Chris@FsP

iTrader: (4)

All nipples are molded into the valve covers.

Z1 Performance

iTrader: (564)

yep I just looked at mine

ok so I need some guidance from the guys who have done this - keeping in mind my car is NA

I really want to use AN's and not standard vacuum hose. Can anyone think of a clean way to do this, preferably without removing the valvecovers (since I literally just did new gaskets a couple thousand miles ago and I'd hate to have to get new ones again)? Passenger side is easy since pcv unscrews and I can get a fitting to thread in it's place

I'll just leave the crossover between the 2 valvecovers with the stock hose, can't see it anyway

Chris@FsP

iTrader: (4)

There is no good way to add an AN fitting to the drivers side without pulling the cover and cutting off the nipple, and drilling/tapping a larger hole.

BTW, I have reused my old valve cover gaskets for years with no problems, at least on my personal car. For customers I always use new.

Z1 Performance

iTrader: (564)

gotcha, thanks Chris

I had a valvecover leak on my passenger side that just got fixed, so I don't really feel like risking it again I'll figure something out and post here

str8dum1

iTrader: (11)

here's what i did.


i'm goin to just run a breather on the other side of the catch can instead of a hose and mount the catch can down low by the frame rail. Allow plenty of fresh air to keep away the fumes.

350z 6spd

iTrader: (9)

Anybody know where to get check valves with 5/8" barbs?

rcdash

iTrader: (18)

You can get all sorts of couplers at fastfittings.com. I use only 3/8" hose barb check valves.

midz350

iTrader: (4)

Chris, can you please draw a diagram for your setup? its the HR shop car right?

I have a HR and the DE's drawing here is messing with my head .

Chris@FsP

iTrader: (4)

I suck at Paint, so here is the best I came up with. Both the PCV valve and the drivers side breather have been drilled out.

midz350

iTrader: (4)

Thanks.

specialist

iTrader: (1)

insn't that k&n Filter legal? or you will get a big ticket?

4SHIZZIL

iTrader: (10)

i grabed a longblock that had been sitting or about 6 months. after the vortec hit it, it shot the effing dipstick out and almost took out a few patrons watching the run.

removed the california emission bs PCV system all together, install catch can...cranked up boost and timing, she ran great after that.

After 6psi the PCV system starts negatively working as in the air going back the wrong way. Installing a check valve only makes the boost go to the other side of the system, either way if it can bleed off because boost is on the other side of the check valve, then excessive crank case pressure is going to be evident.

FYI
***edit*** lol some catch cans have a small vent hole to avoide excessive pressure in themselves which also aid the entire crank system too.