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#41
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So misguided it's actually laughable.
Condensation is a by product of heat cycling.........Once the engine in up to operating temp any condensate in the oil evaporates off. Where does anyone (or any manufacturer) recommend more frequent oil changes in cold weather?? FYI this is how the factory system works - it flows in one direction off boost & reverses on boost.... Crankcase ventilation ON boost
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[CENTER][SIGPIC][/SIGPIC][/CENTER] [CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER] |
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nick73 (13-04-2015) |
#42
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Automotive Engine Oil, How often should you change it?
I pluged a inline fuel filter to my crank breather, during cold start, it collected brown sludge immediately, and evaporated after 10min driving. Attached is my old set up, to reduce flow resistance, i runs straight breathers now. I also have a question, if oil is pumped to cylinder head, would it be on constant positive pressure unless engine breaking?
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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport Last edited by s20525xxx; 12-04-2015 at 11:54 PM. |
#43
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Without getting technical. Block the PCV off. Crank and head breathers to catch can,
can vent to atmosphere via a hose that runs under the car. Don't just put filter on the top and vent in the engine bay as you'll get fumes and smell it in the car. It's not pleasant (unless it Motul 300V which has an amazing smell lol). Then have a -10 return to sump. You can put an NRV in it if you wish. I never have and that set up has worked flawless for me for a number of years. Last edited by dazdavies; 13-04-2015 at 12:40 AM. |
#44
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Please get technical. Would like to learn more.
Thanks for everyone's input so far. I have searched this topic I just couldn't find threads which answered all my questions.
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Bye bye betty blue. Hello F6. |
#45
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Quote:
U reckon join both breather shouldn't have problems? Plz bring some theory if u have time. My mate with a built evo8, compreession and leak down test were good, but crankcase gas is enough to pop out dip stick. Might be design of the engine? using the Perth-WRX mobile app
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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport Last edited by s20525xxx; 13-04-2015 at 07:47 AM. |
#46
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#47
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Just did this experiment at work, during smoko of course...
So with pure vacuum there is no liquid movement between the vessels (vessel on left is the catch can) Catch can collapses under vacuum. With a partial break in vacuum at the vessel on the right(sump) the catch can easily sucks the water up from the sump. So catch can with vacuum and draining back to sump is a no no. If it had a breather to atmosphere (dazdavies, Gordon) it will work but then there would be no point running the pcv to it then would there... I wouldn't want to rely on a nrv to prevent oil sucking back up through the sump, I work with them everyday they fail and pass regularly.
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Bye bye betty blue. Hello F6. Last edited by nick73; 13-04-2015 at 09:55 AM. |
#48
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Quote:
2.Like I said, it's condensate from the engine cooling down & pulling moisture from the air - it is worse on humid days, it is completely normal & does no harm. 3. OMG......how did you expect the crank case gases to pass through that with that closed cell foam packed in there so tightly?? 4. Oil is always pumped to the heads when the engine is running. The blow-by gas volume increases with rpm & boost. There is always some blow-by if the engine is turning regardless whether its at idle, cruise, on boost or on over run.
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[CENTER][SIGPIC][/SIGPIC][/CENTER] [CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER] |
#49
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Quote:
Back on topic. If you want to you can Tee all the breathers together so you just have one inlet to the catch can. I'd only use a baffled can as the un baffled ones don't do much. Feeding back to the inlet is a waste of time in my eyes but I understand that you may not have a choice to be road legal but it's easy to swap. |
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nick73 (13-04-2015) |
#50
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That's main reason mine is plumb back in being early twenties cops don't need any extra help slapping out stickers
But my can is baffled and I don't get any oil in my intake system well havnt yet anyway using the Perth-WRX mobile app |
Tags |
catch, cusco, oil, placement or instalation, rj>s20525xxx |
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