I always have questions that don't seem to be addressed in installation manuals. I'm installing the catch can kit from Needswings...

1. The brass drain plug that goes on the underside of the catch can doesn't appear to thread all the way into the can itself. Please see picture. About 1/4 of the threads are still showing. Is this normal? I can't screw it down any tighter.

2. Rob explains that the passenger side of the y coupler that goes into the throttle body needs to be plugged off. Why is this?

Thanks for the help.

 

1. The threads are tapered and this is normal. The drain on a radiator is the same way, but i would use a teflon sealant on the threads.

2. Blocking it off prevents the oil vapors from going back into the intake system, and just into the catch can.
I had a catch can on my VW GTI. At high revs the oil would vaporize and flow into the intake gunking everything up. The catch can REALLY made a difference. I am gonna get one for the Crossfire.


-Dave L.

 

Thanks for the response Dave.

From the installation instructions:

"The Catch Can has a drain on the bottom of the can in which you can undo one nut/bolt combo, lift up the can, place a cup underneath, drain, close and reinstall. The brass fitting with the screw on cap to
the underside of the catch can is already installed with teflon paste. No Teflon is to be used for the cap. Finger tight is perfect and the
rubber seal inside the cap will work great for us. "

So it looks like the teflon coating is supposed to be on the gasket, though I don't see anything. Maybe rob can comment on this.

Also, does anyone know the proper orientation of the venturi 3 way connection that goes into the throttle body? I didn't bother to look which way it came out and the pictures are blurry. I took a side view picture of it (see attachment). Does the long(er) end go toward the front or rear of the vehicle?

Thanks.

 

the end that is in your pic goes into the t/b. one side is plugged and the other goes to the catch can

question... did you remove your manis to install the new lines? if you did you will need new mani gaskets. the metal oem gaskets wont reseal so call rob and get 2 sets of the cork gaskets. 1 set for the reinstall and the other set for a spare. you will need them down the road for something

 

I installed mine so long ago that I can't remember the details. But I emptied it today and it obviously works. The brass fitting only needs to be finger tight. I'll have to look at the throttle body tomorrow because I can't remember anything about that.

Les

 

The venturi orientation; I don't believe it matters. Somebody correct me if I'm wrong, but I think the angled cut is for ease of insertion? Final answer.

 

This is the amount of oil my Needswings Oil Catch Can had after 6000 miles.....
Glad this wasn't all in my intake instead.
This is a great mod for any Crossfire

 

Yep he included the cork gaskets with the kit, so im all set on that regard.

Krazy, i know that portion goes into the tb, but im not sure of the orientation. Does the longer or shorter side of this piece go toward the front of the car?

Should i orient it toward or away from the butterfly valve?

Or doesnt it matter?

 

I know the plug itself can be screwed on finger tight, but the part I'm worried about is the one that's circled in red in the picture I attached. I can't screw it in any farther than this.

Normal?

 

Yes this is normal.
Mine is the same way and Rob installed my catch can a couple years ago.
Never a problem with leakage at all.

 

That is the one with the tapered threads that needs the teflon sealant. That is normal to have some threads showing. I
f you try to over-tighten it, it will crack the brass fitting and leak.
I learned that on something else the hard way!

-Dave

 

Thank you guys for putting my mind at ease.

I'm really kicking myself for not taking note of the orientation of the 3 way piece, I just want to install it back the way it was stock...

 

the slashed edge og the 3 way goes into the t/b the other 2 ends it doesnt matter which way. 1 end is plugged and the other end goes to the catch can. oem had the 2 ends going to the t/b son it doesnt matter the orientation as long as it goes from the t/b to the catch can

your going 2 hoses to the can then back out to the t/b. the other end of the y is capped as it isnt used anymore

 

The venturi tube is oriented to that the taller part of the taper is toward the rear of the throttle body(toward the firewall) and the shorter part toward the intake manifold(front of the car) It doesn't matter which side you plug off. If you have any other questions about the install, give me a shout tomorrow afternoon and I'll make sure you're good to go. 952-681-1000.

Take care,

Rudy

 

You could P.M. Woody(our resident FlowMaster) for his thought on this. Let us know. That tip is sucking air from catchcan so maybe the sloped opening facing the SC (direction of flow). But I really don't think it matters. Bob Edit: just read Rudy's post. I guess it does matter. Damm, now I have to go check and see if I did it right. I guess that should have been in Rob's instructions yes?

 

This was the answer I was looking for. Thanks so much.

Ok, done for the night, will get back to it on sunday and upload pictures of completed product.

 

Not a problem and glad it got you going in the right direction. Good luck tomorrow.

Take care

 

Ok, pictures as promised. It's amazing looking back at how daunting the project looks at first and then seeing the finished product. It wasn't that bad at all.

Picture 4 is from my PSK install... does anyone know how much play the SC belt has? The screw seems awfully close to the belt and I wanted to know if I need to be worried or not.

 

turn the bolt around and you will have more room

 

yes, tapered threads on the catch can bottom port, it does not bottom out. don't over tighten or you can rip the threads out of the aluminum bung.

yes, the venturi port has the taller portion closer to firewall, pass side gets plugged since we do the 2 into 1 transistion inside the catch can itself.

yes, flip the bolt around on the psk bracket and clearances open up