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Discussion Starter · #1 ·
Seems there has been quite a bit of "performance" topics here lately. Great discussions. Here's another option you may want to consider: an oil catch can. Ford dropped the conventional PCV type setup years ago, and went with a straight tube from the valve covers to the air inlet/intake to draw any engine blowby and have it re-burned. problem is, there is quite a bit of oil mist that gets drawn into the air intake, which can do a couple of things: one is that it can dilute the air mixture a bit, and secondly, it causes this oil to deposit on the valve top, and the pistons.

Before the nay sayers jump on me and say "why did'nt Ford add this", I'll state that I do not know. However, you can buy a pre-made kit for about $100.00, or make your own (as I did) for less that $25.00. You only need to add one on the passenger side. After only 300 miles after the install, this is how much oil mist I captured and prevented from entering the air intake manifold (see the bottom of the clear tube):
 

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Yea that's crazy. Could u imagine after 20 or 30000 miles? It should come standard but atleast it don't break the bank. Great investment!
 

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Yea I got the jlt catch can which says to empty after 5000 miles but it is about full after like 1000-1500 miles, at first I was thinking I had terrible piston blow by but now that I see how much you have in there with 300 miles I have a bit more peace of mind
 

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Idk about other brands. I have the Moroso and it should be installed on the passenger side of the engine. AM carries them. I think they call them air/oil separators.
 

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Looks good there Bucko! I've got one on my 5.0 as well. I could imaging what my intake and heads would look like without it. It would be a gummy mess that's for sure.

Plus, oil on the wrong side of the combustion chamber robs you of horse power so this really is a performance upgrade.
 

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Discussion Starter · #9 ·
Nice job, looks good. Just curious, does the hose still have to connect to the Cai.
The catch can installs on the passenger side valve cover to air intake.
 

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Yea I got the jlt catch can which says to empty after 5000 miles but it is about full after like 1000-1500 miles, at first I was thinking I had terrible piston blow by but now that I see how much you have in there with 300 miles I have a bit more peace of mind
Do you take a lot of short trips where your car don't warm up all the way?
 

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So what does this do as far as performance? I thought this was a 5.0 only thing.
 

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Abominable Mustang
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So what does this do as far as performance? I thought this was a 5.0 only thing.
It keeps all of that oil in the can out of your intake. On my old 4.6L, the PCV line connected to the intake just before the throttle body. After a while the oil mist would dirty up the TB, slowing down the throttle response.
 

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It keeps all of that oil in the can out of your intake. On my old 4.6L, the PCV line connected to the intake just before the throttle body. After a while the oil mist would dirty up the TB, slowing down the throttle response.
I dealt with a dirty throttle body before in my 3.8. Once cleaned, now that was a cheap mod you could feel a difference
 

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Abominable Mustang
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I dealt with a dirty throttle body before in my 3.8. Once cleaned, now that was a cheap mod you could feel a difference
Before the catch can, I was cleaning my TB every 2-3 months. After installing it, I never had to clean it. Instead, I'd just empty out the catch can. Plus, if that much grime is getting on the TB, then how much was going through the intake manifold and on the valves? I see a catch can as well worth the money.
 

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Seems there has been quite a bit of "performance" topics here lately. Great discussions. Here's another option you may want to consider: an oil catch can. Ford dropped the conventional PCV type setup years ago, and went with a straight tube from the valve covers to the air inlet/intake to draw any engine blowby and have it re-burned. problem is, there is quite a bit of oil mist that gets drawn into the air intake, which can do a couple of things: one is that it can dilute the air mixture a bit, and secondly, it causes this oil to deposit on the valve top, and the pistons.

Before the nay sayers jump on me and say "why did'nt Ford add this", I'll state that I do not know. However, you can buy a pre-made kit for about $100.00, or make your own (as I did) for less that $25.00. You only need to add one on the passenger side. After only 300 miles after the install, this is how much oil mist I captured and prevented from entering the air intake manifold (see the bottom of the clear tube):
How'd u make it! I wanna make one too lol
 

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jdavis96gt said:
Do you take a lot of short trips where your car don't warm up all the way?
Only one way, going to work its is about 8 miles but the temp gauge just gets to normal operating temp as I pull up.
On the way home I take the long way home. I'd say it having been 0 to 5 below zero may have had something to do with it. Now that its wamed up I'll have to see how much there is the next time I change it
 

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Discussion Starter · #17 ·
Only one way, going to work its is about 8 miles but the temp gauge just gets to normal operating temp as I pull up.
On the way home I take the long way home. I'd say it having been 0 to 5 below zero may have had something to do with it. Now that its wamed up I'll have to see how much there is the next time I change it
In my case, I drive about 700 miles a week, 90% highyway speeds of 70+ MPH, so the "short trip/no warm up" is not an issue by far.

How I made mine: bought an air dryer that's used in air compressors for $19.95. You can then cut the ine off of the existing special connectors and use the fuel line and hose clamps to plumb it all up. All in all I had about $30.00 invested.
 

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Discussion Starter · #19 · (Edited)
Did you use 3/8" lines.
Not sure to be honest...after I cut the hard plastic molded lines off of the Ford connectors, I used fuel line hose I had hanging on the wall. I think it was 3/8.

I did not like the way the final assembly looked though once installed (it was on an angle), so I took a stock PVC tube from a 2005 Ford F150 4.2 V6 I had and used that to cut and connect to the compressor air dryer. It allowed for perfect angles, had the Ford connectors, and the hard plastic hose which slid onto the copper connectors that you have to attach to the air commpressor dryer inlet/outlet openings. They did not even require clamps. Maybe this pic shows all this:



In all, you will need from Lowes (or Home Depot): One air compressor dryer, two brass hose fittings for the inlet/outlet, fuel line, teflon tape, and clamps.

Be sure to use white teflon tape on the threaded ends of the brass fittings before installing onto the compressor air dryer for a sealed fit, and make sure the drain fitting on the dryer is good (no leaks). The passenger side is the "vacumn" side of the crankcase breathing system that you want to install this setup on.

Most folks don't want to go through the effort above to make their own, which is why I guess the JLT or Morroso kits are a popular sell.
 

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