Edema has many possible causes: 1  Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. 2  Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Cars with nitrous-equipped engines can be identified by the purge of the delivery system that most drivers perform prior to reaching the starting line. A separate electrically operated valve is used to release air and gaseous nitrous oxide trapped in the delivery system.
Nitrous Oxide (N2O) is a true enigma in the world of drag racing. It is without a doubt one of the most popular and most misunderstood products used to increase the horsepower of a high-performance racing engine. Since the proper use of nitrous can be extremely useful in the quest for race winning performance, we