Catch Can - Page 2 - Mustang Ecoboost Forum
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post #11 of 19 Old 03-04-2018, 05:48 AM
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Originally Posted by ecostang2015 View Post
what is the catch can doing? catching oil from the turbo or valve covers?
Neither, it's from the crankcase.

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post #12 of 19 Old 03-04-2018, 06:56 PM
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so whats the advantage for having the catch can? will the car run smoother ?
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post #13 of 19 Old 03-05-2018, 04:15 AM
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Originally Posted by ecostang2015 View Post
so whats the advantage for having the catch can? will the car run smoother ?
On a stock car there really is no advantage to having a catch can. The PCV system is designed to route those crankcase gases back into the intake tract and burned as part of the normal combustion process. However in modified high compression engines, or engines that run a lot of boost the amount of oil vapors in the crankcase are increased and sometimes too much oil gets picked up in the PCV system and sucked into the intake tract. This can in extreme cases foul a plug.

Most of the time people see oil in the intake tract and freak out so they install a catch can thinking it will help with performance. However in reality the small amount of oil vapors being sucked back into the intake has little to no impact on overall performance.

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Last edited by Uncle Meat; 03-05-2018 at 04:17 AM.
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post #14 of 19 Old 03-05-2018, 11:03 AM
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I installed a Mishimoto Catch Can at 1,000 miles. Now at 5600 miles, i checked it and it had some in it. Imagine that oil being circulated back into the upper intake. Well worth the cost.
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post #15 of 19 Old 03-05-2018, 12:36 PM
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I installed a Mishimoto Catch Can at 1,000 miles. Now at 5600 miles, i checked it and it had some in it. Imagine that oil being circulated back into the upper intake. Well worth the cost.
So how much extra power do you think your making with that catch can installed? Unless your engine was pushing a quart of oil into the intake every 500 miles it's a waste of money. I suggest you try dyno'ing before and after the catch can installation, then get back with us and show the results.


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post #16 of 19 Old 07-17-2018, 11:32 PM
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I'm more concerned about the residue the oil leaves in the intake tract and on the back side of the valves. How long before it builds up and starts causing problems?
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post #17 of 19 Old 10-03-2018, 05:06 PM
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So question on the Catch Can. Ford performance has this one:

https://performanceparts.ford.com/part/M-6766-A23

But they actually sell a left hand side and right hand side. FP Tech on the phone said either one would work, but isn't there a "clean" and "dirty" side? Wouldn't the dirty side be the one you want and then the clean side maybe extra/overkill? One has a OCV valve built in, and the other does not.

Now I'm confused.
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post #18 of 19 Old 10-04-2018, 07:37 AM
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Originally Posted by Barry View Post
I bought and installed a JTL catch can from American Muscle. It's nothing special or exotic, but does work and helps keep the oil out. Cheap and easy way to help keep the engine running in tip-top shape. Be patient and don't get frustrated taking off the lower hose. It's a pain in the butt. Find someone with long skinny arms to help you.
Quote:
Originally Posted by ecostang2015 View Post
what is the catch can doing? catching oil from the turbo or valve covers?
Quote:
Originally Posted by blondie-tuco View Post
So question on the Catch Can. Ford performance has this one:

https://performanceparts.ford.com/part/M-6766-A23

But they actually sell a left hand side and right hand side. FP Tech on the phone said either one would work, but isn't there a "clean" and "dirty" side? Wouldn't the dirty side be the one you want and then the clean side maybe extra/overkill? One has a OCV valve built in, and the other does not.

Now I'm confused.
Yeah so am I!? Not sure why they offer both a drivers and a passengers side catch can. I would think you'd only need one with two being overkill. The stock PCV/oil separator is on the drivers side of the motor and this unit from Ford definitely would keep everything under the hood looking "factory" were you to install one.

Do us all a favor and use the "Contact" option on the Ford Performance Parts website and ask them!

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post #19 of 19 Old 10-21-2018, 06:09 PM
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I never got a straight answer other than “buy both”. I bought a mishimoto, and don’t expect performance increase, just doing it to keep the intake clean.
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