Oil catch cans may look simple, but they can play a big role in protecting the health and performance of your engine. This is especially true in racing or if you’re running a modern direct-injected setup. By trapping oil mist and other contaminants before they reach the intake, a catch can helps prevent the carbon buildup that can rob horsepower and efficiency over time. The new Moroso Catch Cans offer maximum efficiency and control in crankcase ventilation.

Why Catch Cans Matter

Every internal combustion engine generates blow-by, where pressure sneaks past the piston rings and builds inside the crankcase. To relieve this pressure, manufacturers run a hose from the crankcase, often from the valve cover or valley cover, to the intake manifold. The downside is that this hose doesn’t just carry air; it also carries oil vapor and other byproducts from the combustion process. Left unchecked, these contaminants coat the intake manifold and valves, reducing airflow, hurting combustion efficiency, and even causing misfires in severe cases.

The Direct Injection Problem

This problem is amplified in direct-injected engines. In older carbureted or port-injected designs, the fuel passes over the intake valves and effectively washes away oil deposits. But direct injection sprays fuel directly into the combustion chamber, so there’s nothing to keep buildup from forming. A catch can, plumbed into the breather hose, acts as a filter that traps the unwanted crud before it can reach the intake.

Performance Benefits

Beyond daily driving, catch cans also shine in high-performance street and racing applications. When paired with an external vacuum pump, like Moroso’s system, a catch can keeps the oil mist collected instead of venting it into the atmosphere or onto the track. The vacuum pump itself reduces crankcase pressure, lowers parasitic drag, and improves ring seal—all of which translate to more horsepower. By placing a catch can on the outlet side, you capture the contaminants while maximizing the performance benefits.

Moroso’s Billet Catch Can Design

Moroso has unveiled its latest Billet Oil Catch Cans, engineered for racers and performance enthusiasts looking for maximum efficiency and control in crankcase ventilation. Featuring an internal baffled design, these catch cans effectively separate and trap oil mist, keeping it contained in the tank and preventing filter saturation, ensuring cleaner operation and longer service intervals.

Constructed with billet-machined tops and bottoms, the Moroso catch cans are finished in a sleek black anodizing for both durability and a premium appearance. Each catch can comes complete with a matching billet mounting bracket that allows the unit to be clocked for optimal fitment, making installation straightforward in a wide range of applications. Designed for versatility, the catch cans can be plumbed to valve covers, Moroso Vacuum Pumps, Moroso Dry Sump Tanks, and more.

Engineered for Easy Installation and Service

Practical features include a replaceable breather element, serviceable -AN O-ring fittings, and a petcock drain for quick and easy maintenance. Measuring 3.00 inches in diameter, with a 5.8-inch tank height and 8.8-inch overall height, these compact units offer a balance of performance and packaging flexibility. With Moroso’s reputation for quality and innovation, these new Moroso catch cans provide a reliable solution for street and race builds alike.