#232291 - 18/08/10 06:34 PM
Re: Tyre size
[Re: justin]
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Registered: 03/01/09
Posts: 2509
Loc: Co, DURHAM
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why would you want to do that
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Fiesta ST200, K&N Panel Filter otherwise standard for now.
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#232292 - 18/08/10 06:38 PM
Re: Tyre size
[Re: Tez]
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Registered: 23/11/09
Posts: 4599
Loc: sheffield
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raise the profile a little??
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#232295 - 18/08/10 06:46 PM
Re: Tyre size
[Re: Micky]
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Registered: 15/10/08
Posts: 15118
Loc: Harpenden, Hertfordshire
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Think 45 profile tyres would look better, is your car lowered?
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 407BHP and 340lbft TD GT28/32 hybrid turbo, 3inch decat, 2.75inch exhaust, air intake + large MAF, injectors, fuel pump, tubular manifold
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#232298 - 18/08/10 06:51 PM
Re: Tyre size
[Re: H47PER]
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Registered: 01/03/05
Posts: 11552
Loc: Westbury-on-severn, Gloucester...
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Quote:
Quote:
At 70mph you will actually be doing 72.41mph
Not a massive difference 
woohoo, power mod
Not really as you have a larger mass to move so will require more energy and reduce effective power.Such a tiny amount you wouldn't notice it.
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#232299 - 18/08/10 06:53 PM
Re: Tyre size
[Re: Micky]
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Registered: 15/10/08
Posts: 15118
Loc: Harpenden, Hertfordshire
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TBH it would probably make the speedo more accurate as they are normally out by about 3-4mph at 70mph
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#232300 - 18/08/10 06:54 PM
Re: Tyre size
[Re: H47PER]
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Registered: 03/01/09
Posts: 2509
Loc: Co, DURHAM
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what about 205/45/16 this will give an actual diameter change of -5mm or -0.84.
205/45/17 will give an actual diameter change of 20mm or 3.36%.
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Fiesta ST200, K&N Panel Filter otherwise standard for now.
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#232301 - 18/08/10 07:00 PM
Re: Tyre size
[Re: Tez]
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Registered: 23/11/09
Posts: 4599
Loc: sheffield
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if you have 17 inch rims, they wont fit on
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#232302 - 18/08/10 07:01 PM
Re: Tyre size
[Re: Adam08]
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Registered: 30/03/10
Posts: 128
Loc: Monyash, Nr Bakewelll
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Quote:
TBH it would probably make the speedo more accurate as they are normally out by about 3-4mph at 70mph
I have noticed this on Sat navs, My speedo says 70, but sat nav says 68 
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#232303 - 18/08/10 07:03 PM
Re: Tyre size
[Re: justin]
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Site Supporter
Registered: 15/10/08
Posts: 15118
Loc: Harpenden, Hertfordshire
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Yea it depends on how worn the tyres are aswell
But I guess its better then an underestimate and end up getting nicked
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407BHP and 340lbft TD GT28/32 hybrid turbo, 3inch decat, 2.75inch exhaust, air intake + large MAF, injectors, fuel pump, tubular manifold
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#232304 - 18/08/10 07:08 PM
Re: Tyre size
[Re: Adam08]
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Registered: 23/11/09
Posts: 4599
Loc: sheffield
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i do believe that the sat nav is wrong not the speedo. all sat navs are like this i think. what would you trust more through a speed camera, satnav or speedo
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