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This is a sub-selection from Tire Inflation ?


DannyZ
Gentoo Fanboy
Premium
join:2003-01-29
Erie, PA
reply to MooJohn

Re: Tire Inflation ?

said by MooJohn:

The "use the factory sticker" approach makes the huge assumption that the tire itself doesn't matter. As long as you have a round tire with x psi, you're fine. That's not something I'm willing to blindly concede.

There is no way that the ideal inflation for one tire is the ideal for all on a given vehicle. If you change from a 16 to a 17 inch wheel, is that cushy 29 psi still ideal? If you go from a $50 no-name tire to an expensive Pilot Sport, is 29 still ideal?

My last car had different guidelines for different rim sizes on the placard. Also, If you stick to the ratings of the stock tires, PSI should remain the same. Obviously, if you get a tire with a different load index and/or speed rating, the handling characteristics will be different and might require a PSI adjustment to obtain similar wheel response.
--
Out the 10BaseT, through the modem, down the co-ax, over the fiber, across the backhaul, past the edge router, off the network...nothing but net


TheTechGuru

join:2004-03-25
TEXAS
kudos:2
Reviews:
·HughesNet Satell..
·WesTex Connect

One should note, THE PSI NUMBERS ON THE DOOR STICKER ARE INTENDED FOR THE TIRE SIZE PRINTED ON THE DOOR STICKER! DUH!

Sorry I didn't say that when I said to use the door sticker, I over estimated everyone's intelligence and just assumed everyone was intelligent enough to figure that out.

--
CompTIA Network+ Certified



DannyZ
Gentoo Fanboy
Premium
join:2003-01-29
Erie, PA

said by TheTechGuru:

One should note, THE PSI NUMBERS ON THE DOOR STICKER ARE INTENDED FOR THE TIRE SIZE PRINTED ON THE DOOR STICKER! DUH!

It's also optimized for the tire rating, which isn't usually represented on the placard as far as I've seen. That was mostly my point, I was agreeing that different quality tires may have different sweet spots.
--
Out the 10BaseT, through the modem, down the co-ax, over the fiber, across the backhaul, past the edge router, off the network...nothing but net


MooJohn

join:2005-12-18
Milledgeville, GA
kudos:1
Reviews:
·Windstream
reply to TheTechGuru

said by TheTechGuru:

One should note, THE PSI NUMBERS ON THE DOOR STICKER ARE INTENDED FOR THE TIRE SIZE PRINTED ON THE DOOR STICKER! DUH!

Sorry I didn't say that when I said to use the door sticker, I over estimated everyone's intelligence and just assumed everyone was intelligent enough to figure that out.

Ah ha! So at that point one's personal judgement is perfectly capable of determining the proper inflation pressure whereas with stock tires the same reasoning cannot be trusted. I am able to determine the proper pressure of aftermarket tires but if the car came with the same size from the OEM then I would have zero input.

Makes perfect sense.

Who knew such infallible automotive wisdom was contained on the little silver sticker inside the door jamb?
--
John M - Cranky network guy


Lurch77
Premium
join:2001-11-22
Oconto, WI
kudos:4
reply to TheTechGuru

said by TheTechGuru:

One should note, THE PSI NUMBERS ON THE DOOR STICKER ARE INTENDED FOR THE TIRE SIZE PRINTED ON THE DOOR STICKER! DUH!


You are confusing air volume with air pressure. There are other factors to consider when determinging pressure, but the basic size of the tire has little to do with it.
»blog.tirerack.com/blog/tire-talk···ire-size