pcv removal idea...

[Sivad87]

this has been the answer i have been waiting for! i know im not going to draw enough vacumme to suck up all the air in the crank case but if i can get it to idle normal, drive normal, pull more air out under boost then before, eliminate a boost leak spot, and not hurt anything in the process i will be happy. i mean that was the whole purpose of this thread to begin with! maybe i should convert everything to 10AN lines. the bigger the lines the more air i draw correct?

honestly i dont want to sound like an ass or anything, but the ammount you pull out isnt going to be critical. this isnt going to even feel like a difference except for the fact that you eliminated a boost leak. honestly just do it and keep it if you like it and it works. this isnt like designing a head, its just a simple air system for something that is so minute in the grand scheme of things. it should work, just go try it. and best of luck

 

[99gst_racer]

honestly i dont want to sound like an ass or anything, but the ammount you pull out isnt going to be critical.

How do you know this? I'm not trying to be an ass, but do you have any proof of this?

Obviously, there will be some difference with the amount of blowby that stays in the crankcase and contaminates the oil depending on if you are pulling the air out or not.

Here's a post I found from one of the moderators on evotuners.net:

"I have a sheet metal intake manifold that does not have a nipple on it for the PCV valve to connect to. Simply put I do not have positive crank case ventilation on my setup and as a result I do oil analysis (blackstone labs oil test system) to determine when to change my oil since I will get more blowby gasses, water vapor and whatnot in my oil than a car that has a correctly operating PCV system. My car is a weekend toy, but if I was going to use it as a daily driver I would go to the trouble of getting another nipple installed on my sheet metal intake and add the second catch can."

 

[oldman]

You guys are making this more difficult than it really is. Technically, MyBeatGSX has got it right, the stock routing is the best route, most thinks the breather is only for venting purposes when it's actually a two way street, hence the name BREATHER. If coating your IC with blowby is the main concern, an INTERNAL catchcan in route between the VC and the intake pipe like my setup would be the simplest solution. When I install my JM IM next week I might consider adding a aecond internal catch to my pcv to keep my IM clean but I really don't think a dirty IM is as much of a concern as a dirty IC.

 

[carl5463729]

my teacher told me about how his friend ran a "pan-o-vac" system. he is a stock car racer and runs in the outlaw class. it works on his car but i don't know how it would work on a daily. he just has a vacuum line running from the pcv hole to his exhaust and it is supposed to suck the air right out. i'm not totally sure about this system but he does run it.

 

[99gst_racer]

You guys are making this more difficult than it really is. Technically, MyBeatGSX has got it right, the stock routing is the best route, most thinks the breather is only for venting purposes when it's actually a two way street, hence the name BREATHER. If coating your IC with blowby is the main concern, an INTERNAL catchcan in route between the VC and the intake pipe like my setup would be the simplest solution. When I install my JM IM next week I might consider adding a aecond internal catch to my pcv to keep my IM clean but I really don't think a dirty IM is as much of a concern as a dirty IC.

I agree with you, but the downside to that is the fact that you are still using a potentially leaky PCV valve.

my teacher told me about how his friend ran a "pan-o-vac" system. he is a stock car racer and runs in the outlaw class. it works on his car but i don't know how it would work on a daily. he just has a vacuum line running from the pcv hole to his exhaust and it is supposed to suck the air right out. i'm not totally sure about this system but he does run it.

I was thinking about doing the same thing on my DSM.....

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Has anyone else ever tried this on a turbocharged 4 cylinder?

 

[dnhieu]

i have never personally tried this but i was talking to a bunch of old school muscle cars this weekend and almost every single one of them had this set up. they also said they just run a regular hose you can get from your local parts store with no signs of the hose melting or anything. i guess the heat is drastically reduced by the time it gets to the end of the downpipe...


btw nice drawing looks alot like mine haha