PCV/Oil Catch can setup on s13.4 valve cover - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Jarom717 · 04-17-2021, 08:46 PM

Hey guys I've been trying to research this for over an hour now and there doesn't seem to be a direct solution. Everyone seems to do it a little different. Just got a s13.4 valve cover back from touge factory and they welded 10AN fitting on all the vent points including PCV.
I didn't really understand the pcv before because otherwise I might have kept it. I need to know how to run my catch can now without a pcv. I basically have 4 openings that need to be plugged or connected. The 3 on valve cover and the one on back of engine block.

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Mikester · 04-18-2021, 08:17 AM

I can account for 3 of them:

Line from fitting on exhaust side of valve cover to hole in back of the block, line from exhaust side top of valve cover to your catch can, line from catch can to turbine inlet. As for the PCV, I have no clue why they’d do that, but they do make -10AN one-way check valves you can use to maintain the PCV.

Mike

Jarom717 · 04-18-2021, 11:55 AM

Quote:

Originally Posted by Mikester

I can account for 3 of them:

Line from fitting on exhaust side of valve cover to hole in back of the block, line from exhaust side top of valve cover to your catch can, line from catch can to turbine inlet. As for the PCV, I have no clue why they?d do that, but they do make -10AN one-way check valves you can use to maintain the PCV.

Mike

Yeah I just bought a radium pcv valve and some fittings to make it work. I saw some people run a 3rd open line from it to catch can but I'd rather be safe I think and keep a pcv valve there.

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jr_ss · 04-19-2021, 01:37 AM

Quote:

Originally Posted by Jarom717

Yeah I just bought a radium pcv valve and some fittings to make it work. I saw some people run a 3rd open line from it to catch can but I'd rather be safe I think and keep a pcv valve there.

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A lot of times the PCV is deleted altogether. Maybe they assume or it is standard practice and was missed in the details.

5t341tH · 04-19-2021, 09:23 PM

On mine I have the block one connected to the one above it. The right side one going into the catch can. And the pcv back into the intake manifold

Jarom717 · 04-19-2021, 10:53 PM

Quote:

Originally Posted by 5t341tH

On mine I have the block one connected to the one above it. The right side one going into the catch can. And the pcv back into the intake manifold

That's how it typically is when you have a pcv valve still. Do you have one? You can't really just plug the pcv side into the manifold without the actual valve otherwise your pressuruzing your crank case.

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jr_ss · 04-20-2021, 02:36 AM

Install an inline check valve or a Krank vent.

https://www.haydensm6.com/kvp.htm

Jarom717 · 04-20-2021, 04:49 AM

Quote:

Originally Posted by jr_ss

Install an inline check valve or a Krank vent.

https://www.haydensm6.com/kvp.htm

Already bought a radium one

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5t341tH · 04-20-2021, 11:09 AM

Quote:

Originally Posted by Jarom717

That's how it typically is when you have a pcv valve still. Do you have one? You can't really just plug the pcv side into the manifold without the actual valve otherwise your pressuruzing your crank case.

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Yea I am running a pcv. Previous owner of the cover welded on a female fitting of some sort and had a 10an fitting on there. Luckily it matched the pcv threads

TheRealSy90 · 04-28-2021, 09:52 AM

Honestly I don't run catch cans with the 13.4 valve cover.

04-17-2021, 08:46 PM	#1
Jarom717 Zilvia Member Join Date: Oct 2014 Location: Hawaii Posts: 194 Trader Rating: (1) Feedback Score: 1 reviews	PCV/Oil Catch can setup on s13.4 valve cover Hey guys I've been trying to research this for over an hour now and there doesn't seem to be a direct solution. Everyone seems to do it a little different. Just got a s13.4 valve cover back from touge factory and they welded 10AN fitting on all the vent points including PCV. I didn't really understand the pcv before because otherwise I might have kept it. I need to know how to run my catch can now without a pcv. I basically have 4 openings that need to be plugged or connected. The 3 on valve cover and the one on back of engine block. Sent from my SM-G973U1 using Tapatalk

04-18-2021, 08:17 AM	#2
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 52 Posts: 1,956 Trader Rating: (0) Feedback Score: 0 reviews	I can account for 3 of them: Line from fitting on exhaust side of valve cover to hole in back of the block, line from exhaust side top of valve cover to your catch can, line from catch can to turbine inlet. As for the PCV, I have no clue why they’d do that, but they do make -10AN one-way check valves you can use to maintain the PCV. Mike __________________

04-19-2021, 09:23 PM	#5
5t341tH Post Whore! Join Date: Jun 2006 Location: socal (Huntington Beach) Age: 35 Posts: 2,787 Trader Rating: (14) Feedback Score: 14 reviews	On mine I have the block one connected to the one above it. The right side one going into the catch can. And the pcv back into the intake manifold __________________ lexus baby

04-20-2021, 02:36 AM	#7
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,412 Trader Rating: (35) Feedback Score: 35 reviews	Install an inline check valve or a Krank vent. https://www.haydensm6.com/kvp.htm __________________ My SR20VET Does your VTC gear rattle in your S14/15 SR? PM me.