factory recomended air pressure
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#11
Originally Posted by blue99ranger
yea, i never fill up to the max. usually 5-10psi under.
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
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
#12
what you should do is this:
1. get the road or your drive way wet in a spot
2. drive through it until you have driven onto dry pavement
3. get out and check to see how much tread actually touched the ground
4. adjust air pressure until all your tread touches the ground, you may have to repeat driving through the water in a different direction to make sure that all your tread is touching....
i am running 35 psi in the front and about 28 in the rear to get all of my tread to hit the ground....
1. get the road or your drive way wet in a spot
2. drive through it until you have driven onto dry pavement
3. get out and check to see how much tread actually touched the ground
4. adjust air pressure until all your tread touches the ground, you may have to repeat driving through the water in a different direction to make sure that all your tread is touching....
i am running 35 psi in the front and about 28 in the rear to get all of my tread to hit the ground....
#13
Originally Posted by lifted97ranger
what you should do is this:
1. get the road or your drive way wet in a spot
2. drive through it until you have driven onto dry pavement
3. get out and check to see how much tread actually touched the ground
4. adjust air pressure until all your tread touches the ground, you may have to repeat driving through the water in a different direction to make sure that all your tread is touching....
i am running 35 psi in the front and about 28 in the rear to get all of my tread to hit the ground....
1. get the road or your drive way wet in a spot
2. drive through it until you have driven onto dry pavement
3. get out and check to see how much tread actually touched the ground
4. adjust air pressure until all your tread touches the ground, you may have to repeat driving through the water in a different direction to make sure that all your tread is touching....
i am running 35 psi in the front and about 28 in the rear to get all of my tread to hit the ground....
#15
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