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Air Pressure in Tires
Posted on 9/3/12 at 7:15 am
Posted on 9/3/12 at 7:15 am
Growing up I seem to remember 32 being the optimal # but now tires have a max of 44 psi. I still tend to keep it closer to 32 than 44- usually around 36.
I've been wondering about this for a long time. Even asked a guy that sells them and seemed to get a puzzled look- maybe cause it was such a dumb question.
Regardless, I'm still curious what the best pressure is to maintain in them. I'm talking about car/truck with no load.
I've been wondering about this for a long time. Even asked a guy that sells them and seemed to get a puzzled look- maybe cause it was such a dumb question.
Regardless, I'm still curious what the best pressure is to maintain in them. I'm talking about car/truck with no load.
10
Posted on 9/3/12 at 7:45 am to Geauxtiga
Inside of the driver's door should tell you the recommended pressure reading
Posted on 9/3/12 at 7:56 am to Da Hammer
quote:
Inside of the driver's door should tell you the recommended pressure reading
If you have factory tires and rims, then this is correct.
I keep my tires around 36 psi while cold.
Posted on 9/3/12 at 8:00 am to Geauxtiga
Depends on the truck, tire, and what you're doing.
10 ply tires have a max pressure of 80 or 90 psi, while 6 ply is usually 35.
For a rock crawler, you want 2 or 3 psi, for a street rig, 90% of the max is what I use. For hauling I use the max.
10 ply tires have a max pressure of 80 or 90 psi, while 6 ply is usually 35.
For a rock crawler, you want 2 or 3 psi, for a street rig, 90% of the max is what I use. For hauling I use the max.
Posted on 9/3/12 at 8:38 am to Geauxtiga
FWIW, I'm a Jeep owner and run larger aftermarket tires and I can tell you all tires run differently. There is no one-size-fits-all pressure. However, you can chalk your tires to find the optimum pressure for weight, performance and tread wear. Google it. There's volumes of info on chalking your tires and even a few youtube videos.
Posted on 9/3/12 at 8:47 am to RotorheadTiger
Door jam for stock.
Chalk for aftermarket is how I do it.
Chalk for aftermarket is how I do it.
Posted on 9/3/12 at 9:34 am to Geauxtiga
I keep mine at 40
Posted on 9/3/12 at 10:08 am to Geauxtiga
The max pressure is for when the tire is under its max load (it says so right on the tire usually). You wouldn't want to have that much pressure under normal conditions. Over inflating your tires is actually really dangerous. You'll get no grip at all since so little of the tire will be touching the road.
Posted on 9/3/12 at 10:12 am to Geauxtiga
I think mine suggest 44 or 45. Usually keep them high 30s. Driving through fields with stobs sticking up and shite I hope it will give my tires a little more give
Posted on 9/3/12 at 10:34 am to Geauxtiga
Thanks for all the feedback guys. 
Posted on 9/3/12 at 10:34 am to MikeBRLA
quote:
You'll get no grip at all since so little of the tire will be touching the road.
Only the middle of the tire is supposed to be touching the road. Otherwise your gas mileage will drop and you'll wear out tires quicker
Posted on 9/3/12 at 10:35 am to Geauxtiga
I run 45 in mine
Posted on 9/3/12 at 10:45 am to Geauxtiga
Whatever the side wall of the tire suggests as max tire pressure, is what I keep mine at. Especially in SUVs and trucks, it keeps the vehicle from rolling over if you are in a side slip situation.
Posted on 9/3/12 at 12:15 pm to DownshiftAndFloorIt
quote:
10 ply tires have a max pressure of 80 or 90 psi,
This is what I run.
Posted on 9/3/12 at 12:18 pm to Geauxtiga
this thread convinced me to put some air in my tires.
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