top mount setup/S13 SR valve cover catch can

[Kingtal0n]

Always pressure test forced induction setups
https://www.youtube.com/watch?v=w1sb5Y1J068&t=77s

Always measure crankcase pressure at wide open throttle
https://www.youtube.com/watch?v=0oRbfNPnHaI&t=1507s

If you actually do these correctly, an OEM PCV setup for 2jz-gte, sr20det, rb2xdety, LS applications, will function 100% perfect

I've successfully tuned ~250hp/liter these engines, sr20 500rwhp, 2jz 800rwhp, LS apps 1000rwhp, with OEM pcv hoses, lines, routes, for Daily Drivers Street/Strip high mileage setups 200k 300k miles some of them.
LS apps I use the 2jz-gte Supra PCV valve, In my pressure tests the Chevrolet leaks. Sometimes the aftermarket PCV valves for Nissan and Toyota leak as well. You must test the entire plumbing the way I have shown in the video, do not trust the pcv valve without testing it.

[splitfire]

Originally Posted by Kingtal0n

....

Mann ProVent system. 100% OEM catch can setup on many commercial diesel engines.
Period.

[Kingtal0n]

Originally Posted by splitfire

Mann ProVent system. 100% OEM catch can setup on many commercial diesel engines.
Period.

Its not a catch can, There is a return pathway for oil to the oil pan so it does not stagnate. Also, diesel is quite different from gasoline and their PCV system is not setup the way it would on gasoline engines. Nice try though lol @ comparing diesel to gasoline lol, those engines run maximum compression i.e. WOT , all the time, even during idle and cruise. If you want to compare it with gasoline engine then you must make apples to apples comparison e.g. If we hold a gasoline engine at WOT all the time and it makes maximum blow-by and compression and absolutely fills the crankcase constantly with blow-by gas and high flow throughput of course it will carry significantly more oil vapors through the PCV system and must have a separator to return the oil to the oil pan considering like diesel engines we expect it to reach 1,000,000 miles of driving at WOT... Go try 1,000,000 at WOT with a gasoline engine and see if you needed a separator for the oil. rofl