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Posted: Sun Dec 23, 2012 1:27 pm |
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Joined: Nov 16, 2012 Posts: 155
Trade Rating: 0
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what tire pressure should i be using i have low profile tyres 205/40/r17
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Posted: Sun Dec 23, 2012 3:33 pm |
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Joined: Feb 21, 2012 Posts: 2277
Trade Rating: +16
Location: west midlands
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i use 33
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Posted: Sun Dec 23, 2012 4:06 pm |
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Joined: Aug 11, 2010 Posts: 56
Trade Rating: 0
Location: fife
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have a play using the standard pressure, higher pressures give an increase in handling until a pint when the tyre's contact patch is reduced
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| 206 1.9D, 210,000 now dead following failed submarine experiment (flood) | |
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Posted: Sun Dec 23, 2012 5:42 pm |
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Joined: Jul 22, 2012 Posts: 64
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Location: CAERNARFON
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Check with the tyre manufacturer for his recommendations
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Posted: Mon Dec 24, 2012 3:37 am |
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Joined: Nov 28, 2011 Posts: 411
Trade Rating: +1
Location: sunny stoke
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all 206,s are 33
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Posted: Mon Dec 24, 2012 3:59 am |
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Joined: Feb 21, 2012 Posts: 2277
Trade Rating: +16
Location: west midlands
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HDI90 wrote: |
all 206,s are 33 |
Regardless of wheel size? If you have the standard wheel that come woth the car it says on the car in the door part where the paint code is
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Posted: Mon Dec 24, 2012 6:24 am |
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Joined: Oct 05, 2011 Posts: 672
Trade Rating: +2
Location: Notts
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it will say on the wall of the tyre 
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Posted: Mon Dec 24, 2012 7:06 am |
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Joined: Feb 07, 2010 Posts: 3948
Trade Rating: +7
Location: A Track near you ;)
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novatron1_2 wrote: |
have a play using the standard pressure, higher pressures give an increase in handling until a pint when the tyre's contact patch is reduced |
Does it?? Must have been doing it wrong all those times with lower pressure to increase in grip/handling
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| Renault Clio III RS - Race Car 
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Former Poverty 206 XS 1.6Turbo Owner  | |
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Posted: Mon Dec 24, 2012 7:13 am |
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Joined: Apr 19, 2012 Posts: 529
Trade Rating: 0
Location: darlington
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32-34all day long.
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Posted: Mon Dec 24, 2012 8:16 am |
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Joined: Feb 07, 2010 Posts: 3948
Trade Rating: +7
Location: A Track near you ;)
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23 fronts 25 rears 
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Renault Trafic - Daily & Tow Van
Former Poverty 206 XS 1.6Turbo Owner  | |
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Posted: Mon Dec 24, 2012 9:52 am |
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Joined: Feb 07, 2010 Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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72 psi
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Tue Dec 25, 2012 5:35 am |
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Joined: Apr 19, 2012 Posts: 529
Trade Rating: 0
Location: darlington
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Howay stop pixxin about its 32 to 34...sorry for the lack of humour because sayin 25 and 72 must of been a joke..ha ha...not.
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Posted: Tue Dec 25, 2012 9:09 am |
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Joined: Feb 07, 2010 Posts: 3948
Trade Rating: +7
Location: A Track near you ;)
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bezford wrote: |
Howay stop pixxin about its 32 to 34...sorry for the lack of humour because sayin 25 and 72 must of been a joke..ha ha...not. |
Sorry I must have forgot to laugh, hahahahahaha, No! that's what I actually run 
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| Renault Clio III RS - Race Car 
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Former Poverty 206 XS 1.6Turbo Owner  | |
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Posted: Tue Dec 25, 2012 9:57 am |
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Joined: Jan 29, 2011 Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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138Andy wrote: |
it will say on the wall of the tyre  |
Where? Do all tyre manufacturers make 1 size of tyre to fit 1 make and model of vehicle?
You're getting confused with the maximum pressure marking.
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Posted: Thu Dec 27, 2012 5:52 pm |
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Joined: Aug 11, 2010 Posts: 56
Trade Rating: 0
Location: fife
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Mattie-RS wrote: |
novatron1_2 wrote: |
have a play using the standard pressure, higher pressures give an increase in handling until a pint when the tyre's contact patch is reduced |
Does it?? Must have been doing it wrong all those times with lower pressure to increase in grip/handling |
That's interesting, I've always found the opposite, here's a good article:
www.modified.com/tech/...ewall.html
Part of it says:
How does a tuner manipulate tire loading and slip angle? By tweaking the spring rates, anti-roll bar rates, tire sizing and pressure, and to a lesser degree, the shock damping. The first option a tuner has is to increase the tire pressure. The harder a tire is inflated, within reason, the smaller slip angle it develops. In the case of a nose-heavy front-wheel-drive car, if you add several psi to the front tires and take some pressure out of the rear, the front tires will run a smaller slip angle while the rear tires' slip angle will increase. This alone can do quite a bit to reduce understeer.
So it's saying you can make the back 'looser' by running less pressure and make the front grip better by running more pressure.
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| 206 1.9D, 210,000 now dead following failed submarine experiment (flood) | |
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