Removing Stock BOV ..NEED HELP!

[trickey1991]

ok. so Im removing my stock BOV and im installing my tial 50mm. on the stock bov there is a large vacuum line that connects to the back and then connects into the stock intake pipe and into a line ontop of the valve cover towards the front. SO! heres what a stock one looks like



now my question is .. is it safe to what this guy did? and just cut the vacuum hosing and plug it? or put a mini breather on it.and if i do this is there anything else i have to do so it doesnt harm my engine?

[quadracer111]

Thats the recirculating hose, just go to the hardware store and buy a plug, I forget the diameter. I wouldn't cut it right away because you might not like how your car runs with a vta bov if you're not tuned for it.

[Skym]

In red circle is the PCV hose where the blowby gas from engine (with oil when boost levels are raised) gets vented into rubber intake pipe that's located infront of turbo when engine is under boost. If you block it, can blow the turbo oil seals, etc.

The 1.1 inch or so hard pipe after the BOV recirculation joiner that's connected to stock BOV is the recirculation pipe for BOV and goes to the same rubber intake pipe that's located infront of turbo.

[Rblove26]

Yeah i was about to say that the line circled in red does not look like the recirculation pipe, below it where you can kind of see a hose clamp would be the one you would want to disconnect and block off, if you dont block in before the turbo then you will be pulling in unmetered air and causing the engine to run lean. I would think that if you took you recirculation pipe off right after the stock BOV and remove the soft piece and block it off at the hard pipe that should be below the intake pipe, that way wont be visible either. Just my thoughts, can anyone correct me on this?

[Nismo_line]

the black hard pipe that connects to the bov is the recirc pipe take the bov and rubber hose that connects to the black hard pipe off and block off the hard pipe

[Skym]

With MAF it's best to recirculate the air (unless you use a blow through MAF) due to your removing air behind MAF (that MAF has already measured) and ECU doesn't compensate, so ECU injects what it sees from MAF and engine goes rich (engine can stall due to running too rich). With MAP it's measured at intake plenum, so don't have to worry about venting to engine bay or recirculating the air as ECU can compensate.

[Nismo_line]

is it really noticeable i have mine blocked off there and havent had a problem

[trickey1991]

does anyone have pics of there engine bay and how they did it? im really neednig to get this done and need a better picture so i know what to do so i dont F-uck **** up

[Nismo_line]

i dont have it block off in the picture but right beside the bov there is that black pipe thats the one you block off

[trickey1991]

and where does the other one go thats at the front of the valve cover? that feeds down to the stock intake?i just thought it was all in one.

[Nismo_line]

never had to touch that one

[TheyKilledKenny]

Exhaust side valve cover hose should go back to PCV or a oil catch tank or from tank to PCV I believe

I have mine going to a catch tank

[trickey1991]

weird cuz i know alotta guys that just plug that side..and put after market intakes on? or they put one of those miniature air filters on?

[TheyKilledKenny]

ya my intake side is capped plugged

[Nismo_line]

i have a hks air filter on mine all i had to do was block off that hard pipe beside the bov and that was it