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      02-23-2015, 03:55 PM   #1
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Mishimoto N54 Catch Can R&D

Hey Guys,

We've started tackling our take on a catch can solution for the N54. Check out the details on our blog, or posted within this thread. Feel free to chime in with any comments or questions!

http://engineering.mishimoto.com/cat...kit-2007-2010/

Developing a N54 Catch Can Solution, Part 1: Initial Prototype


BMW 335i test vehicle

The BMW N54 is a fantastic engine that produces great power in stock form and responds very well to basic modifications such as exhaust and ECU tuning. However, if you do not stay on top of servicing your BMW, maintenance and repair bills can certainly cast a shadow on 135i or 335i ownership. One of the primary challenges is dealing with valve buildups caused by oil entering the intake tract. Because the N54 is a direct injection engine, it does not benefit from the valve cleaning properties that a port injection engine can offer. Massive buildup can result in a loss of power and can have a negative impact on vehicle driveability.

Installing an oil catch can will slow down the speed at which this buildup occurs. An oil catch can separates oil contaminants from the CCV system, thus preventing these contaminants from ending up in the intake. The valve cleaning maintenance schedule can be greatly extended, saving you money and time. Considering a catch can upgrade as a preventive maintenance item is a wise investment for both stock and modified vehicles.

With this in mind, we began our R&D process to develop a solid catch can solution for N54 owners!

Initial Prototype Design

We started this project with our new compact baffled oil catch can, which utilizes all the features in our full-size unit, but is more appropriate for tight engine bay configurations such as with the E90.


Mishimoto baffled oil catch can internal components

This unit has a few features that enhance performance and set it apart from other units on the market. First, we use a bronze filter that provides efficient separation of fuel and oil particles from airflow passing through the can. Also, the internal baffle you see in the image above provides more surface area for fluid to condense, which will prevent fluid sloshing during hard cornering. This unit is constructed from CNC-machined 6061 aluminum and has been utilized in all of the direct fit kits we've engineered so far.

With this unit in hand, we worked up a bracket that would situate the catch can toward the rear of the engine compartment, in the closest proximity to the lines on the CCV breather system. The diagram below shows the line (#9) that we would be addressing.


N54 breather hose

We began by fabricating a rough mounting bracket that would allow our can to mount to the firewall.


First prototype bracket


First prototype bracket

We then fit this into position so we could address the lines we would need to create.


First prototype installed

We would then need to run lines to complete the kit. We typically use silicone to manufacture molded lines for these kits. We construct a prototype using bends and straight lengths of line to perfectly route the line around components.


First prototype line mock-up

Check out the final prototype lines.


First prototype lines

First Prototype Concerns

After completing all these components, we decided to evaluate the design to determine if any characteristics needed adjustment or change. We immediately found two glaring concerns.

First, servicing this can was not going to be quite as easy as we’d like. We try to make servicing these kits as simple as possible, but with the can located under the cowl cover, emptying the contents would not be a single-step process.

Second, our existing ports on the lid appeared to be too small for the actual line diameter. Yes, we could gradually increase the line size from the catch can to the engine connections, but this would potentially restrict flow. This concern influenced our decision to develop an alternate design for this kit. The first task would be to develop a new catch can lid that would feature larger ports for greater flow.

Check back with us next time for a look at the new catch can design. For now, we leave you with an image of our 3D-printed design!



3D-printed catch can lid

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      02-23-2015, 04:26 PM   #2
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Great products here guys!!
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      02-23-2015, 04:34 PM   #3
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Interesting!
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      02-23-2015, 05:37 PM   #4
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Awesome, looking forward to the finished product. Its good to see companys still developing new products for the N54
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      02-23-2015, 05:45 PM   #5
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What is going to be better about this than the BMS OCC? I sure like the BMS mounting setup better. Is this going to retail for less? Or somehow perform better?
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      02-23-2015, 05:53 PM   #6
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Awesome!! Im glad you assessed the 'ease' of access as an issue! This is the biggest gripe I have with the BMS one. HPF had one available which was extremely easy to access.

Also, I would consider doing vertical flat sided 'notches' or 'strips' on the bottom section of the OCC, this will make it 100% easy to twist, turn and remove. It gets oily and the smooth round surface makes it a real PITA!
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      02-23-2015, 05:57 PM   #7
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how about adding a 3rd tapped port for the people using the new AD engineering fittings to fix the carbon on the valves issue.
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      02-23-2015, 06:05 PM   #8
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I already sent him a message about that. Also, ADE will be releasing their own catch kit with the PCV and flapper delete fittings.

Quote:
Originally Posted by JBacon335 View Post
how about adding a 3rd tapped port for the people using the new AD engineering fittings to fix the carbon on the valves issue.
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      02-23-2015, 06:15 PM   #9
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AN fitted braided lines also for your inspiration
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      02-23-2015, 06:32 PM   #10
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Looks nice!
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      02-23-2015, 07:10 PM   #11
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I modified mine
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      02-23-2015, 08:14 PM   #12
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Nice!!!
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      02-23-2015, 09:12 PM   #13
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This should be good. I think the AN fittings would be freaking awesome!
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      02-23-2015, 09:31 PM   #14
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Quote:
Originally Posted by einbruch10 View Post
This should be good. I think the AN fittings would be freaking awesome!
I love AN fittings LOL!
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      02-23-2015, 09:34 PM   #15
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Quote:
Originally Posted by robc1976 View Post
I love AN fittings LOL!
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      02-23-2015, 10:26 PM   #16
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Quote:
Originally Posted by robc1976 View Post
I love AN fittings LOL!
oh my....... uhm does anyone have fresh underwear?
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      02-27-2015, 12:14 AM   #17
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any news on this yet?
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      02-27-2015, 01:30 PM   #18
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Quote:
Originally Posted by AutoTalent View Post
Great products here guys!!
Thanks!

Quote:
Originally Posted by altostratus View Post
Interesting!
Quote:
Originally Posted by Eat.Sleep.Race View Post
Nice!!!
Thanks for taking a look guys!

Quote:
Originally Posted by LightningTuned View Post
Awesome, looking forward to the finished product. Its good to see companys still developing new products for the N54
Thanks for the kind words! We really like the E90 chassis/engine setup and have really enjoyed developing new, interesting products. We are nearing the end of our product line coverage for this vehicle but if we see a new opportunity to make a neat component that folks need, we will certainly jump right in. We’ve been focusing quite a bit on BMW for the past year or so and we are looking closely at a few newer models for some development in 2015. Within our group we have E30, E36, E46 and E90 owners, and we are all pretty pumped about the recent projects tackled by the engineering group.

Quote:
Originally Posted by Nitrousbird View Post
What is going to be better about this than the BMS OCC? I sure like the BMS mounting setup better. Is this going to retail for less? Or somehow perform better?
There is no doubt that BMS makes a great system for these vehicles. We are tackling this project with a fresh set of eyes from our engineering team. Our hope is to start from scratch and design a kit that is easy to service, performs well, looks great, and comes in at price that provides excellent value for our customers.

Quote:
Originally Posted by _ink View Post
Awesome!! Im glad you assessed the 'ease' of access as an issue! This is the biggest gripe I have with the BMS one. HPF had one available which was extremely easy to access.
Also, I would consider doing vertical flat sided 'notches' or 'strips' on the bottom section of the OCC, this will make it 100% easy to twist, turn and remove. It gets oily and the smooth round surface makes it a real PITA!
Thanks for the feedback regarding the ease of servicing and the note about the catch can base. Our baffled unit features a knurled end which provides additional grip for removal. Check it out in the shot below.



We are pretty pleased with the ease of removal this provides.

Quote:
Originally Posted by JBacon335 View Post
how about adding a 3rd tapped port for the people using the new AD engineering fittings to fix the carbon on the valves issue.
Quote:
Originally Posted by blisstik View Post
I already sent him a message about that. Also, ADE will be releasing their own catch kit with the PCV and flapper delete fittings.
Quote:
Originally Posted by robc1976 View Post
I modified mine
Thanks guys! We just checked out the modifications outlined by Rob, very impressive stuff. We also passed this around our engineering group. This looks like a great setup for highly modified examples. That being said, drilling and tapping the head is not something we expect our “average” consumer to be interested in. Our goal with this particular kit will be an easy installation and an effective product. The method for separation outlined in Rob’s guide is potentially more effective at removing contaminants, however we would be interested in testing this to put some hard data behind the accumulation results and effectiveness. One concern would be the amount of customers interested in performing this level of vehicle modification. If we see enough interest in a second kit designed to function more like Rob’s setup, we can certainly explore that as an additional kit. Our engineers would be happy to tear into the N54 a bit further for a closer look at this process/system.

Thanks!

Quote:
Originally Posted by _ink View Post
AN fitted braided lines also for your inspiration
Quote:
Originally Posted by einbruch10 View Post
This should be good. I think the AN fittings would be freaking awesome!
Quote:
Originally Posted by robc1976 View Post
I love AN fittings LOL!
Thanks for the input guys! These kits do not typically include AN fittings. Our existing lineup of direct fit catch cans utilize push-on fittings and direct-fit molded lines. Our line connections thread into the can, which means offering a AN option is certainly something that is possible. That being said, these lines do not see a pressure substantial enough to necessitate a fitting of this type, it would be strictly for aesthetic purposes. Any others prefer an AN fitting over a push-on style?

Quote:
Originally Posted by einbruch10 View Post
any news on this yet?
Sorry for the delay in response! The shop has been quite busy this week with dyno runs and other product testing (Mustang EcoBoost related). We should have an update on this particular project within the next couple of weeks.

Keep any comments/recommendations coming!

-John
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      02-27-2015, 01:48 PM   #19
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Count me in as someone who would value multiple AN options. I'm still on the fence about tapping the head, but right now i'm VTA and it's gross. Need to get a good source of vacuum back on the crankcase.
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      02-27-2015, 02:38 PM   #20
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Thanks for the update! I think if you offered the option to upgrade the kit with the AN lines it would work better. The average customer would probably opt for the regular molded lines which would still be a fantastic looking option. But having the extra option for AN would probably draw more publicity as well as people getting rid of their old setup for this one because of it (being the overall look and possible upgrade of tapping).
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      02-27-2015, 05:09 PM   #21
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Quote:
Originally Posted by 135Pats View Post
Count me in as someone who would value multiple AN options. I'm still on the fence about tapping the head, but right now i'm VTA and it's gross. Need to get a good source of vacuum back on the crankcase.
Thanks for chiming in!

Quote:
Originally Posted by einbruch10 View Post
Thanks for the update! I think if you offered the option to upgrade the kit with the AN lines it would work better. The average customer would probably opt for the regular molded lines which would still be a fantastic looking option. But having the extra option for AN would probably draw more publicity as well as people getting rid of their old setup for this one because of it (being the overall look and possible upgrade of tapping).
Recommendation noted and greatly appreciated.
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      02-27-2015, 06:03 PM   #22
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Really appreciate you taking in the feedback so openly - hope this is a sign of great things to come!

Here's my 2cents on this..

Whilst the 'slip on' approach may appeal to new owners to the platform, I would say 95% of current owners who are modified already have an OCC in place already. This in itself is a huge opportunity which your slip on solution would have little to no appeal to.

The AN option will address this broadening your market penetration and options to users who are already highly modified.

However, I would definitely not tap my heads like Rob has done - I'm crafty, but not that crafty!

The problem with existing OCC's in the market today are:

- Hard to access
- Hard to empty
- No aesthetically pleasing hose choice

Addressing these key things will make your product appealing to 100% of new and existing owners, with the caveat that it is priced well.
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