Mishimoto's Dodge Ram 5.7L Hemi Oil Catch Can R&D

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Mishimoto

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Blow-By Verified – Oil Catch Can R&D, Part 1: That’s…A Lot of Oil

What do carbon-deposit caked valves, decreased fuel economy, oily intake tracts and inefficient combustion all have in common? The resulting effects of engine oil blow-by. During combustion, the top side of the piston forces combusted gasses, with remnants of fuel and oil past the piston rings, and into the crankcase. This would force the crankcase to become pressurized without some sort of relief, so the content of what enters the crankcase exits the system through a positive crankcase ventilation (PCV) system and gets recycled through the engine via the intake tract.

MG_4681rrr.jpg

You may have heard of a device called an air oil separator or AOS. These devices tap into your PCV routing system and are intended to separate the oil vapor from the incoming air. Well-constructed AOS systems can be of some use, but there is one crucial issue here. The separated content is usually routed right back into the engine, in many ways severely reducing the usefulness of the device. The reason they are designed like this is to limit the amount of maintenance the driver needs to do on the car. Many manufacturers have an AOS system built-in with their engines from the factory, but the reality of the situation is that preventing blow-by can be done with much more effectiveness.

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The way to restrict the blow-by is by containing it. This is done with the use of a catch can. Catch cans tap into the PCV system, just like AOS kits, but instead of anything being recycled, the collected content stays inside of the can. How well these catch can kits perform their duties varies, depending on the design. Luckily, we have, what many consider to be a top-notch design.

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Our can uses a baffle which does two things: 1) prevents anything caught from spillling back into the ports and 2) helps to condense oil and fuel vapors. Every can we make also has internal air diverters to help increases air turbulence the air, driving a more effective air-oil separation process. Another feature for this can includes a 50-micron bronze filter that helps clean the air going back into your system. The only drawback to this type of design is you’d need to empty the can to drain the contents. It’s another step regarding maintenance, but it’s worth it in the name of engine protection.

If you are an owner of a 2009+ Dodge Ram with a 5.7L Hemi, you have probably heard of blow-by issues. A clear indicator of blow-by wreaking its havoc on your engine is finding oil coating the inside of your intake tube or intake manifold. It’s not all bad though. We’re here to help.

Now that you have a clear idea of how we tackle the blow-by issue, we want to apply our design to the Dodge Ram. We explored the usefulness of our catch can on this truck. After locating the PCV system and a secure mounting point for the can, we applied a prototype kit.

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The driver had planned some long-distance highway driving for the weekend, so it would be the perfect distance for our experiment. When the truck returned to our garage the following Monday, our engineer cracked open the can to see what was caught, and it delivered.

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Is the above image a little tough to see? Let me clear that up for you.

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The near full beaker is the content we collected from our shop 2009 Dodge Ram 5.7L Hemi. In just under 1500 miles of driving, our can nearly hit its 2oz capacity with blow-by content going over the 40ml mark. We’ve never seen a can fill up so fast in such a short amount of time. It was startling to say the least. And this wasn’t a freak occurrence. We’ve had this can mounted on the truck for the past couple of months, and it consistently catches well over 30ml of blow-by when the mileage hits over 1000 miles.

We know this setup works, we now must make it completely functional. The bracket and lines are both still in the prototyping stage, in the next update, we’ll finalize our design and reveal what the final kit will look like. Thanks for reading!

-Diamaan
 

SyN

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:favorites13:

:happy107:

Just think about the average Hard Working owners whom are working hard everyday to make ends meet.

Don't think first about big profits & price this within reason!
You will sell 4X more by giving us a Great Product @ a Fair Price!

Just don't Over Price this Unit!
 
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Casper

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Very informative write-up. Confirms what those of us with catch cans have been trying to educate the naysayers about for years.

One thing that would be really informative is if you had tear-down pictures of hemi heads run with a catch can and run without a catch can , side by side to show some of the negative outcomes from all that blow-by being re-ingested by the intake system.

That would sell some cans!
 
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Mishimoto

Mishimoto

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Very informative write-up. Confirms what those of us with catch cans have been trying to educate the naysayers about for years.

One thing that would be really informative is if you had tear-down pictures of hemi heads run with a catch can and run without a catch can , side by side to show some of the negative outcomes from all that blow-by being re-ingested by the intake system.

That would sell some cans!

Glad you enjoyed the read!

That would help the cause, but that isn't something we can really do on the Ram we are currently working with. It actually belongs to an employee here! However, I can show you an image of one of our other projects for reference.

Manifold-6.jpg

Oil-Buildup-1.jpg

Above is a shot of an intake manifold we removed for a 2016 Mazda Miata catch can project. This car had just 3,300 miles on the clock, but there was already oil coating the intake manifold! I like showing this because even with a car that is brand new, the effects of blow-by already began taking its toll.

Now I know that this is a very different car, with a very different engine, aimed at a very different market, but I only want to show that to you to give you a point of reference. And you guys already know that the Ram can put out a lot of blow-by, as we've also shown above. This is an issue that plagues even the newest of engines sporting direct injection, we just want to provide you guys with a well documented and proven preventative measure that will do your Hemi good in the long run!

-Diamaan
 

Jwithing

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Out of curiosity, what made you all want to get into catch cans? Do you think your design is better? Cheaper?

I'd recommend giving a few units away to forum members that are willing to compare them against other cans that they are currently running, with pics and reviews of course.

I've gotta billet can and would be willing to do a comparison. :)
 

Jwithing

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Just checked your site out.... You guys should make a larger oem replacent radiator for the 1500. They're undersized and there's interest for larger, but nobody seems to make one.
 

DailyRam

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I think you could find a number of people will to support. I have been looking at adding a catch can for some time, i just hadn't landed on a brand/model yet. If there is a "Tester" option, i'd be willing to participate.
 

whetrick1

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I'm currently running a billet tech on my 2016 Ram. I put mine on right after I bought it. Read about it on this forum. And I've seen what the catch can really does. And it really works well.


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Casper

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Glad you enjoyed the read!

That would help the cause, but that isn't something we can really do on the Ram we are currently working with. It actually belongs to an employee here! However, I can show you an image of one of our other projects for reference.

Manifold-6.jpg

Oil-Buildup-1.jpg

Above is a shot of an intake manifold we removed for a 2016 Mazda Miata catch can project. This car had just 3,300 miles on the clock, but there was already oil coating the intake manifold! I like showing this because even with a car that is brand new, the effects of blow-by already began taking its toll.

Now I know that this is a very different car, with a very different engine, aimed at a very different market, but I only want to show that to you to give you a point of reference. And you guys already know that the Ram can put out a lot of blow-by, as we've also shown above. This is an issue that plagues even the newest of engines sporting direct injection, we just want to provide you guys with a well documented and proven preventative measure that will do your Hemi good in the long run!

-Diamaan
Thanks!

Now, if you had intake valve stem/valve seat pictures you'd be selling cans like nobody's business!
 
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Mishimoto

Mishimoto

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Out of curiosity, what made you all want to get into catch cans? Do you think your design is better? Cheaper?

I'd recommend giving a few units away to forum members that are willing to compare them against other cans that they are currently running, with pics and reviews of course.

I've gotta billet can and would be willing to do a comparison. :)

Our direct fit catch can line has proven to be very effective on a wide array of different vehicles and engines, so we wanted to see what we could do with the Ram. It was easy to do testing because an employee drives the truck to work everyday and does a lot of long distance driving, a perfect candidate. When we saw just how much blow-by we were getting, we couldn't ignore it.

And that's an interesting idea! I'll look into what we can do.

Just checked your site out.... You guys should make a larger oem replacent radiator for the 1500. They're undersized and there's interest for larger, but nobody seems to make one.

^^^^^this!!!!!!

Not a bad suggestion guys, we have an OEM replacement, but we don't have a stronger, upgraded aluminum replacement. I'll be sure to make the suggestion to our Market Research team!

I think you could find a number of people will to support. I have been looking at adding a catch can for some time, i just hadn't landed on a brand/model yet. If there is a "Tester" option, i'd be willing to participate.

Good to know, thanks!

Can you design one with a drain on the bottom??

We actually sell drain kits separately for you to purchase. With where we are planning to mount this can, it may be tough to route drain lines.

-Diamaan
 

Sir John

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I've been running a UPR catch can since new...got 6,000 mile on the truck now. It does not catch as much as you show so I would be very interested to compare. I suggest you get a larger capacity on your design!
 
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Mishimoto

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I've been running a UPR catch can since new...got 6,000 mile on the truck now. It does not catch as much as you show so I would be very interested to compare. I suggest you get a larger capacity on your design!

We are actually going to be using a larger capacity can! Our catch can bottom will be larger than our standard capacity 2oz can. We actually had to get a bigger can because the blow-by kept filling up past the baffle. More to come in the next update!

-Diamaan
 

Demon-HeMi

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will this work on the v6 rams?
 
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Mishimoto

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will this work on the v6 rams?

Unfortunately, this kit is specifically designed for the V8 5.7L Hemi engines. If there is enough interest, we could look into a V6 option later on down the road though.

-Diamaan
 

DailyRam

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Diamaan, have you looked to see if the Cummins rad you produce will fit the hemi engine bay? I think the models with active shutters might have challenges, but like others have indicated, there is a void in the market for a good aftermarket radiator for the hemi. Sounds like you might already have a test mule in the shop ;)
 
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Mishimoto

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Diamaan, have you looked to see if the Cummins rad you produce will fit the hemi engine bay? I think the models with active shutters might have challenges, but like others have indicated, there is a void in the market for a good aftermarket radiator for the hemi. Sounds like you might already have a test mule in the shop ;)

After speaking with one of our engineers who actually worked on the Cummins radiator, it's tough to say whether it would fit. By looking at the stock radiators side-by-side, it doesn't look like ours would fit in 5.7L.

I can say that I've already forwarded the interest in this thread for an aluminum 5.7L radiator! It's something that we may look into later.
 

tsielski

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The radiator in the Ram 1500 with the 5.7 hemi has core dimensions of 27" wide, 21.5" tall and 1" thick.
The single large radiator in Cummins equipped Rams (FCA went to two radiators in the 2013 MY I believe), has core dimensions of 26.7" wide, by 32.3" tall by 1.6" thick.
Though the width of the two radiators would be similar, the 10" increased height of the Cummins radiator would require either a different radiator support bracket, or some fabrication to be fitted to a 1500. I also believe transmission cooling is incorporated in the Ram 1500 radiator, where in the Cummins (with auto) radiators have separate, large trans coolers mounted in front of the radiator.
The ideal set up would be an all aluminum radiator for the Ram 1500's that fits the factory location, but is multi-core and 2" to 3" inches thick. Offset adaptors, or minor alterations may be needed to mount other pieces such as the shroud, electric fan, and the shutters on a thicker core radiator. And a separate cooler for the transmission would also be needed with appropriate mounting hardware.
Would love to see one tho.
 
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Mishimoto

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The radiator in the Ram 1500 with the 5.7 hemi has core dimensions of 27" wide, 21.5" tall and 1" thick.
The single large radiator in Cummins equipped Rams (FCA went to two radiators in the 2013 MY I believe), has core dimensions of 26.7" wide, by 32.3" tall by 1.6" thick.
Though the width of the two radiators would be similar, the 10" increased height of the Cummins radiator would require either a different radiator support bracket, or some fabrication to be fitted to a 1500. I also believe transmission cooling is incorporated in the Ram 1500 radiator, where in the Cummins (with auto) radiators have separate, large trans coolers mounted in front of the radiator.
The ideal set up would be an all aluminum radiator for the Ram 1500's that fits the factory location, but is multi-core and 2" to 3" inches thick. Offset adaptors, or minor alterations may be needed to mount other pieces such as the shroud, electric fan, and the shutters on a thicker core radiator. And a separate cooler for the transmission would also be needed with appropriate mounting hardware.
Would love to see one tho.

Thanks for the info!

I spoke with our market research department and they are looking into it.

-Diamaan
 
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