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7 Series - F01 (2009 - current)
The new re-designed 7 series leads off the BMW Fxx chassis code!

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  #1  
Old 02-25-2010, 07:04 AM
ameritrades ameritrades is offline
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What tire pressure are you running on the OEM 19's w/ Run Flats?

Don't have the door jam here to check.
Thanks in advance
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  #2  
Old 02-25-2010, 04:20 PM
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mdernst mdernst is offline
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Quote:
Originally Posted by ameritrades View Post
Don't have the door jam here to check.
Thanks in advance
32 PSI all around (as per the door jamb).
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  #3  
Old 02-27-2010, 08:50 AM
SAMLAMBO SAMLAMBO is offline
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I'm running on Pirelli P Zeros run flats 275/40/19 and 245/45/19(same as 750 specs). Not to sure in PSI but the machine reads 240 which the techs pumped on all 4 tyres.
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  #4  
Old 02-27-2010, 03:10 PM
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mdernst mdernst is offline
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Originally Posted by SAMLAMBO View Post
I'm running on Pirelli P Zeros run flats 275/40/19 and 245/45/19(same as 750 specs). Not to sure in PSI but the machine reads 240 which the techs pumped on all 4 tyres.
Most likely that is 240 kPa which equals 34.8 PSI.

Mike
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  #5  
Old 02-27-2010, 06:26 PM
SAMLAMBO SAMLAMBO is offline
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Originally Posted by mdernst View Post
Most likely that is 240 kPa which equals 34.8 PSI.

Mike
Is that to much?
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  #6  
Old 02-27-2010, 07:09 PM
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mdernst mdernst is offline
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Is that to much?
Not necessarily. I think it calls for higher pressures for higher loads and for sustained high speeds.

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  #7  
Old 02-27-2010, 10:53 PM
SAMLAMBO SAMLAMBO is offline
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Not necessarily. I think it calls for higher pressures for higher loads and for sustained high speeds.

Mike
Ok thanks. Does lower pressures mean more comfort?
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  #8  
Old 02-28-2010, 01:30 PM
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Wilassasin Wilassasin is offline
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How are those runflats, are they loud because runflats generally run louder then regular performance tires..My vette has runflats but thats only because there is no spare, otherwise I would have swapped them out.
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  #9  
Old 03-01-2010, 05:30 AM
SAMLAMBO SAMLAMBO is offline
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How are those runflats, are they loud because runflats generally run louder then regular performance tires..My vette has runflats but thats only because there is no spare, otherwise I would have swapped them out.
Not at all. Very smooth and quiet and I'm on 19inch rims, using Pirelli P Zeros. Although I have to admit my previous Jag XJ was quiter but it was not on runflats. However the Jag XJ's have always been very quiet cars. Just my opinion.
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