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Can you delete PCV on a turbo s2000?

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Old Mar 16, 2014 | 05:09 PM
  #1  
Saiko88's Avatar
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Default Can you delete PCV on a turbo s2000?

I was reading up and I saw that you can delete the PCV by plugging it and its only emission related, is this correct? I wanted to run it like this with a vented catch can.

Would this mess anything up with the car?
any help would be greatly appreciated

Thanks!
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Old Mar 16, 2014 | 06:50 PM
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Don't cap it. Run it to a catch can. You need to not cap it because it there to help ventilate the crankcase pressure.
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Old Mar 16, 2014 | 07:52 PM
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Originally Posted by riceball777
Don't cap it. Run it to a catch can. You need to not cap it because it there to help ventilate the crankcase pressure.
Oh okay so I run the PCV valve to a catch can and then plug the throttle body? the catch can has to be ventilated right? because I have the mishimoto can that does not have a vent.
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Old Mar 17, 2014 | 04:48 AM
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There are many ways to skin a cat when it comes to catch can setups.
- You can run the PCV port from the valve cover to the catch can, then from the catch can to the PCV port on the intake manifold.
- You can run the crankcase vent port from the valve cover to the catch can, then from the catch can to the crankcase vent port on the air intake elbow.
- You can run a dual catch can setup and do both of the ones above.
- You can buy a catch can with two inputs and two outputs and do both of the ones above.
- You can run both the PCV port and the crankcase vent port from the valve cover to the catch can and have the catch can vented to atmosphere via little air filter or a vent tube, then cap the ports on the intake manifold and air intake elbow.
- And so-on and so-forth.

I chose to run both valve cover ports to a single vented-to-atmosphere catch can and cap off the ports on the intake manifold and air intake elbow. As you mentioned, it is against emissions regulations to do it this way.
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Old Mar 17, 2014 | 04:49 AM
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If it isn't vented, run it from the pcv to the can to the intake manifold. Are you FI?
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Old Mar 17, 2014 | 05:33 AM
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You want a vented catch can if boosted.
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Old Mar 17, 2014 | 11:52 AM
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Originally Posted by CoolGuy094
There are many ways to skin a cat when it comes to catch can setups.
- You can run the PCV port from the valve cover to the catch can, then from the catch can to the PCV port on the intake manifold.
- You can run the crankcase vent port from the valve cover to the catch can, then from the catch can to the crankcase vent port on the air intake elbow.
- You can run a dual catch can setup and do both of the ones above.
- You can buy a catch can with two inputs and two outputs and do both of the ones above.
- You can run both the PCV port and the crankcase vent port from the valve cover to the catch can and have the catch can vented to atmosphere via little air filter or a vent tube, then cap the ports on the intake manifold and air intake elbow.
- And so-on and so-forth.

I chose to run both valve cover ports to a single vented-to-atmosphere catch can and cap off the ports on the intake manifold and air intake elbow. As you mentioned, it is against emissions regulations to do it this way.
Hey thanks for the great info! Yeah I'm going to run what you have. We don't have emissions in Colorado Springs so I should be all good!
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Old Mar 17, 2014 | 11:53 AM
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Originally Posted by Redline S2K
If it isn't vented, run it from the pcv to the can to the intake manifold. Are you FI?
Hey, Yes I am FI
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Old Mar 17, 2014 | 12:19 PM
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Originally Posted by Saiko88
Hey thanks for the great info! Yeah I'm going to run what you have. We don't have emissions in Colorado Springs so I should be all good!
I'm jealous.
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Old Mar 17, 2014 | 04:26 PM
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Originally Posted by Moddiction
You want a vented catch can if boosted.
I've been debating this myself and am not so sure.
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