Quote:
Originally Posted by Kingtal0n
Very Informative post. So tell me, what other reasons are there for adding a catch can to an engine (or anything else for that matter) other than
A. Desirable
B. Necessary
Because I am pretty sure that sums up every reason for making any modification. ever.
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Oil vaporized in the pressurized crank case air accumulates in a catch can because a filter element gives surface area for oil vapor to coalesce back into oil on. It is an improvement to the crank case ventilation system because it eliminates troublesome particulate from entering the turbo/intake system/charge piping when between the sr20 valve cover and intake and out of the intake manifold when between the pcv and intake manifold.
If Im at a hospital and there's two doctors, one of whom didn't do their chemistry homework, it doesnt matter who I choose because theyre both doctors, at a hospital, who can likely diagnose and treat a broken leg. (The military affords one the experience of being treated by someone that practically doesn't even know how to spell chemistry, on a regular basis)
The sr20 did at one point come from the factory with a catch can on the exhaust side that you so furiously defend as being pointless...
Its the black thing behind the exhaust manifold.