Originally Posted by
redneck323
A friend of mine said that he and another guy was playing with crankcase vaccum. He said they used an Air reactor pump tied the input to the PCV system and was able to pull 2 inches of vaccum on the crankcase. I asked what the effects were and he tried to explain to me how he had a scrubber hooked up as well to clean the crankcase gases seperating the carbon from actual gasoline vapor and said that the 2 together was able to free up 20 lb ft of torque on the dyno. Which means better fuel economy also!! Does this make sense as i cant get my head all the way around it. I mean theroetically it makes sense to me less air mass in the crankcase = less air resistance to the downward motion on the bottom side of the piston. I would also think less air resistance to the rotating assembly also (rods, crank...) any one else have any thoughts on this???