Well, I don't live in a state that has emissions tests any more, so let's bypass that sucker!
DISCLAIMER: modifying engine components can and will void any sort of warranty (not that anyone on this site is worried about that). Working on cars is dangerous, accept that you will get burnt, crushed, sliced, diced, and killed. With that in mind, watch your digits and be careful. I accept no liability for any modifications that cause engine failure, engine explosion, or cause the engine to disappear into another dimension. Nor do i accept any liability for personal injury, unless there is a wormhole involved, then it's totally my fault.
Step 1: Get the Parts Together
1x small paint can and lid (this can be substituted for any container, though i'd recommend metal)
1x coupler to fit hose
1x nut to tighten coupler
Length of hose (determined by the size of your engine bay)
Tie Wraps to mount can in engine bay
Drill with bits appropriately sized for coupler and vent holes
Step 2: Drill the Lid
The point of a catch can is to allow the valve cover to vent any excess gasses and oil particles without dumping them directly into the environment. The can gives the gasses an opportunity to slow down and let the oil/carbon particulates fall out of the stream and stay in the can.
The PCV would normally route these to the intake manifold, however mine is constantly stuck in the open position causing idle issues. I don't feel like spending 50 bucks on yet another piece of plastic, so we'll plug the intake hole on the PCV and call it good.
Step 3: Attach Coupler and Hose
Push or screw the coupler through the center hole in the can and attach the nut to the opposite side to hold it in place. Push the hose onto the coupler and (if you're feeling frisky) attach it with a hose clamp.
If you don't have a fancy coupler you can just push the hose into the hole in the lid and that should work fine, perfection is not required here!
Step 4: Pop on the Lid!
I have not installed this as of yet, but will update with pictures and results when i do.
Please vote for this in the Jury-rig It Contest! (I was going to put this in the green contest for laughs but decided against it)
Step 5: Update: Installed
Anyway, thank you again for reading, and after i give it a run-in I'll post another update!
And a belated apology for the cr*ppy pictures, my camera phone sucks :(
Double Update Action!!!!!!
the way I had the hose routed to the can as shown in the pictures was the wrong way to do it. Some of the gasses remain in the hose, cool down, and create a liquid plug if there are 'ups and downs' in your line. Now i have it draining straight down. We'll see how it goes!