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Took off my Injen intake last weekend and saw something I didn't like.

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Old Sep 18, 2003 | 08:57 AM
  #21  
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where does it hook up??? I have an Injen CAI...
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Old Sep 18, 2003 | 11:49 AM
  #22  
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Does oil catch can really take some hp away? I don't recall hearing that before....
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Old Sep 18, 2003 | 12:33 PM
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I dont see in anyway an oil catch can taking away hp. all it does is catch oil from the breather hose off the intake.
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Old Sep 18, 2003 | 07:47 PM
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As posted earlier....How does it hook up (Injen)
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Old Sep 19, 2003 | 05:15 AM
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if you have the injen intake, or any other intake for that matter, hook up is simple.

The black hose that comes off the back of the engine where you attached the little inline filter and hose which in turn went straight into the intake fitting. Take off the hose that came with your intake. With the oil catch can they will provide two hoses, basically an in and an out hose. Connect one end to the hose coming off the back of the motor, I left the inline filter supplied by injen and conected the hosefrom my catch can to the other end of the filter. That hose then runs into your catch can (In hose). Then run the other hose off the catch can, (Out hose) and connect it to the fitting on your intake. Thats it very simple.

If anythings not clear, let me know.
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Old Sep 19, 2003 | 06:05 AM
  #26  
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Default Re: Took off my Injen intake last weekend and saw something I didn't like.

Originally posted by Zaphod 350z
I removed the pipe just after the intake plenum and took a peek inside. There was a lot of dirt and oil stains where the PCV hose comes into the intake. By a lot I mean I could see it and it's more than I'd like to think about going directly into my throttle body. I'm definitely considering installing one of these: http://www.nipponpower.com/accessori..._catchcan.html
Correct me if I'm wrong, but those deposites are a direct result of the exhaust gasses being routed back into the engine, right? You would have the same result if you were running the stock intake, right? The notion of a catch can sounds better for the engine, but the original scenario is how it was designed to be anyway.
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Old Sep 19, 2003 | 06:20 AM
  #27  
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Can someone post a picture of where the hoses connect?
Thanks.
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Old Sep 19, 2003 | 07:13 AM
  #28  
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I have a catch can installed too, but mine is not installed on the driver side rocker cover. There are two PCV valves one on each rocker cover, the passenger side PCV goes into the front of the intake manifold. This is where i have mine installed, so the question is should there be a catch can for both PCV valves?
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Old Sep 19, 2003 | 08:35 AM
  #29  
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there are 2??? humm, I'll have to look closer, I never noticed that.
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Old Sep 19, 2003 | 01:29 PM
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So whats the bottom line? If I get any type of intake, I have to get an oil catch can?
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Old Sep 19, 2003 | 02:15 PM
  #31  
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This post seems to have turned out to be one of those rare, great informational posts. I've never heard of, nor thought about oil and "sludge" in the intake system - (possibly attributed to an aftermarket CAI.) No one else has ever mentioned this problem or installing a catch can to remedy it in any of the CAI posts I've read. Good info. Moog - you can looks great...where'd it come from? (blue tubes and all)
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Old Sep 19, 2003 | 03:35 PM
  #32  
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Originally posted by Corsa999
This post seems to have turned out to be one of those rare, great informational posts. I've never heard of, nor thought about oil and "sludge" in the intake system - (possibly attributed to an aftermarket CAI.) No one else has ever mentioned this problem or installing a catch can to remedy it in any of the CAI posts I've read. Good info. Moog - you can looks great...where'd it come from? (blue tubes and all)
Got the catch can from Pro-1 Performance. They're a wholesale distributor, and my friend works sales there. The owner has a Diamond graphite g35 coupe, and the other owner has a ppw 350Z w/ 19" gold volk sf-challenges.
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Old Oct 12, 2003 | 06:36 PM
  #33  
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So does the Z need one or two catch cans?
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Old Oct 12, 2003 | 07:02 PM
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stock intake box is best...

leave it on.. cut a hole in your bumper...

i want a mines intake scoop...
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Old Oct 14, 2003 | 07:45 PM
  #35  
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Anyone have pics of a catch can (Greedy) installed on their Z. Where would you attach it to?
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Old Oct 14, 2003 | 10:02 PM
  #36  
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I have gotten myself a Greddy Oil Catch Tank.

But I am deciding whether to plumb the outlet hose back into the intake. Or like what some people does..leave it vented into the atmosphere.
What effects or benefit will there be if it is not connected back to the intake?
My impression is, if it is left open, I might as well not need a catch tank and simply run a hose to the bottom of the car and splatter all the oil gunk onto the road.
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Old Oct 15, 2003 | 12:15 AM
  #37  
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Originally posted by KONVERTER
stock intake box is best...

leave it on.. cut a hole in your bumper...

i want a mines intake scoop...
I dont think its the changing of intakes that makes a difference. I think there is a tube going from the crankcase back to the intake for epa reasons to be sure that pollutants from the crankcase are broken down.

Why cant we just plug that hole or even simpler just take it out of the intake and let it vent whereever?
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Old Oct 15, 2003 | 05:49 AM
  #38  
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Default Catch Can

I have the stock air intake and get oil into the intake as well. I am getting oil pooling in the intake mainfold also after AUTOX. I have not been able to determine whether it is coming from the PCV valve route or from "vent tube" located on the other rocker cover as per the FSM.

There is only one PCV valve as per the FSM which is on the passenger side rocker cover. The other rocker cover only has a vent tube that goes into the intake tubing right after the bellows section. If you are seeing oil from this connection then it is due to high RPM load conditions and you need a catch can on that connection. According to the FSM this vent tube normally allows fresh intake air to be drawn into the crankcase under normal load. But under high load the flow can reverse and crank case gases (liquids too I guess) can enter from the crankcase into the intake path. Check out the PCV system in the FSM.

I am intalling my catch can on the "vent tube" as it called (the one right after the bellows section on the intake) to start with and see what happens. If this doesn't totally fix the oil problem then we will need two catch cans or something like that.

Also, simply putting a vented filter setup on the PCV valve can be bad. Under normal conditions the PCV valve allows a slight vacuum to be pulled on the crankcase. However if you simply vent it to atmosphere you can cause a pressure build up in the crankcase. Not good.
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Old Oct 15, 2003 | 10:43 AM
  #39  
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Did you get the 9mm or 15mm tube?
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Old Oct 15, 2003 | 10:53 AM
  #40  
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So is anyone going to post pics of the actual install?
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