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370z ARC Coolant & Oil Catch can installation

Hi guys, Recently bought one of these used from DPE’s car, but didn’t come with installation instructions. Anyone here can explain where and how the hoses should be connected? Thanks

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Old 07-26-2017, 12:03 AM   #1 (permalink)
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Default 370z ARC Coolant & Oil Catch can installation

Hi guys,

Recently bought one of these used from DPE’s car, but didn’t come with installation instructions. Anyone here can explain where and how the hoses should be connected?

Thanks a lot!

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Old 07-27-2017, 04:47 AM   #2 (permalink)
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Anyone?
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Old 07-27-2017, 09:27 AM   #3 (permalink)
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What kind of intake setup do you have?
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Old 07-27-2017, 10:22 AM   #4 (permalink)
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the cans get plumbed between the PCV valve and the intake manifold. You will see a hose linking the two in the OEM configuration.
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Old 07-27-2017, 10:38 AM   #5 (permalink)
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Quote:
Originally Posted by NorthStyle View Post
What kind of intake setup do you have?


AAM intakes.
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Old 07-27-2017, 03:14 PM   #6 (permalink)
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It's pretty much as Jayhovah said:
The two inner inlets/outlets (depending on who configures them) route back to the inlet nipples of the AAM intakes. The two outer inlets/outlets route back to the front outlets from the PCV valve on the engine; the two nipples on the front of the intake manifold are capped off along with the two outlets that the rubber lines run back to on either side of the engine.
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Old 07-27-2017, 03:43 PM   #7 (permalink)
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Quote:
Originally Posted by NorthStyle View Post
It's pretty much as Jayhovah said:
The two inner inlets/outlets (depending on who configures them) route back to the inlet nipples of the AAM intakes. The two outer inlets/outlets route back to the front outlets from the PCV valve on the engine; the two nipples on the front of the intake manifold are capped off along with the two outlets that the rubber lines run back to on either side of the engine.
Not exactly the configuration I was suggesting - are you sure this is correct?
If I am reading you correctly.. you are capping the fresh air inlets to the crankcase and also the PCV inlets to the intake manifold. I don't think this setup will vent the crankcase vapors because there is no vacuum source to draw the vapors out nor is there any fresh air to displace the vapors and keep the crankcase at atmospheric pressure.

I am suggesting the cans should be plumbed in series between the PCV valve outlets and the nipples on the intake manifold. When the throttle plates close and the manifold is in vacuum, the PCV valve will open and the crankcase will draw clean air from the intake and vent vapors through the catch cans (which should separate the junk out) and into the intake manifold.

That being said, I have never actually installed catch cans. This is just my understanding of the plumbing and how the system should work, so I could be wrong. I also know there are multiple ways to plumb catch cans in different configuration, the method I am suggesting here is just the one that makes the most sense to me.
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Old 08-03-2017, 02:40 AM   #8 (permalink)
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Thanks Jay!

Anyone else has the ARC OCC plumbed in? Please share, including photos
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Old 08-03-2017, 06:04 AM   #9 (permalink)
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I don't have them, but reading Jay's routing of hoses is correct for a N/A engine.
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Old 08-03-2017, 10:58 AM   #10 (permalink)
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Here is a picture of what I explained (not my car, but this is with the stock clear hosing provided with the ARC tank). I did have a mixup however and the hoses route to the rear ports, not the front. However, as I did mention, the two ports on the intake manifold are closed, as are the two front (I said rear previously) coming from the block...and I do own one, just saying.

However, you can route it however you choose.
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Old 08-03-2017, 12:38 PM   #11 (permalink)
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Quote:
Originally Posted by NorthStyle View Post
Here is a picture of what I explained (not my car, but this is with the stock clear hosing provided with the ARC tank). I did have a mixup however and the hoses route to the rear ports, not the front. However, as I did mention, the two ports on the intake manifold are closed, as are the two front (I said rear previously) coming from the block...and I do own one, just saying.

However, you can route it however you choose.
There seem to be many ways to route catch cans... but if the front crankcase inlets are capped in this picture, I don't really know how this is supposed to work? Not trying to give you a hard time, I just don't really understand....
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Old 08-04-2017, 10:09 AM   #12 (permalink)
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No worries, I didn't take it that way. As for the "why" I couldn't really explain as the instructions are completely in Japanese minus the pictures.

The way ARC has them supposed to be installed pretty much has you remove the outlet from the front of the crankcase that exits into the upper intake manifold and keeps the vacuum section that uses the intake itself. However, unlike the picture shown, for those of us with setups that don't have intake nipples (Admin Tuning intakes do not have this nor do most FI setups from what I've seen), the catch cans vent to the atmosphere.
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Old 08-04-2017, 12:09 PM   #13 (permalink)
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I see.. I guess the blowby itself works it's way out to the cans? On the TT kits it is routed to the intakes.. just not visible in pics because it's routed to the turbo inlet pipes since those going to the throttle body are pressurized. I need to add cans to my setup eventually but I'll route them the "traditional" way I described earlier most likely.

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Old 08-05-2017, 10:19 AM   #14 (permalink)
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I need dumb proof schematics LOL






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Old 08-05-2017, 11:12 AM   #15 (permalink)
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On an N/A engine & looking at your pictures,,,I would remove the red hoses between the 2pcv valves & front of intake.
Connect the 2 shorter black hoses to the intake & remove those nipples from longer outside black hoses & connect to pcv valves.
The tank is most likely baffled & has at least 1 oil drain.
Unless you see some arrows or other indication of flow...that is most logical way.
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