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Old 12-14-2011, 11:06 AM   #251
ogintheback
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^thank you for that info. Maybe I had better stay on the "beaten path". Anyone have thoughts on this one?
http://prosportgauges.com/oil-catch-can-.aspx
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Old 12-14-2011, 03:43 PM   #252
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I think I've found a good way to vent the catch cans without having to resort to using exhaust scavenging.

First off you need an oil catch can with 3-4 ports, obviously on hybrids and 2.5L engines keep the un-baffled vents connected to each other. connect the baffled head vents together into the catch can, run a single line from the baffled vent on the crankcase into the catch can.

Now this is where it gets different if using a 3 port catch can have a T-fitting on the top of the catch can, one side goes to the pcv valve as normal, the other side goes to a check valve that opens when boost is on the catch can side, the other side of the check valve is connected to an air filter so it is filtered out into the atmosphere. In a 4 port can you will obviously just run these two exit ports separately. Alternatively you can run the atmospherically dumped port back into the exhaust with a weld in fitting to create a venturi effect.
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Old 12-23-2011, 05:52 PM   #253
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Quote:
Originally Posted by ogintheback View Post
^thank you for that info. Maybe I had better stay on the "beaten path". Anyone have thoughts on this one?
http://prosportgauges.com/oil-catch-can-.aspx
I run two of those...no issues and they work.
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Old 01-05-2012, 09:46 PM   #254
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I've been searching the introwebz for longer than it takes to install 10 catch cans. Can anyone just post a simple diagram or picture of proper before and after pics? Ones that simply explain what hoses need to be removed, and what needs to be connected to the new catch can please? I have a 2002 wrx and my catch can looks like the one below. Please help!


Thank you,
Frustrated Person

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Old 01-06-2012, 03:40 PM   #255
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I'll post a link later when I get home but aside from that look at my post above
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Old 01-06-2012, 06:35 PM   #256
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Quote:
Originally Posted by sorrowfulkiller
I'll post a link later when I get home but aside from that look at my post above
Thank you! I just need a visual. Most links/were old and didn't work or have been deleted.
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Old 01-07-2012, 09:08 AM   #257
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Quote:
Originally Posted by 2002Dubx

Thank you! I just need a visual. Most links/were old and didn't work or have been deleted.
If you look up diy hyundai sonata catch can on google there's a good diy to make the can you have function better.
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Old 01-08-2012, 10:02 PM   #258
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Please note that many catch cans sold in the market do not have filter inside, which makes it pretty much useless.
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Old 01-09-2012, 01:11 AM   #259
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Quote:
Originally Posted by txl146 View Post
Please note that many catch cans sold in the market do not have filter inside, which makes it pretty much useless.
it doesn't even really need a filter...as long as it has some kind of baffle to separate the air from the oil vapor. take the peterson or element (same product just different sticker on it) for example. it works great, and all it uses is some baffling using pieces of aluminum...but you are completely correct that the cans with nothing in there do close to nothing, especially since they typically only use 3/8 inch hoses.
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Old 01-24-2012, 07:44 PM   #260
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It's nice when you can add as much media as you want.

http://store.radiumauto.com/index.ph...id=15&parent=5



But too much can cause a flow restriction.
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Old 02-06-2012, 07:20 AM   #261
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The center port on the 2.5 block is unbaffled. This means raw oil (not oil vapor) is coming out of that port. You don't want to run that into a catch can unless you want to drain it every other day or do. I just went through all of this.

The proper way so solve the hybrid setup is to weld an additional bung to each valve cover and run the center port through a "T" to each valve cover. The pcv port goes to the catch can then back to the oem ports on the valve cover.

Check my build thread for some pics of how I solved mine.
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Old 03-09-2012, 12:02 PM   #262
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How often I should I drain my catch cans?
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Old 03-09-2012, 12:06 PM   #263
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Quote:
Originally Posted by SubaruWrxNewb View Post
How often I should I drain my catch cans?
Do you have a level indicator? UNless your motors going through oil like crazy, you shouldnt have to drain but once a year.
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Old 04-09-2012, 10:00 AM   #264
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I just read every post. Anybody have a schematic of a dual catch can setup without an inlet?
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Old 04-09-2012, 11:30 AM   #265
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Quote:
Originally Posted by wgr73 View Post
I just read every post. Anybody have a schematic of a dual catch can setup without an inlet?
not sure if what you mean by "without an inlet", but if you mean without lines going to the turbo inlet then here ya go (found this on page 3)...basically take the two places on the inlet where those lines would have connected and cap them off. then the catch cans will just vent to atmosphere...

Quote:
Originally Posted by wrxbox View Post



if you mean without an after market inlet, then it would be identical connections to this picture.

fyi, some of the flow direction arrows on this image are incorrect, but the routing of all the lines is correct and that is why i used it.
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Old 04-24-2012, 11:32 AM   #266
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Without an inlet, I meant filter directly on the turbo. Thanks! Sure ya that would work. I was trying to make sense of that setup.
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Old 04-24-2012, 11:55 AM   #267
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Quote:
Originally Posted by 5lipstream View Post
The center port on the 2.5 block is unbaffled. This means raw oil (not oil vapor) is coming out of that port. You don't want to run that into a catch can unless you want to drain it every other day or do. I just went through all of this.

The proper way so solve the hybrid setup is to weld an additional bung to each valve cover and run the center port through a "T" to each valve cover. The pcv port goes to the catch can then back to the oem ports on the valve cover.

Check my build thread for some pics of how I solved mine.
where's the thread? can't find it
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Old 04-25-2012, 08:47 AM   #268
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How to properly filter your crankcase and cylinder head evacuation system :

http://www.moroso.com/catalog/images/85484_inst.pdf

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Old 04-25-2012, 09:59 AM   #269
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Quote:
Originally Posted by Prosport Gauges View Post
Do you have a level indicator? UNless your motors going through oil like crazy, you shouldnt have to drain but once a year.
This is not correct, every engine is different, some evacuate moderate amounts of vapor and some very little. Your cans should be drained on a regular basis especially if the car is seeing track time. If its a modified street car it depends on how much fuel blow by, oil vapor and condensation is circulating in the engine. The design of your catch can also comes in to play. Lets look at it this way, if the catch can is designed simply for ventilation it will most likely require less draining, if its a purpose built product it will require much more attention because it is going to be separating all gasses that are passed thru it and will yield much higher collection rates.
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Old 10-05-2012, 12:47 AM   #270
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Sorry if this was already asked somewhere but I did not see this anywhere on the first page of this FAQ. Besides keeping things oil free what are the power gains if any from keeping oil out of the system? And just how much can it lower effective octane rating? I understand it will help the intercooler perform better and lower the charge temperature. I would also think all of these points have an additive effect. I understand that all of this depends on a lot of variables. But has any of this been quantified at all? At least some ballpark range? Best/worst case scenario? What about an otherwise stock car?
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Old 10-05-2012, 11:29 AM   #271
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Quote:
Originally Posted by 0BlueSTi4 View Post
Sorry if this was already asked somewhere but I did not see this anywhere on the first page of this FAQ. Besides keeping things oil free what are the power gains if any from keeping oil out of the system? And just how much can it lower effective octane rating? I understand it will help the intercooler perform better and lower the charge temperature. I would also think all of these points have an additive effect. I understand that all of this depends on a lot of variables. But has any of this been quantified at all? At least some ballpark range? Best/worst case scenario? What about an otherwise stock car?
Actually this has zero impact on Intercooler performance. The objective is to prevent crankcase and valvetrain oil vapor from re-entering the intake tract and lowering the effective octane rating of the combustion charge. It's unlikely the effect can be quantified, the objective is not necessarily to "increase performance" but to prevent detonation.

At the very least it's a "good idea" for the general health of your engine. At best you're maintaining an octane rating as close as advertised to the fuel you're running.
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Old 10-05-2012, 05:11 PM   #272
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Quote:
Originally Posted by mechatricity

Actually this has zero impact on Intercooler performance. The objective is to prevent crankcase and valvetrain oil vapor from re-entering the intake tract and lowering the effective octane rating of the combustion charge. It's unlikely the effect can be quantified, the objective is not necessarily to "increase performance" but to prevent detonation.

At the very least it's a "good idea" for the general health of your engine. At best you're maintaining an octane rating as close as advertised to the fuel you're running.

And you know this how? I'll just refute your answer by quoting directly from this FAQ:

"
2) You've got an intercooler- by definition an intercooler is part of your intake tract, and It's generally agreed that an intercooler which is internally coated with oil won't be as effective as one that's clean.
"

Please, somebody that has something valid to contribute and has at least read this FAQ.
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Old 03-01-2013, 08:19 PM   #273
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Read on the first page that to do it properly ypu need to catch cans. One for each different way of installing them.

Question: can i replace 2 seperate catch cans with one 4port hyperflow can?
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Old 03-02-2013, 01:17 AM   #274
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Easiest way to run it is below. It's not all that hard really.



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Old 03-03-2013, 01:37 AM   #275
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Quote:
Originally Posted by TonyDavies View Post
Read on the first page that to do it properly ypu need to catch cans. One for each different way of installing them.

Question: can i replace 2 seperate catch cans with one 4port hyperflow can?
Quote:
Originally Posted by 2002Dubx View Post
Easiest way to run it is below. It's not all that hard really.




do NOT confuse and/or mix up the 2.0 and 2.5 motors here

they ARE DIFFERENT
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