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Non-runflat Tire Pressures--What are you running?
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| 09-14-2010, 08:06 PM | #1 |
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First Lieutenant
 
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Non-runflat Tire Pressures--What are you running?
I'm running non-runflat performance summers on my 335i coupe now and feel like my turn-in has suffered (almost a little sloppy now).
The tire shop set me up with 32fronts 35 rears and I was wondering what you guys are running as I'm unsure what to run them at? Tires are 265/30/19rears and 235/35/19 fronts |
| 09-14-2010, 10:44 PM | #3 |
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will this also apply to 235/40/18--265/35/18 ?
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| 09-15-2010, 07:22 AM | #5 |
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I am running RFT 225/35/19 Front and 255/30/19 rear
My rear tires have worn inside due to the 2 1/2 degree chamber on my car during a extended road trip. I am told wear is normal on my Z4 due to retractable roof in trunk and some luggage. Both the tire shop and BMW recommends I run the rear tire 10% above specified air pressure (as listed in door well). I am doing this. Also, I notice that I loose a few PSI every week, so every Monday morning I check and adjust my air pressure. I keep a good air compressor (with gauge mounted on the compressor in my garage).
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| 09-18-2010, 03:33 PM | #7 |
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First Lieutenant
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Just read a tire rack article. Apparently unless you're going to be driving hard (autocross/rally etc) it's not worth it to over-inflate due to poor wear/easier for tire to be damaged on potholes etc.
Guess I'll be trying out the reccom pressure above to see how it does  |
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| 09-18-2010, 04:09 PM | #8 | |
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Quote:
Later when I was back home my BMW service manager recommended 10% above specified pressure to take advantage of the good tread. I check tire pressure every week (Monday mornings at fairly same temperature in my garage), I note there is some pressure loss I have to add 3 to 5 psi every week to maintain required tire pressure. I never had to do this before RFT, I will do the checks as long as I run the RFT.
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Life will take us to some interesting places, fortunately The ///M3 will too with a many of us know this very well, now my C6.3 AMG with 487 HP does it too ---> Click here for some good stuff I found |
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