Nissan 370Z Forum - View Single Post

1slow370 · 02-01-2011, 05:30 AM

well thats honda people. it's not a gas recirculation thing so much as it is a performance thing. The stock pcv system is designed to to keep pressures in the crankcase down, this works like a vacuum pump on a drag car and helps the piston rings seal, and reduces the amount of power needed to move the pistons down. thats why turbo guys have problems with "boosting the crankcase" or actually pressurizing it because most N/a pcv systems aren't designed to see positive manifold pressure. a better way to go is the good old catch can route, if you really want to get experimental and gain that .5hp you could go with the exhaust venturii system, where you weld a pipe on an angle into the exhaust collector hook the pcv system up to that and use the exhaust flow to pull the gasses out of the crankcase. those little filters are supposed to only be used on the "intake" side of the pcv system(which is not related to the intake manifold but which side it breathes through). pcv is also an emmisions thing but it has a purpose.

02-01-2011, 05:30 AM	#2 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	well thats honda people. it's not a gas recirculation thing so much as it is a performance thing. The stock pcv system is designed to to keep pressures in the crankcase down, this works like a vacuum pump on a drag car and helps the piston rings seal, and reduces the amount of power needed to move the pistons down. thats why turbo guys have problems with "boosting the crankcase" or actually pressurizing it because most N/a pcv systems aren't designed to see positive manifold pressure. a better way to go is the good old catch can route, if you really want to get experimental and gain that .5hp you could go with the exhaust venturii system, where you weld a pipe on an angle into the exhaust collector hook the pcv system up to that and use the exhaust flow to pull the gasses out of the crankcase. those little filters are supposed to only be used on the "intake" side of the pcv system(which is not related to the intake manifold but which side it breathes through). pcv is also an emmisions thing but it has a purpose. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50 Last edited by 1slow370; 02-01-2011 at 05:32 AM.