skippyboyo1 Posted May 11, 2011 Share Posted May 11, 2011 (edited) Im sure most or you have heard about Nitrogen filled tyres (Ive only heard about the nissan gtr having this),my local tyre dealer is now offering this for £10 for all tyres with free top ups. i was reading the info and benefits over air are - improved handling less wear improved economy All sounds good to me? what do you think anyone had this done Edited May 11, 2011 by skippyboyo1 (see edit history) Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted May 11, 2011 Share Posted May 11, 2011 If you click 'edit post' and then click 'go advanced' you can change your title. I'm not going to do it because it made me smile £10 seems a lot TBH, but it's not a bad thing to do. You probably won't notice a huge difference though unless you do a before and after test on a track/private test road. Quote Link to comment Share on other sites More sharing options...
ellis Posted May 11, 2011 Share Posted May 11, 2011 I'd file it just under Tartan Paint and Glass Hammers. Quote Link to comment Share on other sites More sharing options...
AlliRR Posted May 11, 2011 Share Posted May 11, 2011 £10?? Its standard here! +1 with gaz Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 If you click 'edit post' and then click 'go advanced' you can change your title. I'm not going to do it because it made me smile £10 seems a lot TBH, but it's not a bad thing to do. You probably won't notice a huge difference though unless you do a before and after test on a track/private test road. ive no idea what your talking about? Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 If you click 'edit post' and then click 'go advanced' you can change your title. I'm not going to do it because it made me smile £10 seems a lot TBH, but it's not a bad thing to do. You probably won't notice a huge difference though unless you do a before and after test on a track/private test road. £10?? Its standard here! +1 with gaz how much can you get it for then? this is the first time ive seen it so ive no idea Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted May 11, 2011 Share Posted May 11, 2011 ive no idea what your talking about? this thread just took a turn for the disappointing how much can you get it for then? this is the first time ive seen it so ive no idea It was free at the last place I went to buy tyres too... Quote Link to comment Share on other sites More sharing options...
stevie_b Posted May 11, 2011 Share Posted May 11, 2011 I'm pretty sure Micheldever Tyres (big tyre depot in southern England) charge a bit extra for nitrogen filling. I've never bothered with it. I don't drive spiritedly enough to warrent it. Also, when the tyres need a top-up I'm not going to drive several miles to where I bought the tyres from, just so they can stick in 2 or 3 psi of N2 when I've got a perfectly-working foot pump in my garage. Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 I'm pretty sure Micheldever Tyres (big tyre depot in southern England) charge a bit extra for nitrogen filling. I've never bothered with it. I don't drive spiritedly enough to warrent it. Also, when the tyres need a top-up I'm not going to drive several miles to where I bought the tyres from, just so they can stick in 2 or 3 psi of N2 when I've got a perfectly-working foot pump in my garage. true however they need pumping up less as nitrogen molecules are bigger than air so less escapes.wow check me out Quote Link to comment Share on other sites More sharing options...
stevie_b Posted May 11, 2011 Share Posted May 11, 2011 (edited) true however they need pumping up less as nitrogen molecules are bigger than air so less escapes.wow check me out Even if that's true, I'm not sure it'll make a measurable difference. I believe they offer it because nitrogen is inert and doesn't contain things like moisture. Air is 78% nitrogen anyway. If the other constituents like oxygen, carbon dioxide etc escape more readily than nitrogen, then every time I go round the "air loss - top up" cycle I'll be gradually increasing the concentration of nitrogen in the tyre. Edited May 11, 2011 by stevie_b (see edit history) Quote Link to comment Share on other sites More sharing options...
Rob Posted May 11, 2011 Share Posted May 11, 2011 true however they need pumping up less as nitrogen molecules are bigger than air so less escapes.wow check me out This is true. Tony Doyle, the track cyclist once ran helium filled tyres, as a weight reducing measure, but only for shorter races as the helium escaped very quickly due to its tiny molecular size. Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 This is true. Tony Doyle, the track cyclist once ran helium filled tyres, as a weight reducing measure, but only for shorter races as the helium escaped very quickly due to its tiny molecular size. and i hated my science teacher! Quote Link to comment Share on other sites More sharing options...
stevie_b Posted May 11, 2011 Share Posted May 11, 2011 I can imagine it's true of pure helium (or a high concentration of helium). Quote Link to comment Share on other sites More sharing options...
Guest Supra-Simon Posted May 11, 2011 Share Posted May 11, 2011 I run on nitrogen filled Perelli P-Zero Roso's ...... Improved handling - longs it's dry and the roads flat Less wear - well not really noticed any difference Improved economy - well I drive a TT supra... Economy not really on my mind Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 I run on nitrogen filled Perelli P-Zero Roso's ...... Improved handling - longs it's dry and the roads flat Less wear - well not really noticed any difference Improved economy - well I drive a TT supra... Economy not really on my mind and there it is...im not going to bother then.cheers simon Quote Link to comment Share on other sites More sharing options...
JamieP Posted May 11, 2011 Share Posted May 11, 2011 Free at wheels in motion. Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 Free at wheels in motion. do you use it then jamie? Quote Link to comment Share on other sites More sharing options...
JamieP Posted May 11, 2011 Share Posted May 11, 2011 Yes, cant say ive noticed any difference but then i dont like tyres much and do my best to kill them every chance i get. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted May 11, 2011 Share Posted May 11, 2011 notice it more on a bike, as above i get it free Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted May 11, 2011 Author Share Posted May 11, 2011 notice it more on a bike, as above i get it free didnt think about the bike! yeah good point Quote Link to comment Share on other sites More sharing options...
sideexitsupra Posted May 19, 2011 Share Posted May 19, 2011 I think it's supposed to keep the difference between hot and cold pressures lower. Meaning the pressure doesn't rise as much as the tyre gets hotter. We have thought about this for SteveLs' race car but not done it yet. Quote Link to comment Share on other sites More sharing options...
Marco79 Posted May 19, 2011 Share Posted May 19, 2011 I think it's supposed to keep the difference between hot and cold pressures lower. Meaning the pressure doesn't rise as much as the tyre gets hotter. We have thought about this for SteveLs' race car but not done it yet. You are correct which is why we use it in aircraft tyres, however I can't see it helping much with economy on tyres. Just means you can drive from the desert to the arctic without adjusting your pressures Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 26, 2011 Share Posted May 26, 2011 I think it's supposed to keep the difference between hot and cold pressures lower. Meaning the pressure doesn't rise as much as the tyre gets hotter. We have thought about this for SteveLs' race car but not done it yet. Exactly, and if they don't pull a partial vacuum in the tyre before filling with nitrogen the fill is a large percentage air still. No advantages say a more stable temperature / pressure gradient in use. I don't even bother in my race cars, too much hassle, and I have nitrogen on tap here, and a vacuum pump. Once you have set the race pressures hot you just let them cool to ambient overnight and check the cold tyre pressures, and use them as your baseline. Unless you take the car to the middle east, or the arctic to race you won't see much pressure change due to ambient weather temps. Edit: Should have read marco's post first, sorry mate Quote Link to comment Share on other sites More sharing options...
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