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Catch can noob question

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

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Old 04-04-2018, 10:27 AM   #16 (permalink)
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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.
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Old 04-05-2018, 04:15 PM   #17 (permalink)
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Originally Posted by Buzzkill247 View Post
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
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Old 04-05-2018, 04:19 PM   #18 (permalink)
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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....
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Old 04-05-2018, 06:05 PM   #19 (permalink)
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Is there any benefit to running catch cans on a stock system with no mods?

Now this is a NOOB question
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Old 04-05-2018, 06:08 PM   #20 (permalink)
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Is there any benefit to running catch cans on a stock system with no mods?

Now this is a NOOB question
Absolutely!

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Old 04-06-2018, 12:15 AM   #21 (permalink)
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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.
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Old 04-06-2018, 07:31 AM   #22 (permalink)
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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?

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Old 04-06-2018, 03:45 PM   #23 (permalink)
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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?
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Old 04-06-2018, 04:00 PM   #24 (permalink)
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Originally Posted by -ZS-Carpenter View Post
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.
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Old 04-06-2018, 05:59 PM   #25 (permalink)
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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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