JBR OCC / Boomba CV / CFM Breather Cap Installed
This OCC setup (below) pretty much checks "all" the boxes I was looking for...I'm very pleased with the new JBR OCC kit....
- OCC with baffled internals
- 5/8" inlet and outlet ports
- Minimal hose routing lengths
- Easy draining capability
- Relatively stable & open mounting location
- Quick OE Hose Connects
- Check Valve
- Greater than 120ml (4.0 oz) holding capacity (drain every ~5k miles)
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JBR OCC Kit
http://www.jamesbaroneracing.com/sh...roduct_info&cPath=147_219_350&products_id=914
Installation Instructions:
http://www.jamesbaroneracing.com/support/JBR Fiesta ST Oil Catch Can Installation Instructions.pdf
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CFM Breather Cap
http://www.c-f-m.com/performancepar...reather-Kit-for-2014-15-Fiesta-ST-49p5173.htm
http://www.fiestastforum.com/forum/...Red-Build-Thread?p=65675&viewfull=1#post65675
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Boomba CV
http://www.boombaracing.com/check-valve-12-mm-1-2/
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Installation Pics:
Easy Access to Drain Valve through Wheel Well (shown below)
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Boomba CV
http://www.boombaracing.com/check-valve-12-mm-1-2/
Just a few thoughts and comments regarding the reasons as to why its a good idea to install a check valve between the Intake Manifold (IM) and OCC...
1) To mitigate any possibility of having the OCC pressurized during high boost conditions (particularly important when the can begins to fillup with blow-by oil residue and sludge)...Installing a check valve will prevent oil that has accumulated in the OCC from "percolating" and splashing up within the can occurring during high turbulent / initial quick boost spooling conditions which can create quite a mess internally by stirring up the heavier "sludge" that has already collected on the bottom of the can...This is done as a "
preventive measure" to prevent having any sludge residue that the OCC has collected getting all over and clogging / gunking up the internal filters and/or mesh baffles and then having it pushed back towards the PCV...
2) Installing a check valve between OCC outlet port and IM (located closer to intake manifold port) essentially will block or cap off the IM port during boost conditions...There is no advantage in having high boost pressure directed towards and filling up an empty canister or chamber (OCC) from the IM during boost spool-up and also no need to pressurize more volume than is needed outside the intake manifold.
3) OE PCV 's are fairly notorious for not being able to completely close to prevent boost from entering the crankcase, even when brand new. Add a few thousand miles worth of crud flowing back and forth through and the worse it gets. And the more boost you run, the greater the problem can become...
Now I'm not saying its absolutely required but it is a very good "preventative measure" to have a CV installed...