Deleting PCV? Should I do it?

BlueOvalStangGT

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Oct 27, 2003

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Nov 26, 2005

#1

• Nov 26, 2005

• #1

I run a breather on my valve cover but I still have my PCV hooked up. I think the PCV valve has something to do with the oil I found in intake manifold so I figured I would delete it. Cant I just keep the breather on the valve cover and put another breather on hte back of the lower intake? That would work the same right?

 

rgs

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Dec 11, 2004

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Vancouver, Canada

Nov 26, 2005

#2

• Nov 26, 2005

• #2

rig up an oil seperator in the pcv line

 

HISSIN50

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Nov 29, 1999

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Nov 26, 2005

#3

• Nov 26, 2005

• #3

Whatever you choose, running a breather and PCV is kinda of a mixed bag of poo. I would go one way or the other. Simply stated, the breather set up will not actively scavenge vapors from the crankcase like PCV does. On a forced induction set-up, things change. Often times, a light-bar set up can get away with a forced induction PCV valve. Or guys just run all breathers and delete the PCV.

Tim has some very nice write-ups on crankcase ventillation dynamics - he says it much more eloquently than I.

Good luck.

 

BlueOvalStangGT

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Nov 27, 2005

#4

• Nov 27, 2005

• #4

Is it really that neccesary to have?

 

HISSIN50

"How long does it take to get help in here?

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Nov 27, 2005

#5

• Nov 27, 2005

• #5

BlueOvalStangGT said:

Is it really that neccesary to have?

Click to expand...

Is the PCV really necessary? Not especially (though few alternatives are as efficient). But you do need to ensure you have adequate bi-directional ventillation of some sort.

Good luck.

 

BlueOvalStangGT

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Nov 27, 2005

#6

• Nov 27, 2005

• #6

Would filters on both ends be enough? I actually just put a filter on the end of the pcv valve and a filter on the valve cover.

 

18mustangs

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Jun 8, 2005

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Virginia Beach, VA

Dec 2, 2005

#7

• Dec 2, 2005

• #7

BlueOvalStangGT said:

Would filters on both ends be enough? I actually just put a filter on the end of the pcv valve and a filter on the valve cover.

Click to expand...

No filtered breathers alone are not enough as you are equalizing the pressure between the crankcase but you're not evacuating the crankcase of the corrosive vapors like the PCV system does. The stock PCV system when properly maintained is a good piece of engineering and costs you zero performance and extends engine life. Just keep it and drive on. :SNSign:
Tim

 

OrangeMustangGt

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Dec 2, 2005

#8

• Dec 2, 2005

• #8

i agree,,,,who wants oil blowing out into your hvac vents?

 

BlueOvalStangGT

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Dec 2, 2005

#9

• Dec 2, 2005

• #9

Well, how am I supposed to run it then?

 

a50sn95

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Oct 12, 2001

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Elk Grove, CA

Dec 2, 2005

#10

• Dec 2, 2005

• #10

I run mine just like stock, with a separator, and a turbo coupe PCV valve.
And I don't think the seperator does any good on my setup. (Fresh short block, good ring seal...)
Dennis

 

G

Green 94 5.0

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Mar 25, 2002

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Dec 3, 2005

#11

• Dec 3, 2005

• #11

i deleted the pcv when i switched intakes. i have both valve covers breathed. we will see how it works out as soon as i have the car completely together again.

 

OrangeMustangGt

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Dec 3, 2005

#12

• Dec 3, 2005

• #12

what i did was sorta wierd, but it works. Since i used my origional PCV location as my oil dump for my turbos, i ran the pcv hose from the upper intake, through a brake booster check valve to the pass. valve cover where the nipple is on the fill neck. Then i put a breather on the oil fill cap. its crazy, but it works damn good.