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post #1 of 12 (permalink) Old 04-30-2012, 03:10 AM Thread Starter
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Smile Oil Catch Cans

Just posting a informational because I have seen a few post regarding them and whether or not to make your own or buy one and it seems to be confusing for people to find the right one.

Not sure on how people feel about Andy's Auto Sport but I have seen a few interesting things over on their site. This is just one of the interesting things I have found as far as the oil catch can goes(Or you can just make your own and be cheap about it but these have a spiffy look to them for anyone trying to get the "look" out of this handy device).

http://www.andysautosport.com/dodge/...0catch%20tanks

They are a little spendy on some of them but the one I have my eye on is the Weapon R 18 oz. tank. Only because it is a compact tank so where to put it shouldn't be such a difficult task.

Let me know whatcha think!
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post #2 of 12 (permalink) Old 04-30-2012, 11:01 AM
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Why would you think you need one?
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post #3 of 12 (permalink) Old 04-30-2012, 11:44 AM
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I think andysautosport is run by crooks, but thats just my opinion
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post #4 of 12 (permalink) Old 04-30-2012, 12:24 PM
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the way I see it, you can spend 50 bucks plus shipping and then have to go through the headache of chopping up your PCV lines and routing new ones, only to have to empty out MAYBE an ounce of oil after 30,000 miles or so. OR, you can save $50 and replace a PCV valve whenever it finally goes
(I know several of the people here on the forum have replaced theirs as part of a maintenance schedule, but I'm SURE that many of us are still running with the original ones). And as a plus, you won't have to find a place to fit the catch can, or change the factory hose routing.

To put it short, I don't think you would find any benefit from installing the catch can because you should not have enough blow-by or oil traveling through the PCV system to make it worth having.
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post #5 of 12 (permalink) Old 04-30-2012, 12:54 PM
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Why would you think you need one?

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Originally Posted by bh1992 View Post
To put it short, I don't think you would find any benefit from installing the catch can because you should not have enough blow-by or oil traveling through the PCV system to make it worth having.

I have removed numerous upper intake plenums that had way more than an ounce of oil in them and there are always those questions about the oil leaking from the MTV.

So, you're saying that that shouldn't happen when the PCV system has been maintained properly?
That the oil vapor is not going to condense inside the plenum and build up over time?
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post #6 of 12 (permalink) Old 04-30-2012, 03:14 PM
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I think andysautosport is run by crooks, but thats just my opinion
^..x2
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post #7 of 12 (permalink) Old 04-30-2012, 03:52 PM
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I have removed numerous upper intake plenums that had way more than an ounce of oil in them and there are always those questions about the oil leaking from the MTV.

So, you're saying that that shouldn't happen when the PCV system has been maintained properly?
That the oil vapor is not going to condense inside the plenum and build up over time?
I actually did a lot of research on this over on lxforums a while back.

Every plenum I've removed is loaded with oil. The car will run fine this way as demonstrated by well everyone, but a catch can would be an effective way to eliminate the issue.

It just isn't really worth the time or cost to worry about. All the lx guys are obcessed with catch cans though.
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post #8 of 12 (permalink) Old 04-30-2012, 05:12 PM Thread Starter
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I think it's beneficial as far as keeping the air clean running through your system. We change our Air filters all the time and yet some people see no point in adding a filter to keep the intake clean from oil particles from the PCV?

Cleaner air = cleaner running system, imo.

Yes Andy's Autosport is quite spendy and you are buying the name over the functionality. So I guess you can always just look around ebay for something, or you can be like some who think it's pointless to add and love cleaning their throttle body's all the time.
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post #9 of 12 (permalink) Old 04-30-2012, 08:43 PM
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...or you can be like some who think it's pointless to add and love cleaning their throttle body's all the time.
Oil in the plenum causes you to have to clean the throttle body how? (Throttle body is upstream of the plenum.)

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I actually did a lot of research on this over on lxforums a while back.

Every plenum I've removed is loaded with oil. The car will run fine this way as demonstrated by well everyone, but a catch can would be an effective way to eliminate the issue.

It just isn't really worth the time or cost to worry about...
I agree with that guy.
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post #10 of 12 (permalink) Old 05-01-2012, 04:44 AM
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Didn't Don put a filter/dryer on his car years ago? Could have been someone else but I'm pretty sure someone rigged up a system like that using a standard air gun filter/dryer.
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post #11 of 12 (permalink) Old 05-01-2012, 10:07 AM
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Oil on the back side of the tb is from pcv sucking in oil vapor. Oil on the front side is from your breather tube spitting oil. If that happens you must be at full throttle a lot or have other issues causing blow by.

ANY oil vapor getting into the intake is getting into your cylinders. Oil causes carbon build up. If you can eliminate that, you can eliminate most of your carbon issues.

$100? maybe. But, if you can build one for around $20-30, I'd say its well worth it.

And, just about every single small engine I've torn apart, and most large ones, all have oil in their intakes. Mainly due to the breather system. Its inevitable to get some oil in your intake over time. The PCV system is drawing out of the crank case which is always flinging hot oil around in it self. Oil vapors build up.

With that said, heavy throttle will close off the pcv system and will cause some crank case pressure. In these engines, it finds its way through the breather line connected to your intake tube, past the tb, and into the intake. This will occur in the best condition engine.
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post #12 of 12 (permalink) Old 05-01-2012, 11:30 AM
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I don't think you will get any measurable improvement from adding a catch can to these vehicles. The amount of oil ingested in negligible unless you have other problems in which case you will only be masking them. If this were a 13:1 motor that made consistent full throttle blasts then I'd say go for it. I think your $$ could be better invested

my .02
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