Correct tire pressure for 225/50/16?
03-20-2004, 07:44 PM
#1
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Correct tire pressure for 225/50/16?
I was wondering... what's the correct pressure for 225/50/16 tires? Is it still the stock tires' pressure, or do I need to account for the plus sizing? It just occurred to me that I wasn't sure about this. Thanks guys!
03-21-2004, 09:18 AM
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I run 36 in the front & 30 in the rear. But as long as you don't go LESS than 32/29 f/r than you should be okay. (I view the tire inflation specs in the same light as posted speed limits - as suggestions. Experiment & go with what works for you.)
03-21-2004, 05:56 PM
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Thanks. Any particular reason why you like to run those pressures? I'm just curious is all 
Any other suggestions from others as well?
Any other suggestions from others as well?
04-06-2004, 05:16 PM
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You should try to duplicate the psi ratio between the front and back as given on one of the I.D. plates on your car if you decide to stray from the stock psi. From what I understand, I could be wrong, tire pressure is very important as far as preserving the health of your tranny goes. Subaru says to keep the circumfrence of all the tires within a specified amount of eachother. Which means all tires should be the same make and model and the same age. The pressures are given to balance the size of the tires with consideration given to the weight of the engine in front, etc.....
Someone feel free to correct me.
Someone feel free to correct me.
04-06-2004, 08:53 PM
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I would think it would be the same as factory specs no matter what size tire since its pounds per square inch. I never thought of the difference in tire pressure (front-rear) causing a problem with the diff but it makes sence. In light of that I will be inflating to factory spec (ratio) in front and rear since Im not driving a rwd car anymore. Ive also been under the impression (like Esoterikwrx) that experimenting with tire pressures is ok as long as you dont underinflate too much.
Last edited by MO REX; 04-06-2004 at 09:03 PM.
04-07-2004, 01:30 PM
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The differences in front to back pressures only really come into play when the pressure is greater than 10 psi. If you stay above the recommended you will be fine the tires diameter does not change that much above the recommended.
I use to run 225/50/16 Sumo HTR+s and used 38/32 for the pressures. They had a soft sidewall and tend to roll over a lot. One thing about running 225 on stock rims don't go too high or you will area the center out. I know you are aware that high pressures will do this but the wide 225 on the narrow stock wheels will magnify the issue.
Rob
I use to run 225/50/16 Sumo HTR+s and used 38/32 for the pressures. They had a soft sidewall and tend to roll over a lot. One thing about running 225 on stock rims don't go too high or you will area the center out. I know you are aware that high pressures will do this but the wide 225 on the narrow stock wheels will magnify the issue.
Rob
04-08-2004, 06:46 PM
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mr. m -- not rubbing issues whatsoever
TitanWRX -- please don't try to hijack my thread
Everybody else -- thank you very much for your input
TitanWRX -- please don't try to hijack my thread
Everybody else -- thank you very much for your input
04-10-2004, 10:57 PM
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I see, but that takes some time to notice right? Also, I'm running the RE750's, and I've heard that the carbon compound layering technology on the upper model Potenza's like this one make it difficult to notice minor uneven treadwear. I know I sound dorky and picky when I say this, but I'd feel a lot better with a solid psi or small range of psi
Nevertheless, thank you very much for your input! Keep the recommendations coming!
Nevertheless, thank you very much for your input! Keep the recommendations coming!