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Post by V6 on Feb 13, 2020 20:01:36 GMT
"Somewhat cheaper". Just a tad
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Post by threeflies on May 21, 2021 18:38:18 GMT
Nice piece of kit but don't ever use on a supercharged MX5.
The catch can fills up in a week , then overflows . We are talking , less than 80 miles. May work for standard cars but not for boosted. Looks nice but thats about all.
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Post by howardb66 on May 21, 2021 19:05:26 GMT
My catch can didn’t fill up in 3 years. Just a dribble in the bottom of my catch can.
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Post by atlex on May 21, 2021 19:20:33 GMT
Nice piece of kit but don't ever use on a supercharged MX5.
The catch can fills up in a week , then overflows . We are talking , less than 80 miles. May work for standard cars but not for boosted. Looks nice but thats about all.
I've seen this on my turbo car in the condition where I'd removed the standard PCV from the head side. Filled with oil on a few short journeys, the vacuum without the PCV's restriction in place was so strong it was just pulling the oil out the head along with the fumes. If you're running the standard PCV still, check it's actually restrictive - it may have failed. If you aren't.. put it back in. I run a one way valve as well as the PCV. |
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Crumpets
Chats A Bit
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Posts: 227 
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Post by Crumpets on Jun 8, 2021 21:33:39 GMT
atlex I'm currently having this issue; could you possibly point me in the right direction of one of these one way valves? Thanks in advance
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Post by atlex on Jun 8, 2021 22:12:37 GMT
alright please excuse the midnight photoshop.  the OWV is there to ensure boost doesn't get to the PCV valve. My point in this diagram is that you must have some form of restriction in the system on the intake manifold side, or it will suck the oil along with the fumes out your head. LEAVE THE PCV IN. |
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Crumpets
Chats A Bit
Insert witty remark here...
Posts: 227
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Post by Crumpets on Jun 9, 2021 7:31:34 GMT
Thank you so much for this atlex . I do think however that i have made some critical error in my thinking with the catch can. Rather than hijack this post, i'll take some detailed photos and make a diagram and make my own thread to try and resolve this. |
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Post by scottydugg on Jun 9, 2021 9:25:06 GMT
alright please excuse the midnight photoshop. the OWV is there to ensure boost doesn't get to the PCV valve. My point in this diagram is that you must have some form of restriction in the system on the intake manifold side, or it will suck the oil along with the fumes out your head. LEAVE THE PCV IN. Great diagram, but I'm being a bit dim I think, have you two lines to the can on the left? PCV/Cam Cover is the outlet to the can? then you've the return from the can to? (with the OWV). Can't quite make it out, does it go into the inlet mani? Can you just run a single line to this can and a filter on the can? That's what I was going to do. |
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Post by atlex on Jun 9, 2021 9:31:38 GMT
I ought to do a better diagram lol, it's not good enough because it leaves doubts in.
the PCV restrictor is only needed if you're sucking through it to the inlet mani (big vacuum source), which is what I'm doing in the setup in the diagram.
But if if you're Vent to Air (not to inlet mani) on this left side as you look at the bay, you have to get rid of the PCV because it's so restrictive, if there was no vacuum source, it would just sit there like a plug :-)
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Post by atlex on Jun 9, 2021 10:11:59 GMT
alright  |
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Post by atlex on Jun 9, 2021 12:45:31 GMT
on my VTA setup on the white car I go one step further and have a 1960s level emissions technology "road draft tube" to pull air actively through when the car is driving.. the draft of air passing the tube end causes a mild vacuum.
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le sigh
Jul 15, 2023 20:03:52 GMT
le sigh
Jul 15, 2023 20:03:52 GMT