Author Topic: GTi tyre ratings.... X or Y rated?  (Read 4296 times)

Offline Teutonic_Tamer

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Re: GTi tyre ratings.... X or Y rated?
« Reply #10 on: 30 January 2009, 09:34 »
: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.
Sean - Independent Automotive Engineering Technician (ret'd)
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'06/7 Golf Mk5 GTI 5dr (BWA) DSG, colour coded,

I feel like a homo


Offline topher

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Re: GTi tyre ratings.... X or Y rated?
« Reply #11 on: 30 January 2009, 09:46 »
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:

Offline 08micsta

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Re: GTi tyre ratings.... X or Y rated?
« Reply #12 on: 30 January 2009, 10:01 »
: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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Offline Teutonic_Tamer

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Re: GTi tyre ratings.... X or Y rated?
« Reply #13 on: 30 January 2009, 10:35 »
: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:
Sean - Independent Automotive Engineering Technician (ret'd)
-----
'06/7 Golf Mk5 GTI 5dr (BWA) DSG, colour coded,

I feel like a homo