So how do you hook the catch can up? I bought one and totally installed it wrong I think... I was not thinking very hard at all. lol

 

Awesome catch can Dano! You have your AN fittings on the back of the VC exactly how I want mine to look! Good work on the Rising Star as well.

 

Yeah, I really have to bring my actual camera over and snap a few pictures. Camera phones never cut it.

I have the two -10AN fittings from the VC to the two fittings on the catch can. Then, I'm taking removing the hose with the PCV valve from the block to the intake manifold. I'm blocking off the open fitting on the intake manifold then running a hose, without a PCV valve, from the block to the catch can, which is why I needed that third fitting.

 

Haha damn that vc looks sick as hell! i think itd look better on a shaved vc but uve got VTEC to show off so +1 for doing something extravegant! lmao looks prety fricken nice that was a great idea, props Dano!

 

How do you block off the hole in the intake manifold?

and you mentioned something about a gutted PCV? what's that about?

I think the other thing I have a question about is the valve cover breather... do you still use it or do you block that off since the valve cover is already ventilated through the catch can in this scenario? And you're not suppose to use the stock valve-cover-to-intake hose on a boosted engine, right?

Is the place you hook it to on the block the same place as the other end of the PCV hose? And if so, do you modify anything on that end or just hook it up?


sorry for all the questions... just a little confused. Tried to ask all my potential questions at once so that you can clear everything up for me in one post.

 

Don't worry about the questions, I was just as confused as you a couple of months ago...

There are rubber caps you can pick up at an auto parts store.


The PCV (Positive Crankcase Ventilation) valve is a one way check valve. Once enough pressure is build up in the crankcase it opens and the excess pressure is given off the the intake. With a turbo there will be more pressure on the intake side which will prevent the PCV from opening and the excess pressure in the crankcase won't be able to escape. The catch can becomes the ventilator which is also why there must be a filter in the catch can.


I will be putting a rubber cap on the stock breather as well. For boosted engines you do not want the stock VC to intake hose. You would be pressurizing the head with the same pressure and the intake. That's a no no.


This is where it's up to you, I feel. I'm using the stock oil breather that is connected to the back of the block then connecting my own hose from there (where the stock PCV hose once was) to the catch can. I've heard of others pulling it all off and running a hose from block to catch can.

 

Okay, I think I understand... couple last questions

I think you're saying that I am suppose to gut the PCV so the check valve still is there and then integrate it into the catch can, or the hose between the catch can and valve cover? How do you gut the PCV?

The rubber cap on the intake manifold... what's it look like? Won't a cap just blow off under boost pressure? What are you capping... the PCV itself, or are you capping off the hole in the intake manifold where the PCV was? If so, do you mean a plug, not a cap?

The cap you mentioned for the breather... do you mean you're capping the nipple on the valve cover, or the nipple on the intake (which I suppose won't be there with charge piping)... or both?

And I noticed you have 2 hoses from valve cover to catch can... is that necessary? Can't I just use 1 hose from the valve cover to catch can, and then use the 2nd catch can nipple to run a hose to the block?

 

Not really... Pretend everything is connect like stock. Now, unplug the hose from the block breather. Then, unplug the other end where it connects to the intake manifold. Finally, throw out everything in between. Get a new hose and connect it from the block breather to the catch can. No PCV. Put a cap on the Intake's fitting:
http://www.clipsandfasteners.com/Rub...a_p/a12210.htm
^^They look like this, I'm not sure of the size. You can get a 5 pack for 3 bucks at an auto store.


Now, if you were oober cheap you could take a drill and drill out the PCV and reuse the stock hose but that's just silly.


I might clamp it down to be safe.
Check out this Skunk2 how-to: Diagram A shows a red cap over a blank vacuum fitting.
http://www.skunk2.com/installation/307-05-0260.pdf

Yep, I'm just capping the VC nipple. Your charge piping would be full of fail if it had a nipple for the VC.


I haven't a clue why there are two lines coming from the VC. Maybe for flow? I just saw people do two and it looks nice. So, I couldn't tell you if that would be bad.

 

I just don't understand what you're doing with the PCV. My PCV valve is in the intake runner and has a hose that runs to the main part of the intake manifold. I don't even see the hose that runs to the block.

EDIT: wow I feel dumb... just went and looked again... I had never noticed that the PCV isn't in the intake runner, it's just in the casting, and goes straight through to the other side which is a hose to the block.

So after you take the PCV valve out there is nothing to plug where the PCV was... just a hole in the casting. Then cap off the intake manifold nipple. Now run hose from block to catch can. Then run other hose from catch can to valve cover. Then put a breather on the catch can and done?


And I think I misunderstood your initial post about the catch can... you meant "gutted PCV" as in the line that the PCV valve was previously in, not an actual gutted PCV valve. That's why I kept asking about the gutted PCV. Now I see that you simply mean the now gutted PCV system as a whole.

 

Same pictures as before but with a real camera: