anybody have personal experience with the federals?
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Originally posted by andybob View PostWhen automakers put those recommendations on the door, they take into the weight of the car, tire size, and probably a bunch of other crazy stuff. Those pressures on the inside of the door are for stock wheels and tires. Engineers determine them so you could a good ride with even tire wear, gas mileage, etc...
Now, with that said, run whatever you're comfortable with. I'm assuming you have some decent fitment and running a smidge or so of negative camber, which is going to wear the tire differently than a stock suspension/tire combo as it is, so it doesn't really hurt to go above those number.
I run at 45 with the hope if I hit an astray pothole or something the wheels won't be damaged. That's just me though. Some people run a higher PSI if they are running a lot of stretch, it helps keep the beads sealed.
Reading through that I kinda rambled, but I hope that helps you out.
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