The Random E46/ZHP Question Thread

In reference to the winter tires posted earlier- tires are everything, especially in adverse conditions. Don't use those...they're done.


I was very surprised to see how high the recommended psi was in my door jam when I first went to check my pressures. I'm glad to know those pressures are for fully loaded, as I'll now be running something lower. I was thinking the higher pressure in the rear was because of how wide the tires are compared to the front. This is my first time running staggered low-pro's, so I'm genuinely curious of exactly why we're supposed to run more in the rear. Is it because those are the acceleration tires? I have a feeling the width is the difference.

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Originally Posted by UWISHU1

In reference to the winter tires posted earlier- tires are everything, especially in adverse conditions. Don't use those...they're done.


I was very surprised to see how high the recommended psi was in my door jam when I first went to check my pressures. I'm glad to know those pressures are for fully loaded, as I'll now be running something lower. I was thinking the higher pressure in the rear was because of how wide the tires are compared to the front. This is my first time running staggered low-pro's, so I'm genuinely curious of exactly why we're supposed to run more in the rear. Is it because those are the acceleration tires? I have a feeling the width is the difference.

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It varies with size and construction of the tire sidewalls as well. Different tires of the same size can have different load and max pressure ratings.

http://www.tirerack.com/tires/tirete....jsp?techid=21

http://www.tirerack.com/tires/tirete...jsp?techid=196


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Originally Posted by mynamenumber

... almost seems worth a "post your door jam" thread here... :pringles:

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I'm supposed to have a slow day tomorrow with work. I'll see how bored I truly get.

It doesn't make sense why they would post only the max pressures on the door jamb. It would have made more sense to put the standard inflation numbers so people can quickly check what to set pressures to under normal circumstances.

My sticker does not say that 39/46 is max inflation pressure and is very misleading. I don't remember my owner's manual telling me that was max either, but I'll have to check when I go home.

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Originally Posted by az3579

It doesn't make sense why they would post only the max pressures on the door jamb. It would have made more sense to put the standard inflation numbers so people can quickly check what to set pressures to under normal circumstances.

My sticker does not say that 39/46 is max inflation pressure and is very misleading. I don't remember my owner's manual telling me that was max either, but I'll have to check when I go home.

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I agree it doesn't make sense. Maybe I'm reading it wrong and I'll have to check my car's physical owner's manual, but this is the tire inflation page from a 2006 coupe, with the ZHP tire sizes highlighted:

http://i.imgur.com/83bpiNx.png

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Originally Posted by BMWCurves

I agree it doesn't make sense. Maybe I'm reading it wrong and I'll have to check my car's physical owner's manual, but this is the tire inflation page from a 2006 coupe, with the ZHP tire sizes highlighted:

http://i.imgur.com/83bpiNx.png

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The rear is 1 psi different but almost same as what my car says


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Originally Posted by derbo

There are the older ones. I believe in 05 they changed the stickers.

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Oh man, you just burst my bubble. I was hoping i had a special not so special car.

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Originally Posted by NYRhockey

Oh man, you just burst my bubble. I was hoping i had a special not so special car.

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Yours maybe special cause it's French? I'll have to check mine


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Originally Posted by derbo

Yours maybe special cause it's French? I'll have to check mine


-Sent from Mobile

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It was probably imported from Canada. French is very prevalent in parts of Canada.

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Canada didn't have ZHPs?