latitud 06-27-2013 09:00 AM

Just for the record....tire PSI is not relative to the tire size. PSI is a measured value; meaning you have more volume of air, but pressure would remain constant.

h2oman 06-27-2013 10:51 AM

It is totally dependent on the load rating. You don't want to be running 35 psi in 80 psi rated tires.

latitud 06-27-2013 12:32 PM

35 PSI is fine on a tire that has an 80 PSI rating if it is on a RAM 1500. The 80 PSI rating on the sidewall is the MAX inflated pressure to meet the MAX load rating printed in the sidewall. The lower the PSI the lower the allowable weight capacity.


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