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Old 01-29-2013, 04:24 AM   #1
en_focus
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Breather filters???

I've been reading up a little on the replacing the hose that connects the intake to the PCV with a breather filter... any thoughts on this???


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Old 01-29-2013, 06:25 AM   #2
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Is there a reason you want/need to remove it?

If your engine is basically stock and you do not have forced induction I wouldn't bother.

That hose is part of the PCV system and I don't think the system would function correctly with the hose removed.

I removed the PCV system when I was running a turbo.
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Old 01-29-2013, 07:16 AM   #3
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I was planning on slapping on an intake for starters and I had heard about a couple of people doing it so I didn't know if there was much of a benefit from that
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Old 01-29-2013, 08:58 AM   #4
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No need on a near stock car. Important to update the PCV routing with a turbo car.
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Old 01-30-2013, 05:40 AM   #5
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Alright... Thanks for the info
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Old 01-30-2013, 08:10 AM   #6
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the worth while intakes will have the connection for that hose on them.
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Old 02-08-2013, 06:18 AM   #7
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Removing emission devices is a federal offense and state offense in Texas.

The state fine is $25,000

The federal fine is $2,500 and jail time.

Have fun :)

Also the breather is a pressure style on a focus. All you'll do is be blowing blow by all over your engine bay.

I was having issues with oil on the throttle body plate, so I cut a piece of the line out and slide a lawn mower fuel filer in line and secured it with 2 hose clamps. 6 years later I've not had to clean the throttle plate once
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Old 02-09-2013, 10:16 AM   #8
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Actually that tube is the intake side for the PCV system and a filter shouldn't be put on there. The air going through that tube is metered first by the MAF and if you take that tube off, block off the intake port and put a filter on the valve cover, that air being sucked in would be un-metered. It would be a small amount and the car would compensate for it, but it still wouldn't be right.
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Old 02-09-2013, 11:58 AM   #9
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That's why I put my filter inline and kept the original path of the tubing, on the breather not pcv
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Old 02-09-2013, 01:24 PM   #10
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I actually did the same thing, with the lawn mower fuel filter. Caught any oil vapors that might travel backwards during low vacuum conditions. Seemed to work well.
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