If you're running IM assisted crankase ventilation, check out my revised setup:
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Honda-Tech Member
Joined: Aug 2002
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If you're running IM assisted crankase ventilation, check out my revised setup:
Parts used to complete my setup:
oem pcv valve
2 oem inline check valves
3/8" brass t fitting
closed catch can
3/8" air filter
how it works:
valve cover fitting (VENT #1):
during low load/ vacuum conditonions. gasses exit through valve cover fitting. i don't use filter because theres no need to use it. same thing occurs happens during boost. problems may occur if it becomes a restriction, gets clogged up
pcv valve (VENT #2):
i still have stock oil box then pcv valve on intake manifold. during low load/vacuum conditions, gasses will evacuate through IM just liek the would stock. under boost, they would still exit through first check valve. i placed filter in case during vacuum conditions there will be air drawn through check valve.
second check valve is there to ensure no pressure goes back into engine.
intake manifold contamination:
before you say anything againts this, consider hondas driving 200-300k miles. contamination occurs only during vaccuum. not WOT condiotions, while stock hondas have this at all time.
and heres a pic:
oem pcv valve
2 oem inline check valves
3/8" brass t fitting
closed catch can
3/8" air filter
how it works:
valve cover fitting (VENT #1):
during low load/ vacuum conditonions. gasses exit through valve cover fitting. i don't use filter because theres no need to use it. same thing occurs happens during boost. problems may occur if it becomes a restriction, gets clogged up
pcv valve (VENT #2):
i still have stock oil box then pcv valve on intake manifold. during low load/vacuum conditions, gasses will evacuate through IM just liek the would stock. under boost, they would still exit through first check valve. i placed filter in case during vacuum conditions there will be air drawn through check valve.
second check valve is there to ensure no pressure goes back into engine.
intake manifold contamination:
before you say anything againts this, consider hondas driving 200-300k miles. contamination occurs only during vaccuum. not WOT condiotions, while stock hondas have this at all time.
and heres a pic:
Thread Starter
Honda-Tech Member
Joined: Aug 2002
Posts: 6,112
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Re: (mopar junkie)
these breathers.. are they both from valve cover? are you still retaining pcv valve. if i'm correct, w/ intake manifold assisted ventilation, pcv will ensure the right vacuum during vaccum conditions.. however. i'm not sure if it still retains proper vacuum when connected to compressor housing and under boost to compressor housing.
Honda-Tech Member
Joined: Jun 2003
Posts: 197
Likes: 0
From: DFW, TX, USA
this diagram is for a neon. The neon has 2 ports on the valve cover that are normally connected to a PCV valve. I ditched all that crap and connected both ports to a sealed catch can.
Under engine vac the intake manifold is sucking air out of the crankcase like normal.
Under boost the turbo intake is really starting to suck air so it helps pull air out of the crankcase. Any oil/fluids get trapped in the catch can.
I haven't tested how much vac gets pulled while under boost. I'll get around to that one of these days...
Under engine vac the intake manifold is sucking air out of the crankcase like normal.
Under boost the turbo intake is really starting to suck air so it helps pull air out of the crankcase. Any oil/fluids get trapped in the catch can.
I haven't tested how much vac gets pulled while under boost. I'll get around to that one of these days...
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