PCV system

[Rikolas]

Alright, so I have some questions about this thing. I have FP intake and there isn't a spot for me to plug the hose in to get a vacuum to relieve the pressure from the crankcase. So my question is, is there anything I can do to cause a vacuum to act like it was connected to my intake? Like something I can buy and attach to it?

 

[dsmornothing]

It does not need to be hooked up to the intake. You can buy a small K&N filter or a small fuel filter and just leave it open. Keep your intake clean.

 

[007jimmy]

It does not need to be hooked up to the intake. You can buy a small K&N filter or a small fuel filter and just leave it open. Keep your intake clean.

No you are wrong. It DOES need to be hooked up to the intake. The FP pipe is thick enough to drill and tap a hose barb and some sort of catchcan inline. Please read:http://www.dsmtuners.com/forums/articles-engine-fuel/366890-4g63t-pcv-system.html

 

[dsmornothing]

If I am wrong, How did I drive my car like this for over 2 years?

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[007jimmy]

If I am wrong, How did I drive my car like this for over 2 years?

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Just because you drove like that for 2yrs dont make it right...

 

[dsmornothing]

Never once had an issue and its not un common to see. Its main reason is for emissions.

 

[My1GLaser]

It really has very little to do with emissions. It is good to have a functioning PCV system to keep fuel vapors and moisture out of your oil. It breaks it down quicker and can thin your oil out prematurely. I have looser ring end gaps and get decent blowby even on a healthy motor running 35psi boost. I like to keep my oil as clean as possible.

I agree to drill and tap the FP intake and put a fitting to connect some sort of PCV system preferably with a catch can like Calan sells. I also have one of these between the intake manifold and valve cover where the PVC valve goes. The stock PCV doesn't hold back much boost from pressurizing the valve cover.

BTW, not having an upper timing cover on there makes me cringe! I don't know how people can run like that! I can see a dipstick blow out, hit the hood and end up lodging in the timing belt and ruining a perfectly good motor! Or the alt or PS belt breaking and flying in there. Or oil spraying all over it from a leaking oil cap. High boost is hazardous!

 

[007jimmy]

Wrong again.... Its for crankcase ventillation. Did you read the thread i linked??

 

[dsmornothing]

Its to pull the fumes from the crank case instead of releasing them into the air. Ever see the big breathers on a Big Block? Its the same damn thing as leaving that open. As I said I did it for 2 years no issues, And the car was like that before I bought it.

And if its so bad, Please tell my why so many people are doing the same thing by running a catch can...... Or the guys running with no intakes. Tell them its bad, bet you get laughed at.

 

[Rikolas]

It is bad over time. The pressure inside your crankcase just builds and builds and the fumes contaminate your oil like stated above and also can cause oil leaks because of the pressure. It's blowby causing this and it is highly recommended to keep the PCV system on your car, even if a lot of people get rid of it like you see. I'm just trying to fix mine back to how it should be. I'm not having a problem with the pressure right now, but I don't want to have one in the future is why I'm wanting to fix it.

But having it run back into the intake causes my AFR to run a little bit more learn right? or am i mistaken?

 

[johnovision27]

If I am wrong, How did I drive my car like this for over 2 years?

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Allowing excess air to enter your engine unaccounted for is always a nono. Just because you see some 'tricked out' ricer with a fancy little filter there doesn't mean it's correct. Yes sure you're keeping your intake track clean, but you aren't doing anything positive aside from that.

More then one way to skin a cat, doesn't mean they're all the least painful.

 

[dsmornothing]

Allowing excess air to enter your engine unaccounted for is always a nono. Just because you see some 'tricked out' ricer with a fancy little filter there doesn't mean it's correct. Yes sure you're keeping your intake track clean, but you aren't doing anything positive aside from that.

More then one way to skin a cat, doesn't mean they're all the least painful.

How does this allow more air to enter your engine? I get the OP wants to run it like stock, but please enlighten me on this. Running a filter is just a cheap catchcan in theory. Personally I have always block my PCV and ran a catch can. Or like in my first car just open. Never had any nasty looking oil or anything.

 

[jayson427]

How does this allow more air to enter your engine? I get the OP wants to run it like stock, but please enlighten me on this. Running a filter is just a cheap catchcan in theory. Personally I have always block my PCV and ran a catch can. Or like in my first car just open. Never had any nasty looking oil or anything.

i bet your car doesnt idle 100% perfect either. a motor is a big vacuum and the air built up in the crank case needs some where to go its not just for emmisions. you can run it anyway you want but the proper way is to hook everything up.

 

[johnovision27]

How does this allow more air to enter your engine? I get the OP wants to run it like stock, but please enlighten me on this. Running a filter is just a cheap catchcan in theory. Personally I have always block my PCV and ran a catch can. Or like in my first car just open. Never had any nasty looking oil or anything.

The link in post 3 will explain this in full.

 

[Rikolas]

SO if I do drill a hole and have it hook back up, will it mess with afr? Or will it stay the same? I have the understanding that it will cause more air to go into it causing it to be more lean. Does anyone have the answer?