WoW :!: :!: this post could get blown out of portation, because of the many factors involved. First does the tire know if it has air or nitrogen in it, i doubt it. Second has anyone ever checked what the tire pressure is after a 200 ft. burn out with Nitrogen VS air again :?:. Then it's North VS South, in the North you race in the daytime, in the South you race at Nite (too damn hot in the daytime) so if you don't have to have a generator you better have lot's of flashlights. Now some of the guys i know keep an oxygen bottle in the trailer to fill the air tank/tires/shifter bottle,etc. instead of a compressor and the air tank is carried on the tow vechicle, 4 wheeler/golf cart up to the staging lanes to make sure the tire pressure is to the liking.
HUMMMM :?: wonder if i put Helium in my tires will it go faster after all they will be lighter, JK
JMO
Zip.