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B20 PCV system and catch can setup

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B20 PCV system and catch can setup

Old 12-31-2008, 02:17 AM
  #1  
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Default B20 PCV system and catch can setup

So I have done alot of research on the catch can setups and PCV system write-ups. Alot of write-ups that I see are converting over to catch can setups and venting the 2 plugs on the back of the block but only with big power cars. Is it even neccessary for low-to-mid range power? I running 7-8 pounds on a stock bottom end JDM b20. And also being that the b20 and 97-01 b18b's have no black breather box on the block just out of the middle of the valve cover, how would you run the valve cover side of a catch can setup. Could you just vent the two allen plug spots on the back of the block to a catch can and plug the Valve cover somehow? Or would it be better to run the catch can setup and leave the stock PCV setup on top. I just didn't know if it was really necessary for 7-8 pounds. I always read someone who used a Toyota Supra PCV valve that worked really good compared to the stock honda one...thanks anyone who can help kinda confused on this
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Old 12-31-2008, 03:55 AM
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Default Re: B20 PCV system and catch can setup

Originally Posted by D16Y8-Z6
11107-PK2-003 $6.27. These are the fittings.

90401-PR4-000 $1.85. These are just the washers for the fittings.

BTW these parts come on 98-01 Preludes.

To remove the B series fittings your gonna need a 14mm allen wrench.

Thank Joe for the info, these parts are super cheap.
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Old 12-31-2008, 06:39 PM
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Default Re: B20 PCV system and catch can setup

thanks good info

So what should I do with the stock PCV system in the middle of the valve cover? Anyone know how to plug that somehow? i guess I could just run a b18a valve cover but would rather keep the b20 VC if i can.
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Old 01-03-2009, 06:41 PM
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Default Re: B20 PCV system and catch can setup

Hot.
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Old 01-03-2009, 09:36 PM
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Default Re: B20 PCV system and catch can setup

my b20b catch can setup uses a machined fitting which is like the prelude parts setup to the bottom of the catch can, vc line goes one top port on my catch can and the other top port line goes to the ground for now until i hook it up pre turbo, for na i had it on the intake pipe
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Old 01-04-2009, 06:51 AM
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Default Re: B20 PCV system and catch can setup

PRE TURBO IS A NO NO IVE HAD IT LIKE TAHT ALL THE TIME BUT SOMONE SAYS OIL VAPOR LOWERS OCTANE AND YOU DONT WANT THAT
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