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Old 26 January 2006, 08:43 AM
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AER-SCOOBY
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Default Tyre Pressures

Hi guys does any one know what the tyre pressure should be for the following size tyres?
215/45/17

Thanks guys.
Old 27 January 2006, 10:11 AM
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TonyBurns
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On a new age STi they should be 2.3bar front, 1.9bar rear (34/29)

Tony
Old 27 January 2006, 11:05 AM
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babber
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Cool

Originally Posted by AER-SCOOBY
Hi guys does any one know what the tyre pressure should be for the following size tyres?
215/45/17

Thanks guys.
Found 34 front and 30 rear works best on my RB5.

Hope this helps, Phill
Old 27 January 2006, 12:16 PM
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novarally
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Quick question what pressures should I use on a 1994 wrx Classic on 18 inch wheels 215 x 35 zr18
Thanks in advance
Old 27 January 2006, 01:25 PM
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messiah
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I spend most of my time on bumpy back roads - anything higher that 31 all round tends to loosen my teeth...

just curious - any reason (apart from engine weight) that the front / rear pressures are different? And what effects will having all 4 the same have opposed to this?
Old 29 January 2006, 10:45 PM
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M1BJR
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Yes. Cornering hard places more force on the front for obvious reasons, as does hard braking. Higher pressures will help stiffen the sidewalls and maintain the size of the contact patch with the road.
Excess pressure will cause the tyre to bulge in the mid tread, causing premature wear in the middle. Low pressure with wear the edges more noticably.....

Steve
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