Quote:
Originally Posted by mrg666
When there is a catch can, it is recommended to install a check valve between the catch can and intake manifold (to block outward air flow from intake manifold). You can leave the stock PCV valve in place in this case. It will not be functional. See boomba check valve. |
Hold up!!!
Quote:
Originally Posted by Irace86.2.0
So you are saying to not switch to the WRX valve? Why was this valve even suggested? Is it because with FI there is more pressure, so the WRX valve is designed around that pressure level?
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On a WRX the manifold is pressurised, obviously. However I would check the Harrop and the setup for the breathers. Most of the PD blowers put the PCV lines on the vacuum side of the blower (pre-compressor) which means that no change in valve is required as you're not pressurising the system. This is the way it is on the Sprintex.