Thread: Catch can blow through diagram?

So I'm thinking bout adding a catch can back to my sr20det blow through setup. I'm trying to hunt down the (right) diagram that shows me which lines go where. Figured I'd ask before hand to double check my research, thanks in advance.

Check this thread out: http://www.sr20-forum.com/information-library/44727-crank-case-ventilation-fully-explained-turbocharged-edition.html

Yeah i read through that, im still a little confused. What i'm thinking is this.....a hose from the crank case to one hole in the catch can, and a hose from the valve cover to the other hole in the catch can and try and add a 3rd hole to run a hose from the can to the intake?...does that make sense? Problem is i was gonna grab one of those $20 catch cans off ebay, but they only have the 2 connections.....so im not sure how i'd add the 3rd hole to run a hose to the intake?

Like I said in the PM. That's a bad idea for two reasons.

1) You're not gaining anything above the stock setup. You're actually making it worse.

2) eBay catch cans don't flow well at all.


Re-read both crack-case ventilation threads. Read them 10 times if you have to.

Here is my engine bay, and drew some lines on some of the ventilation so you didnt have to do any searching lol
One thing to note, i'm in the process of building my intake thats why all i have on the turbo right now is a blue coupler, i'm waiting for a 90 degree coupler coming in the mail which probably shoulda been today, but since its the 4th wont be until tomorrow.

Yep, you're missing the stock catch can.

Get a stock catch can and stock lines to go with it. I'm sure plenty of people have them laying around that they will sell you. I know I do.
Install that, and then just vent to atmosphere. You'll be okay.


If you want to go one step further, I would move the MAF to draw-through where it belongs, and run a hose from where you have the filter to before the turbo but after the MAF. That will give you a stock setup, and you'll be golden.


If you want to get super duper paranoid, then put an additional catch can between the valve cover port and the turbo intake. Make sure it flows well and is of good quality.
Here's what I'm talking about: http://www.sr20-forum.com/members/benfenner-albums-crankcase+ventilation-picture187-sr20det-catch-can.png

Edit: I've just added a diagram to the thread describing this third option.

ya thats basically what i've been tryin to tell him lol

Hey Ben, when I click on that last link there it just opens a blank screen, its not loading anything?

Josh, you said you weren't sure though, i wanted to be 100% before I went moving things around =]

i meant moving the maf back to draw through

The last link has been fixed. Refresh and try again.