DIY Two Way PCV System How-To (HoMedepoT style)
05-19-2006, 01:24 AM
#73
0.0 BAR
Join Date: Apr 2006
Posts: 3
Re: DIY Two Way PCV System How-To (HoMedepoT style)
so will ****'s setup work? and what do you mean by reverseing the PCV valve?(****). and do you have a picture of the filter, i went to homedepot and there was only one filter there. it was kinda big.
- draconx
- draconx
06-02-2006, 06:58 PM
#74
0.0 BAR
Join Date: May 2006
Posts: 34
Re: DIY Two Way PCV System How-To (HoMedepoT style)
Ok I think I understand it all now. Here is the setup I am planning on doing. I know it is not ideal cause it does not incorporate a vacuum under boost but it still allows the crank to vent.
Is this better than nothing?
06-02-2006, 07:16 PM
#75
Guest
Posts: n/a
Re: DIY Two Way PCV System How-To (HoMedepoT style)
Originally Posted by vegaskurt
Ok I think I understand it all now. Here is the setup I am planning on doing. I know it is not ideal cause it does not incorporate a vacuum under boost but it still allows the crank to vent.
Is this better than nothing?
Is this better than nothing?
06-15-2006, 11:38 AM
#76
1.5 BAR
Join Date: Aug 2003
Posts: 1,341
Re: DIY Two Way PCV System How-To (HoMedepoT style)
Originally Posted by civic_16s
Ok. Here is my current (and very simple) setup. I don't have pre intake pipe (filter directly on compressor inlet), so I do that.
There isn't PCV valve anymore.
Please comment ...
There isn't PCV valve anymore.
Please comment ...
06-19-2006, 03:49 PM
#77
1.0 BAR
Join Date: May 2006
Posts: 295
Re: DIY Two Way PCV System How-To (HoMedepoT style)
any comments on this setup??
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here's how you install it:
or like this:
I made this catch can with a 7 inch long 2" id pvc tube.
It cost $1.30 at home depot, they sell it by the foot if you don't wanna buy the 10ft tube they'll cut it for you.
The top and bottom are caps for 2" pvc tube .88 each.
the fittings are the small vacuume fittings for the oil viewer but i had some and didn't feel like buying 90 degree vacuume fittings so i just cut 2 Ts' and plugged the hole with jb weld.
As you can see I drilled a hole at the bottom of the container after I glued the bottom cap to the longer tube with some jb weld, not a whole lot, just a light film around the inside of the cap, not the tube.
Then I measured how much of the clear plastic drinking water tube I needed after I installed and glued the 2 90 deg. fittings. Put glue in the holes you drilled in the pvc tube for the fittings so there's something in there to seal it, and glue around the outside hole too.
For the top I just drilled one hole 3/8" and trimmed it some so the 3/8" to 1/4" T would fit. jb weld that in there too for a good seal.
oh, all I paid for this was .88 x 2 for the caps and 1.30 for the pvc tube. and you can never have too much jb weld so I bought some of that too $3.99 I think it was? plus the fittings that I already had, along with the hoses that I had.
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-------------------------------------------------
here's how you install it:
or like this:
I made this catch can with a 7 inch long 2" id pvc tube.
It cost $1.30 at home depot, they sell it by the foot if you don't wanna buy the 10ft tube they'll cut it for you.
The top and bottom are caps for 2" pvc tube .88 each.
the fittings are the small vacuume fittings for the oil viewer but i had some and didn't feel like buying 90 degree vacuume fittings so i just cut 2 Ts' and plugged the hole with jb weld.
As you can see I drilled a hole at the bottom of the container after I glued the bottom cap to the longer tube with some jb weld, not a whole lot, just a light film around the inside of the cap, not the tube.
Then I measured how much of the clear plastic drinking water tube I needed after I installed and glued the 2 90 deg. fittings. Put glue in the holes you drilled in the pvc tube for the fittings so there's something in there to seal it, and glue around the outside hole too.
For the top I just drilled one hole 3/8" and trimmed it some so the 3/8" to 1/4" T would fit. jb weld that in there too for a good seal.
oh, all I paid for this was .88 x 2 for the caps and 1.30 for the pvc tube. and you can never have too much jb weld so I bought some of that too $3.99 I think it was? plus the fittings that I already had, along with the hoses that I had.
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06-19-2006, 05:40 PM
#78
3.0 BAR
Join Date: Oct 2005
Posts: 3,450
Re: DIY Two Way PCV System How-To (HoMedepoT style)
Reaaallly, you dont neeed a vaccum source. If the engine can push all the ---- it wants out on its own, you'll be ok. 0 restriction will do the trick for budget setups. Only ballers need ~12hg of vaccum, which afaik is ideal.
07-08-2006, 11:31 AM
#79
0.5 BAR
Join Date: Feb 2004
Posts: 126
Re: DIY Two Way PCV System How-To (HoMedepoT style)
This was my setup I ran according to your ideas for some month.
Now i removed the valve cover filter and T-ed it into the line between catch can and "black box". The only difference i have noticed is a bit more oil smell in cabin.
Now i removed the valve cover filter and T-ed it into the line between catch can and "black box". The only difference i have noticed is a bit more oil smell in cabin.
07-08-2006, 02:08 PM
#80
0.5 BAR
Join Date: Jun 2006
Posts: 132
Re: DIY Two Way PCV System How-To (HoMedepoT style)
I have the backcut slash (bertoulli) method on my car. Works great. I have a sealed catchcan coming off the block. Breather on my valvecover (stock location) and a nipple welded onto my valvecover, behind the baffle, running to a 1way check valve to the backcut slash tube. Runs much better, but I do smoke occasionaly when getting on it. Not a big deal, just hard for some people to understand that my car is not burning oil-thats its actually supposed to be that way.
My buddy and I experimented with the slashcut tube. I had bought one from Moroso (like $10) and than noticed how easy it would be to make. Moroso has an extra lil slit on the backside of the angled cut. We put the one we made w/o the slit, and than put the Moroso one back in. We didn't notice a thing, no tests though. Just go to a plumbing/heating supply store and get a 6" section of black iron pipe and cut a 45degree cut in it. $2 instead of $10
Heres a pic of how the setup works. If anyone wants actual pics if they think it might help them out let me know.
Note: You need a one way check valve inline with the slashcut tube. You can use the 1 way check valves that are inline with the brake booster, just grab a few from the junkyard.
You can't use a slashcut tube with a vented catchcan either because you wont be creating and pulling vaccuum out of the engine, you will be pulling it from the breather can.
****Stinkyfeet****
Your catchcan looks great, but your setup is all wrong. With the slashcut tube you want to be pulling straight from your engine. There are 2 ways to do this, either putting the tube in your exhaust (which proves to get more vacuum but will make your car burn a lil bit) or preturbo intake tube. You can go for the stock rear nipple or its best to weld a nipple on to the front (all i know is b-series have a baffle up front, DO NOT weld in a nipple if it is not hidden by an internal oil baffle!!!).
You are making the slashcut tube work hard and waste some vacuum its creating by having to pull out all the extra air inside the catchcan, and possibly oil. If the catchcan is full you are going to be pulling oil straight into your turbo
Also on the other setup it looks as if you are pushing air into the valvecover....You are adding pressure, that is what you are trying to eliminate.
My buddy and I experimented with the slashcut tube. I had bought one from Moroso (like $10) and than noticed how easy it would be to make. Moroso has an extra lil slit on the backside of the angled cut. We put the one we made w/o the slit, and than put the Moroso one back in. We didn't notice a thing, no tests though. Just go to a plumbing/heating supply store and get a 6" section of black iron pipe and cut a 45degree cut in it. $2 instead of $10
Heres a pic of how the setup works. If anyone wants actual pics if they think it might help them out let me know.
Note: You need a one way check valve inline with the slashcut tube. You can use the 1 way check valves that are inline with the brake booster, just grab a few from the junkyard.
You can't use a slashcut tube with a vented catchcan either because you wont be creating and pulling vaccuum out of the engine, you will be pulling it from the breather can.
****Stinkyfeet****
Your catchcan looks great, but your setup is all wrong. With the slashcut tube you want to be pulling straight from your engine. There are 2 ways to do this, either putting the tube in your exhaust (which proves to get more vacuum but will make your car burn a lil bit) or preturbo intake tube. You can go for the stock rear nipple or its best to weld a nipple on to the front (all i know is b-series have a baffle up front, DO NOT weld in a nipple if it is not hidden by an internal oil baffle!!!).
You are making the slashcut tube work hard and waste some vacuum its creating by having to pull out all the extra air inside the catchcan, and possibly oil. If the catchcan is full you are going to be pulling oil straight into your turbo
Also on the other setup it looks as if you are pushing air into the valvecover....You are adding pressure, that is what you are trying to eliminate.
