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Old 09-25-2014, 02:19 PM   #1 (permalink)
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How far over MFR recommended for pressure is ok w/o destroying tires?

I obviously want high MPG 's. I want to pump up my tires a bit but not ruin them. What is considered a safe PSI increase without making the tires bald in the center as a result and not setting off the tire pressure monitoring system.

Factory specs: 32 PSI

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Old 09-25-2014, 02:28 PM   #2 (permalink)
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Maximum sidewall pressure. It will have this rating on the tire itself.
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Old 09-25-2014, 02:28 PM   #3 (permalink)
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If I am not mistaken, I believe the folks around here recommend to inflate to the maximum recommended number found on the sidewall of the tires on your vehicle, or there abouts. AFAIK no one recommends overinflation as this is actually dangerous and could cause injury or even death should a tire fail. Raise pressure yes but don't exceed max pressure on your sidewalls.
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Old 09-25-2014, 02:30 PM   #4 (permalink)
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As for what pressure to run. There definitely is a diminishing effect as you raise it higher. Darin did some testing a while back that illustrates this very well.

http://ecomodder.com/forum/showthrea...tire-2721.html
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Old 09-25-2014, 02:33 PM   #5 (permalink)
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Crikes it says 44 PSI. Seems like a lot? But I'll try half that amount, split the difference..... Thx
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Old 09-25-2014, 02:44 PM   #6 (permalink)
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I've read a few times that tires are burst tested to ~200 psi. Not that you want to drive around at that because bumps might be an issue, but they can handle a lot more than we give them credit for. I know at least a few people who have ran around at 70 psi in their tires...
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Old 09-25-2014, 02:54 PM   #7 (permalink)
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I've been running 44 in mine since I got it. Feels great.
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Old 09-25-2014, 02:56 PM   #8 (permalink)
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Alright... I'm going all out. With 25k on the tires I can't lose much... So it's 44 PSI. I just wonder about the tire pressure monitoring system going off? Thoughts?
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Old 09-25-2014, 02:59 PM   #9 (permalink)
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I know at least a few people who have ran around at 70 psi in their tires...
YIKES!!!
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Old 09-25-2014, 03:45 PM   #10 (permalink)
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Quote:
Originally Posted by FordFiestaS View Post
Alright... I'm going all out. With 25k on the tires I can't lose much... So it's 44 PSI. I just wonder about the tire pressure monitoring system going off? Thoughts?
I've reprogrammed a couple 1500 silverados that people put LT tires on so that it treats 50psi as the correct pressure. If it's possible on your car I would assume you will have to have a dealership set up the module watching the monitors with the pressure you want. If they can, I'm guessing they'll probably want to charge you an hour labor to do it. Alternatively, you could set your tires to 44, and let a pound out a day until your tire light goes out.

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