Is nitrogen filled tire worthless?
10-22-2007, 08:29 PM
#11
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Heck, if its free...no sweat. All the air pump places to change into the nitrogen machine. It's more "Greener" for the environment. I'm willing to pay up to what I usually pay, $.50 for all 4 tires. 
But I don't know the cost of those machine either.
But I don't know the cost of those machine either.
10-22-2007, 08:37 PM
#12
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I disagree with all of you. Filling a tire with nitrogen will allow it to retain a much more consistent pressure in the face of temperature variations.
Tires have a specific pressure at which they generate optimal grip, but the inflation pressure of a tire filled with air changes as the tire's temperature changes. Since tires heat up as you drive on them, at some point during your drive they're either going to be too hot or too cold and will thus be giving up grip. Track guys compensate for this by leaving the pits with very soft tires, which warm up after several laps to operating temperature.
Filling tires with nitrogen greatly reduces the pressure change between the cold temperatures and the hot temperatures, therefore improving the tires' performance on the out laps. The fact that you'd only get (say) 95% nitrogen doesn't matter -- the pressures would still be more stable than tires filled with normal 78% nitrogen air.
Tires have a specific pressure at which they generate optimal grip, but the inflation pressure of a tire filled with air changes as the tire's temperature changes. Since tires heat up as you drive on them, at some point during your drive they're either going to be too hot or too cold and will thus be giving up grip. Track guys compensate for this by leaving the pits with very soft tires, which warm up after several laps to operating temperature.
Filling tires with nitrogen greatly reduces the pressure change between the cold temperatures and the hot temperatures, therefore improving the tires' performance on the out laps. The fact that you'd only get (say) 95% nitrogen doesn't matter -- the pressures would still be more stable than tires filled with normal 78% nitrogen air.
10-22-2007, 09:53 PM
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^ I second that.
If you are talking about track, then yes. I read somewhere where .25 psi makes a world of difference on the track. That's why majority of race car uses nitrogen.
As far as on the road, the improvement margins is way too slims. It might depend on where you lived you. For example, I'm sure Canada with cold weather will see a bit bigger difference. For me down here in the tropical, next to worthless.
If you are talking about track, then yes. I read somewhere where .25 psi makes a world of difference on the track. That's why majority of race car uses nitrogen.
As far as on the road, the improvement margins is way too slims. It might depend on where you lived you. For example, I'm sure Canada with cold weather will see a bit bigger difference. For me down here in the tropical, next to worthless.
10-23-2007, 05:59 AM
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damn I was gunna chime in with the track thing.
I used to run it in the slicks of my drag car to keep them equal pressure. It is hard to keep slick equal in florida in the summer cause the sun hits the tires and heats them up.
I used to run it in the slicks of my drag car to keep them equal pressure. It is hard to keep slick equal in florida in the summer cause the sun hits the tires and heats them up.
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