question about hard intake pipe

[Simadowna119]

i am going to buy a dejon intake pipe this week and i was just wondering what do i do with the two lines that run out of the stock piping? the dejon only has the port for the BOV recirculation but not for the other two lines...... i know the one that goes to the valve cover you can just remove and the put a breather filter on the valve cover...

but what do i do with the other line? do i just block it off? if so what is the best way to do it and what is that line for?

 

[boostedjay32]

its for the charcol canister....you can block it of i think but wont pass emmisions

 

[Simadowna119]

i can block it off you think? anybody else know? i want a 100% posotive answer before i spend the money on the pipe... and also where do i block it off? at the end of the hose?.. or do i follow the hose to wherever it goes and block it off there?

 

[nlzn]

I don't know about you but a breather filter for me caused bad PCV issues.

The 100% correct way to deal with the pvc system involves double catch cans and the line still connected to the intake.

I'm sure if you are ordering from Dejon they can custom that nipple for you.

Or you could be like me and pull the nipple out of the stock intake, match a drill bit, mix some jb and call it a day.

 

[coryf1233]

I bought mine not too long ago. and you had the option of adding addition nipples to the intake i believe it was like 15 dollars extra

 

[LiquidX]

Yup, valve cover and charcoal canister. Unless you deleted your emissions I'd suggest having a nipple put on for the canister also.

 

[lacroixdp]

Don't do a breather filter - you'll be sucking in unmetered air. Do it the right way and get 2 nipples installed on the pipe as recommended above.

 

[Simadowna119]

well thanks... thats exactly what i needed to know and thats exactly what im gonna do....

thanks guys

 

[TuRBoTaLooN]

Don't do a breather filter - you'll be sucking in unmetered air. Do it the right way and get 2 nipples installed on the pipe as recommended above.

How will a breather filter suck in unmetered air?

The problem with a breather filter on the VC is there is no more vacuum pulling out excess crankcase pressure from the VC, so you may run into problems. It is fairly simple to tap the pipe and screw in a brass plug for the lines. I did that on my FP intake.

 

[lacroixdp]

How will a breather filter suck in unmetered air?

With the stock PCV system the fresh air inlet goes into the intake hose, which is after the MAF. You're still pulling excess pressure through the PCV valve during vacuum... this hose simply exists for fresh air introduction into the crankcase via a metered air source. If you disconnect this hose and instead put in a breather filter, your fresh air inlet will be sucking in air that hasn't been metered by the MAF. For more information, you may find this thread helpful:
http://www.dsmtuners.com/forums/newbie-forum/229338-stupid-pcv-question.html

 

[greg90gs]

wow i guess i better reconnect py pcv hose back up to my intake i have it just ran down on top of the tranny then the intake blocked off since all it really does is dump oil into your intake

 

[lacroixdp]

You can remedy that pretty easily. Introduce a catch can between the intake and the PCV valve, along with one of these to prevent boost getting into your crankcase should your PCV valve ever fail:
Check Valves - US Plastic Corporation

Put another catch can between the valve cover and your intake pipe. This will provide you with all the benefits of a working PCV system, along with preventing oil from getting into your intake pipe.