GolfGTIforum.co.uk
Model specific boards => Golf mk5 => Topic started by: 08micsta on 29 January 2009, 09:55
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Hello guys
Our GTi is sitting with no tyres and the guys at the tyre place want to knwo if the tyres that come factory fitted are x rated or y rated tyres?
Apparently Y rated is high speed and x is low speed. We are getting Bridgestone potenza's fitted.
Called the stealers no one knows. Please help me out guys. Which rating comes tandard from the factory?
Mike
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I've never heard of X speed rated tyres.. must be a S.A thing. Should be Y rated, and it's shocking that neither your tyre fitter, or dealership know that :shocked:
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Im also confused...
We had new tyres fitted to the Porsche and they didnt ask us anything...
Now the Golf they wanna know what type and the price difference is quite something...
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Techie called us back....
For reference:
W rated: max speed of 270km/ hour
X rated: 280km/ hour
Y rated: 300km/ hour
So if you get asked which rated tyre you want go for Y.
Unless you Hurdy. Then you want the Z rated :tongue:
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Techie called us back....
For reference:
W rated: max speed of 270km/ hour
X rated: 280km/ hour
Y rated: 300km/ hour
So if you get asked which rated tyre you want go for Y.
Unless you Hurdy. Then you want the Z rated :tongue:
LOL :grin:
I believe you will also want XL rating for extra load with the GTI tyres :smiley:
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:laugh:
What extra load could you possibly have in a GTI?? :tongue:
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Hurdy has to have special tyres filled with concrete to stop his car floating away on windy days thanks to all the CF goodness.
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:grin: :grin:
Hurdy-
I heard from a very very valid source that filling your tyres with nitrogen helps with 0-100 speeds...
Maybe something to consider for the pod?
Its a quick mod. Empty air... Pop in nitrogen. Takes 15 mins and since getting it on my dads car the difference is noticeable. It also keeps the tyres cooler when moving...
Mike
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I heard from a very very valid source that filling your tyres with nitrogen helps with 0-100 speeds...
Nah.. not so. It has other advantages, but that isn't one of them.
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Techie called us back....
For reference:
W rated: max speed of 270km/ hour
X rated: 280km/ hour
Y rated: 300km/ hour
So if you get asked which rated tyre you want go for Y.
Unless you Hurdy. Then you want the Z rated :tongue:
LOL :grin:
I believe you will also want XL rating for extra load with the GTI tyres :smiley:
Yup, if XL (Extra Load) tyres are specified by the vehicle manufacturer (which the GTI is, as are most modern cars these days), then they must be used. In the UK and most European countries, it is illegal to fit tyres with a lower load rating (and/or speed rating) than those specified by the car maker. If you don't, you will invalidate your insurance.
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:grin: :grin:
Hurdy-
I heard from a very very valid source that filling your tyres with nitrogen helps with 0-100 speeds...
Maybe something to consider for the pod?
Its a quick mod. Empty air... Pop in nitrogen. Takes 15 mins and since getting it on my dads car the difference is noticeable. It also keeps the tyres cooler when moving...
And it is also a blatant rip off too. Think about it - the atmosphere is actually 80-81% nitrogen anyway. I think it has been proven that the only time 100% nitrogen filling of tyres is of any benefit is for tyres which are seriously temperature sensitive - so unless you have a McLaren Formula One car, or an Abt Audi A4 DTM race car - you will NOT get any benefit.
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From a chemistry point of view, since it will be moisture free, inert and less susceptible to heat changes - it is advertised to be able to maintain stable tyre pressures longer and the larger molecular structure decreases the chances of gas escaping, which can increase tyre life and mpg.. but regular pressure checks (which should be done regardless) have the same result. Although independent tests have shown the improvement to be no more than 1.5psi over a period of 12 months anyway.
If you want to be pedantic, nitrogen is also heavier than air, so will slow you down :grin:
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:grin: :grin:
Hurdy-
I heard from a very very valid source that filling your tyres with nitrogen helps with 0-100 speeds...
Maybe something to consider for the pod?
Its a quick mod. Empty air... Pop in nitrogen. Takes 15 mins and since getting it on my dads car the difference is noticeable. It also keeps the tyres cooler when moving...
And it is also a blatant rip off too. Think about it - the atmosphere is actually 80-81% nitrogen anyway. I think it has been proven that the only time 100% nitrogen filling of tyres is of any benefit is for tyres which are seriously temperature sensitive - so unless you have a McLaren Formula One car, or an Abt Audi A4 DTM race car - you will NOT get any benefit.
Will it make a difference on a Porsche 911 Turbo?
Will have a word with the techie again Toph...
Mike
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:grin: :grin:
Hurdy-
I heard from a very very valid source that filling your tyres with nitrogen helps with 0-100 speeds...
Maybe something to consider for the pod?
Its a quick mod. Empty air... Pop in nitrogen. Takes 15 mins and since getting it on my dads car the difference is noticeable. It also keeps the tyres cooler when moving...
And it is also a blatant rip off too. Think about it - the atmosphere is actually 80-81% nitrogen anyway. I think it has been proven that the only time 100% nitrogen filling of tyres is of any benefit is for tyres which are seriously temperature sensitive - so unless you have a McLaren Formula One car, or an Abt Audi A4 DTM race car - you will NOT get any benefit.
Will it make a difference on a Porsche 911 Turbo?
What, nitrogen? In standard road tyres, definately not - snake oil! If it was being used on a track day, with some 'not for highway use' race slicks, then maybe - though as always, it is the nut holding the steering wheel (ie, the driver) which has by far the 'most difference' on how a car 'performs'. If you don't believe me, then Google "Don Palmer". Don is a 'driving god' - and his skills allow him to beat things such as scoobys, 911s and the like around a track (and probably on the road too), when he just drives a Golf TDI with (I think) just 115 bhp. As always, it isn't "what you have got", it is "how you use them"! :wink: