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redhorse
03-10-2006, 08:18 PM
Just bought a new set of tires. On the sidewall the max psi is 51 psi. What is the opinion of what pressure to run? They were set at 45 and the car felt like it was bouncing down the road, so I dropped them down to 42 and they are a lot more friendly.

Hotrod
03-10-2006, 08:34 PM
I usually run aroud 35 in all my vehicles. We got a 96 explorer, 01 ranger, and the 93 mustang and they have roughly 33-35 pounds in each tire.

QWKSNKE
03-10-2006, 09:36 PM
I run whatever is recommended on the tire label of the vehicle which on my car is 32 front 28 rear. However with the 555 RII's on the rear I usually run no more than 25psi so that the centers do not wear out

redhorse
03-11-2006, 04:51 AM
I run whatever is recommended on the tire label of the vehicle which on my car is 32 front 28 rear. However with the 555 RII's on the rear I usually run no more than 25psi so that the centers do not wear out

But on the side wall of the tire it says and if I am not mistaken 44 psi on the Nittos. So how much do you use to keep the car from bouncing all over the road? I have run 30 - 32 all the way around and the tires after 30,000 miles begin to wear in the middle and not on the edge. Please forgive my pea brain but I would like some insight on why such a high inflation is printed on the side of the tire. And if I am under inflating are the tires wearing out to quickly.

Craig K.
03-11-2006, 06:22 AM
you have to remember that the PSI in a tire is not the only wear factor of how a tire will preform (weight, suspension, wheel, etc...) Tires are made for many different applications, thus, the tire manufactures are required to print the maximum rating the tire can hold to meet the DOT rating (I believe).

I generally run 35-37 (cold) in my mustang, when it is summer time i will lower it by about 2-3 PSI.
In SUV I will run about 32-34.

QWKSNKE
03-11-2006, 07:09 AM
But on the side wall of the tire it says and if I am not mistaken 44 psi on the Nittos. So how much do you use to keep the car from bouncing all over the road? I have run 30 - 32 all the way around and the tires after 30,000 miles begin to wear in the middle and not on the edge. Please forgive my pea brain but I would like some insight on why such a high inflation is printed on the side of the tire. And if I am under inflating are the tires wearing out to quickly.

I never have really had the problem with the tire 'bouncing' on the road. The higher the pressure the more likely the center will wear especially so if you do a lot of hwy driving. Only time I would jack up the tire pressure to 40 psi or so is if i was going to do some autocross racing.

redhorse
03-11-2006, 08:38 AM
OK let me change my termanology. Instead of bouncing, lets say the steering seems very sensitive and there seems to be a roll factor, the car just seems unstable. That is when the psi is high.

NightHawk756
03-11-2006, 11:50 AM
I always run my tires around 5 psi less than what the max psi is. And I've never felt a problem with them. I feel more of a problem the lower I run the psi. On my patrol car, the max psi is 44. Anything less than 40 rides like crap and gets the "roll feeling" you describe. And it even looks like I have flats. :shrug:

redhorse
03-11-2006, 07:28 PM
I may just be wanting the perfect ride.

AngelEyes
03-11-2006, 09:09 PM
if i was going to do some autocross racing.
bring it! Cupcake!

lukem80
03-14-2006, 11:52 AM
there are specs on what you should run usually on a sticker in your door jam, but DO I REALLY TRUST FORD?

EZ SPEED
03-14-2006, 12:12 PM
I usually run 28-32 psi in my tires. Car or truck..it doesnt matter

Towing or hauling I raise the pressure, but for normal everyday use 28-32psi works for me ;)

A guy that has owned a tire store for the last 20-30 years recommended these pressures based on his experiance. :nice:

TheJeanyus
03-14-2006, 01:07 PM
I run 28-30 psi in the fronts (Kuhmo Ecsta MX's) and 25 psi in the rears (Nitto 555R's).