Page 5 - catch can

Interested in purchasing our WRX or STi catch can system? Check out more details on our product pages linked below!

Subaru WRX Baffled Oil Catch Can System

Subaru STi Baffled Oil Catch Can System

After completing the fabrication of our brackets for this kit and assembling the STI-specific lines, it was time to tackle the WRX. As you may be aware, the stock CCV lines are slightly different on the WRX, which necessitates a separate set of WRX-specific catch can lines.

The Test Subject

After reaching out to local contacts, we found a willing vehicle donor just one state away. We have borrowed this particular vehicle on several occasions for a variety of test fittings. A big "thank you" to the owner for lending his vehicle and his time for the sake of awesome new product development!

2011 WRX test-fit vehicle

This vehicle is kept super clean; check out the engine bay!

2011 WRX test-fit vehicle engine bay

This owner also has our cold-air intake setup installed!

Mishimoto intake installed

WRX

Interested in purchasing our WRX or STi catch can system? Check out more details on our product pages linked below!

Subaru WRX Baffled Oil Catch Can System

Subaru STi Baffled Oil Catch Can System

Mishimoto 2010 STI

After developing a highly successful, direct-fit catch can setup for the 2015 WRX we turned our attention to the previous generation. Our next target would be the 2008-2014 WRX and STI. At this point, Mishimoto still owned a 2010 STI, and this project would be our last for our shop vehicle.

Catch Can Selection

As with our 2015 WRX project, we would be using a dual catch can system to address both the PCV line and the crankcase breather line. One of the main differences would be the inclusion of a three-port breather catch can to replace the two-port unit used on the FA20 engine. The EJ engine features a breather line for each valve cover, which necessitates a dual-in, single-out catch can for that system. The PCV line would still use a standard dual-port catch can for the EJ.

Interested in picking up this awesome catch can system? Check out more details on our product page!

Mishimoto Subaru BRZ / Scion FR-S Baffled Oil Catch Can

Ready for some interesting test results? After around 2,000 miles on a BRZ, this kit was ready to be inspected to see what kind of byproduct had accumulated in each can. The plan was to evaluate both systems to determine whether a single- or dual-can setup was necessary. If one of the lines did not collect any fluid, the need for a catch can would not be justified. So, we popped the hood and inspected the system to see if road abuse had a negative impact on the mounting brackets or lines.

Mishimoto prototype BRZ catch can kit installed

All our components held up just fine, as expected. All mounting brackets were still securely positioned, and the lines appeared to be in great shape (no rubbing). First, we popped off the can spliced into the PCV line of the BRZ. These images also show that we have provided plenty of room below the can

Interested in picking up this awesome catch can system? Check out more details on our product page!

Mishimoto Subaru BRZ / Scion FR-S Baffled Oil Catch Can

Second Prototype Bracket Fabrication

Now that we had our catch can ready to go, it was time to select mounting locations, and fabricate the mounting brackets. First, we will start with the PCV line we initially targeted with the large catch can we had. Check out some initial mock-up shots!

Prototype PCV Catch Can mounted

Prototype PCV Catch Can mounted

Compared to the previous mounting point, we have moved this catch can to a more centralized position. We are no longer using the battery tie-down as a mounting point. This provides a cleaner install, and it also provides space for the brake booster/master on RHD vehicles. The lines shown in the image are purely for mockup and routing purposes.

We will likely offer these lines in our standard three colors; black, blue and red. We also use silicone lines for all of our direct fit kits. Silicone

Interested in picking up this awesome catch can system? Check out more details on our product page!

Mishimoto Subaru BRZ / Scion FR-S Baffled Oil Catch Can

Welcome back to the build of our BRZ/FR-S catch can system! After laying out the guidelines from the last post, we were ready to get some hands on the vehicle and start piecing together some can brackets. Before jumping into product design, we will quickly cover the unique injection system featured on the BRZ/FR-S FA20 engine.

FA20 Fuel Injection

As many of you are aware, the FA20 is not what you could consider a traditional direct-injection engine. This specific system is identified as D-4S on the top of your intake manifold. The system utilizes four direct injectors and four port injectors for appropriate fueling. Yes, your 4-cylinder has eight injectors! The direct injection portion of the system is key for an efficient combustion process, and it allows for a high compression ratio without exaggerating the fear of detonation. Adding

Interested in picking up this awesome catch can system? Check out more details on our product page!

Mishimoto Subaru BRZ / Scion FR-S Baffled Oil Catch Can

Why a Catch Can?

Catch cans are used only for turbocharged vehicles, right? This is a question we hear all the time. Yes, a turbocharged vehicle is more likely to produce greater blow-by, resulting in a more prominent collection of debris in the intake manifold and tract. That being said, any engine is certainly susceptible to oil and fuel collection due to the use of PCV and CCV systems, which improve engine efficiency and provide cleaner emissions. Mishimoto has been working on developing several direct-fit oil catch-can systems for a variety of vehicles. So far we have completed kits for the Subaru WRX/STI for 2008-2015. We have also experimented with a kit for the BMW E90, a vehicle that suffers from intake valve buildups that require frequent servicing. With the arrival of our 2015 Ford Mustang EcoBoost test vehicle, we also began

Interested in purchasing this catch can? Check out our product page for more information!

Mishimoto Compact Baffled Oil Catch Can

The project is complete! We are very pleased with the outcome, and we expect a ton of positive feedback on this product. In fact, three or four of our employees have already reserved units for their personal vehicles. Speaking of " I should pick up one for my NB Miata!

The production quality catch can is now prepared for your viewing pleasure. Check it out below, starting with the base of the can.

Mishimoto Compact Baffled Catch Can base

Mishimoto Compact Baffled Catch Can base

Here's a look at our final catch can top by itself and next to our raw prototype unit. The black anodized finish is durable and looks fantastic.

Mishimoto Compact Baffled Catch Can top

Mishimoto Compact Baffled Catch Can top

Mishimoto Compact Baffled Catch Can top

Mishimoto Compact Baffled Catch Can top (left) and raw prototype top

Mishimoto Compact Baffled Catch Can top disassembled

The

Interested in purchasing this catch can? Check out our product page for more information!

Mishimoto Compact Baffled Oil Catch Can

The CNC-machined components keep rolling in! Our last prototype has been constructed and is now ready for our final evaluation before beginning mass production of these units. This prototype is a raw aluminum version; our final version will feature a black anodized finish.

The first completed component is the base/can portion of the product. This is a CNC-machined piece with internal threading on the upper portion, a port on the bottom for a drain or valve, and knurling at the bottom for ease of removal.

Mishimoto catch can final prototype, base

Mishimoto catch can final prototype, base

In the image above, you can see that we did some road testing with this catch can, using one of our employee's vehicles, to ensure that it was operating as we designed it. Everything checked out, and we caught quite a bit of oil even during short periods of driving!

Mishimoto

Interested in purchasing this catch can? Check out our product page for more information!

Mishimoto Compact Baffled Oil Catch Can

Time to fabricate/prototype our awesome catch can design! We would be using our in-house fabrication equipment and our 3D printer to develop a plastic and metal prototype.

Prototype Fabrication

We began by fabricating the base of the can from aluminum. Dan set to work cutting, welding, and polishing the base you see below.

Fabricated base for new oil catch can

Notice that the base of this can does not feature a drain. We did not incorporate one into our initial fabricated component, but we do plan to add a drain port on the base for those who wish to install a valve or drain line to the oil pan. No details were left untouched during development.

Next, we printed a unit and coated the inside for testing. The 3D printed material is somewhat porous. We use an internal coating that properly seals the components and provides a surface with properties similar to our

Interested in purchasing this catch can? Check out our product page for more information!

Mishimoto Compact Baffled Oil Catch Can

Initial 3D rendering of Mishimoto Compact Baffled Oil Catch Can

So we asked ourselves, what makes a catch can appealing to the masses? In a market swamped with extremely low-priced options, a new product could easily get lost in the mix of products already available. Our team began sifting through forums and asking our contacts at local shops to see exactly what they wanted from a catch can. We also reviewed our current line of products, to see if we could develop a new design that would fit within our current offerings.

An efficient catch-can setup is not generally perceived as a product that will impact engine performance or power. This is not true at all! A catch can will make a significant impact on the cleanliness of the intake components, including the charge air cooler (CAC) system, as well as reduce detonation within the combustion chamber. Oil coating