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Blow by and venting discussion.

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Old 07-15-2011 | 09:07 AM
  #121  
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From: Emmett
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Originally Posted by Savedsol
This is all excellent! Macr88, what catch can is that?
https://www.s2ki.com/s2000/topic/769...t__p__19873356
Old 08-11-2011 | 04:11 AM
  #122  
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How does everyone rate my setup?

I'm boosted at 8psi and I do get build up in the catch mainly water with a little oil but I have to empty at least once a year if nor it overflows.

Could I make my setup any better or is it fine?

Thanks

[IMG] img863.imageshack.us/i/img20110322172328.jpg/[/IMG]
Old 08-11-2011 | 04:12 AM
  #123  
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Old 08-11-2011 | 07:55 AM
  #124  
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Its shit mate...
Old 08-13-2011 | 03:16 PM
  #125  
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Thanks dolphin nob.

Anyone else?

Thanks
Old 08-15-2011 | 10:27 AM
  #126  
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Any blow by issues with ITB's... how would i setup the oil catch tank with this ? I tought maybe i could use the vaccum tank, but i dont feel like killing the map by blowing oil vapors in it... and since its also used for the brake booster... im not quite sure
Old 10-16-2011 | 10:21 PM
  #127  
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From: Emmett
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Originally Posted by robrob
Here's my take on venting the S2000. The PCV valve is a pollution control device. Because it's line is connected to the intake manifold behind the throttle butterfly vacuum in the intake manifold sucks air and fumes out of the valve cover and crankcase. The large vent line at the front of the valve cover has no valves--it's just connected to the intake in front of the throttle butterfly. It simply allows clean air into the valve cover as the PCV sucks it out. The PCV can't create a vacuum in the engine crankcase because of the front vent. The PCVs purpose is to remove and burn gasses from the valve cover and crankcase.

This is why I say try clamping the PCV line with a big office clip to solve the "right hand sweeper blue smoke" problem. For race cars I recommend removing the PCV and line completely and putting a catch can on the large vent line on the front of the valve cover like this (my catch can has a filtered vent). My oil level is rock solid now, I used to have to add about a half quart each track day.
I posted this exact setup in one of the other threads and it didn't work which is why I drilled out the valve cover baffle. I would still catch about half a quart every two to three session or so. Now I only catch some mist and my plugs are happy. Certain tracks exaggerate the issue more than others as well as certain cars have less of an issue or no issue.
Old 10-17-2011 | 05:22 PM
  #128  
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There seems to be alot of uneducated solutions being passed around in this thread so I suggest reading this to have an understanding about how these systems actually work.

http://www.motoiq.com/magazine_artic...a-edition.aspx
Old 10-17-2011 | 05:54 PM
  #129  
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Originally Posted by Duke Togo
There seems to be alot of uneducated solutions being passed around in this thread so I suggest reading this to have an understanding about how these systems actually work.

http://www.motoiq.com/magazine_artic...a-edition.aspx
That is probably true but since the S2000 doesn't have an oil separation system like the Nissan does and the main issue isn't just taking care of mist oil but in fact taking care of a poor baffling system that traps oil under high G loads. The only thing that will work is providing a way oil can return to the crankcase before it gets sucked up through the PCV or breather vent both of which are capable of allowing large amounts of oil to enter the intake system.
Preventing oil from getting there in the first place will be way too hard and way more work than it's worth, allowing oil to drain out of the baffle is much easier and it works.
Old 10-18-2011 | 10:31 AM
  #130  
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I think this could be of interest:

https://www.mann-hummel.com/industri...BVFLGOcGNM.pdf

It's the ProVent System from Mann+Hummel. It has also a return line to the sump. All parts can be ordered separatly. I will go for this, because nothing really worked for me.



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