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| The Pub For General Automotive Related Talk |
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18-03-2011, 05:05 PM
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#1 | ||
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Regular Member
Join Date: Mar 2011
Location: Adelaide
Posts: 31
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Hey Guys
Can you help ?? Just looking at the tyre pressures for my new car under normal running no load it says 38psi !! Is this right G6ET with 245x35xZR19 Dunlop SP Sport Maxx It may be right just seems a Tad High Loaded is 42psi Many Thanx Keith |
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18-03-2011, 05:16 PM
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#2 | ||
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Regular Member
Join Date: Mar 2007
Location: Brisbane
Posts: 169
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that sounds about right for 19s....
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Current ride Bf xr6 turbo sedan, 6 SP auto, Leather/suede interior |
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18-03-2011, 05:25 PM
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#3 | |||
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Regular Member
Join Date: Mar 2011
Location: Adelaide
Posts: 31
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Quote:
 Used to having bigger rubber than these are....lol |
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18-03-2011, 05:27 PM
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#4 | ||
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Regular Member
Join Date: Mar 2011
Location: Adelaide
Posts: 31
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Hate to think how much they are a shot........
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18-03-2011, 05:30 PM
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#5 | |||
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Clutch Cable Killer
Join Date: Dec 2005
Location: Bald Hills, North Brisbane
Posts: 2,271
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Quote:
I thought the lower profile tyre, the more pressure you want? Also, just letting you know AFF does have a wheel and tyre technical area. here http://www.fordforums.com.au/forumdisplay.php?f=103
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Matthew 1997 Manual EL XR6 in Heritage Green Extractors and 2.5" exhaust- - 16" Tickford Wheels - Full EL XR bodykit - COYO73 Plates HID projectors, lowered on King SL and Koni Shocks. Daily - 2002 AUIII SR Stock as she comes. Coyote's EL XR6 ^^Click Me^^ 15.132@ 91.51 MPH Photos by Me  https://www.facebook.com/PhotosByMatthewWylie
Last edited by Coyote mk3; 18-03-2011 at 05:39 PM. |
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18-03-2011, 05:32 PM
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#6 | ||
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Regular Member
Join Date: Apr 2010
Location: Perth
Posts: 115
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The pressure required is 38 to 40 psi for those tyres.
Remember force is pressure over area. This relates to the area inside, the air cavity of the tyre. Balloon tyres require much less pressure due to the surface area inside the tyre for correct inflation. If we reduce the area for air inside the tyre you have to increase the pressure to maintain the correct footprint for that tyre. |
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18-03-2011, 06:12 PM
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#7 | ||
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Regular Member
Join Date: Mar 2011
Location: Adelaide
Posts: 31
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Thanx for your info guys !
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18-03-2011, 09:00 PM
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#8 | ||
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Browsing here and there..
Join Date: Aug 2009
Location: Melbourne, Victoria
Posts: 2,075
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I run 243/35/19 tyres on my car with 42psi. Max on tyre says 48.
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18-03-2011, 09:44 PM
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#9 | ||||
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Can't go around corners
Join Date: Feb 2007
Location: Radelaide
Posts: 639
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Quote:
and 40 psi is a pretty good pressure for those tyres
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Quote from Jeremy Clarkson in the Top Gear Vietnam special: Quote:
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18-03-2011, 11:42 PM
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#10 | ||
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Australia
Join Date: Mar 2010
Location: behind a keyboard
Posts: 1,290
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I had 40 psi in mine. After the last visit to the service department, they dropped themselve to 32psi
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18-03-2011, 11:45 PM
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#11 | ||
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[BU66OS]
Join Date: Jun 2009
Location: Central Coast NSW
Posts: 1,719
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Yep I have my 19's at 39psi, seems to be wearing even. I had them at 43 when I first got them, felt really smooth on a good road but the middle was wearing a bit fast.
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FG XR6 Turbo Nitro BA XR8 Manual
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19-03-2011, 10:42 AM
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#12 | ||
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Performance moderator
 
Join Date: Feb 2005
Location: St Clair..N.S.W
Posts: 14,875
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42 Lb on my 17's .. A few quick sprints and the pressure goes up ...
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Real cars are not driven by front wheels,real cars lift them!!... BABYS ARE BOTTLE FED, REAL MEN GET BLOWN. Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic! Dart 330ci block turbo black pearl EBXR8 482 rwkw.. Daily driver GTE FG.. Projects http://www.fordforums.com.au/showthread.php?t=107711 http://www.fordforums.com.au/showthr...8+turbo&page=4 |
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19-03-2011, 10:47 AM
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#13 | ||
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Racing improves the breed
Join Date: Apr 2006
Location: SE Melbourne
Posts: 3,982
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40 pounds all round for me, I have always had nice and even wear
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1970 Mini Cooper S Historic Group Nc Touring car 1964 Mini Cooper S Historic Group Nb Touring car 2024 Subaru Outback Touring XT Victorian Hill Climb Championship |
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19-03-2011, 11:02 AM
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#14 | |||
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Moderator
  
Join Date: Jun 2006
Location: Foothills of the Macedon Ranges
Posts: 18,606
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Quote:
I run 38 psi front and rear when cold. Have continually found the tyres wear evenly across the tread at that pressure. |
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19-03-2011, 02:57 PM
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#15 | ||
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2008 BF Futura
Join Date: Sep 2005
Location: Adelaide, S.A.
Posts: 595
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Factory and dealer tyre pressure are for a comfort ride, not for enconomy or tyre life.. just bump them up.
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2008 BF Falcon Futura 2009 BF Falcon Wagon Dedicated LPG Previous Cars: 2003 BA Falcon Wagon Dedicated LPG 1999 Ford Fairlane Ghia XF Fairmont Ghia Escort MK2 RS2000 Replica |
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Tyre Pressures !
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