tire pressure ?? - Ranger-Forums - The Ultimate Ford Ranger Resource


Wheels & Tires Semi-Tech General discussion of wheels and tires for the Ford Ranger.
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Old 05-19-2007
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tire pressure ??

i just got a new set of 31x10.5 procomp at's. i was wondering what the best pressure to run is. on the tire it says 50, but the shop only put 35 in them. would 44psi be a good pressure to make the tires last.
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Old 05-19-2007
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35psi is a perfect pressure. Thats what alot of us run on our aftermarket tires, and atleast personally its produed the best wear, gas mileage, and grip combo
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Old 05-19-2007
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here we go again... read this...


Quote:
tires are general there is no read out on the tire that says use this PSI for a ranger/jeep/f-250. the MAX psi labeled on a tire is just that MAX.. you shouldnt exceed that it doesnt mean fill to that point and your good to go..

the PSI on the door/fuel door depending is a # derived by a calculation from the tires that come stock on the vehical what PSI SHOULD be run in the truck for THOSE tires...

see tires have something labeled on them that reads like this... "tire can support 2500lb at 55 PSI MAX".. now say you drive a reg cab 4cyl ranger which weights right around that amount. that means that 1 tire can support the WHOLE vehical weight at 55PSI... there is a calculation, i cant remeber it for the life of me but taking effect the vehical weight with how much the tire can hold at a curtian psi you will get what psi the vehical should be running. i found it once worked out my truck with my old 265 and came out with right around 32psi...

so your statement of running what the tires says well its true and false, the tires do tell you what to do, but you have to do some figuring out.. if the guy is still running stock or a tire with a similar to stock load rating then he should run what is said on the doorjam/fuel door
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Old 05-19-2007
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Im running 26 at the moment and its a smooth with alot of grip but I hooked up 4klbs boat and I got worried.
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Old 05-19-2007
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I think I have about 40psi in my tires right now.
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Old 05-19-2007
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I run 31 lbs in the front and 30 lbs in the rear.
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Old 05-19-2007
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i decided to run 40psi. 35 made them look they were flat.
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  #8  
Old 05-19-2007
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31psi was about perfect for mine. Just enough to get the tread pattern flush to the pavement. I let out an extra psi in the rear for traction and the lack of weight in the rear.
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Old 05-19-2007
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same here^^

mine are 33 in the front and 29 in the rear...
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Old 05-19-2007
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35 all the way around here. 32 in the winter -Mike-
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Old 05-19-2007
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Quote:
Originally Posted by Trigger01
I think I have about 40psi in my tires right now.
HOLY small tires high PSI and harsh ride batman!!!
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Old 05-20-2007
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I was running 35. I noticed the middle wearing more than the rest of the tire. So I went down to 30.
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  #13  
Old 05-20-2007
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i think im runnin about 35-40 i cant rember though
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Old 05-20-2007
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With the heat going up I went down to 29 up front and 28 in the back. Tread was nice and even with the flat level concrete after it warmed up a touch.
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