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-   -   Catch can noob question (http://www.the370z.com/engine-drivetrain/126381-catch-can-noob-question.html)

Buzzkill247 04-04-2018 09:27 AM

No. The back crankcase port on VQ motor is meant to intake METERED and filtered air from behind the MAF.
The front crankcase port is the blow by exhaust and by factory is routed to intake manifold - THIS is the one meant to go to the INTAKE of a catch can.

-ZS-Carpenter 04-05-2018 03:15 PM

Quote:

Originally Posted by Buzzkill247 (Post 3744509)
No. The back crankcase port on VQ motor is meant to intake METERED and filtered air from behind the MAF.
The front crankcase port is the blow by exhaust and by factory is routed to intake manifold - THIS is the one meant to go to the INTAKE of a catch can.

So your'e saying the Admin Tuning catch can is built wrong and doesn't function properly? hmmm...one of the top Z shops in the country or random guy on some forum......not sure who to go with here

Jayhovah 04-05-2018 03:19 PM

Quote:

Originally Posted by -ZS-Carpenter (Post 3744979)
So your'e saying the Admin Tuning catch can is built wrong and doesn't function properly? hmmm...one of the top Z shops in the country or random guy on some forum......not sure who to go with here

most likley you can go with both. There are like a zillion functional ways to plumb a catch can.

edit: for clarification - the Admin can vents the crankcase to atmosphere and deletes the PCV system...Buzzkill is describing closed loop catch can plumbing, which mirrors the factory routing but runs the dirty air through the can while preserving the PCV system. So - both sources are correct....

old guy 04-05-2018 05:05 PM

Is there any benefit to running catch cans on a stock system with no mods?

Now this is a NOOB question :bowrofl:

Jayhovah 04-05-2018 05:08 PM

Quote:

Originally Posted by old guy (Post 3744996)
Is there any benefit to running catch cans on a stock system with no mods?

Now this is a NOOB question :bowrofl:

Absolutely!

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Sway 04-05-2018 11:15 PM

http://i65.tinypic.com/zl7kg0.jpg

http://i68.tinypic.com/35d5n2b.jpg

Sooo... is mine not hooked up correctly then?
There used to be a single hose connecting where the blue and green marked hoses plug into, but now it has the two hoses with a baffled catch can in the middle.

Jayhovah 04-06-2018 06:31 AM

Quote:

Originally Posted by Sway (Post 3745112)
http://i65.tinypic.com/zl7kg0.jpg

http://i68.tinypic.com/35d5n2b.jpg

Sooo... is mine not hooked up correctly then?
There used to be a single hose connecting where the blue and green marked hoses plug into, but now it has the two hoses with a baffled catch can in the middle.

Doesn't look like it. Are both hoses connected to the intake manifold? If so, it's not doing anything (hard to tell). More importantly, what are the crankcase ports connected to?

Sent from my Nexus 6P using Tapatalk

-ZS-Carpenter 04-06-2018 02:45 PM

Quote:

Originally Posted by Jayhovah (Post 3744980)
both sources are correct....

So if you use your car as a DD or GT car where you are mostly in near closed throttle (pcv open) most of the time, what Sway is setting up will catch most of the blow by.

If it is raced as much as it is driven like a responsible person (lots of WOT, track days ect) then a full pcv delete is the better option to keep oil and gunk out of the intake.

Do i have that right?

Jayhovah 04-06-2018 03:00 PM

Quote:

Originally Posted by -ZS-Carpenter (Post 3745274)
So if you use your car as a DD or GT car where you are mostly in near closed throttle (pcv open) most of the time, what Sway is setting up will catch most of the blow by.

If it is raced as much as it is driven like a responsible person (lots of WOT, track days ect) then a full pcv delete is the better option to keep oil and gunk out of the intake.

Do i have that right?

I have no idea which is better... both methods should keep gunk out of your intake.

I dont really have any understanding of what Sway has done, based on his pictures... its hard to tell though.

-ZS-Carpenter 04-06-2018 04:59 PM

Quote:

Originally Posted by Jayhovah (Post 3745281)
based on his pictures... its hard to tell though.

Would like to see some better pics of that as well. Too small to see what he did


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