who's using a catch can on there pcv system?

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Im running catch cans on my hemi's. They catch the oil that would go into the intake and get burned. I was reading the di thread and no one is talking about catch cans. Seems like it would be a no brainer to run one on a di engine.
 
Lots of discussion on these at Mopar forums (as you most likely know)

I will not add one to my Challenger, IMO I would rather trust the factory designers/engineers
 
Originally Posted By: cmorr
I would rather trust the factory designers/engineers
I would too,but they too, make a lot of mistakes,just look at all the recalls on almost every car manufacturer there is,cars that catch on fire,tires blowing out and killing people,brakes problems,etc.
 
i have one on the neon. SRT Engineers told our forums that they dont install catch can due to emmision system warranty. it would be another part that would need to be serviced at regular intervals by the consumer and if not serviced could cause major emmission system problems and or failures
 
Originally Posted By: cmorr
Lots of discussion on these at Mopar forums (as you most likely know)

I will not add one to my Challenger, IMO I would rather trust the factory designers/engineers


The only reason a catch can is not installed at the factory is to A: lower cost and B: for emissions. The recirculated air helps lower emissions. If the engineers were trying to make the engine as best as it can be and they had no limits, I imagine that the said engine would sport a catch can.
 
I have one on my 97 Z28 Camaro and a friend of mine has one on his 09 SRT8 Challenger. They work, no doubt about it. It will keep oil out of the intake. The main reason I do is because of modifications to the engine and lots of high rpm use on track days. Oil will effectively lower the octane of the fuel causing knock and power reduction on newer computer controlled engines.
 
I have been running an AMW catch can on my 5.3 truck engine for 5 years. Works great.

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A catch can reduces deposits in the intake, throttle body and idle air valve [vapors when hot and off], intake valves, and combustion chamber deposits.
I use them for many years..
Car mfrs. can't put them on because they have to last for 50,000 -100,000 miles. Catch cans require hands on draining every month -6 months. We can easily see why they are not standard on cars, with today's laws and unreliable and ignorant drivers.

Do they help? Absolutely. Turbo engines require a different type.
 
It should be noted that almost any engine with a dry manifold and a PCV setup will have oil in the intake. Boy, all those poor terribly neglected cars!

That's the overwhelming majority of cars on the road today!

We've been hashing this out for years at 300cforums.com. The facts are simple, it is not needed. It could easily have a purge valve on it controlled by the computer just like the EVAP system your car already has.

I can put one on my lawn mower and it will 'catch' oil vapor. But there is no damage of any kind.

Last meet we had in Bradenton my car was quicker than any other stocker present, even ones with CAI and relocated IAT, etc. Without a catch can!
 
Originally Posted By: daves66nova
Originally Posted By: cmorr
I would rather trust the factory designers/engineers
I would too,but they too, make a lot of mistakes,just look at all the recalls on almost every car manufacturer there is,cars that catch on fire,tires blowing out and killing people,brakes problems,etc.


So true, Dave. It seems so often we here the refrain (even here on BITOG) "follow what the engineers say. They designed it. Don't you think they know what's best for their product?" yet there are so many examples of things not working right.

I'm sure for the most part that advice is correct. But there have been lots of major and minor gaffes from engineers on the cars we hold so dear.
 
We have a member in our hyundai forum with a catch can installed in their 2012 accent (Direct Injection). It filled up about a few table spoons. He is at 15k miles using it and so far, no extra build up. Checked the hoses and nothing was clogged. PVC seemed to be working
 
I installed this on the Mustang since day one and at 10k miles I replaced the throttle body and plenum. The Plenum and intake manifold was spotless. I get about 4 oz of oil in the catch can at each oil change. You can get an aluminum catch can kit on ebay for under $20.

DSC05760_zps1f3bdaa3.jpg
 
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Originally Posted By: daves66nova
Originally Posted By: cmorr
I would rather trust the factory designers/engineers
I would too,but they too, make a lot of mistakes,just look at all the recalls on almost every car manufacturer there is,cars that catch on fire,tires blowing out and killing people,brakes problems,etc.
+1. This is an area where such simple technical improvements can and should be made by the manufacturers. If the simple technical areas (like brakes, fire prevention designs in electronics, wiring and batteries, seat belts, brake pedal faults, etc. are still not 100% assured), then the engine bay area probably needs more attention to details as well. One obvious item is PVC valve setup and the oil entering the combustion chamber via this route, specially in the diesels!
 
I had an oil catch can on my prelude that I drove all year, and I found when it was getting cold I would have to drain it all the time as the oil when mixed with the moisture would create a milky overflow which looked like vomit.

I haven't installed a catch can in any of my other vehicles.
 
Originally Posted By: SteveSRT8
It should be noted that almost any engine with a dry manifold and a PCV setup will have oil in the intake. Boy, all those poor terribly neglected cars!

That's the overwhelming majority of cars on the road today!

We've been hashing this out for years at 300cforums.com. The facts are simple, it is not needed. It could easily have a purge valve on it controlled by the computer just like the EVAP system your car already has.

I can put one on my lawn mower and it will 'catch' oil vapor. But there is no damage of any kind.

Last meet we had in Bradenton my car was quicker than any other stocker present, even ones with CAI and relocated IAT, etc. Without a catch can!


Go hash it out some more, as your conclusions are incorrect.
Less combustion chamber deposits, valve deposits, intake goo, throttle body bore and plate residues, and idle air motor deposits are some good reasons to use a catch can. Maybe less filth on the rings is a factor, too.
Where do you think the gunk and goo in the catch can would end up??
Absolutely no question if it works or not.
 
You missed the point.

The question is: is there any real benefit? As stated, it works on ANY engine. Show me a real world tangible benefit, not just feel good cleanliness. Show me horsepower, fuel mileage, engine life, ANYTHING?

Sorry, but if it was such a big deal it would already be on there. Just a simple purge valve controlled by the ECU or a dashboard light to tell you it's full, not expensive either.
 
Originally Posted By: SteveSRT8
You missed the point.

The question is: is there any real benefit? As stated, it works on ANY engine. Show me a real world tangible benefit, not just feel good cleanliness. Show me horsepower, fuel mileage, engine life, ANYTHING?

Sorry, but if it was such a big deal it would already be on there. Just a simple purge valve controlled by the ECU or a dashboard light to tell you it's full, not expensive either.


Maybe you are correct, but I for one LIKE, "feeling good"!
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