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Old 10-30-2008, 11:31 AM   #41
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03OrangeSVT,

So I should just get a longer tube and run to by the tranny without anything should be fine? I am getting rid of my car next year, so i don really care, but still I would love to take care of my car and sell it so someone who care about fofo...
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Old 10-30-2008, 03:15 PM   #42
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03orange can we get some pics of your catch can system
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Old 10-30-2008, 03:16 PM   #43
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I dont use a catch can, I vent it straight to atmosphere.
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Old 10-30-2008, 03:52 PM   #44
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03OrangeSVT: You do not have a proper crankcase ventilation system. You are simply allowing blowby to escape (which is also necessary).

I agree with you about not wanting that crap in my intake, and I agree that both the crankcase and valve cover vents are able to blow puffs of smoke... that's not the point. You need to have a system for flowing air through your crankcase to clean it of corrosive gases and acids, and to remove moisture, etc. Running a draft tube on the crankcase vent & a small filter up on the valve cover works while the car is moving, that's what I use. Using an unfiltered draft tube on the valve cover is a bad idea for a few reasons. These reasons have already been mentioned, but I'll spell it out again: (a) You won't have one-way vacuum, you'll have equal pressure on both ends of the system... so no airflow. (b) If you do get airflow (your PCV valve only allows one direction), you'll be sucking bugs, dirt, water, etc right into your valve cover... and I don't think anyone wants that junk flying around up there.

Once more:

There is nothing wrong with the OEM system, if you don't want to fool with it, you don't need to. If you are worried about keeping your intake manifold clean, or you're boosted, or just want to change things, there are a few ways to properly do this. OEM-style is italicized.

Crankcase vent:
PCV valve to intake manifold (large vacuum connector on throttle body)
PCV valve to catch can/screen filter to to intake manifold
PCV valve to draft tube

Valve cover vent:
Hose + Filter placed inside the airbox on the atmosphere side
Hose + Filter placed higher than the valve cover, anywhere in your engine bay
Small filter right on the valve cover (might drip oil)

Things to avoid:
Don't plug or cap either vent.
Don't run a draft tube on your valve cover, especially without a filter.
Don't run your valve cover vent to your intake piping, especially before the MAF. (You'll get a far dirtier than stock throttle body and intake manifold.)
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Old 10-30-2008, 04:40 PM   #45
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Quote:
Originally Posted by mattellermets View Post
works while the car is moving,
there is not nearly as much vac as you think.
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Old 10-30-2008, 05:00 PM   #46
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Why dont you guys ask Tom how he does ALL of his PCV systems............
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Old 10-30-2008, 05:07 PM   #47
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Quote:
Originally Posted by mattellermets View Post
03OrangeSVT: You do not have a proper crankcase ventilation system. You are simply allowing blowby to escape (which is also necessary).

I agree with you about not wanting that crap in my intake, and I agree that both the crankcase and valve cover vents are able to blow puffs of smoke... that's not the point. You need to have a system for flowing air through your crankcase to clean it of corrosive gases and acids, and to remove moisture, etc. Running a draft tube on the crankcase vent & a small filter up on the valve cover works while the car is moving, that's what I use. Using an unfiltered draft tube on the valve cover is a bad idea for a few reasons. These reasons have already been mentioned, but I'll spell it out again: (a) You won't have one-way vacuum, you'll have equal pressure on both ends of the system... so no airflow. (b) If you do get airflow (your PCV valve only allows one direction), you'll be sucking bugs, dirt, water, etc right into your valve cover... and I don't think anyone wants that junk flying around up there.

Once more:

There is nothing wrong with the OEM system, if you don't want to fool with it, you don't need to. If you are worried about keeping your intake manifold clean, or you're boosted, or just want to change things, there are a few ways to properly do this. OEM-style is italicized.

Crankcase vent:
PCV valve to intake manifold (large vacuum connector on throttle body)
PCV valve to catch can/screen filter to to intake manifold
PCV valve to draft tube

Valve cover vent:
Hose + Filter placed inside the airbox on the atmosphere side
Hose + Filter placed higher than the valve cover, anywhere in your engine bay
Small filter right on the valve cover (might drip oil)

Things to avoid:
Don't plug or cap either vent.
Don't run a draft tube on your valve cover, especially without a filter.
Don't run your valve cover vent to your intake piping, especially before the MAF. (You'll get a far dirtier than stock throttle body and intake manifold.)

you, Mr. Carnack, are a F@ck!ng idiot and obviously have no clue as to how things work. maybe you should do some more research before you start trying to give advice.
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Old 10-30-2008, 07:22 PM   #48
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^^Easy killer, or I'll have to lay the smack down (this is your warning).
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Old 10-30-2008, 09:09 PM   #49
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Quote:
Originally Posted by focusfreak03 View Post
you, Mr. Carnack, are a F@ck!ng idiot and obviously have no clue as to how things work. maybe you should do some more research before you start trying to give advice.
lol? get outa here. Mr. Carnack? Swearing through a forum filter? Niiiiice, some skill involved there...

Quote:
Originally Posted by illinipo View Post
there is not nearly as much vac as you think.
meh, I'd say there's just about as much vac as i think. ( very little ) I know it sucks (or doesn't suck enough, lol), which is why I want to do the catch-can to intake manifold vacuum method. I won't connect it without a can, though, because I want to keep the SC clean.

Quote:
Originally Posted by 03OrangeSVT View Post
Why dont you guys ask Tom how he does ALL of his PCV systems............
Don't need to... I've heard he normally runs two draft tubes on Foci... which is comforting, since none of his cars have had problems. I'm talking here about the right/best way, not just any way that works. I'm guessing he ran the draft tubes on your car & you never thought twice about why or if it mattered? He probably does that to keep the intakes clean, which is more important IMO than having a clean crankcase. Just know that you are choosing one over the other. If you want a compromise that keeps both clean, you'd have to install a catch-can/screen filter on the lower hose, then run it back to vacuum beneath your TB... which is what I plan to do.

I'd guess Tom uses hoses because they are cheap and easy. I see nothing wrong with that approach... if someone wants their crankcase clean, its up to them to bother getting a valve cover breather filter & a catch can for the crankcase vent hose. People pay Tom to build and tune their engines, not to fool around with catchcans and breather filters.
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Old 10-30-2008, 10:12 PM   #50
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Quote:
Originally Posted by iminhell View Post
^^Easy killer, or I'll have to lay the smack down (this is your warning).
Ya he is just trying to help,
what ever he said make sense as well,
I am just trying to intake more information.
03OrangeSVT is right as well.
draft will create certain vaccum as well as far as I know...
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