Yes Catch Cans Work
- Thread starter COPPERFX
- Start date
"LittleGagne"
Member
- Location
- Pot Falls
This is just for the guys on the fence about catch cans. Here's a shot of what I drained out of my Weapon-R non-baffled catch can! Enjoy!
Damnn
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AlohaRacing
Member
- Location
- San Diego
- Car
- 2006 FX35 AWD
Yep, my first mod was a homemade version with parts available @ home depot for like $10. I empty mine every couple months or so.
Interesting, please explain this catch can, and would my 09 FX35 benifit from one.
TIA
Edit: I found the info I needed. It is all in this thread for anyone else to read:
///9993&highlight=catch+diy
TIA
Edit: I found the info I needed. It is all in this thread for anyone else to read:
///9993&highlight=catch+diy
Last edited:
Before I installed my catch can I cleaned the upper and lower plenum just to make sure the oil catch can actually kept the oil from going into them.. After 2 months of using the oil catch can I pop the upper and lower plenum open and it was as clean as when I cleaned it.. So I'm pretty happy with it.
^^^Wow!
Looks like a project for me this winter to check out.
Looks like a project for me this winter to check out.
james9203
Member
- Location
- queens village
how does it work please pm me im new to this
- Location
- Dallas, TX
- Car
- 2007 FX35 RWD
Post #4.
Tamade
Member
- Location
- Los Angeles, CA
I would like to do this as well, seems like a worth add-on!
Step one by a decent oil catch can: $45-100 bucks (ie Greddy, Weapon-R, Cusco, Carbing, Saiku, ARC if ur a baller, or any other brand but not a POS).
Step two mount somewhere that you like.
Step three utilize the tubing that comes with it (i reccomend upgrading to high temp hose).
Step four connect one hose to the crankcase ventilation on the passenger side valve cover and the other end to to your catch can.
Step five connect the other hose to the plenum on the front of your engine (the copper color tube that is about 3 inches long.
Step six, clean up.
I know there is alot more technical jargon but this is enough info to make you dangerous.
Step two mount somewhere that you like.
Step three utilize the tubing that comes with it (i reccomend upgrading to high temp hose).
Step four connect one hose to the crankcase ventilation on the passenger side valve cover and the other end to to your catch can.
Step five connect the other hose to the plenum on the front of your engine (the copper color tube that is about 3 inches long.
Step six, clean up.
I know there is alot more technical jargon but this is enough info to make you dangerous.
threezero
Member
- Location
- Vansterdam
is there any diy catch can install for the hr? i don't know where everything is =\
any mounting point too where can i mount it without drilling any holes?
any mounting point too where can i mount it without drilling any holes?
Anybody interested in doing this just use the search feature - there are several threads that use different methods of catch cans. There are a lot of different ways you can set these up, but the easiest is as follows:
I would recommend TWO catch cans for all generations of FX - this would be the best way to catch the most blow-by. Install one can off each side of the valve cover.
For the DE motor, the passenger side valve cover PCV valve is easy to access but the driver side vent is tougher to reach - it is under the throttle body at the back of the engine bay and it also has a different size hose than the PCV valve side.
For the HR motor, take a look at your intake tubes. There is a small hose attached to the intake and it runs directly to the valve cover. You want the catch can installed in-line with that hose on BOTH sides.
If you do only one side, you will still get benefit and remove some contaminants, but the other side will still allow blow-by to enter your intake plenum.
As far as mounting places you are just going to have to find one once you have your can and mounting hardware so you know what you are working with. I did not have to drill new holes in the chassis - I was able to use existing mounting points.
Keep in mind that this is a nice-to-have mod, but definitely not required. Nissan obviously didn't think sucking in the blow-by was going to do any damage, but it does require that you clean out your intake two or three times over the lifetime of the car. With the catch can, a LOT less sludge will build up and cleaning shouldn't be required nearly as often. Just remember to empty that catch can!
I would recommend TWO catch cans for all generations of FX - this would be the best way to catch the most blow-by. Install one can off each side of the valve cover.
For the DE motor, the passenger side valve cover PCV valve is easy to access but the driver side vent is tougher to reach - it is under the throttle body at the back of the engine bay and it also has a different size hose than the PCV valve side.
For the HR motor, take a look at your intake tubes. There is a small hose attached to the intake and it runs directly to the valve cover. You want the catch can installed in-line with that hose on BOTH sides.
If you do only one side, you will still get benefit and remove some contaminants, but the other side will still allow blow-by to enter your intake plenum.
As far as mounting places you are just going to have to find one once you have your can and mounting hardware so you know what you are working with. I did not have to drill new holes in the chassis - I was able to use existing mounting points.
Keep in mind that this is a nice-to-have mod, but definitely not required. Nissan obviously didn't think sucking in the blow-by was going to do any damage, but it does require that you clean out your intake two or three times over the lifetime of the car. With the catch can, a LOT less sludge will build up and cleaning shouldn't be required nearly as often. Just remember to empty that catch can!
^^^good write up Jumbo, always willing to help out, Thanks, you are such an asset to this site 
"LittleGagne"
Member
- Location
- Pot Falls
would this work with the VK? the 45 engine? ..
Absolutely - and there are examples here on IS. Really OCCs work in most modern motors.
Quick explanation -
You have pistons that are surrounded by rings. These rings act as seals between the piston and the cylinder wall. Each ring has a gap in it, set to a very specific size, allowing a measured amount of blow-by gasses (air/fuel mixtures of partially combusted states and a little exhaust along with engine oil that lubricates the system) to pass through in a gas state. These gasses slip past the cylinders into the valve cover, where pressure builds and pushes out the valve cover vents. These are the things the catch can will collect. Most catch cans can't catch all the contaminants, but they will help a lot.
Most motors hook a vacuum line up to the valve cover so the blow-by is sucked back into the plenum and burned in the cylinders. On the way in, it will leave a trail of sludge (condensed blow-by). This is what you would be cleaning if you removed the upper plenum and flipped it over.
I think installing a catch can is pretty easy. On a scale of 1-10 DIY projects, this is about a 2 or a 3. You just want to have quality parts (not some eBay special) because you don't want leaks in the system. If you search around the net, people make their own all the time.
Quick explanation -
You have pistons that are surrounded by rings. These rings act as seals between the piston and the cylinder wall. Each ring has a gap in it, set to a very specific size, allowing a measured amount of blow-by gasses (air/fuel mixtures of partially combusted states and a little exhaust along with engine oil that lubricates the system) to pass through in a gas state. These gasses slip past the cylinders into the valve cover, where pressure builds and pushes out the valve cover vents. These are the things the catch can will collect. Most catch cans can't catch all the contaminants, but they will help a lot.
Most motors hook a vacuum line up to the valve cover so the blow-by is sucked back into the plenum and burned in the cylinders. On the way in, it will leave a trail of sludge (condensed blow-by). This is what you would be cleaning if you removed the upper plenum and flipped it over.
I think installing a catch can is pretty easy. On a scale of 1-10 DIY projects, this is about a 2 or a 3. You just want to have quality parts (not some eBay special) because you don't want leaks in the system. If you search around the net, people make their own all the time.
tay_fu300zxtt
Member
- Location
- DFW
I need a catch can!