After removing both catch cans for data collection in our previous post, we discussed the idea of relocating the bracket that holds the PCV catch can to a different area in the engine bay. We mentioned earlier that we were toying with the idea because the current location of the Fiesta ST catch can raised some concerns. One of them being that the current location for the catch can would interfere with right-hand drive (RHD) applications of the Fiesta ST, and we want this catch can to be all inclusive. In addition, it came to our attention later on that it would also interfere with some aftermarket intakes.  We try to take common Fiesta ST parts upgrades into consideration so that the products we make will fit all Fiesta STs. The consensus was that because there was a bit more room further forward in the engine bay to relocate the catch can, that would be the way to go.

Bracket and Hose Setup

With this new location in mind our engineers began fabricating a preliminary mounting bracket

So far this Fiesta ST has had an interesting life with Mishimoto. The very same day that we drove it off the lot, it was rolled into our development facility and fitted for its first modification: a prototype baffled catch can kit. Why did we chose to begin with this? From our experience with other EcoBoost equipped vehicles, we know how prone these engines are to blow-by and carbon buildup. If you want to read more in depth about the benefits of a catch can, check out our complete write up on Blow-By 101. Installing a catch can right away allows us to protect the engine of our new development vehicle and gives us more time for data collection as we work on developing additional Fiesta ST parts. Last, but certainly not least of all, we asked for your feedback and received an overwhelming response to create a Fiesta ST catch can (yes we do listen to you!).

One of our engineers fabricating some sweet Fiesta ST parts

Test Fitting

After pulling it into the shop and having a quick look, our

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

Mishimoto Ford Focus ST Baffled Oil Catch Can Kit

After making mockups for our initial setup and evaluating short-term testing data, our team came to a few conclusions. First, we would be incorporating our catch can into the PCV line only. Our brief accumulation test showed that we had substantial fluid accumulation with the PCV line, while the CCV can ended up dry. Second, our mounting location was really subtle and created a factory-like fitment with no visible lines. Last, the ST produces quite a lot of contaminants even in a short period of time, so a catch can is going to be a great upgrade in terms of preventive maintenance.

Bracket Fabrication

Next on our to-do list was final bracket fabrication. Something more stout and aesthetically pleasing were our targets. We would also only need to accommodate one catch can as opposed to our original mockup bracket.

Time to fire up the welder

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

Mishimoto Ford Focus ST Baffled Oil Catch Can Kit

Ford Focus ST test vehicle

As you may be aware, our engineering team has been wrenching away on this Focus ST to develop a slew of awesome products for the community. Our oil cooler development is underway, and alongside this project we began to experiment with a direct-fit oil catch can system. Now, you may be wondering exactly how necessary such a product is.

Discussions around the community have covered the impact of oil within the intake system and its effect on valve buildup. In short, the lack of port injection (the EcoBoost uses direct injection) results in much of the oil within the intake system coating your valves. In a port-injection engine, the fuel passing over the valves works as a cleaning agent to prevent buildup. Without this happening, these buildups can restrict airflow and cause turbulence to airflow prior to entry into