Nitrogen in tires

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#11

07-12-2008, 10:12 AM

ZEM930

Teamspeed Senior Member

Join Date: Mar 2008

Location: Orlando

Posts: 682

To the best of my knowledge every new Porsche is supposed to have it in their tires? Maybe im worng?

#12

07-12-2008, 10:48 AM

GrayTT

Teamspeed Pro

Join Date: May 2008

Location: MidEast

Posts: 15,199

Quote:

Originally Posted by msindi

It actually is not a scam...
I used to fill my Gallardo with N2 only given the heat in Duabi in the summer.
You can check with TPMS since Temp and Pressure are related (or so I was told in thermodynamics in college)

true (us engineers need to stick 2gether)

you see the volume/pressure of N does not change as much as air (mixed gas) with temp...

GUYS...
TEST IT!!! use N on the left set and air on the right set take the pressure b4 and after a 30min drive. Let us know the pressure on which side changed more...

#13

08-11-2008, 01:38 AM

Edgy01

Teamspeed Member

Join Date: Feb 2008

Location: Santa Barbara, CA

Posts: 112

How does a dealership actually fill the tire 100% with nitrogen? Since air is close to 79% nitrogen already it appears that they have to figure out how to bring it up to 100%. It would appear to me that they would need to suck the tires empty, collapsing the tire bead on the rim in order to fill them with 100% nitrogen. Is there a special tire machine that is contained within a pressure vessel that will keep "air" out, and be filled with 100% nitrogen? If the objective is to fill the tire with 100% nitrogen there is no way to do that with today's tire mounting machines.

dan