The Priming Track is a special type of minecart track from the Railcraft mod. This track is used to light the fuse of the different explosive carts, such as the TNT Cart and the Pumpkin Cart. How fast the fuse will last before the cart explodes can be adjusted by right clicking the track with one of the three kinds of Crowbars. The fuse is measured in ticks; 20 ticks = 1 second. This track is powered by a redstone signal. Since this track is made of Reinforced Rails, it is completely resistant to cart explosions.