hi i'm going through my xfr and want to add a oil catch can. they say its a must for supercharged cars. if you have one what are you using and how did you mount it.
as always appreciate all the help

 

I bought one for my XF 5.0 supercharged, I’ll let you know how it goes

 

what did u buy and where?

 

Yeah, space is a real issue. In the end, I went for a test with with this cheap-*** example, and aside from my considerable disappointment that it turned up with "OIL CATCH CAN" printed on the top making it look extra-Chinese, it actually does an OK job, and it's hidden by the radiator cover when it's fixed in place.



I had to take a dremel to various bits of plastic to make it fit.

 

thx Dave and you connected it in line of the big hose on the drivers side of the motor that connects to the drivers side of the plastic intake tube.

 

Bought it from Amazon I believe the brand is Evil Energy, and yea there is limited space in our engine bay. Still have not installed it yet

 

OK, so I'll be there one to ask, why do you want to do this?

 

To prevent as much carbon build up from off the valves as possible. Just a precaution for blowby

 

So why is it a must for supercharged engines particularly?

 

It prevents it with all direct injection engines, not superchargers turbo chargers too

 

Why is it a must for supercharged cars particularly? I've rebuilt four of these engines, all of them SC with over 100k on them and not seen a huge amount of carbon buildup. Some yes but maybe causes a couple of hp loss after 100K. Presumably you dismantle the PCV system?

 

 

Oh lovely 😧

 

There are more ways to do it, and even variations on these, but I think the two easiest ways are these: 1) You can run a new 3/4" I.D. hose clamped to the outside of the PCV stub (basically a U-Turn hose) and then take it to the catch can (depending on the catch can's inlet & outlet dimensions), or you could cut the existing OEM nylon PCV hose (breather tube) somewhere along its length and connect the cut end to another hose (5/8" or 3/4", depending on a few factors), which then goes to the catch can. You'd basically do the same for the outlet of the catch can to the part load breather stub on the front of the SC. The OEM nylon PCV hose has connectors which allow it to snap onto the stubs (the hose actually fits inside of the PCV stub, while the plastic release tabs go around the outside of the PCV stub), which provide good connections without clamps. You need to make sure that whatever hoses you use are heat and vacuum rated, per this application, as well approved for exposure to oil. Oil can eventually break down silicone, if the silicone is not FKM-lined. But since the PCV is only flowing oil residue, I don't know if regular silicone would hold up or not. A good choice would probably be fuel or power steering hose, as long as they meet the heat and vacuum requirements, etc. You could also do the same from the full-load breather side, if you were so inclined, but the full-load side isn't deemed to be as big of a contributor to oil getting onto the intake valves.

 

thanks for all the input reax your diagrams really get me thinking its just a matter of where to find a place for the can that looks good

 

Yeah, the mounting location is really the only tricky part, once you know how it's all inter-connected. Because of all of the work I did, I put together something like a 228-page PowerPoint to keep me straight, and that was only one page of it. Ha-ha!