question!
10-21-2009, 10:29 AM
#3
on iwsti there's like 3 threads with over 15 pages each and has lots of very good information on how your pcv system works....do u plan to vta?
Last edited by STiAlain; 10-21-2009 at 11:59 PM.
10-21-2009, 12:30 PM
#4
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Unless you have a closed-loop catch can like this, every crankcase hose is routed into it...
...but most come in common two-port form like this.
^^Assuming you have this style:
-See the pipe w/3 hoses on the TMIC on the pic below? You'll have to remove it and replace the driver's side hose with a longer piece and join them with a tee on the passenger's side, OR you can keep it and let it sit over your IC piping.
-Next, the hose from the same tee going to the inlet tube before the turbo needs to be tee'd with the PCV valve hose that's also going into the inlet tube. After that last tee with the PCV valve, send the hose to one of the fittings on the the oil catch tank and return to the intake from the other fitting of the tank.
-What you are doing is bypassing all the lines going into the inlet tube to prevent oil/blow-by from entering your intake and hence getting caught in the tank before going back in the motor.
Hope I helped. It would be easier if I drew it, but NASIOC can otherwise show you if anything.
Love, Joe
...but most come in common two-port form like this.
^^Assuming you have this style:
-See the pipe w/3 hoses on the TMIC on the pic below? You'll have to remove it and replace the driver's side hose with a longer piece and join them with a tee on the passenger's side, OR you can keep it and let it sit over your IC piping.
-Next, the hose from the same tee going to the inlet tube before the turbo needs to be tee'd with the PCV valve hose that's also going into the inlet tube. After that last tee with the PCV valve, send the hose to one of the fittings on the the oil catch tank and return to the intake from the other fitting of the tank.
-What you are doing is bypassing all the lines going into the inlet tube to prevent oil/blow-by from entering your intake and hence getting caught in the tank before going back in the motor.
Hope I helped. It would be easier if I drew it, but NASIOC can otherwise show you if anything.
Love, Joe
Last edited by joejoe69; 10-21-2009 at 12:32 PM.
10-21-2009, 09:16 PM
#6
look at the element/peterson set up with the breather at the top of their cans thats the true way to catch most of the oil and oil vapors from getting into your inlet by vta.
when crawford's race car is at events they run a vta set up where it dumps into a bucket while the car is being pushed around the track at constant boost (open loop). even though the catch can they sell isnt a vta setup...just another item to spend money on i guess....in the video below will show u a little more about what i am talking about (same way i have mine running) and the con of running a vta setup
http://www.youtube.com/watch?v=dr0nbJTTk6s
btw im really drunk
when crawford's race car is at events they run a vta set up where it dumps into a bucket while the car is being pushed around the track at constant boost (open loop). even though the catch can they sell isnt a vta setup...just another item to spend money on i guess....in the video below will show u a little more about what i am talking about (same way i have mine running) and the con of running a vta setup
http://www.youtube.com/watch?v=dr0nbJTTk6s
btw im really drunk
Last edited by STiAlain; 10-21-2009 at 09:42 PM.
10-21-2009, 11:30 PM
#7
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The PCV system on subies are very complex. Theres some thread on Nabisco some 20 pages long on the topic. I gotta go read it again because I had a catch can on the crankcase breathers for about 5,000 miles, sold my catch can, and ran about 80k miles without one. ugh.
I have to go buy a decent one and hook it up properly..
I have to go buy a decent one and hook it up properly..
10-21-2009, 11:56 PM
#8
http://forums.nasioc.com/forums/show....php?t=1866781
another good thread with pics, information, and examples
another good thread with pics, information, and examples
10-23-2009, 01:06 PM
#10
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hey guys thanks for the all info, man was i having a hard time! lol but got it hook up. does the catch can really help that much? where would the oil go with out a catch can cause i was running my car with out a catch can 4 sometime did not see any oil anywhere idk noob question! lol thanks for all the help though.
10-23-2009, 01:37 PM
#11
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Combustion gases can still get past your rings and into your crankcase mixing with oil (blow-by), exit out of your crankcase and valve cover vents, end up into your intake and eventually your engine. That oil will mess up combustion efficiency and cause you to lose horsepower, lose mpg's, and even cause knock. Ever opened up a used motor and find it to be all black and nasty on the valves and piston tops?? = blow-by.
On turbo'd cars especially? Yes.
Read my reply to abunai's quote, you'll find out where the oil goes.
On turbo'd cars especially? Yes.
Read my reply to abunai's quote, you'll find out where the oil goes.
Last edited by joejoe69; 10-23-2009 at 01:40 PM.
11-02-2009, 11:55 PM
#12
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I happened to open up my oil catch tank today and see how much oil accumalated in there.
I found this much crap at the bottom but most of it was caught in the steel sponge, which I use for baffling air and oil. Works great. No oil in my turbo inlet hose return.
Just to let y'all know what's hurting your motor without sporting some sort of oil catch or separator. Stop it while you can.
I found this much crap at the bottom but most of it was caught in the steel sponge, which I use for baffling air and oil. Works great. No oil in my turbo inlet hose return.
Just to let y'all know what's hurting your motor without sporting some sort of oil catch or separator. Stop it while you can.
