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YOUR RESEARCHTyre Pressure ?
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Check tyre pressure whilst i was out
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I popped out to get a sarnie, checked my tyre pressure whilst I was out after reading this since the temp is up a bit today.
Leading evidence: 'Check tyre pressure whilst i was out' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust tyre pressure' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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I'm running 235/40/18 on the front and 285/30/18 on the rear, all P-Zero Rosso's.
Run 32psi front (225/40/18 ) and 40psi rear (285/30/18 )
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I run 32psi front (225/40/18 ) and 40psi rear (285/30/18 ).
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I ran lower pressures [3psi] when I first had the car but went back to
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Generally I tend to prefer to run rather softer than the factory recommendations (and always have done on all my 911s) So for the 996 i use around 32 front 38 rear.
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Generally I tend to prefer to run rather softer than the factory recommendations (and always have done on all my 911s) So for the 996 i use around 32 front 38 rear.
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What tyre presures are you guys running....? According to the owners manual for 18" tyres it states 3.0 bar (44 psi)
I'm running 235/40/18 on the front and 285/30/18 on the rear, all P-Zero Rosso's.
Generally I tend to prefer to run rather softer than the factory recommendations (and always have done on all my 911s) So for the 996 i use around 32 front 38 rear. It just improves the everyday ride comfort so much particularly with the current pot hole epidemic. I also notice no deterioration in grip at everyday speeds and stragely more even (accross the tread) tyre wear.. (If heading up the motorway or to a track day then I put them back to standard)
Bear in mind that the 36/44 recommendation from Porsche is at 20 deg C. Something I have found since fitting a TPMS is that if you set them at 36/44 with the ambient temperature at around 10C then they can go up 2-3 psi when air in the tyre reaches 20C.
+1 on that. I have done a theoretical model and since the TPMS I have been looking at actual readings and soon I will be posting a report and comparison. but if temp is low then you need to remove 2-3 PSI from the target one as said above
Theo
+1
I like my car so much better with 32/38... the ride comfort is much improved, but more importantly the car is more stable over bumps and feels much better at the front as a result.
One thing I have learned from tracking 5 different types of tyres over the last couple of years is that there is no one "correct" pressure.
What I do now is use the optimum hot track pressure (determined by tyre pyrometer readings) as my cold road pressure. For most tyres this works out as 30-33F and 33-36R at 20 degrees. The differential between front & rear seems to be fairly consistent at 3psi.
PS/2's and Toyo R888's seem to like a little more pressure than Cup's and Corsa's.
I run 32psi front (225/40/18 ) and 40psi rear (285/30/18 ). I've done this for a more compliant ride; using the manufacturers guide (36/44) just results in a rock hard ride for me.
~ Maxie
I popped out to get a sarnie, checked my tyre pressure whilst I was out after reading this since the temp is up a bit today. Adjusted it fine.. ..jumped back in the car and the radio/cd has stopped working!! Sat Nav still talks to me and it thinks it's playing. But no music.
So - be careful when you adjust your tyre pressure!
I assume it's just a fuse. I'll check the fusebox diagram after I've finished said sarnie.
Of course the tyres will also have an effect on the comfort, so different
makes/compounds would suit different pressures.
I ran lower pressures [3psi] when I first had the car but went back to
the recommended once I got used to the handling.
The geometry set up will make a really noticable difference to the way the car responds.
TB
Ahh, but at what temperature are you setting them? It you are setting them at, say, 10C then they could end up at around 36/44 by the time you have done about 5-6 miles of normal motoring.
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