excellent, but since you've spent so much time working with the pcv system, i would like to direct your attention at this:

Could the posotive crankcase pressure be venting enough oil into my suction pipe that the oil is going through the motor and fouling my 02 sensor? Is this a common problem if the sensor is not heated? Thanks

https://honda-tech.com/zerothread?id=1195409

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Si Shane &raquo;</TD></TR><TR><TD CLASS="quote">excellent, but since you've spent so much time working with the pcv system, i would like to direct your attention at this:

Could the posotive crankcase pressure be venting enough oil into my suction pipe that the oil is going through the motor and fouling my 02 sensor? Is this a common problem if the sensor is not heated? Thanks

https://honda-tech.com/zerothread?id=1195409</TD></TR></TABLE>

Suction pipe? Please keep in mind that I have no idea what your setup is.

If you are referring to a slash-cut tube placed in your Intake (pre-turbo) to evacuate crankcase blowby, then NO. The tremendous amount of surface area found in an inter-cooler would catch these vapors and any remaining vapors would be consumed in the combustion process before being sent to your exhaust.

 

Good to hear, your assumtions are nothing but correct. Again, thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tchleung &raquo;</TD></TR><TR><TD CLASS="quote">well they are generlaly made to open in vacuum and close to prevent pressure gonig into crankcase. With that said. I wasn't sure if the pressures from teh crnakcase woudl be enoguh to push the valve open so I jsut bypassed it completely. less restrictions IMO.</TD></TR></TABLE>

I took my PCV valve off tonight to try to figure something out...

It looks to me that the PCV valve is a very simple ball type valve, when there is pressure from the crankcase the ball is pushed up and the vapors can vent, when pressure comes from the other side, the pressure pushes on the ball and the valve closes...

I can't really reach underneath my intake mani so I am going to find a fitting the same size as the PCV, plug the IM nipple, replace the PCV with a straight fitting and run a hose from that to the ground... I might try it both ways, running through the PCV and bypassing it to see if there is any differences...

I hope I can get something figured out!

 

Goodlcuk! You also ahve to remember that in stock configuration. Vacuum also pulls the valve open.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dasher &raquo;</TD></TR><TR><TD CLASS="quote">

ahhh... but their is a better, more reliable, and practically free method, and I have the data to back it up.

I should finishing putting the information together by Saturday to finally put an end to all these endless PCV threads once and for all.

P.S. -- The Endyn setup was used in a variety of the tests too for comparison. </TD></TR></TABLE>

get the info yet?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by staticchmbr &raquo;</TD></TR><TR><TD CLASS="quote">get the info yet?</TD></TR></TABLE>

All of it was posted last saturday....

https://honda-tech.com/zerothread?id=1199935

No need for anymore PCV threads....

 

instead of a catch can setup, can I just throw a filter on the valve cover, and take the line from the OEM PCV box from the IM and just run it to the ground? Basically there would be no vacumm to pull oil, but it would just vent out into the atmosphere.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1SlowSi &raquo;</TD></TR><TR><TD CLASS="quote">instead of a catch can setup, can I just throw a filter on the valve cover, and take the line from the OEM PCV box from the IM and just run it to the ground? Basically there would be no vacumm to pull oil, but it would just vent out into the atmosphere.</TD></TR></TABLE>

That's basically how I have mine set up... but I replaced the PCV valve with a 90deg 1/2" fitting, then ran a hose from the fitting to the ground... works fine so far

I've had it like this for about two weeks and I can still see through the hose...

 

i thought that the PCV valve was on the IM? if you ran a line from there to the ground that would be a hell of a vacuum leak

 

The PCV valve is technically "on the IM" but not really...

It's placed between the first and second runners and has a hose from it to a nipple on the IM which provides the vacuum source... I of course plugged that hole and removed that hose...

 

i know that my other way isnt the RIGHT way but it works. But how about this..

-plug the breather chamber hole on the block with a Z10 plug
-Use a fitting with a nipple for the plug thats above the plugged hole
INSTALL CATCH CAN
-run a line from the valve cover to the catch can
-run a line from the nipple on the back of the block to the catch can
-Run a line from the catch can to the exhaust to create a steady vacumm.

Now.. will this create TOO much of a vacuum? and isnt this the correct way to do it when boosted?

Its either this way or back to my original way. the only difference is vacuum.