The "Catch Can" Explained!

[RodParis]

Chase and all,
Recieved my RX catch can on Friday. Installed it today. First, no instructions in the box other than a little slip of paper that said to watch the online video (shared in this thread) and/or go to RevExtreme and read the installation instructions. They were worthless, but I'd already watched the video a couple of times, so that was okay.

There were no hose clamps with the can. Is that normal? I noticed in the APEX installation instructions that they use hose clamps. Why would RX be any different?

Finally, there was a short piece of hose with a hard metal 90 degree bend at one end - a barb on the other. No mention of where/when/how to use this piece, but I used it since it made my hoses route a little better. As far as I know, it was just a piece of hose.

I'm concerned about no hose clamps and also the lack of detailed instructions other than to "watch the guy online" and the instructions provided by revextreme online were atrocious.

Should there be clamps on the hoses?

Thanks Rod

[RodParis]

Okay - sorry everyone! I sounded a little more crabby in my post yesterday than I actually was. I just was concerned about blowing a hose off of my catch can on a car with 60 miles on it. I'm not a mechanic (don't wanna be) and just needed some assurance that all was as it was supposed to be. Please advise. Thanks Rod

[Apex Motorsports]

Originally Posted by RodParis

Okay - sorry everyone! I sounded a little more crabby in my post yesterday than I actually was. I just was concerned about blowing a hose off of my catch can on a car with 60 miles on it. I'm not a mechanic (don't wanna be) and just needed some assurance that all was as it was supposed to be. Please advise. Thanks Rod

There is not very much pressure going through there so they are not likely they will blow off (assuming the hoses required a little muscle to get on like they usually do) but it is not a bad idea to use clamps. You can pick up a couple for less than a dollar.

[Stormwalker]

I'm glad I read up on this; I hadn't really thought about the consequences of direct injection meaning the detergents in your gas don't get to clean up your intake valves. Kinda important, that.

Order placed. Fortunately, I'm only at about 600 miles right now, so not too much time for me to worry about having problems already.

[Apex Motorsports]

Originally Posted by Stormwalker

I'm glad I read up on this; I hadn't really thought about the consequences of direct injection meaning the detergents in your gas don't get to clean up your intake valves. Kinda important, that.

Order placed. Fortunately, I'm only at about 600 miles right now, so not too much time for me to worry about having problems already.

Thank you for your order.

[ADR01T]

Installed my cai intake, apex catch can, and Vmax ported throttle body purchased from apex all at the same time when I drove home from the dealership Saturday. Taking off the stock Pcv line, I could already feel oil on the tube that exits into the intake manifold behind the throttle body (less than 80 miles at that point.) I'm now at just over 400 and there's about a quarter teaspoon in the bottom of the can that would otherwise be in my intake manifold. Quite impressed with the effectiveness and build quality of it. You've definitely got a satisfied and devoted customer here.

[Apex Motorsports]

Originally Posted by ADR01T

Installed my cai intake, apex catch can, and Vmax ported throttle body purchased from apex all at the same time when I drove home from the dealership Saturday. Taking off the stock Pcv line, I could already feel oil on the tube that exits into the intake manifold behind the throttle body (less than 80 miles at that point.) I'm now at just over 400 and there's about a quarter teaspoon in the bottom of the can that would otherwise be in my intake manifold. Quite impressed with the effectiveness and build quality of it. You've definitely got a satisfied and devoted customer here.

Congrats on the new ride and the upgrades. Thank you for your orders.

[Skylane765]

Originally Posted by Oldag

Have to disagree here. Breather caps were all that was available until around 1970 or so (give or take a few years). PCV systems have not been on cars since day one. The statement of substantially accelerated wear is not substantiated.

Letting the fumes go to atmosphere will not accelerate wear as opposed to leaving the PCV system in place. And as has been pointed out, not recycling those fumes into the intake has advantages.

The average car will not see a benefit between pulling a mild vacuum and venting to atmosphere.

Will disconnecting the PCV cause error codes? I do not know. This could be a complication.

Correct, just venting to the outside will not make the engine wear more. Just letting air oil vapor to the atmosphere.

[Apex Motorsports]

Originally Posted by Skylane765

Correct, just venting to the outside will not make the engine wear more. Just letting air oil vapor to the atmosphere.

It is illegal however. That being said, so is running without cats.

[ChibiBlackSheep]

Originally Posted by RodParis

There were no hose clamps with the can. Is that normal? I noticed in the APEX installation instructions that they use hose clamps. Why would RX be any different?

Should there be clamps on the hoses?

No need for the clamps. Very little pressure in these hoses. I ran an RX can for 9,000 miles and when I went to take it off, it will still hard to get the hoses off.

Throw them on for piece of mind if you want, but they aren't required.

[Apex Motorsports]

Originally Posted by ChibiBlackSheep

No need for the clamps. Very little pressure in these hoses. I ran an RX can for 9,000 miles and when I went to take it off, it will still hard to get the hoses off.

Throw them on for piece of mind if you want, but they aren't required.

This.

[slakjak1215]

Sorry noob posting, But, after the installation of the catch can, would oil changes need to become more often to compensate for the amount of oil the can catches? also, I have a 5th Gen V6 and was wondering if following the instructions online for the LS would be similar since the link for the 5th Gen V6 you provided earlier is grayed out. Thanks!
http://www.apex-speed.com/installation.html

[Apex Motorsports]

Originally Posted by slakjak1215

Sorry noob posting, But, after the installation of the catch can, would oil changes need to become more often to compensate for the amount of oil the can catches? also, I have a 5th Gen V6 and was wondering if following the instructions online for the LS would be similar since the link for the 5th Gen V6 you provided earlier is grayed out. Thanks!
http://www.apex-speed.com/installation.html

No, the catch can does not remove oil from circulation that was not already leaving. It just captures it before it gets to places it is not supposed to be. The V6 installation instructions should be uploaded in the next day or two.

[slakjak1215]

Originally Posted by Apex Chase

No, the catch can does not remove oil from circulation that was not already leaving. It just captures it before it gets to places it is not supposed to be. The V6 installation instructions should be uploaded in the next day or two.

Awesome! Thank you so much!