Ford Focus RS Baffled Oil Catch Can 2016+

Testing is complete! Although we would still like to be cruising through twisty back roads logging R&D miles, it is time to bring the Focus RS back to the stables to examine our catch can. When we test our catch cans, we try to put a wide variety of miles on the car to best replicate normal driving situations. We send one of our engineers out into the wild to put our development vehicle through its paces and ensure our products are functioning as designed.

Focus RS catch can testing

Blow-by Meets it's Match

Although our compact baffled oil catch can has been tried and tested numerous times, we still want to put it through the ringer to ensure that it functions just as nicely on every application. Just like our previous catch can kits, our compact baffled oil catch can has proven itself once again and our testing went off without a hitch. Upon initial investigation we noticed oil buildup in the hose leading to the catch can, on the internals of the catch can, and pooled in the bottom

It's the year of the horse"power, that is, wherein the land of the aftermarket, power modifications are king. They are the body builders of the modifications stomping around yelling about protein, bro. We all want to beef up our cars and hear them roar in the face of their stock counterparts. Understandably, it is easy to get caught up in the excitement of dyno charts and power numbers while overlooking the little guy in the background. This little guy, probably talking about something nerdy, is our good friend the catch can. He doesn't scream horsepower, but instead whispers about carbon buildup on valves. And for this post at least, we are going to hear him out.

If you missed our last post, we discussed the importance of using a catch can on our brand-new Focus RS. If you want to read more about the horrors of blow-by check out  our complete write up on Blow-By 101. In this post we are going to give the catch can a chance to put its money where its baffle is.

The first step was

The Focus RS is a big hit at the Mishimoto headquarters, and we want to make sure to protect our newest addition. If you missed Kyle Mohan testing out the Focus RS drift mode, check out our Focus RS Drift Video. Luckily one of the first projects up to bat is our direct-fit baffled oil catch can. We know that the necessity of an oil catch can is a hotly debated topic among many car communities, and the Focus RS is no exception. From previous projects and research online, we've learned that blow-by is a real presence in these EcoBoost engines.

Focus RS Oil Catch Can R&D

Focus RS Catch Can R&D

Catch Can 101

What is this notorious blow-by that I speak of? Blow-by is the unburnt oil and fuel mixture that blows past the piston and into the crankcase. Modern engines have a CCV (Crank Case Ventilation) system for emissions purposes. The CCV directs the blow-by back into the intake to be burned in the combustion chamber. Unfortunately, on its way back into the engine, blow-by leaves a nice oily