so I am trying to figure out the main purpose to oil catch cans, and it sounds like it's only for boosted applications, but I have read some people are running them on N/A eco's.
I have noticed a collection of oil in my original intake manifold, and I do lose oil between changes (no more than 1L per 3000 kms), and I drive my car, relatively hard, so I am debating on if this might be a good investment or not
My mod list is up to date if anyone wants to check it out and tell me if I should consider it or not
And if anyone would like to post an official WHAT and HOW an oil catch can works, I would love to hear it
Buddy Club Ecotec Cavalier
* More to come *
Oil catch can doesn't keep the oil in the engine, it keeps the oil out of the intake.
I had one for a while on my unboosted Quad 4 and it was just a waste of engine space.
I have one on my LN2. The baffles in the vc were cut out for roller clearance, can keeps it from running to my air filter
I have one on my Eco along with my drilled oil cap lol. It did make a difference in how smooth the engine ran and what not.
Jay,
I definitely put one on my car.
After seeing my car on the dyno blowing out oil and smoking out the "breather filter" under boost, it's definitely a necessity.
I don't know about unboosted, but I'm sure it would help out the engine to some extent.
i put one on my 2200ohv but had to modify valve cover to do it.it removes all of the condensation and unburned fuel and keeps it from reburning that crap again.it also keeps the octane of your fuel normal levels, without can reburning the crap lowers octane by how much i don't know.i made one from a small aircompressor filter/dryer and a ss drink bottle.cut it in half turned it upside down screwed it in bottm of bottle and i put ss bb's in the filter jar so it would cool of the air.there's a little more to it but really easy to do.30.00 total cost
Thinking of buying one $60 shipped. Not sure how to hook it all up.
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
make your own . i used a husky brand oil filter/seperator for home depot air/comp it was like 20.00 or less.just put in bb's or ss bb's in the jar and drain it when it gets full usually oil change time.the bb's will cool it off some and the return air back to system will be cleaner and won't reduce octane level.really good for boosting.you'll be surprised how much crap[condensation,unburt fuel,and gunk is being reburned]
a catch can catches oil vapor thats in the crankcase ventilation system.
basically, the "otherside" of the engine needs to be able to breathe... the side under the pistons, where the rods and crankshaft are.
originally this was vented to atmosphere, but since emissions standards were updated, and oil is suspended in the vapor, car makers had to start burning it in the engine, hence the PCV (Poisitive Crankcase Ventilation) system.
The vent is run via hose to a vacuum source (usually the intake manifold) to help evacuate the bottom side of the engine. great for emissions, but gunks up the intake.
catch cans are put in-line of the PCV line in order to catch and filter out the suspended oil vapors so that mostly fresh air gets pulled into the intake, and it is kept clean.
one side of the can is the PCV side, the other side has to go to a vacuum source in order to work properly. the catch-can also needs to be routinely emptied, although some systems incorporate an oil drain that lets the oil go back into the oil pan and recirculate into the oil system.
for turbo cars its especially important because positive pressure can actually boost the crankcase of the engine on accident (read: underneath the pistons where the rods, crank, and oil are), increase blow-by, and therefore massively increase the amount of oil that is shoved into the intake via the PCV system. Normally, you would use a one way check valve to regulate this.
I've even seen some turbo cars use twin catch-cans for PCV systems with two sources of vacuum, akin to the ecotec (vent on the valve cover as well as the vent built into the intake manifold).
I find it useful....havent used one but in theory it sounds useful. Heck just remove your intake pipeing...if you find oil residue then order one!
What I want to know is it better to get one with a breather filter built in the oil catch can>?? or one without that filter
GMR has got nothing on this
pete toures wrote:make your own . i used a husky brand oil filter/seperator for home depot air/comp it was like 20.00 or less.just put in bb's or ss bb's in the jar and drain it when it gets full usually oil change time.the bb's will cool it off some and the return air back to system will be cleaner and won't reduce octane level.really good for boosting.you'll be surprised how much crap[condensation,unburt fuel,and gunk is being reburned]
I did this. It fills up too fast. Instead I bought the 20 dollar ebay one that bolts together and put my own baffles in it. Much better.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
02ECOTECIMPORTKILLER wrote:http://cgi.ebay.com/ebaymotors/_W0QQcmdZViewItemQQ_trksidZp3984Q2em1423Q2el2649QQitemZ250620446866QQsspagenameZSTRKQ3aMEWAXQ3aIT
This is what ill be purchasing.
I wouldnt. You catn open it up to put baffles in, and without baffles its useless.
1994 Saturn SL2 Home Coming Edition: backup car
2002 Chevy Cavalier LS Sport Coupe: In a Junk Yard
1995 Mazda Miata R-package Class=STR
Sponsored by:
Kronos Performance
WPI Class of '12 Mechanical Engineering
WPI SAE Risk and Sustainability Management Officer
