I only bought one, car has a Vortech V3 on it. What side of the motor do you place the catch can on?
I've been running the JPC breathers on both sides with the procharger and don't have any issues. I know procharger tells you to cap the passenger side valve cover but I don't really understand why. Even my tuner, Lund, questioned it. First I tried running a UPR catch can (the original design) on the drivers side, hardly collected anything. Switched to Bob's catch can, same result, no liquid, just a slight residue on the bottom of the can. Then I tried UPR's catch can specifically designed for prochargers. No blow by was caught with this can either. That's when I decided to say F*ck it and go breathers. Maybe its because I don't drive my car enough but I was running the UPR procharger catch can while doing 3 back to back dyno pulls and still now measurable oil was collected. The only time I noticed the cans collecting oil was when the temperature was low, like below 50 degrees. And even then it was more water than oil. Maybe my engine is just different in some way. Before I was boosted I was running a JLT catch can on the Passenger side and it collected a decent amount of blow by.
Hope I'm not taking this too far off topic but it sort of relates to my question. I have a Paxton car with breathers on both sides. Passenger side I never see anything but the driver side has a good amount of oil spray out of the breather. Every few weeks I'll go and wipe oil off my valve cover. Is that a problem?