Forced Induction and PCV valve question
08-18-2004, 04:19 AM
#1
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Forced Induction and PCV valve question
People have been saying a clogged pcv can lead to blown oil seals on the block which brought to my attention the issue with boost.
When the intake manifold sees boost, doesn't the pcv stay shut due to this positive pressure on the manifold side? Wouldn't this affect the performance of the pcv valve?
anyone have ideas on how to modify this system so it can open up in boost?
When the intake manifold sees boost, doesn't the pcv stay shut due to this positive pressure on the manifold side? Wouldn't this affect the performance of the pcv valve?
anyone have ideas on how to modify this system so it can open up in boost?
08-18-2004, 04:37 AM
#3
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Re: Forced Induction and PCV valve question (si2die4)
that is correct about the catch can, but im not going to run one 
but check this recent thread out about this topic, good info http://www.homemadeturbo.com/f...25485
but check this recent thread out about this topic, good info http://www.homemadeturbo.com/f...25485
08-18-2004, 05:04 AM
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Re: Forced Induction and PCV valve question (Curtis2kul)
Ya you don’t NEED a can! You just need a different setup W/O the stock pcv.
I already use exhaust gas to help draw out vapors. I personally do not recommend using just the morroso set up on the valve cover breather alone. This is because it used a pcv valve as well, on the exhaust nipple! This is so exhaust gasses don’t run up your line and into your motor. So what happens when it close's, you have no were for your vapors to go!
Also that has nothing to do with the pcv valve any way, it is ONLY for the valve cover port NOT the pcv system!
I already use exhaust gas to help draw out vapors. I personally do not recommend using just the morroso set up on the valve cover breather alone. This is because it used a pcv valve as well, on the exhaust nipple! This is so exhaust gasses don’t run up your line and into your motor. So what happens when it close's, you have no were for your vapors to go!
Also that has nothing to do with the pcv valve any way, it is ONLY for the valve cover port NOT the pcv system!
08-18-2004, 06:33 AM
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Re: Forced Induction and PCV valve question (Curtis2kul)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Curtis2kul »</TD></TR><TR><TD CLASS="quote">explain more</TD></TR></TABLE>
Please ask more! I am not going to write the **** up for you!
Please ask more! I am not going to write the **** up for you!
08-18-2004, 06:50 AM
#7
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Re: Forced Induction and PCV valve question (Curtis2kul)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Curtis2kul »</TD></TR><TR><TD CLASS="quote">that is correct about the catch can, but im not going to run one but check this recent thread out about this topic, good info http://www.homemadeturbo.com/f...25485 </TD></TR></TABLE>
the diagram looks nice but there is one issue I see.
the hose going from the vc to the intake sees slightly vacuum in an N/A application (which would make it work as pictured)
however the line from the pcv to the intake manfilds sees a stronger contant vacuum... I wonder if the same vacuum pressure would be applied to an intake side of the turbo
but check this recent thread out about this topic, good info http://www.homemadeturbo.com/f...25485 </TD></TR></TABLE>the diagram looks nice but there is one issue I see.
the hose going from the vc to the intake sees slightly vacuum in an N/A application (which would make it work as pictured)
however the line from the pcv to the intake manfilds sees a stronger contant vacuum... I wonder if the same vacuum pressure would be applied to an intake side of the turbo
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08-18-2004, 06:55 AM
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Re: Forced Induction and PCV valve question (igo4bmx)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by igo4bmx »</TD></TR><TR><TD CLASS="quote">I wonder if the same vacuum pressure would be applied to an intake side of the turbo</TD></TR></TABLE>
No it wont
You dont really NEED vacuum though. I belive he wanted you to look further down the page at the exhaust bung you weld in and connect the the VC breather.
No it wont
You dont really NEED vacuum though. I belive he wanted you to look further down the page at the exhaust bung you weld in and connect the the VC breather.
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