Quote:
Originally Posted by Irace86.2.0
The guy I’m buying my Harrop SC from said he never did the WRX PCV valve swap, but he said it was suggested, I believe by Neil at the Racers Line, but he was unsure about how a catch can would effect things. Would retaining higher pressures effect boost, power or be risky on the engine such that the WRX PCV valve relieves more pressure?
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From my understanding is the WRX PCV had a check valve to prevent manifold pressure pressurising the crank case. If your blower connections on are pre-compressor then they will be in vacuum and there is no difference to how it is NA. @
mrg666 runs a centrifugal system where the OEM intake manifold is used so when in boost the PCV hoses are pressurised from the supercharger. I would suggest that the Harrop is like the Sprintex, it'll be obvious as the brake booster line will be connected to the same location.