PCV system.
07-01-2010, 07:12 PM
#1
Want fries with that?
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PCV system.
What should I do about it? I'm newly boosted, and I just blew my first rear main seal (yay!) which leads me to believe my crank case is being pressurized excessively.
I searched but can't really find any definitive thing that people are doing to solve this issue. I know some people are running a 323 valve, but that's all I can find on the subject.
Thoughts?
I searched but can't really find any definitive thing that people are doing to solve this issue. I know some people are running a 323 valve, but that's all I can find on the subject.
Thoughts?
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07-01-2010, 08:08 PM
#4
https://www.miataturbo.net/showthrea...ighlight=catch
read and be happy. I did an ebay catch w/vent, took my pcv apart (pulled out all the guts) and attached both ports on the head to it. You can see I still ooze oil out of the filler though.
read and be happy. I did an ebay catch w/vent, took my pcv apart (pulled out all the guts) and attached both ports on the head to it. You can see I still ooze oil out of the filler though.
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07-08-2010, 01:17 PM
#5
It's ugly but functional. PCV valve is hollowed out (no check valve). Catch can has a vent hole (not shown) in case of excess pressure from the 2 hoses coming off the valve cover. The intake manifold where the stock PCV used to be is plugged.
I've been running like this for a couple years with no issues.
I've been running like this for a couple years with no issues.
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07-08-2010, 01:23 PM
#6
search "catch can"
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07-08-2010, 02:25 PM
#8
You ^^ don't count
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07-08-2010, 03:57 PM
#12
Still don't count
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07-08-2010, 07:29 PM
#14
Just because you don't see it, doesn't mean there's no blow-by. I had no issues at 9 psi with the stock system, but when boost was at 15psi the cam cover started leaking. It's there, it just hasn't found a way out yet. Once it does, you'll probably see a 2% power increase. 
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07-08-2010, 07:36 PM
#15
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Just because you don't see it, doesn't mean there's no blow-by. I had no issues at 9 psi with the stock system, but when boost was at 15psi the cam cover started leaking. It's there, it just hasn't found a way out yet. Once it does, you'll probably see a 2% power increase.
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